PM4-TCR Pro cess Mon i tor/con trol ler Op er a tion and In struc tion Man ual (in puts from RTDs, Ther mo cou ple, 4-20mA or di rect mv)

PM4-TCR Pro cess Mon i tor/con trol ler Op er a tion and In struc tion Man ual (in puts from RTDs, Ther mo cou ple, 4-20mA or di rect mv) AMALGAMATED INSTRUMENT CO PTY LTD ACN: 001 589 439 Unit 5, 28 Leighton Place Hornsby NSW 2077 AUSTRALIA Telephone: +61 2 9476 2244 Facsimile: +61 2 9476 2902 e-mail: sales@aicpl.com.au Internet: www.aicpl.com.au

Ta ble of Con tents In tro duc tion................................... 3 Me chan i cal In stal la tion............................. 4 Elec tri cal In stal la tion.............................. 5 Power sup ply con nec tions......................... 6 In put sen sor wir ing............................ 6 Re lay con nec tions............................. 6 In put link set tings............................. 6 Ex pla na tion of Func tions............................ 7 Er ror Mes sages............................. 18 Func tion Ta ble for fully optioned in stru ment................ 19 Cal i bra tion................................... 22 In put/out put Con fig u ra tion.......................... 25 Spec i fi ca tions................................. 26 Set ting up the re lay PI con trol ler....................... 27 Guar an tee and Ser vice............................ 34 TC09 17F15 Page 2 of 34

1 In tro duc tion This manual contains information for the installation and operation of the PM4-TCR Monitor. The PM4 is a general purpose monitor which may be configured to accept inputs from 100Ω or 1000Ω RTDs, thermocouple types B, E, J, K, N, R, S or T, 4-20mA or direct mv input in ranges up to 200mV. The instrument may be calibrated to display the temperature in C or F or absolute (degrees K) and if required to display temperature units e.g. 22 C. A standard inbuilt relay provides an alarm/control function, optional extra relays, retransmission (signal or dual channel) and excitation voltage may also be provided. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when optional outputs are fitted. Open circuit RTD or thermocouple inputs will cause an error message to appear on the display "----" for RTD inputs or "OPEN" for thermocouple inputs. Any relay with a high setpoint value set will be activated when either of these error messages is seen. Unless otherwise specified at the time of order, your PM4 has been factory set to a standard configuration. Like all other PM4 series instruments the configuration and calibration is easily changed by the user. Initial changes may require dismantling the instrument to alter PCB links, other changes are made by push button functions. Full electrical isolation between power supply, input voltage or current and retransmission output is provided by the PM4, thereby eliminating grounding and common voltage problems. This isolation feature makes the PM4 ideal for interfacing to computers, PLCs and other data acquisition devices The versatile PM4 has various front panel options, therefore in some cases the pushbuttons may be located on the front panel as well as the standard rear panel configuration. The PM4 series of Panel Mount Monitors are designed for high reliability in industrial applications. The high brightness LED display provides good visibility, even in areas with high ambient light levels. The high contrast LCD displays provide good visibility and are ideal for battery powered applications. The ^ and v pushbuttons can be used to toggle to the cold junction temperature (preceded by the message coid) or the actual mv input (preceded by the message INPt) when using thermocouple or mv input. The INPt display for 4-20mA input does not give a valid reading. Inputs & outputs Input: 100 Ohm RTD (Pt100) 1000 Ohm RTD (Pt1000) Thermocouple type B, E, J, K, N, R, S or T. 4-20mA or direct mv input (in ranges up to 200mV) A 1 A 2 A 3 A 4 P F Temperature o C Output: 1 x setpoint relay 18V transmitter supply (AC powered models only) Optional outputs: Up to six extra setpoint relays. Analog output (single or dual channel) Serial comms (RS232 or RS485) BCD/binary retransmission Alarm annunciator LEDs (5 digit LED display only) Setup pushbuttons (5, 6 & 8 digit LED display models only) Page 3 of 34

2 Me chan i cal In stal la tion If a choice of mounting sites is available then choose a site as far away as possible from sources of electrical noise such as motors, generators, fluorescent lights, high voltage cables/bus bars etc. An IP65 access cover which may be installed on the panel and surrounds is available as an option to be used when mounting the instrument in damp/dusty positions. A wall mount case is available, as an option, for situations in which panel mounting is either not available or not appropriate. A por carry case is also available, as an option, for panel mount instruments. Prepare a panel cut out of 45mm x 92mm +1 mm / -0 mm (see diagram below). Insert the instrument into the cut out from the front of the panel. Then, from the rear of the instrument, fit the two mounting brackets into the recess provided (see diagram below). Whilst holding the bracket in place, tighten the securing screws being careful not to over-tighten, as this may damage the instrument. Hint: use the elastic band provided to hold the mounting bracket in place whilst tightening securing screws. Vertical mounting (bar graph displays) Horizontal mounting 45mm 92mm 45mm PANEL CUT OUT PANEL CUT OUT 92mm 115mm Mounting bracket (2 off) 10mm 9.5mm max 9mm 48mm 44mm 91mm 53mm 104mm 111mm 96mm Page 4 of 34

