Dwyer Instruments RHP-W series Specifications-Installation And Operating Instructions

Dwyer Instruments RHP-W series Specifications-Installation And Operating Instructions

Wall mount humidity / temperature / dew point transmitter

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Shown with optional LCD display
The Series RHP-W Wall Mount Humidity/Temperature/Dew Point Transmitter
is the most versatile room transmitter on the market. The stylish housing is well
vented to provide air flow across the sensor to improve measurement accuracy. An
optional LCD display can be integral to the transmitter or a remote display can be
ordered for building balancing or LEED validation. The LCD display indicates the
ambient temperature along with the humidity or dew point. The transmitter has
internal dip switches to select the temperature engineering units and whether the
transmitter outputs humidity or dew point.
The humidity and temperature sensors are field replaceable to reduce service cost
and inventory. The humidity and the dew point are measured using a capacitive
polymer sensor that completely recovers from 100% saturation. The humidity and
dew point can have either a current or voltage output, while the optional tempera-
ture output can be a current, voltage, RTD or thermistor. For models with current
or voltage for the temperature output, the temperature range is field selectable.

INSTALLATION

WARNING
Disconnect power supply before installation to prevent electrical
shock and equipment damage.
Make sure all connections are in accordance with the job wiring diagram and in
accordance with national and local electrical codes. Use copper conductors only.
CAUTION
Use electrostatic discharge precautions (e.g., use of wrist
straps) during installation and wiring to prevent equipment dam-
age.
CAUTION
Avoid locations where severe shock or vibration, excessive
moisture or corrosive fumes are present.
CAUTION
Do not exceed ratings of this device, permanent damage not
covered by warranty may result. The 4-20 mA models are not
designed for AC voltage operation.
DWYER INSTRUMENTS, INC.
P.O. Box 373 • Michigan City, IN 46360-0373, U.S.A.
1.800.561.8187
Series RHP-W Wall Mount Humidity/Temperature/Dew Point Transmitter
Specifications - Installation and Operating Instructions
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SPECIFICATIONS

Relative Humidity Range: 0 to 100% RH.
Temperature Range: -40 to 140°F (-40 to 60°C) for thermistor and RTD sensors.
-20 to 140°F (-28.9 to 60°C) for solid state temperature sensors.
Dew Point Temperature Range: -20 to 140°F (-28.9 to 60°C); 0 to 100°F
(-17.8 to 37.8°C); 40 to 90°F (4.4 to 32.3°C); -4 to 140°F (-20 to 60°C) field selec-
table ranges.
Accuracy:
RH: Model RHP2 ±2% 10-90% RH @ 25°C; Model RHP3 ±3% 20-80% RH @
25°C.
Thermistor Temperature Sensor: ±0.4°F @ 77°F (±0.22°C @ 25°C).
RTD Temperature Sensor: DIN Class B; ±0.54°F @ 32°F (±0.3°C @ 0°C).
Solid State Temperature Sensor: ±0.9°F @ 72°F (±0.3°C @ 25°C).
Hysteresis: ±1%.
Repeatability: ±0.1% typical.
Temperature Limits: -40 to 140°F (-40 to 60°C).
Storage Temperature: -40 to 176°F (-40 to 80°C).
Compensated Temperature Range: -4 to 140°F (-20 to 60°C).
4-20 mA Loop Powered Models:
Power Requirements: 10-35 VDC.
Output Signal: 4-20 mA, 2 channels for humidity/solid state temperature sensor
models (loop powered on RH). Switch selectable RH/dew point. Switch
selectable normal or reverse output.
0-5/10V Output Models:
Power Requirements: 15-35 VDC or 15-29 VAC.
Output Load: 5 mA max., 2 channels for humidity/solid state temperature
sensor models. Switch selectable 0-10V/2-10V or 0-5V/1-5V output. Switch
selectable RH/dew point. Switch selectable normal or reverse output.
Solid State Temperature Sensor Output Ranges: Switch selectable,
-20 to 140°F (-28.9 to 60°C); 0 to 100°F (-17.8 to 37.8°C); 40 to 90°F 
(4.4 to 32.3°C); -4 to 140°F (-20 to 60°C).
Response Time: 15 seconds.
Electrical Connections: Screw terminal block.
Drift: <1% RH/year.
RH Sensor: Capacitance polymer.
Enclosure Material: White polycarbonate.
Display: Optional LCD, backlit on 0-5/10V models. Switch selectable %RH or dew
point, °F/°C.
Display Resolution: RH: 1%; Temperature: 0.1°F (0.1°C); Dew Point: 1°F (1°C).
Weight: 0.3 lb (0.14 kg).
Agency Approvals: CE.
Phone: 219/879-8000
Fax: 219/872-9057
information@itm.com
.com
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e-mail: info@dwyer-inst.com
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Summary of Contents for Dwyer Instruments RHP-W series

  • Page 1 Display: Optional LCD, backlit on 0-5/10V models. Switch selectable %RH or dew point, °F/°C. Display Resolution: RH: 1%; Temperature: 0.1°F (0.1°C); Dew Point: 1°F (1°C). Weight: 0.3 lb (0.14 kg). Agency Approvals: CE. DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.com P.O. Box 373 • Michigan City, IN 46360-0373, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com...
  • Page 2 Models with Selectable Current or Voltage Outputs (RHP-XW44) HINGE These models may be wired for current or voltage output. Note that both outputs TO REMOVE COVER must be wired either for current or voltage. It is not possible to wire one output for APPLY PRESSURE TO BOTTOM TAB WHERE MOUNTING...
  • Page 3 DIP SWITCH SETTINGS TROUBLESHOOTING To access the DIP SWITCH, remove the cover of the unit as shown in Figure 1. The 1. Verify that the unit is mounted in the correct position. DIP SWITCH is located on the back of the circuit board. 2.
  • Page 4 RHPS-D3D RHP-3(W)XE RHPS-D3E RHP-3(W)XF RHPS-D3F RHP-3(W)X(0, 1, 2, 4) RHPS-D30 ©Copyright 2012 Dwyer Instruments, Inc. Printed in U.S.A. 12/12 FR# 03-443752-00 Rev. 3 DWYER INSTRUMENTS, INC. Phone: 219/879-8000 www.dwyer-inst.com P.O. Box 373 • Michigan City, IN 46360-0373, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com...

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