
SERIES RHPLC | WALL MOUNT HUMIDITY/TEMPERATURE TRANSMITTER
BENEFITS/FEATURES
• Reduced installation cost with combined humidity and temperature sensing
• Wide application environments from a large selection of temperature sensors and 2% to 3% accuracies
APPLICATIONS
• Air economizers
• Room comfort monitoring
DESCRIPTION
The Series RHPLC Wall Mount Humidity/Temperature Transmitter is
a compact economical sensor for the building automation marketspace.
The stylish housing is well vented to provide air ow across the sensor to
improve measurement accuracy. Each unit utilizes a capacitive polymer
sensing element to deliver a proportional analog output. A combination
humidity and temperature model can be congured with current, voltage,
RTD, or thermistor output. A wide selection of passive RTD or thermistor
sensors are available in this series.
SPECIFICATIONS
Sensor Capacitive polymer.
Relative Humidity Range 0 to 100% RH.
RH Accuracy ±2% 10 to 90% RH @ 25ºC for 2% accuracy units; ±3% 20 to 80% RH @ 25°C for 3% accuracy units.
RH Hysteresis ±0.8%.
RH Repeatability ±0.1% typical.
Temperature Output Range -40 to 140°F (-40 to 60°C).
Accuracy Passive Thermistor
Temperature Sensor
Accuracy RTD Temperature Sensor DIN class B; ±0.3ºC @ 0ºC (±0.54ºF @ 77ºF).
Accuracy Current/Voltage Tempera-
ture Output
Temperature Limits Operating: -40 to 140°F (-40 to 60°C); Storage: -40 to 176°F (-40 to 80°C).
Power Requirements 10-35 VDC for 4-20 mA or 0-5 VDC output; 15-35 VDC for 0-10 VDC output; 10-29 VAC for 0-5 VDC output;
Response Time 8 s (t63).
Electrical Connections Screw terminal block.
Enclosure Material Polycarbonate.
Weight 4.4 oz (125 g).
Agency Approval CE.
±0.36ºF @ 77ºF (±0.2ºC @ 25ºC).
±0.9ºF @ 72ºF (±0.3ºC @ 25ºC).
15-29 VAC for 0-10 VDC output.
Drift <0.25% RH/year.

DIMENSIONS
WIRING DIAGRAMS
POWER
SUPPLY
-
+
4-1/2
14.30]
2-51/64
[27.69]
2X-11/64
[4.47]
31/64
[12.32]
[14.02]
HOW TO ORDER
Use the bold characters from the chart below to construct a product code.
3-1/64
RH RECEIVER
4-20 mA
RH RECEIVER
+
1 2 3
-
TEMP RECEIVER
4-20 mA
+
4 5 6 7 8
PASSIVE TEMP.
SENSOR
(IF PRESENT)
Current output wiring
POWER
SUPPLY
-+
+
1 2 3 4 5 6 7 8
Voltage output wiring
TEMP
+
RECEIVER
PASSIVE TEMP.
SENSOR
(IF PRESENT)
RHPLC 1-2 0N -FC
OPTIONS
SERIES
RHPLC: Wall mount humidity/temperature transmitter
FC: Factory calibration certicate (3%
accuracy units)
ACCURACY
-2: 2% accuracy
-3: 3% accuracy
HOUSING
N: North American style wall mount
HUMIDITY OUTPUT
1: Current 4-20 mA
2: Voltage 0-10 VDC
3: Voltage 0-5 VDC
TEMPERATURE OUTPUT
0: None
1: Current 4-20 mA
2: Voltage 0-10 VDC
3: Voltage 0-5 VDC
A: 10K Ω @ 25°C thermistor type III
B: 10K Ω @ 25°C thermistor type II
C: 3K Ω @ 25°C thermistor
D: 100 Ω RTD DIN 385
E: 1K Ω RTD DIN 385
F: 20K Ω @ 25°C thermistor
DWYER INSTRUMENTS, INC.
©Copyright 2021 Dwyer Instruments, Inc.
Printed in U.S.A. 6/21 DS-RHPLC Rev. 2
Important Notice: Dwyer Instruments, Inc. reserves the right to make changes to or discontinue any product or service identied in this publication without notice. Dwyer advises its customers to obtain the
latest version of the relevant information to verify, before placing any orders, that the information being relied upon is current.