LPN-H - Relative Humidity & Temperature Transmitter:
Product Specifications:
Download Humidity Measurement Brochure
Download Sensirion Digital Sensor Calibration Certificate
Description:
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.
Features:
- 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.
Ordering Information:
| LPN-H-W | Wall Mount, 0~100%RH Transmitter, 0~100ºC Transmitter. |
| LPN-H-D | 220mm Duct Mount, 0~100%RH Transmitter, 0~100ºC Transmitter. |
| LPN-H-F | 100mm Flange for LPN-H-D. |
Note: 0~200ºF temperature output optional. Please specify when ordering.
Information on Calibration system for LPN-H series Humidity sensors >>
Reliability:
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.
Important Note:
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:
| LPN-H-75 | Calibration canister with 75% RH salt solution. |  |
| LPN-H-43 | Calibration canister with 43% RH salt solution. | |
| LPN-H-33 | Calibration canister with 33% RH salt solution. |
Older LPN-H model (with Monolithic IC Humidity Sensor) Download:
