®
HumiTrac
™
XR
Telaire
®
Dew Point,
Enthalpy, Wet Bulb, and
Temperature Transmitters
Features
• Microprocessor-based signal processing
• Excellent accuracy
• Weather resistant duct and outside air
mounting
• Easy to install
• Field-replaceable RH sensor saves time
• Multiple user selectable outputs
• Robust, proven capacitive sensor technology
• Attractive, modern look and rugged
packaging
• Versatile temperature measurement
• Temperature compensated
• Low cost of ownership, very economical
• Two-year transmitter warranty and one year
sensor warranty
• RoHS compliant
Benefits
• Improves indoor air quality (IAQ)
• Saves energy
• Helps prevent mold growth
• Provides a more comfortable environment
• Helps prevent condensation within a building
• Supplies more useful information on the
indoor/outdoor environment to help building
operators make better decisions
• Optimizes industrial environments like
pharmaceutical plants and clean rooms
Amphenol
Advanced Sensors
Applications
• Energy Management Systems (EMS)
• Enthalpy control
• Hospitals/labs
• Refrigeration control
• Pharmaceutical
• Evaporative cooling decision potential
• Supply air setpoint (condensation prevention)
• Economizer efficiency
• Supermarkets
HumiTrac XR Transmitters are rugged, compact and
ideally suited for monitoring dew point, wet bulb,
enthalpy or temperature in building automation and
process applications. Using a capacitive RH sensor,
the units’s microprocessor computes the dew point,
wet bulb, or enthalpy.
Dew Point
temperature is the temperature at which
any given volume of air must be cooled in order that
water vapor will condense into water. Calculated in
this transmitter from relative humidity and dry bulb
temperature sensors, the output can be used in a
variety of applications. HVAC systems can keep a
building in a narrow range of dew point at far less
expense and complexity than one, which controls
relative humidity in a narrow range. Unlike relative
humidity, the dew point is not affected by changes
in dry bulb temperature as the air moves through
equipment and the building.
Dew point is a measure used in applications
for humidity control to avoid condensation of
water on cooler surfaces within a building (e.g.
windows, refrigeration cases, inside walls,
electronic equipment, and ductwork). This type of
condensation can lead to discoloration, physical/
structural damage, and mold/mildew growth.
Dew point control provides a more comfortable
environment, energy savings, and better indoor air
quality.
Wet Bulb temperature is indicative of a wetted
temperature sensor in an air stream. It is the
temperature a volume of air would have if cooled
adiabatically to saturation at constant pressure by
evaporation of water into it, all latent heat being
supplied by the volume of air. Wet bulb temperature
is determined in this transmitter by calculation
from the relative humidity and the ambient dry
bulb temperature. Many building specifications
are surrounding wet bulb measurement, so this
transmitter helps provide a direct signal, reducing
computing and offloading calculations.
Enthalpy is an arbitrary measurement of the relative
energy in the air. In this transmitter, it is calculated
from the relative humidity and dry bulb temperature
measurements. The output is useful in comparing
the requisite energy required to heat or cool, and
make decisions as to which air stream to use for
least energy use to get to design criteria.
Enhanced Field Serviceability
HumiTrac XR features field-replaceable Relative
Humidity (RH) sensor tip module that allows the end
user to replace the sensor on-site while maintaining
±2.5% RH accuracy and NIST traceability. The user
simply powers off the unit, installs the new sensor
module and powers back the unit. This virtually
eliminates the need for time consuming and costly
factory calibration, while reducing downtime during
service intervals to near zero.
Unsurpassed Sensor Performance
HumiTrac XR utilizes a rugged capacitive sensor
that provides full-scale 0-99% RH measurement
with unsurpassed response times, linearity and
stability. Recovery to condensation and chemicals
is excellent and an integrated filter, plus conformal-
coated module electronics ensure long life. All
sensors undergo a ten hour digital calibration,
certified against a primary NIST reference
standard. Signal conditioned temperature versions
maintain specified RH accuracy across the full
operating range of -40°F to 140°F (-40°C to 60°C).
Maximum Flexibility
HumiTrac XR is designed to be highly
configurable in the field or in your warehouse.
By minimizing the necessary number of
configurations, we reduce distributor inventory
costs and provides maximum flexibility to the
installer. All versions feature field-selectable
outputs (0 to 5V, 0 to 10V, 4 to 20mA). Simple
adjustment of slide switches is all that is
required. Signal-conditioned temperature
versions are available scaled from -20°F to
120°F (-28.8°C to 49°C) for duct mount and
outside air configurations, or 40°F to 90°F (4.4 to
32.2°C) for space mount configuration. Custom
ranges are available upon request for high
volume applications.
HumiTrac XR is offered in wall mount, duct
mount and outdoor air configurations
Space (Wall) Mount
Case: ABS flame retardant
3.80 in
(96.3 mm)
2.75 in
(70 mm)
Outside Air Mount
Case: ABS flame retardant
IP42 rated
4.70 in
(119.2 mm)
1/2 in
(12.7 mm)
condiut
knockout
2 places
®
6.38 in
(162 mm)
3.80 in
(96.3 mm)
Cover
Base
Rugged, Attractive Enclosures
All HumiTrac XR configurations feature rugged
flame retardant, UL-94V ABS plastic. Duct and
outdoor air versions provide excellent weather
resistance (IP42 rated). Special care has been
taken in the design of the wall mount enclosure
to provide enhanced airflow, increasing
sensor response time and virtually eliminating
the potential of “self-heating” by transmitter
electronics that can lead to decreased accuracy
measurements.
