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LPM/LPX1000 Series Differential Pressure Transmitter

LPM/LPX1000 Series- Differential Pressure Transmitter

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.

 

 

LPM/LPX 1000 Specifications

  • 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

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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