Liquid Level Sensor AKS 4100U
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- Clifton Ramsey
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1 MAKING MODERN LIVING POSSIBLE Technical brochure Liquid Level Sensor U U - Cable Version U - Coaxial Version The U liquid level sensor is designed specifically to measure liquid levels in a wide range of refrigeration applications. The U liquid level sensor is based on a proven techhology called Time Domain Reflectometry (TDR) or Guided Micro Wave. U liquid level sensor can be used to measure the liquid level of many different refrigerants in vessels, accumulators, receivers, standpipes, etc. The electrical output is a 2-wired, loop powered 4-20 ma output signal, which is proportional to the refrigerant liquid level. U in a cable version is suitable for HCFC, Non flammable HFC and R717 (Ammonia), and differing lengths from 800 mm(31.5 in.) and up to 5000 mm (197 in.). The coaxial version of /4100U is designed for use with R744 (CO 2 ), HCFC, Non flammable HFC and R717 (Ammonia). The U coaxial version should always be used for marine applications for all refrigerant types. The U cable version should NOT be used for CO 2 or marine applications. Dust, foam, vapour, agitated surfaces, boiling surfaces, changes in density or in the dielectric constant, εr, for the liquid have no influence on the U performance. Oil accumulated in the bottom of a standpipe will not disturb the liquid level signal and it is not necessary to remove U for cleaning after oil has been drained out of the standpipe. Features y Approved and qualified by Danfoss for refrigeration applications y One product covering several probe lengths (cable version) y A single product for all commonly used refrigerants (cable version) y Cable version requires less top-end clearance for installation and service y Proven operation with all refrigerants in combination with oil. y No need to clean cable version when fully covered by oil. y The cable version is very compact and easy to handle, ship, install and use with different lengths and refrigerants y Changes of the liquid dielectric constant (εr) do not affect operation. y 5000 mm (197 in.) probe length with cable version y 2-wire loop powered; no separate transformer needed. Please Note: U can be connected directly to Danfoss EKE 347 liquid level controller and thus be powered from EKE 347. If used together with Danfoss EKC 347 liquid level controller, a V d.c supply is required. y Multi language HMI. Level and setting readout in mm,cm,m (ft, in.) Language HMI versions: - English (default), German, French, Spanish - English (default), Japanese, Chinese Russian For further details regarding mechanical and electrical installation please refer to the product installation guides PI.SC0.D (CABLE version) and PI.SC0.E (COAXIAL version). Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H5916 1
2 Liquid Level Sensor, U Contents Page Features... 1 Product concept: CABLE version:... 3 COAXIAL version:... 4 Optional HMI... 4 Measuring principle... 5 Main technical data... 5 Measuring range of U - CABLE version Measuring range of U - COAXIAL version... 7 Ordering U... 8 Dimensions and weights...9 Technical data...10 Quick setup: CABLE version...12 COAXIAL version...13 Forcing ma output...15 Entering refrigerant dielectric gas constant Saturated vapour dielectric constant How to change the language setting (Default: English) Reset to factory setting DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
