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LPM/LPX1000 Series Differential Pressure

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Ranges ±0.1 to ±30 inH2O (0.25 to 70 m bar)
Accuracy: ±0.5% FS BSL (±0.25% FS optional)
Long term stability: > ±0.5% FS / Year
Calibration certificate option
Wet/wet differentialpressure
User accessible damping
Unidirectional or bidirectional operation
Current or voltage output

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The LP 1000 Series wet/wet differential pressure transmitter is ideally suited for use in clean room HVAC monitoring and control. The device offers several improvements over traditional sensors such as user accessible damping, excellent long term stability, and wet/wet differential operation where conductive fluids may be exposed to the measurement diaphragms. For applications where the pressure transmitter will be installed within one of the pressure zones, the LPM/LPX 1000 is available in a wet/wet gauge pressure configuration where the second pressure port is eliminated, byventing the sensor directly to the atmosphere.The LP 1000 Series wet/wet differential pressure transmitter is ideally suited for use in clean-room HVAC monitoring and control.

Pressure Measurement

Operating Ranges	0.1, 0.2, 0.25, 0.5, 0.75, 1, 2, 2.5, 3, 4, 5, 6, 8, 10, 16, 20 inH2O and 1 psi unidirectional and bidirectional (other pressure units available, see ordering information).
Overpressure	3.5 psi for ranges 0.1 to 1 inH2O 10 psi for ranges 2 to 6 inH2O 17 psi for ranges 8 inH2O to 1 psi
Maximum Static (Line) Pressure	30 psi for all ranges
Electrical Supply Voltage	Power Supply (Vs) (at the terminals) Current output without display 10 to 30 VDC Current output with display 15 to 30 VDC Current output with display and LED indicators 20 to 30 VDC Voltage output 10 to 30 VDC Voltage output (0 to 10 VDC) 15 to 30 VDC Power Supply Intrinsically Safe Units LPX sensor without display 11 to 30 VDC LPX sensor with display 17 to 30 VDC LPX sensor with display and LED indicators 17 to 30 VDC
Output Signal Option	Unidirectional Voltage 0 to 2.5 VDC 0 to 5 VDC 0 to 10 VDC 1 to 6 VDC Current 4 to 20 mA Bidirectional Voltage 2.5 ±2.5 VDC 5 ±5 VDC Current 12 ±8 mA Note: voltage outputs are three wire, current outputs are two wire.
Zero Offset Adjustment	±5% FS
Span Adjustment	±5% FS
Response Time	User-adjustable 10 ms to 2 s (factory default setting 10 ms)
Load Impedance	Voltage output 5 kO minimum Current output RL (kO) < (Vsupply - Vs) 20

Performance

Combined Effects of Non-linearity, Hysteresis and Repeatability	±0.5% FS Best Straight Line (BSL ) ±0.25% FS BSL (optional)
Static Pressure Effects	Effects may be zeroed out at operating line pressure
Stability	At standard conditions will not change by more than 1% FS averaged over one year
Supply Sensitivity	<0.05% FS per volt
Compensated Temperature Range	32 to 122° F (0 to 50° C)
Temperature Effects	Over the range 32 to 122 °F (0 to 50° C) Ranges from 0.1 inH2O to 0.5 inH2O ±0.01 inH2O Ranges from 0.8 inH2O to 1 inH2O ±0.02 inH2O Ranges from 2 inH2O to 3 inH2O ±0.05 inH2O Ranges from 4 inH2O to 6 inH2O ±0.10 inH2O Ranges from 8 inH2O to 14 inH2O ±0.20 inH2O Ranges from 16 inH2O to 28 inH2O ±0.40 inH2O

LPM/LPX1000 Series Cross Section

Environmental

Protection	Type 3 IP 64 (Except with C2 screw terminals)
Temperature Range	Operating 32 to 122 °F (0 to 50 °C)
Humidity	0 to 100% RH, non condensing.
Mounting Position Effect	No effect on span, possible zero shift correctable by potentiometer adjustment. Note: Factory calibrated with diaphragm in the vertical plane.

Physical

Housing	Aluminum
Wetted Parts	Gases and liquids compatible with aluminum, stainless steel 316L, beryllium copper, brass, Inconel X750, adhesives and plastics.
Electrical Connection	DIN 43650A plug with free mating socket Screw terminals outside body DIN C plug with free mating socket
Pressure Connection	10-32 UNF female to 0.125 in (3.175 mm) barbed fitting
Weight:	1 to 2 lb (0.45 to 0.91 kg) approx depending upon configuration
Certifications	CE marked ATEX Intrinsically Safe (optional, on current output model only) LCIE05ATEX6081X

LPM/LPX1000 Series Dimension Drawing


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