3 Elec tri cal In stal la tion The PM4 Panel Meter is designed for continuous operation and no power switch is fitted to the unit. It is recommended that an external switch and fuse be provided to allow the unit to be removed for servicing. The terminal blocks allow for wires of up to 2.5mm 2 (terminals 1 to 6 and option outputs) or 1.5mm 2 (terminals 7 to 12) to be fitted. Connect the wires to the appropriate terminals as indicated below. Refer to other details provided in this manual to confirm proper selection of voltage, polarity and input type before applying power to the instrument. When power is applied the instrument will cycle through a display sequence, indicating the software version and other status information, this indicates that the instrument is functioning. Acknowledgement of correct operation may be obtained by applying an appropriate input to the instrument and observing the resultant reading. A B C D E F H J K 1 2 3 4 5 6 7 8 9 10 1112 SETUP PUSHBUTTONS MAINS EARTH AC NEUTRAL (DC+) AC ACTIVE (DC-) COM N/O RELAY 1 In + GND 3W/Transmitter supply + 4-20mA in Gnd Remote input In stru ment Rear Panel 1 2 3 MAINS EARTH 240VAC NEUTRAL 240VAC ACTIVE 5 6 7 8 9 10 11 12 RELAY 1 COM RELAY 1 N/O REMOTE INPUT GROUND 4-20mA in 3W / TRANSMITTER + GROUND IN + PM4-TCR-240-5E SERIAL No. Instrument data label (example) Page 5 of 34

3.1 Power sup ply con nec tions The power supply for the instrument is factory fitted and is of a fixed type. If you are unsure of the supply requirement for your instrument it can be determined by the model number on the instrument label:- PM4-TCR-240-... Requires 240VAC PM4-TCR-110-... Requires 110VAC PM4-TCR-32-... Requires 32VAC PM4-TCR-24-... Requires 24VAC PM4-TCR-DC-... Requires between 12 and 48VDC PM4-TCR-DCH-... Requires between 50 and 100VDC 3.2 In put sen sor wir ing Note: Only one input type can be used at any one time - see INPt type function 3W GND IN + 3W GND IN + GND IN + GND 4-20 IN 10 11 12 10 11 12 11 12 8 9 WIRE LINK 4-20mA RTD 2 WIRE RTD 4-20 IN RTD 3 WIRE RTD THERMOCOUPLE OR DIRECT mv INPUT V+ V+ V- GND 4-20 IN 9 10 F D 8 9 4-20mA INPUT 4-20mA WIRE LINK 4-20mA TRANSMITTER 4-20mA 4-20mA TRANSMITTER 2 WIRE 4-20mA INPUT USING STANDARD 18V UNREGULATED TRANSMITTER SUPPLY NOTE: AN INTERNAL LINK SETTING IS REQUIRED TO OBTAIN V+ AT TERMINAL 10 3.3 Re lay con nec tions The PM4 is supplied with one alarm relay as standard with connections on pins 5 and 6, extra relays are optionally available. The relay is a single pole, single throw type and is rated at 5A, 240VAC into a resistive load. The relay contact is voltage free and may be programmed for normally open or normally closed operation. 3.4 In put link set tings 2 WIRE 4-20mA INPUT USING OPTIONAL INTERNAL 24VDC (+/-12V) TRANSMITTER SUPPLY TRANSMITTER SUPPLY See the "Input/Output Configuration" chapter for instructions on removing the input board. 3W +18 3W +18 3W RTD input selected +18 +18V unregulated transmitter supply selected (available on AC supply models only) Page 6 of 34

4 Ex pla na tion of Func tions The PM4 setup and calibration functions are configured through a push button sequence. Two levels of access are provided for setting up and calibrating:- FUNC mode (simple push button sequence) allows access to commonly set up functions such as alarm setpoints. CAL mode (power up sequence plus push button sequence) allows access to all functions including calibration parameters. The three push buttons located at the rear of the instrument (also at the front on some display options) are used to alter settings. Once CAL or FUNC mode has been entered you can step through the functions, by pressing and releasing the F push button, until the required function is reached. Changes to functions are made by pressing the ^ or v push button (in some cases both simultaneously) when the required function is reached. Entering Front view of instrument Process Units Rear view of instrument SETUP PUSHBUTTON S 1 2 3 4 5 6 7 8 9 10 11F ^v SETUP PUSHBUTTONS SETUP PUSH BUTTONS CAL Mode Entering FUNC Mode F ^v 1. Remove power from the instrument. Hold in the F button and reapply power. The display will briefly indicate CAL as part of the "wake up messages" when the CAL message is seen you can release the button. Move to step 2 below. No special power up procedure is required to enter FUNC mode. 2. When the "wake up" messages have finished and the display has settled down to its normal reading press, then release the F button. Move to step 3 below. 1. When the "wake up" messages have finished and the display has settled down to its normal reading press, then release the F button. 3. Within 2 seconds of releasing the F button press, then release the ^ and buttons together. The display will now indicate FUNC followed by the first function. 2. Within 2 seconds of releasing the F button press, then release the ^ and buttons together. The display will now indicate FUNC followed by the first function. ^ ^ Note: If step 1 above has been completed then the instrument will remain in this CAL mode state until power is removed. i.e. there is no need to repeat step 1 when accessing function unless power has been removed. Page 7 of 34

