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LP 1000 Series

Low Pressure Differential/Gauge Sensors

The LP 1000 series of low differential/gauge pressure sensors is specifically designed for use in cleanroom, HVAC control and similar applications where the accurate and reliable monitoring of very low pressures is required. This includes wet/wet applications where the sensor may be exposed to aggressive and conductive fluids.

Feature

Ranges from 0.25mbar to 70mbar
Full wet/wet media compatibility uni or bi-directional
Optional LCD, panel or wall mounting
0.5% accuracy standard, 0.25% optional
Current or voltage outputs, duplicated to front (LCD models)
Optional green or red status LEDs and square root extraction

Applications

Selection of related products

Pictured from left to right:

DPI 515 High Speed low pressure controller
DPI 610/615LP Portable low pressure calibrator
LP 9000 Precision low pressure sensor
Pressurements V1600 Primary reference standard

Specification

STANDARD SPECIFICATIONS

Pressure Measurement

Operating Pressure Ranges

Standard full scale operating ranges available as below (mbar values).

Zero and span adjustment

Site adjustable potentiometer trim: Zero: 0.3 mbar (0.25mbar to 2.5mbar ranges.) 1.5 mbar (5mbar to 15mbar ranges). 8 mbar (20mbar to 70mbar ranges). Span: 5% F.S. (all ranges).

Pressure Media

Gases and liquids compatible with aluminium, beryllium-copper and brass.

Output Signal (Uni-directional)

LPM :

0 - 2.5Vd.c. (3-wire)
0 - 5Vd.c. (3-wire)
1 - 6Vd.c. (3-wire)
0 - 10Vd.c. (3-wire)

LPX : 4 - 20mA (2-wire)

Output Signal (Bi-directional)

LPM :

2.5Vd.c. 2.5Vd.c. (3-wire)
5Vd.c. 5V.d.c. (3-wire)

LPX : 12mA 8mA (2-wire)

Supply Voltage

Without LCD: 10 - 30Vd.c. With standard LCD: 15 - 30 Vd.c.
With LCD and LED: 20 - 30 Vd.c.
With LCD and square root extraction: 15 - 30 Vd.c.
Note: minimum 15 Vd.c. supply for 0 - 10 Vd.c. output.