3 Liquid Level Sensor, U Product concept U is available in two different versions: y Cable version y Coaxial version Both Cable and Coaxial versions are available with mechanical process connection: y U: ¾ in. NPT CABLE version: COAXIAL D14 version: Danfoss M84H0021_1 Danfoss M84H0001_1 Cable version Cable version The cable version consists of: Signal converter, which can be supplied with or without HMI Mechanical process connection with 5 m (197 in.) ø2 mm (0.08 in.) stainless cable Counterweight Accessory bag comprising: 3 mm set screws Red cover to protect mechanical process connection prior to mounting signal converter. Setting label. U cable version must ALWAYS be installed in a standpipe. With the cable version it is possible to adapt the U to any possible length in the range of 800 mm (31.5 in.) to 5000 mm (196.9 in.) Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H5916 3
4 Liquid Level Sensor, U Coaxial version Coaxial version The Coaxial version consists of: Signal Converter (with or without HMI) Mechanical process connection with 5 m (197 in.) Ø2 mm (0.08 in.) stainless wire Tube(s) depending on required length Accessory bag comprising: End Connector (incl. 3 mm (0.12 in.) set screws.) 3 mm (0.12 in.) set crews (1 set screw pr. tube) Red cover to protect mechanical process connection, before Signal Converter is mounted. Setting label. The coaxial version is available in the following probe lengths: y U, 19.2 in. y U, 30 in. y U, 45 in. y U, 55 in. y U, 65 in. y U, 85 in. U, Coaxial can be installed in a standpipe (a) or directly in a vessel (b). a b Optional HMI The optional HMI Service/Display unit is used for commissioning and quick on-site setup and is easily mounted on the U. The service unit supports mulitple languages in both SI and US units. Supported standard languages: English (default), German, French, Spanish, Japanese, Chinese and Russian. * 4-20 ma output displayed as bar graph and in percentage [%] Measurement name (in this example, DISTANCE) Device tag name Measurement reading and unit Device status (markers) Marker 1, 2 and 3 (Error) Hardware problem; the Signal Converter hardware is defective. Contact Danfoss. Marker 4 and 5 (Notification) Depending on the level, the marker is ON or OFF. Used for Danfoss service information only. Keypad buttons Flashing star indicating unit in operation. Enter menu system Enter QUICK SETUP Unit change at distance/level readout: m, cm, mm, in, ft Change between: Distance* Level** Output (%)*** Output (ma)**** * DISTANCE is a display option. If the display is set to DISTANCE the displayed value will be the distance from the Reference point to the top surface of the liquid refrigerant (see pages 6 and 7). ** LEVEL is display option. If the display is set to LEVEL then the value displayed will be: PROBE LENGTH (entered in QUICK SETUP) DISTANCE (see pages 6 and 7) *** OUTPUT (%) is display option. Will represent the level of refrigerant,in percent, scaled (entered in QUICK SETUP) according to: SCALE 4 ma (0%), SCALE 20 ma (100%) (see pages 6 and 7). **** OUTPUT I (ma) is display option. Will represent the level of refrigerant, in 4-20 milliampere, scaled (entered in QUICK SETUP) according to: SCALE 4 ma (4 ma), SCALE 20 ma (20 ma) (see pages 6 and 7). 4 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
5 Liquid Level Sensor, U Measuring principle (Cable and Coaxial) 1. The electromagnetic (EM) pulse is transmitted by the signal converter 2. The pulse goes down the probe at the speed of light in air, V1 3. The pulse is reflected 4. The pulse goes up the probe at speed, V1 5. The converter receives the pulse and records the signal 6. The EM pulse moves at speed, V1 7. Transmitted EM pulse 8. Half of this time is equivalent to the distance from the reference point of the device (the flange facing) to the surface of the product 9. Received EM pulse Main technical data (see a complete list of all technical data on page 11) The U electronic converter emits lowintensity, high frequency electromagnetic pulses with a width of approximately 1 nanosecond, which travel at the speed of light along the probe (wire or coaxial cable) down to the liquid surface. The pulses are reflected by the liquid surface, guided back along the probe, and received and analysed by the U electronic converter and then converted into a liquid level reading. This method is called time domain reflectometry (TDR) or guided microwave. The dielectric constant, εr, of the liquid is a key parameter and has a direct impact on the degree of reflection of the high frequency electromagnetic pulses. Liquids with high εr values, such as ammonia, produce strong reflections, while liquids with low εr values, such as CO 2, produce weak reflections. As long as the εr value of the liquid refrigerant is Supply Voltage V d.c. Min/Max. Value for an output of 22 ma at the terminal. Ambient temperature supply voltage limitations: -40 C/+80 C( 40 F / +176 F) : V d.c. -20 C/+80 C( 4 F / +176 F) : V d.c. Load RL [Ω] ((Uext -14 V)/20 ma). Default (Error output set to 3.6 ma) RL [Ω] ((Uext -14 V)/22 ma). (Error output set to 22 ma) Cable gland PG 13, M ; (cable diameter: 6-8 mm ( in.) U ½ in. NPT Refrigerant temperature 60 C/100 C ( 76 F/212 F) Ambient temperature 40 C / +80 C ( 40 F / +176 F) For HMI : 20 C / +60 C ( 4 F / +140 F) Process pressure 1 barg / 100 barg ( 14.5 psig / 1450 psig) Terminals (spring loaded) mm² (~20-15 AWG) Enclosure: IP 66/67 (~NEMA type 4X) higher than 1.2, U can detect the liquid level and level measurement accuracy is not affected. If the temperature condition in the standpipe/ vessel is known, a constant (dielectric constant of the refrigerant gas) can be entered (parameter GAS EPS.R), in order to obtain improved Top and Bottom Dead Zone values. Refer to pages 7 to 8 for Measuring range of AKS 4100U - CABLE version and COAXIAL version. For details of gas constant values for different temperatures and refrigerants plus the procedure for entering these via the HMI, refer to pages 13 to 16. Mechanical connection Cable version/coaxial version: U: ¾ in. NPT Refrigerants The listed refrigerants are qualified and approved by Danfoss R717 / NH 3 40 C / +50 C ( 40 F / +122 F) R744 / CO 2 50 C / +15 C ( 58 F / +59 F) HCFC: R22 50 C / +48 C ( 58 F / +118 F) HFC: R404A 50 C/ +15 C ( 58 F / +59 F) R410A 50 C /+15 C ( 58 F / +59 F) R134A 40 C /+50 C ( 40 F /+122 F) The listed refrigerants may be used in the complete temperature range of U, however, the accuracy may be affected if the above listed temperature range is exceeded. Other refrigerants within the groups of HCFC and HFC can be detected and measured if the following conditions are fulfilled: Reference conditions Dielectric constant Cable version to be used in R717 / NH 3, HCFC and HFC εr, liquid > 5.6 The coaxial version is mandatory for R744 / CO 2 εr, liquid > 1.3 and marine applications. The coaxial version can also be used in R717 / NH 3, HCFC and HFC. Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H5916 5
6 Liquid Level Sensor, U Measuring range of U - CABLE version Bottom deadzone values based on the factory setting of dielectric constant Refrigerant Probe length range Bottom dead zone Ammonia, HFC, HCFC [mm] [in.] [mm] [in.] Improved Bottom dead zone values after the adjustment of dielectric constant Refrigerant Probe length range Bottom dead zone Ammonia, HFC, HCFC [mm] [in.] [mm] [in.] Top dead zones 120 mm (4.7 in.) Measuring range Standpipe diameter: 2-4 in. Reference point Probe length* 20 ma (100 %)* Surface level Distance 4 ma (0 %)* Inner length of the standpipe Bottom dead zone (see tables) Counterweight: 33 mm (1.3 in.) Min: 20 mm (0.8 in.) * Values to be entered into HMI Quick Setup menu and recorded on the setting label. Stick the setting label onto the Signal Converter either inside or outside. Danfoss M84H0017_1 Steel wire insertion length: 12 mm (0.5 in.) 6 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
