LMP 331 LMP 331. Screw-In Transmitter with piezoresistive Stainless Steel Sensor

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Megan Young
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LMP Screw-In Transmitter with piezoresistive Stainless Steel Sensor flush diaphragm hydrostatic level measurement of clean, thin fluid media nominal pressure ranges from 0... 40 mbar up to 0.

1 LMP Screw-In Transmitter with piezoresistive Stainless Steel Sensor flush diaphragm hydrostatic level measurement of clean, thin fluid media nominal pressure ranges from mbar up to bar ( mwc up to mwc) The screw-in transmitters LMP are suited for continuous level measurement of liquids in open tanks. They are used preferrably for level measurement in clean, thin fluid media. By the liquid column above the submersed transmitter a pressure is generated that is transmitted via a stainless steel diaphragm and inert oil filling onto the semiconductor sensor element. An amplifier circuit supplies the sensor and transforms the temperature compensated sensor output, which is proportional to the liquid level, into standard current and voltage output signals. The diaphragm is flush with a G/4 pressure port; an O-ring behind the thread provides sealing of the transmitter. A variety of standard output signals as well as mechanical and electrical connections make the LMP covering a wide field of applications. Additional it is possible to use the screw-in transmitter LMP in explosive area (zone 0). Preferred areas of use are: tank level measurement of neutral media water and sewage treatment plants Characteristics small thermal effect excellent linearity good long term stability option Ex-version (only for 4 0 ma / -wire) TÜV 0 ATEX 006 X accuracy: 0.75 / 0.5 / 0.05% FSO BFSL (0.5 / 0.5 / 0.% FSO IEC 60770) specific versions: - special pressure ranges LMP BD SENSORS GmbH BD-Sensors-Strasse Telefon +4 (0) 5 / D - 5 Thierstein Telefax +4 (0) 5 / 8 - info@bdsensors.de

2 LMP Input pressure range Nominal pressure gauge [bar] Level [mwc] Permissible overpressure [bar] Output signal / Supply Standard -wire: ma / V S =... 6 V DC Ex-protection: V S = V DC Optional -wire: ma / V S = V DC V / V S = V DC Performance Accuracy Permissible load standard: nominal pressure > 0.4 bar nominal pressure 0.4 bar option : nominal pressure > 0.4 bar option : nominal pressure 0.6 bar current -wire: R max = [(V S V S min ) / 0.0] Ω current -wire: R max = 500 Ω voltage -wire: R min = 0 kω IEC ± 0.5 % FSO ± 0.50 % FSO ± 0.5 % FSO ± 0.0 % FSO Influence effects Supply: 0.05 % FSO / 0 V Load: 0.05 % FSO / kω Long term stability Response time ± 0. % FSO / year < 5 msec. BFSL ± 0.75 % FSO ± 0.50 % FSO ± 0.5 % FSO ± % FSO Thermal errors (Offset and Span - standard) Nominal pressure gauge P N [bar] > Tolerance band [% FSO] ± ±.5 ± ± ± 0.75 TC, average [% FSO / 0 K] ± 0. ± 0. ± 0.4 ± 0. ± 0.07 in compensated range [ C] Thermal errors (Offset and Span - optional for C) Nominal pressure gauge P N [bar] >.0 Tolerance band [% FSO] ±.0 ±.5 ±.0 ± 0.75 TC, average [% FSO / 0 K] ± 0. ± 0. ± 0. ± 0.07 in compensated range [ C] Electrical protection Short-circuit protection Reverse polarity protection permanent no damage, but also no function Electromagnetic compatibility emission and immunity according to EN 66 Option Ex-protection only with ma / -wire DX-LMP zone 0 : II G EEx ia IIC T4 zone 0: II D T 85 C safety technical maximum values: V i = 8 V, I i = ma, P i = 660 mw; C i nf, L 0 µh i Permissible temperatures Medium C Electronics / environment C Ex-protection: application in zone 0: C application in zone or higher: C Storage C accuracy according to IEC limit point adjustment (non-linearity, hysteresis, repeatability) with optional accuracy 0. % FSO the response time is 00 msec approved for atmospheric pressure from 0.8 bar up to. bar pressure measurement

