Machine Parts For Reuse Newsgroup Discussion Forum > Small Size Parts
> Non functional
> Mechanical
> Dallas
> Johnson control he-67T3-0N0GS humidity & temp. sensor
Johnson control he-67T3-0N0GS humidity & temp. sensor
he-67xxs_sm 1900104 9thcc:# = 1
TrueRH Surface-mount Duct Humidity/Temperature
Duct Humidity/Temperature Sensors
The TrueRH product line delivers 2% and
3% Relative Humidity (RH) Sensing
Products in a full variety of packages. The
humidity sensor s All-Polymer construction
increases resistance to corrosion in HVAC
(Heating, Ventilating, and Air Conditioning)
HE-67xx Elements are products whose output
signal is 0 to 5 VDC for humidity Indication.
The HE-67xx Series sensors combine
humidity and temperature sensing in an
all-plastic enclosure used inside ducts and
economizer rooftop systems. These models
are available with a nickel or one of two
thermistor temperature sensors.
The thermistor temperature sensors have a
negative temperature coefficient, and a
reference resistance of 2.2k ohms or 10.0k
ohms. The nickel temperature sensor has a
reference resistance of 1.0k ohms. These
units can be powered with 14 to 30 VDC or 20
to 30 VAC and feature a 0 to 5 VDC output.
TrueRH Circuitry and calibration
techniques for which patient protection is
All-Polymer humidity sensor s patented
sensing element improves sensor s
humidity and temperature sensor in one
unit eliminates need for separate sensors;
reduces installation time and cost
2% RH accurate model includes a National
Institute of Standards and Technology
(NIST) certificate of conformance that
documents higher precision for 2% models
senses RH over full 0 to 100% range to
accommodate a wide range of applications
protective membrane protects sensors from
quick-mount, 2-screw installation reduces
compact enclosure for mounting inside
ducts designed for rooftop unit
applications and retrofits; enables surfacemount
HE-67xx Series TrueRH Surface-mount Duct Humidity/Temperature Sensors
14 to 30 VDC or 20 to 30 VAC at 50/60 Hz, Class 2
3 mA with no load; 25 mA maximum
0 to 5 VDC, 1k ohm maximum load