7 Liquid Level Sensor, U Measuring range of U - COAXIAL version Please note: It is mandatory to input dielectric constant for CO 2 applications. U Dielectric Constant εr always set during Quick Setup Refrigerant Probe Bottom Bottom Length Dead Dead Zone Zone [in.] [in.] [mm] CO Top dead zone 120 mm (4.7 in.) Reference point 20 ma (100 %)* Factory setting Refrigerant Ammonia Probe Bottom Bottom Length Dead Dead Zone Zone [in.] [in.] [mm] Improved Bottom dead zone values after the adjustment of dielectric constant Refrigerant Probe Bottom Bottom Length Dead Dead Zone Zone [in.] [in.] [mm] Ammonia Factory setting Refrigerant HCFC,HFC Probe Bottom Bottom Length Dead Dead Zone Zone [in.] [in.] [mm] Improved Bottom dead zone values after the adjustment of dielectric constant Refrigerant Probe Bottom Bottom Length Dead Dead Zone Zone [in.] [in.] [mm] HCFC,HFC Measuring range Bottom dead zone (see tables) Danfoss M84H0026_1 Probe length* Surface level Min: 30 mm (1.2 in.) Ø2 mm (0.08 in.) stainless wire Distance 4 ma (0 %)* * Values to be entered into HMI Quick Setup menu and recorded on the setting label. Stick the setting label onto the Signal Converter either inside or outside. Inner length of the stand pipe Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H5916 7
8 Liquid Level Sensor, U Ordering U * When ordering without HMI please observe: Each must always be programmed via the HMI display unit. Cable version - U Description U with 5 m (197 in.) Ø2 mm (Ø0.08 in.) stainless cable and counterweight Code number with HMI English (default) German French Spanish Code number with HMI English (default) Japanese Chinese Russian Code number without HMI 084H H H4520 The HMI display unit can be ordered separately 084H4540 / 084H4590 /4100U HMI display unit with rear cover and mounting bracket. The mounting bracket is very useful when the U have to be programmed. The same U HMI display unit can be used to programme more /4100U and both Cable and Coaxial versions. 084H4548 / 084H4598 U HMI display unit (usually spare part). Coaxial version - /4100U (available in predefined lengths, with or without HMI) Accessories Description Probe length Code number mm in. with HMI English (default) German French Spanish Code number with HMI English (default) Japanese Chinese Russian Code number Without HMI* U - Coaxial H H H4524 U - Coaxial H H H4525 U - Coaxial H H H4526 U - Coaxial H H H4527 U - Coaxial H H H4528 U - Coaxial H H H4529 Description U HMI Service/Display unit with rear cover and mounting bracket Code number with HMI English (default) German French Spanish 084H4540 Code number with HMI English (default) Japanese Chinese Russian 084H4590 U HMI Display 084H H4598 Description U Signal Converter without HMI, excluding cable gland Code number 084H DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
9 Liquid Level Sensor, U Ordering /4100U Continued Service kits Description Content Code number Cable - 5 m (197 in.) Ø2 mm (Ø0.08 in.) Cable and counterweight for U - CABLE version Crimp Counterweight 084H4542 End connector incl screws for U - COAXIAL version End connector (incl. 3 mm (0.12 in) set screws) 084H4549 Process connection, counterweight and 5 m (197 in.) Ø2 mm (Ø0.08 in.) cable for U - CABLE and COAXIAL version 3/4in. NPT process connection Counterweight 084H4546 Other spare parts Description U Coaxial tube. Tube length : 680 mm (26.8 in.) U blank top cover for signal converter U Aluminium gaskets (10 pcs.) for 1in. process connection Code number 084H H H4547 Dimensions and weights CABLE version Ø104 mm (Ø4.1 in.) Ø2 mm Ø0.08 in. 33 mm 1.3 in. Ø22 mm Ø0.9 in. Ø92 mm Ø3.6 in mm (5.6 in.) 34.2 mm 1.4 in. Probe length Weight: approx. 2.0 kg (4.4 lbs) COAXIAL version Ø104 mm (Ø4,1 in.) Ø14 mm Ø0,6 in. Ø21 mm Ø0,8 in. 141,3 mm (5,6 in.) 34,2 mm 1,4 in. Lunghezza sonda Weight: approx. 3.5 kg (7.7 lbs) Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H5916 9