3 LMP Mechanical stability Vibration 0 g RMS ( Hz) Shock 00 g / msec Mechanical connection G/4 DIN 85 Total length of devices with Ex-protection increases by 6 mm! Total length of devices with accuracy 0. % FSO IEC increases by 4.5 mm! (standard and Ex-protection) Electrical connection Standard Optional DIN 4650 (IP 65) Binder Series 7 (IP 67) Mx 4-pin (IP 67) Cable gland (IP 67) 4, 5 Cable outlet (IP 68) 4 Buccaneer (IP 68) 6 4 different cable types and lengths available 5 standard: m PVC cable (without ventilation tube), optionally cable with ventilation tube 6 cable with ventilation tube required

4 LMP Materials Pressure port stainless steel.457 (6Ti) / others on request Housing stainless steel.40 (04) Seals (media wetted) FKM / EPDM / others on request Diaphragm stainless steel.445 (6L) Media wetted parts pressure port, seals, diaphragm Miscellaneous Cable capacitance 7 cable without air tube: signal line/shield: 60 pf/m signal line/signal line: 0 pf/m cable with air tube: signal line/shield: 50 pf/m signal line/signal line: 00 pf/m Cable inductance 7 cable without air tube: signal line/shield: 0.65 µh/m signal line/signal line: 0.65 µh/m cable with air tube: signal line/shield:.0 µh/m signal line/signal line:.0 µh/m Current consumption signal output current: max. 5 ma signal output voltage: max. 7 ma Weight Installation position any 8 Operational life approx. 00 g > 00 x 0 6 cycles Pin configuration Electrical connection DIN 4650 Binder 7 (5-pin) -wire-system Supply + Supply 4 -wire-system Supply + Supply Signal + Wiring diagrams -wire-system (current) -wire-system (current) 7 if the electrical connection is a mounted cable by factory Mx (4-pin) Buccaneer (4-pin) Ground ground pin Ground ground pin wire-system (voltage) Cable colours 7 (DIN 4700) white brown yellow / green (shield) white brown green yellow / green (shield) This data sheet contains product specification, properties are not guaranteed. Subject to change without notice. 8 Pressure transmitters are calibrated in a vertical position with the pressure connection down. If this position is changed on installation there can be slight deviation in the zero point for pressure ranges P N bar. LMP_E_0006 Telefon +4 (0) 5 / 8-0 Telefax +4 (0) 5 / info@bdsensors.de

5 Fax: +4 (0) 5 / 8 - Ordering code LMP LMP Pressure in bar in mwc Input [mwc] [bar] 0,4 0, ,6 0, , ,6 0, ,5 0, , , , , , , , Pressure port Stainless steal.457 (6Ti) Diaphragm Stainless steel.445 (6L) Output 4 0 ma / -wire 0 0 ma / -wire 0 0 V / -wire Intrinsic safety 4 0 ma / -wire Seals FKM EPDM Electrical connection Male and female plug DIN 4650 Binder series 7 (5-pin) Cable gland incl. Cable Cable outlet , T R 0 Male plug Buccaneer IP Mx (4-pin) M 0 0 Accuracy standard for P N > 0,4 bar 0,5 % standard for P N 0,4 bar 0,5 % 5 option for P N > 0,4 bar 0,5 % option for P N 0,6 bar 0, % Special version standard special compensation C different cable types and lengths deliverable standard: m PVC cable without ventilation tube for gauge pressure cable with ventilation tube required E BD SENSORS GmbH BD-Sensors-Straße Telefon +4 (0) 5 / D - 5 Thierstein Telefax +4 (0) 5 / 8 - info@bdsensors.de 0006 This ordering code contains product specification; properties are not guaranteed. Subject to change without notice.

- special pressure ranges - variety of electrical and mechanical. Characteristics. - other versions on request

- special pressure ranges - variety of electrical and mechanical. Characteristics. - other versions on request DMP Industrial Pressure Transmitter for Low Pressure piezoresistive stainless steel sensor O p t i o n : f l u s h v e r s i o n accuracy: 0.75 %, 0.5 %, 0.0 %, 0.05 % FSO BFSL (0.5 %, 0.5 %, 0. %, 0.