LPN-H - Relative Humidity & Temperature Transmitter:

Product Specifications:

Download Humidity Measurement Brochure

Download Installation Guide


LPN-H-D

LPN-H-W

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 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:

  • Dual 4~20mA Outputs.
  • Monolithic IC Humidity Sensor.
  • %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.
  • Internally Accessible Span & Zero Adjustments.
  • Wide Power Supply Range.

Ordering Information:

LPN-H-D

 220mm Duct Mount, 0~100%RH Transmitter, 0~100C Transmitter.

LPN-H-W

 Wall Mount, 0~100%RH Transmitter, 0~100C Transmitter.

LPN-H-F

 100mm Flange for LPN-H-D
Note: 0~200F 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-84

 Calibration canister with 84% RH salt solution. 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.

LPN-H-8

 Calibration canister with 8% RH salt solution.