Func tion C.SEt AxSP AxLo AxHi Description An a log con trol setpoint - seen only when the an a log re trans mis sion op tion is fit ted and REC ctri is set to on. Re fer to the sep a rate PM4 DIN Rail Me ter Op tional Out put Ad den dum book let sup plied when this op tion is fit ted. Alarm re lay setpoint - displays and sets the alarm re lay PI con trol setpoint. This func tion is only seen when the alarm op er at ing mode is set to pulse width or fre quency PI con trol op er a tion. Re fer to the Set ting up the re lay PI con trol ler chap ter if this mode is used. Alarm low setpoint - displays and sets the low setpoint value for the des ig nated alarm re lay. The low alarm setpoint may be dis abled by press ing the ^ and v pushbuttons si mul ta neously. When the alarm is dis abled the dis play will in di cate OFF. Use ^ or v to ad just the setpoint value if re quired. The alarm will ac ti vate when the dis played value is lower than the AxLo setpoint value. Each re lay may be con fig ured with both a low and high setpoint if re quired, if so the re lay will be ac ti vated when the dis play read ing moves out side the band set be tween low and high setpoints. The PM4 has an easy alarm access facility which allows access to the alarm setpoints simply by pressing the F button at the front or rear of the instrument. The first setpoint will then appear and changes may be made to this setpoint via the ^ or v buttons. Press the F button to accept any changes or to move on to the next setpoint. The instrument must be set in the manner described below to enable the easy access facility (if required): 1. The R.INP function must be set to SP.AC or the ACCS function must be set to EASY. 2. At least one alarm must have a setpoint, nothing will happen if all the alarm setpoints are set to OFF. 3. The SP.AC function must be set to allow access to the relays required e.g. if set to A1-2 then the easy access will work only with alarm relays 1 and 2 even if more relays are fitted. 4. The instrument must be in normal measure mode i.e. if the instrument is powered up so that it is in CAL mode then the easy access will not function. If in doubt then remove power from the instrument, wait for a few seconds then apply power again. 5. If the easy access facility is used then the only way to view or alter any other function settings is to power up via CAL mode i.e. no entry to FUNC mode unless the instrument is powered up in CAL mode. Alarm high setpoint - displays and sets the high setpoint value for the designated alarm relay. The high alarm setpoint may be disabled by pressing the ^ and v pushbuttons simultaneously. When the alarm is disabled the display will indicate OFF. Use ^ or v to adjust the setpoint value if required. The alarm will activate when the displayed value is higher than the AxHi setpoint value. Each relay may be configured with both a low and high setpoint if required, if so the relay will be activated when the display reading moves outside the band set between low and high setpoints. If the display shows the "----" or "OPEN" error message then any relay with a high setpoint value will activate. Page 8 of 34

Func tion AxHY Axtt Axrt Axn.o or Axn.c Ax Ltch Description Alarm hysteresis [deadband]) - displays and sets the alarm hysteresis limit and is common for both high and low setpoint values. The hysteresis value may be used to prevent too frequent operation of the setpoint relay when the measured value stays close to the setpoint. Without a hysteresis setting (AxHY set to zero) the alarm will activate when the display value goes above the alarm setpoint (for high alarm) and will reset when the display value falls below the setpoint, this can result in repeated on/off switching of the relay at around the setpoint value. The hysteresis setting operates as follows: In the high alarm mode, once the alarm is activated the input must fall below the setpoint value minus the hysteresis value to reset the alarm. e.g. if A1Hi is set to 50.0 and A1Hy is set to 3.0 then the setpoint output relay will activate once the display value goes above 50.0 and will reset when the display value goes below 47.0 (50.0 minus 3.0). In the low alarm mode, once the alarm is activated the input must rise above the setpoint value plus the hysteresis value to reset the alarm. e.g. if A1Lo is set to 20.0 and A1Hy is set to 10.0 then the alarm output relay will activate when the display value falls below 20.0 and will reset when the display value goes above 30.0 (20.0 plus 10.0). The hysteresis units are expressed in displayed engineering units. Alarm trip time - dis plays and sets the alarm trip time and is com mon for both alarm high and low setpoint val ues. The trip time is the de lay time be fore the alarm re lay will ac ti vate, or trip, when an alarm con di tion is pres ent. The alarm con di tion must be pres ent con tin u ously for the trip time pe riod be fore the alarm will trip. This func tion is use ful for pre vent ing an alarm trip due to short non crit i cal de vi a tions from setpoint. The trip time is selec over 0.0 to 999.9 sec onds. Alarm reset time - displays and sets the alarm relay reset time. With the alarm condition is removed the alarm relay will stay in its alarm condition for the time selected as the reset time. The reset time is selec over 0.0 to 999.9 seconds. Alarm x normally open or normally closed - displays and sets the setpoint alarm relay action to normally open (de-energised) or normally closed (energised), when no alarm condition is present. A normally closed alarm is often used to provide a power failure alarm indication. Alarm x latching operation. If set to OFF the alarm relays will not latch i.e. they will automatically reset when the display moves out of alarm condition. If set to on the relay will latch and will not reset until either the remote input or P button is used to clear the latch condition or if power is removed. The R.INP or P.but function must be set to A.cIr to clear the latch setting, see the R.INP function A.cIr function for a more detailed description of the operation of this function. If the 5 digit display with alarm annunciator LED's is used the alarm annunciators operates in the following manner: Light off - display not in alarm condition. Light flashing with "on" time longer than "off" time - display in alarm condition, relay latched and latch not cleared. Light flashing with "off" time longer than "on" time - display not in alarm condition, relay latched and latch not cleared. Light solidly on - display in alarm condition and latch cleared i.e. relay will now reset automatically when the display value moves out of the alarm condition. Page 9 of 34