10 Liquid Level Sensor, U Technical data Measuring system Measuring principle 2-wire loop-powered level transmitter; Time Domain Reflectometry (TDR ) Application range Level measurement of liquid refrigerants. Approved refrigerants: Primary measured value Secondary measured value Halogen Free / Environmently friendly: R717 / NH 3, R744 / CO 2 HCFC and non flammable HFC. Time between the emitted and received signal Distance or level Design Options Max. measuring range Probe types Cable Mechanical process connection with 5 m (197 in.) Ø2 mm (0.08 in.) stainless cable: Mechanical thread on the mechanical process connection : G1 in. pipe thread. Aluminium gasket included U: ¾ in. NPT Coaxial Mechanical process connection with 5 m (197 in.) Ø2 mm (0.08 in.) stainless cable: Mechanical thread on the mechanical process connection : G1 in. pipe thread. Aluminium gasket included U: ¾ in. NPT Stainless steel tubes supporting the available probe length LCD display Coaxial : 500, 800, 1000, 1200, 1500, 1700 and 2200 mm U: 19.2, 30, 45, 55, 65, 85 in. Single cable Ø2 mm / 0.08 in.: mm ( in.) Dead zone This depends on the type of probe. (see pages 7 and 8) Display and User interface Display Interface languages Operating conditions : Ambient temperature Storage temperature Process connection temperature ure: Operating pressure Other conditions: Liquid dielectric constant (εr) Vibration resistance Protection category Integrated LCD display pixels in 8-step greyscale with 4-button keypad English (default), German, French, Spanish, Japanese, Chinese, Russian 40 C / +80 C ( 40 F / +175 F) For HMI : 20 C / +60 C ( 4 F / +140 F) C / F Standard 60 C/100 C ( 76 F/212 F) Standard: 1 barg / 100 barg ( 14.5 psig / 1450 psig) Cable version to be used in R717 / NH 3, HCFC and HFC εr, liquid > 5.6 Coaxial version is mandatory in R744 / CO 2 εr, liquid > 1.3 EN (1...9 Hz: 3 mm / Hz:1g; 10g shock half-wave sinusoidal: 11 ms) IP 66/67 equivalent to NEMA type 4X (housing) and type 6P (probe) Installation conditions Dimensions and weights See page 9 Material Housing Aluminium Coaxial (segmented) Standard: Stainless steel ( / 316L) Single cable Standard: Stainless steel ( / 316) Process fitting Standard: Stainless steel ( / 316L) Gaskets EPDM ( C / F) Cable gland Plastic (black) 10 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
11 Liquid Level Sensor, U Technical data (continued) Process connections Thread: Single cable Ø2 mm / 0.08 Coaxial Electrical connections Power supply Current output load Cable gland Cable entry capacity (terminal) : G1 inch pipe thread. Aluminium gasket included U: ¾ in. NPT : G1 inch pipe thread. Aluminium gasket included U: ¾ in. NPT Terminals output: V d.c. Min./Max. Value for an output of 22 ma at the terminal. Ambient temperature limitations: -40 C/+80 C( 40 F / +176 F) : V d.c. -20 C/+80 C( 4 F / +176 F) : V d.c. RL [Ω] ((Uext -14 V)/20 ma). Default (Error output set to 3.6 ma) RL [Ω] ((Uext -14 V)/22 ma). (Error output set to 22 ma) : PG 13, M ; (cable diameter: 6-8 mm ( in.) U: ½ in. NPT mm 2 (~20-15 AWG) Input and output Current output: Output signal 4 20 ma or ma acc. to NAMUR NE 43 Resolution drift Error signal Approvals and certification ±3 μa Typically 75 ppm/k High: 22 ma; Low: 3.6 ma acc. to NAMUR NE 43; Hold (frozen value - not available with NAMURNE 43 compliant output. This device fufills the statutory requirements of the EMC directives. The manufacturer certifies successful testing of the product by applying the CE mark. Pattern Approval Certificate of Measuring Instruments for the Russian Federation In compliance with EMC regulations in the Russian Federation Other standards and approvals: EMC Valid for - Not valid for U: LVD NAMUR EMC Directives 2004 / 108 / EC and 93 / 68 / EEC in conjunction with EN (2006) and EN (2006). The device conforms to these standards if : - the device has a coaxial probe or - the device has a single probe that is installed in a metallic tank. Low-Voltage Directives 2006 / 95 / EC and 93 / 68 / EEC in conjunction with EN (2001) NAMUR NE 21 Electromagnetic Compatibility (EMC) of Industrial Process and Laboratory Control Equipment NAMUR NE 43 Standardization of the Signal Level for the Failure Information of Digital Transmitters Minimum power supply voltage Use this graph to find the minimum power supply voltage for a given current output load: Current output load R L [Ω] Power supply U [VDC] Minimum power supply voltage for an output of 22mA at the terminal Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H
12 Liquid Level Sensor, U Note: The signal converter can be programmed with or without mechanical process connector assembled. Quick Setup (all values below are only examples) Connect the device to the power supply (see the section "Electrical installation/ connection". 3 times. SCALE 20 ma mm NO STORE NO or to select either STORE NO or STORE YES. QUICK SETUP? YES to change of SCALE 4 ma. to change the cursor position. to decrease the value or to Default screen appears: PROBE TYPE SINGLE CABLE or to select between SINGLE, COAXIAL D14 and COAXIAL D22. Choose SINGLE and press PROBE LENGTH mm to change of SCALE 20 ma. to change the cursor position. to decrease the value or to DISTANCE 5000 mm Quick Setup completed You have the possibility of checking your settings by pressing twice. QUICK SETUP COMPLETED IN 8 to change the PROBE LENGTH. to change the position of the cursor. to decrease the value or to Wait for QUICK SETUP to complete 8-second timeout AKS QUICK QUICKSTART SETUP? YES NO SINGLE CABLE (0%) 4 ma (100%) 20 ma 5000 mm 4877 mm 120 mm default screen. to return to SCALE 4 ma mm 12 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
13 Liquid Level Sensor, U Note: The signal converter can be programmed with or without mechanical process connector assembled. Quick Setup (all values below are only examples) When CO2 is used: Connect the device to the power supply (see the section "Electrical installation/ connection"). 3 times. to change the PROBE LENGTH. to change the position of the cursor. to decrease the value or to QUICK SETUP? YES NO PROBE TYPE SINGLE CABLE PROBE LENGTH mm QUICK SETUP COMPLETED IN 8 Wait for QUICK SETUP to complete. Count down from 8 sec. AKS QUICK QUICKSTART SETUP? YES mm LIQUID CO2? YES NO (YES) to confirm GAS EPS R? to change of SCALE 4 ma. to change the cursor position. to decrease the value or to SCALE 20 ma mm or to select between STORE NO or STORE YES. Default screen appears: DISTANCE 5000 mm Quick Setup completed to change GAS EPS.R. (Select the correct value from the tables on page 8) to change cursorposition. to decrease the value or to STORE NO SCALE 4 ma or to select between SINGLE, COAXIAL D14 and COAXIAL D22. Choose COAXIAL D14 and press NO to change of SCALE 20 ma. to change the cursor position. to decrease the value or to You have the possibility of checking your settings by pressing twice. COAXIAL D mm (0 %) 4 ma 1900 mm (100 %) 20 ma 70 mm default screen. Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H5916 to return to 13
