NovaLynx Corporation
225-HMP60x
Page 4
February 2021
1
FORWARD
Thank you for purchasing NovaLynx products. NovaLynx has been designing and manufacturing
weather instruments since 1988. NovaLynx represents several well-known brands of quality
manufacturers, including Gill Instruments, RM Young, Kipp & Zonen, and Vaisala. It is our hope that our
products will meet all your monitoring requirements.
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INTRODUCTION
225-HMP60 Temperature and Relative Humidity Sensors
are highly accurate and easy to use. The
replaceable humidity sensor element and RTD temperature sensor are protected by a filter/cap which
screws into the stainless steel body. The probe is detachable from the 12" (30 cm) cable by means of
an M8 connector. Additional cable may be ordered per foot (NovaLynx 330-0524).
Relative humidity is measured by a thin film capacitive sensing element. The sensor range is 0 to 100%
relative humidity. Temperature is measured by a 1000 ohm RTD element. The temperature range is -40
to +60°C (-40 to +140°F).
Model 225-HMP60A features two 0-1 V outputs
Model 225-HMP60C features two 0-5 V outputs
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WIRE INSTALLATION TABLE
CAUTION - To prevent damage to the sensor and monitoring equipment, disconnect power from the
system before connecting the sensor. Note carefully which wire table applies to your sensor.
Pin
Wire Color
Function
225-HMP60A
225-HMP60C
1
Brown
+Power input
5 to 28 Vdc
8 to 28 VDC
2
White
Relative humidity signal
0 to 1 V
0 to 5 V
3
Blue
Ground (common)
GND
GND
4
Black
Temperature signal
0 to 1 V
0 to 5 V
NC
Clear
Earth ground
Earth GND
Earth GND
225-HMP60 with Standard 12" Cable
Pin
Wire Color
Function
225-HMP60A
225-HMP60C
1
Red
+Power input
5 to 28 Vdc
8 to 28 VDC
2
Brown
Relative humidity signal
0 to 1 V
0 to 5 V
3
Black
Ground (common)
GND
GND
4
White
Temperature signal
0 to 1 V
0 to 5 V
NC
Bare
Earth ground
Earth GND
Earth GND
225-HMP60 with Extended Cable
24 AWG, 5-conductor, shielded (PN 330-0524)
