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Intech LPN-H Duct or Wall Mount Humidity Transmitters

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.
Part Number: LPN-H
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$498.00 ex GST
[$547.80 inc GST]

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 (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.
LPN-H-F 100mm Flange for LPN-H-D.

Note: 0~200ºF temperature output optional. Please specify when ordering.

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:
Call for these 

LPN-H-75 Calibration canister with 75% RH salt solution. LPN-H-Ref
LPN-H-43 Calibration canister with 43% RH salt solution.
LPN-H-33 Calibration canister with 33% RH salt solution.

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 (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.
LPN-H-F 100mm Flange for LPN-H-D.

Note: 0~200ºF temperature output optional. Please specify when ordering.

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:
Call for these 

LPN-H-75 Calibration canister with 75% RH salt solution. LPN-H-Ref
LPN-H-43 Calibration canister with 43% RH salt solution.
LPN-H-33 Calibration canister with 33% RH salt solution.

See PDF Brochure and installation guide for full specifications

Accurate to ±2% FSO Typical. 20~80%RH, 3% at 0%RH and 100%RH.
-Important For continuous measurements of ≥90%RH, refer to operating range on next page.

Ambient Temperature Drift <±0.05%/C FSO Typical.

Humidity Sensor -Hysteresis ±0.8% of Span Typical.
-Linearity ±0.5%RH Typical.
-Repeatability ±0.5%RH Typical.
-Long Term Drift ±1%RH Typical at 50%RH in 5 years.
-Output 0~100%RH for 4~20mA.

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