Func tion Ax.SP, Ax.t1, Ax.t2 etc. Description Relay operation independent setpoint or trailing setpoint - each alarm may be programmed to operate with an independent setpoint setting or may be linked (or trailing) to operate at a fixed difference to another relay setpoint. The operation is as follows: Alarm 1 (AI) is always independent. Alarm 2 (A2) may be independent or may be linked to Alarm 1. Alarm 3 (A3) may be independent or may be linked to Alarm 1 or Alarm 2. Alarm 4 (A4) may be independent or may be linked to Alarm 1, Alarm 2 or Alarm 3. The operation of each alarm is selec within the Function Setup Mode by selecting, for example, (Alarm 4) A4.SP = Alarm 4 normal setpoint or A4.t1 = Alarm 4 trailing Alarm 1 or A4.t2 = Alarm 4 trailing Alarm 2 or A4.t3 = Alarm 4 trailing Alarm 3. For trailing set points the setpoint value is entered as the difference from the setpoint being trailed. If the trailing setpoint is to operate ahead of the prime setpoint then the value is entered as a positive number and if operating behind the prime setpoint then the value is entered as a negative number. For example, with Alarm 2 set to trail alarm 1, if A1Hi is set to 1000 and A2Hi is set to 50 then Alarm 1 will activate at 1000 and alarm 2 will activate at 1050 (i.e. 1000 + 50). If Alarm 2 had been set at -50 then alarm 2 would activate at 950 (i.e. 1000-50). See the trailing alarm which follows. Trailing Alarm Ta ble Showing Pos si ble Alarm As sign ments A2 A3 A4 A1 A2.t1 A3.t1 a4.t1 A2 A3.t2 A4.t2 A3 a4.t3 Ax OPEr brgt dull rec_ rec~ rec_ Ch 2 rec~ Ch 2 Alarm relay operating mode - this function allows selection of standard alarm on/off setpoint operation (Ax.AL) using the alarm functions described in this chapter or PI control operation (AxtP or Axfr). Refer to the "Setting up the relay PI controller" appendix for details of the PI control operations and functions. Display brightness - displays and sets the digital display brightness. The display brightness is selec from 1 to 15, where 1 = lowest intensity and 15 = highest intensity. This function is useful for improving the display readability in dark areas or to reduce power consumption. Remote display brightness - displays and sets the level for remote input brightness switching, see R.INP function. When the remote input is set to dull the remote input can be used to switch between the display brightness level set by the brgt function and the display brightness set by the dull function. The display brightness is selec from 0 to 15, where 0 = lowest intensity and 15 = highest intensity. This function is useful in reducing glare when the display needs to be viewed in both light and dark ambient light levels. Analog output low value - seen only when analog output option fitted. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Displays and sets the analog retransmission (4-20mA, 0-1V or 0-10V, link selec) output low value (4mA or 0V) in displayed engineering units. e.g. if it is required to retransmit 4mA when the display indicates 0 then select 0 in this function via the ^ or v button. Analog output high value - seen only when analog output option fitted. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Displays and sets the analog retransmission (4-20mA, 0-1V or 0-10V, link selec) output high value (20mA, 1V or 10V) in displayed engineering units. e.g. if it is required to retransmit 20mA when the display indicates 500 then select 500 in this function via the ^ or v button. Analog output 2 low value - seen only when dual analog output option fitted. See REC_ above for a description. Analog output 2 high value - seen only when dual analog output option fitted. See REC~ above for a description. The functions which follow are accessible via CAL mode only. Page 10 of 34

Func tion bar_ bar~ bar type Description Bar graph display low value - seen only in bargraph display instruments. Displays and sets the bar graph low value i.e. the value on the 7 segment display at which the bargraph will start to rise. This may be independently set anywhere within the display range of the instrument. Note: The bar~ and bar_ settings are referenced from the 7 segment display readings, not the bargraph scale values. The bargraph scale may scaled differently to the 7 segment display, as shown on the right where bargraph scale is 0 to 100 yet the display is showing 475.3. In this example the bargraph scale may be indicating a percentage whilst the 7 segment display is indicating actual temperature. Bargraph display high value - seen only in bargraph display instruments. Displays and sets the bar graph high value i.e. the value on the 7 segment display at which the bargraph will reach its maximum indication (all LED s illuminated). May be independently set anywhere within the display range of the instrument. Bar graph display operation mode - seen only in bargraph display instruments. Allows selection of bargraph operation mode choices are: bar - conventional solid bargraph display i.e. all LED s illuminated when at full scale. When scaling the display use the bar_ and bar~ functions e.g. bar_ = 0 and bar~ = 100 will give a bargraph with no segments lit at a 7 segment display reading of 0 and all segments lit with a 7 segment display reading of 100. S.dot - single dot display. A single segment will be lit to indicate the input readings position on the scale. When scaling the display use the bar_ and bar~ functions e.g. bar_ = 0 and bar~ = 100 will give a bargraph with the bottom segment lit at a 7 segment display reading of 0 and the top segment lit with a 7 segment display reading of 100. Note: this could also be set up as a centre zero single dot display by entering a negative value and positive value. e.g. bar_ = -100, bar~ = 100. d.dot - double dot display. Two segments will be lit to indicate the input reading position on the scale. The reading should be taken from the middle of the two segments. When scaling the display use the bar_ and bar~ functions e.g. bar_ = 0 and bar~ = 100 will give a bargraph with the bottom two segments lit at a 7 segment display reading of 0 and the top two segments lit with a 7 segment display reading of 100. Note: this could also be set up as a centre zero single dot display by entering a negative value and positive value. e.g. bar_ = -100, bar~ = 100. C.bAr - centre bar display. The display will be a solid bargraph but will have its zero point in the middle of the display. If the seven segment display value is positive the bargraph will rise. If the seven segment display value is negative then the bargraph will fall. When scaling the display use the bar_ and bar~ functions e.g. bar_ = 0 and bar~ = 100 will give a bargraph with all the bottom half segments lit at a 7 segment display reading of -100 and all the top segments lit with a 7 segment display reading of 100. drnd Display rounding - dis plays and sets the dis play round ing value. This value may be set to 0-5000 dis played units. Dis play round ing is use ful for re duc ing the in stru ment res o lu tion with out loss of ac cu racy, in ap pli ca tions where it is un de sir able to dis play to a fine tol er ance. (ex am ple if set to 10 the in stru ment will dis play in mul ti ples of 10). dcpt FLtr Decimal point selection - displays and sets the decimal point. By pressing the ^ or v pushbuttons the decimal point position may be set. The display will indicate as follows: 0 (no decimal point), 0.1 (1 decimal place) or 0.02 (2 decimal places). Digital filter - displays and sets the digital filter value. Digital filtering is used for reducing susceptibility to short term interference. The digital filter range is selec from 0 to 8, where 0 = none and 8 = most filtering. A typical value for the digital filter would be 3. Page 11 of 34

