The LPN-H is a complete relative humidity and temperature sensing module, with two loop powered 4~20mA output signals, representing 0~100%RH and 0~100ºC.
Two versions are available:
(i) Wall mount.
(ii) Duct mount.
Both versions come complete in an industry standard aluminium connection head.
The digital relative humidity sensor and temperature compensating sensor protrude from the head inside a protective cap. This cap allows air to circulate to the sensors.
- NEW Sensirion SHT25 Digital Humidity Sensor.
- Long Term Stability.
- Fast response: 4 seconds from 0 to 100%RH under ideal conditions.
- Dual 4~20mA Outputs.
- %RH Temperature Compensated Linear Output.
- Pt100 RTD Sensor.
- Temperature Output 0~100ºC (0~200ºF optional).
- Temperature Output Linearised.
- Very Compact Design.
- High Accuracy.
- Low Cost.
- Easy to Install.
- Reverse Polarity Protection.
- Wide Power Supply Range.
- Rugged and reliable.
|LPN-H-W (rev 1)
||Wall Mount, 0~100%RH Transmitter, 0~100ºC Transmitter.
|LPN-H-D (rev 1)
||220mm Duct Mount, 0~100%RH Transmitter, 0~100ºC Transmitter.
||100mm Flange for LPN-H-D.
Note: 0~200ºF temperature output optional. Please specify when ordering.
The wide range of the humidity and temperature sensors offer long term reliability over a broad range of applications. The sensors resist contaminating vapours such as organic solvents, chlorine, and ammonia.
Calibration system for LPN-H series Humidity sensors:
The LPN-H-Ref system is designed to allow in situ calibration of LPN-H-W and LPN-H-D humidity transmitters. The LPN-H-Ref system consists of corrosion resistant stainless steel canisters containing humidity regulating salt solutions that replace the black protective filter on the sensor.
It is essential that the humidity sensor is mounted vertically with the filter at the bottom to prevent spillage.
Ordering Information for Calibration LPN-H-Ref:
Call for these
||Calibration canister with 75% RH salt solution.
||Calibration canister with 43% RH salt solution.
||Calibration canister with 33% RH salt solution.