4.70 in
(119.2 mm)
Wiring
access
®
4.70 in
(119.2 mm)
3.52 in
(89.5 mm)
0.46 in
(11.7 mm)
1.28 in
(32.4 mm)
3.80 in
(96.3 mm)
Duct Mount
Case: ABS flame retardant
IP42 rated
Probe: Stainless steel
4.70 in
(119.2 mm)
Simple, Fast Installation
All HumiTrac XR models feature large
removable, pluggable terminal blocks,
eliminating the need to wire in a confined space
and allow the unit to be pre-wired separate from
the electronics, an especially attractive feature in
unfinished construction, where exposed sensors
and electronics could be damaged by moisture,
drywall dust and paint. All models incorporate
a retaining wire that attaches the cover to the
base, allowing the installer to wire the unit
without using an extra hand to hold the cover.
®
2.75 in
(70 mm)
8.80 in
(223.7 mm)
Outside Air Mount
Case: ABS flame retardant IP42 rated
Space (Wall) Mount
Case: ABS flame retardant
Duct Mount
Case: ABS flame retardant IP42 rated
Probe: Stainless steel
Lowest Cost of Ownership
With a two-year warranty*, simplified inventory
management, reduced installation times and
field-serviceability, HumiTrac XR sets the
standard in reduced cost of ownership and
performance-to-price ratio.
*Transmitter only, one year warranty on
replaceable sensor.
HumiTrac XR
Specifications
Operating Range
• -40°F to 140°F (-40°C to 60°C)
• 0% to 99% RH (non-condensing)
Power Requirements
Supply Voltage
12 to 30 VDC
Storage Temperature
-67°F to 185°F (-55°C to 85°C)
Maximum Load (current output only)
W = Supply Voltage-10
0.02
Sensing Element
Capacitive polymer sensor
General
Protection
IP42 rating for Duct Mount and Outside Air
Transmitters
Long Term Stability
Less than 1% drift per year, typical
Temperature Effect**
Delta %RH = (0.0014 x %RH + 0.1325) x T°C -
(0.0317 x %RH + 3.0876)
**Not applicable to signal-conditioned temperature
units.
Ordering Information
Model
Range
Product Description
Space (Wall Mount)
HUMI-DP-
XR-S
HUMI-EN-
XR-S
HUMI-WB-
XR-S
Duct Mount
HUMI-DP-
XR-D
HUMI-EN-
XR-D
HUMI-WB-
XR-D
Outside Air
HUMI-DP-
XR-O
HUMI-EN-
XR-O
HUMI-WB-
XR-O
-20° to 120°F (-28.8° to
49°C)
0-50 BTU/lb
DEW POINT
TRANSMITTER-OPEN
AIR
ENTHALPY
TRANSMITTER- OPEN
AIR
WET BULB
TRANSMITTER- OPEN
AIR
-20° to 120°F (-28.8° to
49°C)
0-50 BTU/lb
DEW POINT
TRANSMITTER- DUCT
MOUNT
ENTHALPY
TRANSMITTER- DUCT
MOUNT
WET BULB
TRANSMITTER- DUCT
MOUNT
40° to 90°F (4.4° to
32.2°C)
0-50 BTU/lb
DEW POINT
TRANSMITTER- SPACE
MOUNT
ENTHALPY
TRANSMITTER- SPACE
MOUNT
WET BULB
TRANSMITTER- SPACE
MOUNT
Signal Outputs
4 to 20mA, 0 to 5V or 0 to 10V (user selectable)
Space (Wall Mount) Range
Dew Point
Enthalpy
Wet Bulb
Dry Bulb
Dew Point
Enthalpy
Wet Bulb
Dry Bulb
49°C)
Dew Point
Enthalpy
Wet Bulb
Dry Bulb
40° to 90°F (4.4 ° to 32.2°C)
0-50 BTU/lb (0 to 116.3 kJ/kg)
40° to 90°F (4.4 ° to 32.2°C)
40° to 90°F (4.4 ° to 32.2°C)
-20° to 120°F (-28.8° to 49°C)
0-50 BTU/lb (0 to 116.3 kJ/kg)
0° to 100°F (-17.8° to 37.8°C)
-20° to 120°F (-28.8° to
Duct Mount/Outside Air Range
40° to 90°F (4.4° to
32.2°C)
Accuracy at 77°F (25°C) at RH 40-90%
±1.8°F (±1°C)
±2 BTU/lb (±4.7 kJ/kg)
±3°F (±1.7°C)
±0.5°C (±0.9°F)
0° to 100°F (-17.8° to
37.8°C)
0° to 100°F (-17.8° to
37.8°C)
Amphenol
Advanced Sensors
www.amphenol-sensors.com
© 2016 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice.
Other company names and product names used in this document are the registered trademarks or
trademarks of their respective owners.
AAS-920-486D - 02/2016
AAS-920-486C-03/2014
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