Func tion CaL Ofst INPt type deg type dg.op dg.op bcd Strt dig_ Description Calibration offset - used to place an offset on the display reading. Enter the positive or negative value to be used for offset at this function using the ^ or v pushbutton. For example if the value 15 is entered at this function the the temperature reading will be 15 degrees higher than the calibrated value across the whole temperature range e.g a reading of 0 degrees will now be displayed as 15 degrees and a previous reading of 100 degrees will now be displayed as 115 degrees. The calibration offset can be used with any input type. The offset value entered does not affect the calibration procedure (i.e. during calibration the offset is not added or subtracted from the temperature viewed) but the offset value will be added or subtracted from the calibrated values once calibration is complete. Input type - the input type is selected at this function. The input types available are: 100-100Ω RTD (Pt100) temperature sensor 1000-1000Ω RTD (Pt1000) temperature sensor t1 b - type B thermocouple t2 E - type E thermocouple t3 J - type J thermocouple t4 - type K thermocouple (no letter is shown since K cannot be produced on display) t5 n - type N thermocouple t6 r - type R thermocouple t7 S - type S thermocouple t8 t - type T thermocouple E20 - ±20mV input E50 - ±50mV input E75 - ±75mV input (note this input range will allow approx ±98mV input) E200 - ±200mV input 4-20 - 4-20mA input Display units o C or o F or absolute - dis plays and sets the dis play tem per a ture units. Se lect `C or `F or AbS (degrees Kelvin). Digital output operating mode - seen only with digital output option. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Select from bin2 - signed binary output, bin - unsigned binary output, b.scl - scaled binary output, bcd - BCD output. Output polarity - seen only with digital output option. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Select either A Io - active low output or A Hi - active high output. BCD - start display position - seen only with digital output option. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. This function affects BCD mode only and determines the number of digits to skip when outputting from the display. Select from 0 to number of display digits minus 4. e.g. for a 6 digit display you may select 0 to 2, if 2 is selected then the four left most digits will be output. Scaled digital output low reading - seen only with digital output option. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Accepts any valid display value. Determines the low scaling point for the b.scl mode and has no effect on other modes. Page 12 of 34

Func tion dig~ disp unit REC ctri CAL deg CAL1, CAL2 etc. USEr En4 & USEr EN20 UCAL P.but Description Scaled digital output high reading - seen only with digital output option. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Accepts any valid display value. Determines the high scaling point for the b.scl mode and has no effect on other modes. For example if dig_ is set to 0 and dig~ is set to 65535 (2 16 ) then the retransmission will not be scaled i.e. a display of 2 will cause a retransmission of 2. If dig~ is now changed to 32767 (2 15 ) then a display of 2 will cause a retransmission of 4. Display unit - allows selection of NONE (no units appear on the display), `C (e.g. 21.0"C display) or `F (e.g. 53"F display), " (e.g. 23.4"), C e.g. (59.7C) or F (e.g. 125.2F). Analog output mode - seen only when analog output option is fitted. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. This function allows selection of on or OFF for PI control output. If set to OFF the analog output operates as a retransmission output and uses the functions described in this chapter. If set to on the analog output operates as a PI control output. When the dual analog output option is fitted only the first analog output is configurable for PI control. Temperature calibration - temperature calibration for RTD or thermocouple input - see Calibration chapter. mv or 4-20mA live input calibration - calibration method for mv or 4-20mA input - see Calibration chapter. 4-20mA scaling - 4-20mA scaling method without live inputs - see Calibration chapter. Uncalibration - used to set the instrument back to the factory calibration values. This function is only used when calibration problems exist and the calibration memory needs to be cleared, other settings are not affected. To uncalibrate press the ^ and v buttons simultaneously, the display will show CAL CLr to indicate that the uncalibration is complete. P button function - ap pli ca ble only in mod els with front panel P buttons. The P but ton may be set to op er ate some of the re mote in put func tions, see R.INP be low for a de scrip tion of these func tions. The P but ton is lo cated at the front of 5 or 6 digit LED mod els. If both the re mote in put and P but ton func tion are op er ated si mul ta neously the P but ton will over ride the re mote in put. The func tions be low are as de scribed in the R.INP func tion above with the ex cep tion of the P.SEt func tion. Functions available are: NONE, Hi, Lo, HiLo or A.cIr Page 13 of 34

Func tion R.INP Description Remote input function - pins 7 and 8 at the rear of the instrument are the remote input pins. When these pins are short circuited, via a pushbutton or keyswitch the instrument will perform the selected remote input function. A message will flash to indicate which function has been selected when the remote input pins are short circuited. The remote input functions are as follows: NONE - no remote function required. P.HLd - peak hold. The display will show the peak value only whilst the remote input pins are short circuited. d.hld - display hold. The display value will be held whilst the remote input pins are short circuited. Hi - peak memory. The peak value stored in memory will be displayed if the remote input pins are short circuited, if the short circuit is momentary then the display will return to normal measurement after 20 seconds. If the short circuit is held for 1 to 2 seconds or the power is removed from the instrument then the memory will be reset. Lo - valley memory. The minimum value stored in memory will be displayed. Otherwise operates in the same manner as the Hi function. HiLo - toggle between Hi and Lo displays. This function allows the remote input to be used to toggle between peak and valley memory displays. The first operation of the remote input will cause the peak memory value to be displayed, the next operation will give a valley memory display. P Hi or P Lo will flash before each display to give an indication of display type. SP.Ac - setpoint access only. This blocks access to any functions except the alarm setpoint functions unless the remote input pins are short circuited or entry is made via CAL mode. No.Ac - no access. This blocks access to all functions unless the remote input pins are short circuited or entry is made via CAL mode. CAL.S - calibration select. Two sets of certain setup values can be entered in, one set with the remote input open circuit and another set with the remote input short circuit to ground. The remote input can then be used to switch between one set and the other. This feature provides a simple switch change-over to allow toggling between displays with different function settings for degree type display o C or o F (deg type), decimal point place (dcpt), display rounding (drnd) or display units (disp) the calibration scaling can also be switched i.e. different CAL deg scale settings can be used. Note: other functions such as the alarm and retransmission settings cannot be changed between the two selections but will function for whichever selection is displayed at the time. dull - display brightness control. The remote input can be used to change the display brightness. When this mode is selected the display brightness can be switched, via the remote input, between the brightness level set at the brgt function and the brightness level set at the dull function. A.cIr - clear latching alarm. This selection is used as the remote input to clear latched alarm relays. If an alarm relay has been set to latch at the Ax Ltch function then either the R.INP or P.but function must be set to A.cIr to clear the latching function. The remote input or P button must be activated for approx. 3 seconds to clear the alarm. If a latched relay is in alarm condition and latched and the A.cIr function is used the relay will reset when the display value moves outside the alarm condition i.e. the relay will not reset immediately if its display is still showing an alarm condition but will reset automatically when its display value puts it out or alarm condition. If more than one relay is latched then the A.cIr function will clear all relays. Latched relays will also be cleared if power is removed from the display. Page 14 of 34

Func tion ACCS SPAC Description Access mode - the access mode function ACCS has four possible settings namely OFF, EASY, NONE and ALL. If set to OFF the mode function has no effect on alarm relay operation. If set to EASY the easy alarm access mode will be activated, see details prior to the AxLo function described earlier in this chapter. If set to NONE there will be no access to any functions via FUNC mode, entry via CAL mode must be made to gain access to alarm and calibration functions. If set to ALL then access to all functions, including calibration functions, can be gained via FUNC mode. Setpoint access - seen only if more than 1 re lay fit ted. Sets the ac cess to the alarm re lay set points. The fol low ing choices are avail able: A1 - Al lows setpoint ac cess to alarm 1 only. A1-2 - Al lows ac cess to alarms 1 and 2 only. A1-3 allows access to alarms 1,2 and 3 etc. up to the maximum number of relays fitted. The remote input function (R.INP) must be set to SP.AC for this function to operate. Note: Only the setpoints which have been given a value will be accessible e.g. if A1Hi is set to OFF then there will be no access to the A1Hi function when SPAC is used. A1, A2 etc Alarm relay operation mode for relays 1, 2 etc. - the following choices are available for alarm operation mode: LiuE - live input mode. The alarm relay operation will always follow the electrical input at that time irrespective of the 7 segment display value. e.g. assume the remote input is set to phld and A1Lo is set to 100. The display may be indicating a peak reading of 500 but if the electrical input changes to correspond with a normal display value of 100 or less then the alarm will operate. This will be the normal setting used unless one of the special modes which follow is required. P.HLd - peak hold mode. If the peak hold mode is used and the remote input is set to peak hold then once the peak display goes above any alarm high setpoint the alarm relay will activate and will not de-activate until the peak hold is released and the display value falls below the setpoint value. d.hld - display hold mode. If the display hold mode is used and the remote input is set to display hold then the alarm relay will be held in its present state (activated or de-activated) until the display hold is released and the display is free to change. Hi - peak (max.) memory mode. If the peak memory mode is used and the remote input is set to peak memory then the alarm will be activated if the peak memory value is above the high setpoint value. The alarm will not de-activate until the memory is reset. Lo - valley (min.) memory mode. If the valley memory mode is used and the remote input is set to valley memory then the alarm relay will be activated if the valley memory value is below the low setpoint value. The alarm will not de-activate until the memory is reset. disp - display mode. If the display mode is used then the alarms will operate purely on the display value at the time i.e. if the display is showing above high setpoint or below the low setpoint value then the alarm relay will activate. For example if the remote input were set to peak memory and A1 were set to live display mode then, unless the display is actually showing the peak memory value (i.e. the remote input has just been activated), the alarm relay is free to operate from the changing display value i.e. the memory does not have to be reset to clear an alarm condition. Page 15 of 34