14 Liquid Level Sensor, U For all other refrigerants: Connect the device to the power supply (see the section "Electrical installation/ connection"). 3 times. Wait for QUICK SETUP to complete. Count down from 8 sec. AKS QUICK START SETUP? mm NO YES PROBE TYPE SINGLE CABLE or to select between SINGLE, COAXIAL D14 and COAXIAL D22. Choose COAXIAL D14 and press to change of SCALE 4 ma. to change the cursor position. to decrease the value or to SCALE 20 ma mm LIQUID CO2? YES NO (NO) to confirm PROBE LENGTH mm 14 QUICK SETUP COMPLETED IN 8 SCALE 4 ma QUICK SETUP? YES to change the PROBE LENGTH. to change the position of the cursor. to decrease the value or to to change of SCALE 20 ma. to change the cursor position. to decrease the value or to DKRCI.PD.SC0.C7.22 / 520H5916 NO STORE NO or to select between STORE NO or STORE YES. Default screen appears: DISTANCE 5000 mm Quick Setup completed Danfoss A/S (MWA),
15 Liquid Level Sensor, U CABLE and COAXIAL version Forcing ma output (all values below are only examples) Default screen DISTANCE 5000 mm TESTS 4 times to return to default screen. Default screen appears: QUICK SETUP START SET OUTPUT DISTANCE 5000 mm Force ma completed and disabled SUPERVISOR SET OUTPUT 3.5 ma Enter password: to decrease the value or to SET OUTPUT 8 ma INFORMATION Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H
16 Liquid Level Sensor, U Optional Procedure If the temperature condition in the stand pipe is known, a constant (dielectric constant of the refrigerant gas) can be entered (parameter GAS EPS.R), in order to obtain lower Top and Bottom Dead Zone values (see pages 7 and 8). Entering refrigerant dielectric gas constant (all values below are only examples) Default screen DISTANCE 5000 mm 4 times APLICATION GAS EPS. R QUICK START SETUP TRACING VEL. 3 times STORE NO SUPERVISOR Enter password: INFORMATION 2 times GAS EPS. R to change GAS EPS.R. (Select the correct value from the tables on page 16) to change cursorposition. to decrease the value or to GAS EPS. R or to select between STORE NO or STORE YES. Select STORE YES by pressing Default screen appears: DISTANCE 5000 mm Entering the dielectric constant of refrigerant gas completed 16 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
17 Liquid Level Sensor, U R717 (NH 3 ) range: 60 C +50 C ( 76 F +122 F) [ C] [ F] Saturated vapour dielectric constant (default value: 1.066) Dielectric constant of refrigerant gas Parameter GAS EPS.R R22 range: 60 C +48 C ( 76 F +118 F) [ C] [ F] Dielectric constant of refrigerant gas Parameter GAS EPS.R R410A range: 65 C +15 C ( 85 F +59 F) [ C] [ F] Dielectric constant of refrigerant gas Parameter GAS EPS.R R507 range: 60 C +15 C ( 76 F +59 F) [ C] [ F] Dielectric constant of refrigerant gas Parameter GAS EPS.R R744 (CO 2 ) range: 56 C +15 C ( 69 F +59 F) [ C] [ F] Dielectric constant of refrigerant gas Parameter GAS EPS.R R134a range: 60 C +50 C ( 76 F +122 F) [ C] [ F] Dielectric constant of refrigerant gas Parameter GAS EPS.R R404A range: 60 C +15 C ( 76 F +59 F) [ C] [ F] Dielectric constant of refrigerant gas Parameter GAS EPS.R Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H
18 Liquid Level Sensor, U How to change the language setting (Default: English) Default screen DISTANCE 5000 mm QUICK SETUP START SUPERVISOR Go to SUPERVISOR menu (see page 14). Go to parameter Reset Factory. Select RESET FACTORY YES Enter password: LANGUAGE ENGLISH INFORMATION 6 times DISPLAY LANGUAGE Reset to factory setting or to see the language possibilities DISTANCE LANGUAGE 3 times STORE NO or to select between STORE NO or STORE YES. Select STORE YES by pressing Default screen appears: 5000 mm Language setup completed 3 times to return to default screen. Factory reset completed. 18 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
19 Liquid Level Sensor, U Danfoss A/S (MWA), DKRCI.PD.SC0.C7.22 / 520H
20 Liquid Level Sensor, U 20 DKRCI.PD.SC0.C7.22 / 520H5916 Danfoss A/S (MWA),
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