Product Overview

HE-69xx Series Duct Probe Humidity and
Temperature Sensors Product Bulletin
Introduction
The HE-69xx Sensor Series contains relative humidity (RH)
sensing products with ±2% or ±3% accuracy.
The HE-69xx Series Duct Probe Humidity and Temperature
Sensors combine humidity and temperature sensing
in an all-plastic enclosure for use inside ducts. These
sensor models are available with a nickel or platinum
temperature sensor.
The input power options are 14 VDC to 30 VDC or 20
VAC to 30 VAC. The output signal is 0 VDC to 10 VDC for
humidity indication.
Features and benefits
• Tested and calibrated with equipment certified as
compliant with National Institute of Standards and
Technology (NIST) guidelines.
• ±2% RH accurate model includes test and calibration
equipment certificate of calibration conformance.
• User-selectable output voltage range allows choice
of standard voltage outputs for use with systems in
service or new systems.
• All-plastic material for duct probe improves thermal
performance and complies with Underwriters
Laboratories Inc.
®
(UL) flammability ratings for plenum
use; complies with Blue Angel (Germany) and TCO'95
(Sweden) environmental regulations.
Figure 1: HE-69xx Series Duct Probe Humidity and
Temperature Sensor
Product overview
Important: The HE-69xx Series Duct Probe Humidity
and Temperature Sensor is intended to provide
an input to equipment under normal operating
conditions. Where failure or malfunction of the
sensor could lead to personal injury or property
damage to the controlled equipment or other
property, additional precautions must be designed
into the control system. Incorporate and maintain
other devices, such as supervisory or alarm systems
or safety or limit controls, intended to warn of or
protect against failure or malfunction of the sensor.
Important: Le HE-69xx Series Duct Probe Humidity
and Temperature Sensor est destiné à transmettre
des données entrantes à un équipement dans
des conditions normales de fonctionnement.
Lorsqu'une défaillance ou un dysfonctionnement
du sensor risque de provoquer des blessures
ou d'endommager l'équipement contrôlé ou un
autre équipement, la conception du système de
contrôle doit intégrer des dispositifs de protection
supplémentaires. Veiller dans ce cas à intégrer de
façon permanente d'autres dispositifs, tels que
des systèmes de supervision ou d'alarme, ou des
dispositifs de sécurité ou de limitation, ayant une
fonction d'avertissement ou de protection en cas de
défaillance ou de dysfonctionnement du sensor.
The HE-69xx Series Duct Probe Sensors provide humidity
and temperature sensing inside ducts. The humidity
element senses over the entire range of 0% RH to 100% RH
and is housed in a plastic enclosure that is easy to install.
Use temperature and humidity information from the
HE-69xx Series Duct Probe Sensor to precisely calculate
enthalpy. This calculation is important to determine an
energy-efficient and cost-effective economization strategy.
Duct humidity is an important factor in the overall quality
of indoor air. Use the HE-69xx Series Duct Probe Sensor to
monitor and compare duct humidity with levels advised in
ASHRAE ventilation standards.
LIT-12013478
2020-01-27
HE-69120NP-0, HE-69130NP-0,
HE-69520NP-0, HE-69530NP-0