Func tion bar REC, REC2 and d.gop Description Bargraph operation mode - applicable only to bargraph displays. The following choices are available for bargraph operation mode: LiuE - live input mode. The bargraph will respond to the electrical input only and will not necessarily follow the 7 segment display value. For example if the remote input is set for peak hold operation then when the remote input is closed the 7 segment display will only show the peak value but the bargraph will be free to move up and down to follow the electrical input. This will be the normal setting used unless one of the special modes which follow is required. P.HLd - peak hold mode. The bargraph (and 7 segment display) will indicate the peak value only whilst the peak value function is operated via a contact closure on the remote input i.e. the bargraph & 7 segment display can rise but not fall whilst the remote input switch is closed. When the remote input switch is opened the bargraph value will remain fixed i.e. it will not rise or fall, although the 7 segment display value will be free to alter. This peak bargraph reading can be cleared by closing the remote input switch for another operation or by removing power from the instrument. Note: In this mode the bargraph will show a zero reading until the remote input is operated for the first time after switch on. d.hld - display hold mode. The bargraph (and 7 segment display) value will be held whilst the remote input display hold switch is closed. When the switch is opened the bargraph value will remain fixed at the held value although the 7 segment display value will be free to alter. The held bargraph reading can be cleared by closing the remote input switch for another operation or by removing power from the instrument. Note: In this mode the bargraph will show a zero reading until the remote input is operated for the first time after switch on. Hi - peak (max.) memory mode. With the peak remote input switch open the bargraph will indicate the peak value in memory i.e. the bargraph can rise but not fall. The bargraph can be reset by clearing the memory. The memory may be cleared either by closing the remote input switch for approximately 2 seconds or by removing power. Lo - valley (min.) memory mode. With the valley remote input switch open the bargraph will indicate the valley (min.) value in memory i.e. the bargraph can fall but not rise. The bargraph can be reset by clearing the memory. The memory may be cleared either by closing the remote input switch for approximately 2 seconds or by removing power. disp - display mode. The bargraph display will follow whatever value is on the 7 segment display. For example if the remote input set to display hold then the bargraph will also be held whilst the 7 segment display value is held. REC, REC 2 (Analog retransmission operation mode) and d.gop (digital output retransmission). Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. The following commands only apply if the option is fitted to the instrument. REC2 is seen only when dual analog output is fitted. The following choices are available for analog or digital retransmission operation mode: LiuE - live input mode. The retransmission will follow the electrical input and will not necessarily follow the 7 segment or bargraph display. For example if the remote input is set for peak hold operation then when the remote input is closed the 7 segment display will only show the peak value but the retransmission will be free to change to follow the electrical input. This will be the normal setting used unless one of the special modes which follow is required. P.HLd - peak hold mode. The 7 segment display and retransmission value will indicate the peak value only whilst the peak value function is operated via a contact closure on the remote input i.e. the 7 segment display and retransmission can rise but not fall whilst the remote input switch is closed. When the remote input switch is opened the retransmission value will remain fixed i.e. it will not rise or fall, although the 7 segment display value will be free to alter. This peak retransmission output can be cleared by closing the remote input switch for another operation or by removing power from the instrument. Note: In this mode the retransmission will show a zero reading until the remote input is operated for the first time after switch on. Hi - peak (max.) memory mode. With the peak remote input switch open the retransmission will indicate the peak value in memory i.e. the retransmission output can rise but not fall. The retransmission output can be reset by clearing the memory. The memory may be cleared either by closing the remote input switch for approximately 2 seconds or by removing power to the instrument. Page 16 of 34

Func tion REC and d.gop con tin ued baud Prty O.Put Addr Description Lo - valley (min.) memory mode. With the valley remote input switch open the retransmission will indicate the valley (min.) value in memory i.e. the retransmission output can fall but not rise. The retransmission output can be reset by clearing the memory. The memory may be cleared either by closing the remote input switch for approximately 2 seconds or by removing power to the instrument. disp - display mode. The retransmission output will follow whatever value is on the 7 segment display at the time. Set baud rate - Select from 300, 600, 1200, 2400, 4800, 9600, 19.2 or 38.4. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Set parity - select parity check to either NONE, EUEN or odd Set RS232/485 interface mode - Select disp, Cont, POLL or A.buS Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. Allows user to select the RS232/485 interface operation as follows:- disp Sends image data from the display without conversion to ASCII. Cont Sends ASCII form of display data every time display is updated. POLL Controlled by computer or PLC as host. Host sends ASCII command via RS232/485 and instrument responds as required. A.buS is used when communicating with the optional Windows compatible download software. M.buS - Modbus RTU functions 1 & 3 Set unit address (0 to 31) for polled (POLLor M.bus) mode - allows several units to operate on the same RS485 interface reporting on different areas etc. The host computer or PLC may poll each unit in turn supplying the appropriate address. Refer to the separate PM4 Panel Meter Optional Output Addendum booklet supplied when this option is fitted. The unit address ranges from 0 to 31 (DEC) but is offset by 32 (DEC) to avoid clashing with ASCII special function characters (such as <STX> and <CR>). Therefore 32 (DEC) or 20 (HEX) is address 0, 42 (DEC) or 2A (HEX) addresses unit 10. Note: Address 0 cannot be used with Modbus protocol. Returning to normal measure mode When the calibration has been completed it is advisable to return the instrument to the normal mode (where calibration functions cannot be tampered with).to return to normal mode, turn off power to the instrument, wait a few seconds and then restore power. Page 17 of 34

4.1 Er ror Mes sages "----" - This display indicates that the input signal is higher than expected for the selected input range or for RTD inputs that the input is open circuit e.g. broken sensor wire. The "----" display will cause any relay with a high setpoint vale set to activate. "OPEN" - This display indicates an open circuit thermocouple input. The "OPEN" display will cause any relay with a high setpoint value set to activate. "-or-" - This display indicates an overrange reading. This means that the instrument is not being able to display the number because it is too large e.g. above 99999 on a 5 digit display. Check that the calibration scaling figures are correct. CAL SPAN Err - this display indicates a calibration span error caused by the input signal being too low the case of thermocouple inputs or too close to another calibration point input in the case of mv inputs. Check that the input is correct and that the correct sensor type has been chosen at the INPt type function. If correct perform a UCAL function operation to reset the calibration memory then try calibration scaling again. CAL OFSt Err - this display indicates a calibration offset error caused by the input being too far away from the theoretical value for the input. For example the PM4 instrument expects the resistance of a 100Ω RTD input to be 138.5Ω at 100 degrees. If during calibration the user places an input which is more than 20% away from 138.5Ω and tries to scale the meter to read 100 degrees the offset error message will be seen and the instrument will not accept the scaling. CoId or INPt - these are not error messages but indicate that the ^ or v button has been used to view the thermocouple cold junction temperature or the mv input level. To revert to temperature measurement, press the ^ or v again. bd1 or bd2 - may be seen temporarily if the input type is changed. e.g. If display was showing thermocouple cold junction and then the input was changed to type which does not have a cold junctin the message may be seen. This message will be removed permanently for the new input type if the display is toggled using the ^ or v button. Temperature reading consistenty high or low - check calibration and also check the CAL OFSt function to ensure that any offset value is taken into account. Page 18 of 34

5 Func tion Ta ble for fully optioned in stru ment Ini tial dis play Mean ing of dis play Next dis play De fault set ting C.Set Analog PI control setpoint Value in memory 0 Ax.SP Relay PI control setpoint Value in memory 0 AxLo AxHi AxHy Axtt Axrt Axn.o or Axn.c Ax Ltch Ax.SP or Ax.t1 brgt dull Alarm x low setpoint value Alarm x high setpoint value Alarm x hysteresis Alarm x trip time Alarm x reset time Alarm x action N/O or N/C Latching alarm relay operation Alarm x independent or trailing setpoint 1,2 etc. Digital display brightness Remote brightness control Setpoint value or OFF OFF Setpoint value or OFF 1000 Hysteresis value in measured units No of seconds/tenths before relay x trips No of seconds/tenths before relay x resets Axn.o or Axn.c on or OFF Ax.SP or Ax.t1 1 to 15 (15 = highest brightness) 0 to 15 (15 = highest brightness) rec_ Analog output low limit Value in memory 0 10 0.0 0.0 Axn.o Ax.SP rec~ Analog output high limit Value in memory 100 rec_ ch2 rec~ ch2 Second analog output low limit Second analog output high limit 15 Value in memory 0 Value in memory 100 Functions below are accessible via CAL mode only Ax OPER Alarm x operation mode Ax.AL, Ax.tP or Ax.Fr Ax.AL 1 Re cord your settings bar_ Bargraph low reading Value in memory 0 bar~ Bargraph high reading Value in memory 1000 bar type Bargraph operation mode bar, S.dot, d.dot or C.bAr bar DGOP Digital output mode bcd, b.scl, bin or bin2 bin2 dg.op bcd Strt dig_ dig~ Digital retransmission output polarity BCD retransmission start value Scaled digital output low reading Scaled digital output high reading A Lo or A Hi A Lo Value in memory 0 Value in memory 0 Value in memory 1000 Page 19 of 34

P I C o n t r o l P I C o n t r o l ctri SPAN Ax.PG Ax.IG Ax.IL Ax.IH Span for relay PI control Value in memory 100 Proportional gain for relay PI control Integral gain for relay PI control Low integral limit for relay PI control High integral limit for relay PI control -19.999 to 32.767 1.000-19.999 to 32.767 0.000 0.0 to 100.0 100.0 0.0 to 100.0 100.0 Ax.bS Bias for relay PI control 0.0 to 100.0 50.0 Ax.dc Ax.dr drnd dcpt Duty cycle for relay PI control Duration for relay PI control (frequency mode only) Display rounding selects resolution Display decimal point 0 to 250 10 0.0 to 25.0 1.0 Value in memory 1 Decimal Pt position (e.g. 0.1 or 0.02) FLtr Digital filter range 0 to 8 0 to 8 (8 = most filtering) 2 CAL OFSt Calibration Offset -1999 to 9999 0 REC ctri Analog PI control on or off on or OFF 0 OFF C.SPN Analog PI control span Value in memory 100 C. PG C. PO C. IG CIL.H CIL.L REC SPAC INPt type deg type disp unit Analog PI control proportional gain Analog PI control proportional offset Analog PI control integral gain Analog PI control integral limit high Analog PI control integral limit low Analog PI control setpoint access on or off Temperature sensor/input type Degrees C or F measurement Units to appear on display -19.999 to 32.767 1.000 0 to 100 0.0-19.999 to 32.767 0.000 0 to 100 100.0 0 to 100 100.0 on or OFF 100, 1000, t1 b, t2 E, t3j, t4, t5 n, t6 r, t7 S, t8 t, E 20, E 50, E 75, E200 or 4-20 OFF 100 C, F or AbS C NONE, C, "F,, C or F NONE CAL deg Temperature calibration See calibration chapter n/a Lin Pts CAL1, CAL2 etc. USER en4 USER En20 Lineariser points for mv or 4-20mA input mv input calibration points 4mA scaling point without live input 20mA scaling point without live input 2, 3, 4 or 5 2 See calibration chapter n/a See calibration chapter 0 See calibration chapter 1000 UCAL Uncalibrate CAL CLr n/a Page 20 of 34