Product Overview

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Printed in U.S.A. 4/20 DS-RHP Rev. 4
®
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The Series RHP Humidity/Temperature Transmitters combine the
voltage or current humidity transmitter output with a passive temperature
thermistor or RTD output. The polymer capacitance humidity sensor
reduces longterm affect of condensation, fog, or high humidity. The
humidity sensors are available with 2%, 3% or 5% accuracies. Duct
mounted transmitters are available with an optional two-line alpha
numeric LCD display.
• 2%, 3%, or 5% accuracy models to meet project requirements
• Integral temperature sensors reduces number of devices to install
• Radiation shield option protects sensor from radiant heating effects allowing for accurate readings even when mounted in
direct sunlight
• Air economizers
• Outdoor temperature and relative humidity reference for building systems
FEATURES/BENEFITS
DESCRIPTIONAPPLICATIONS
SERIES RHP | HUMIDITY/TEMPERATURE TRANSMITTERS
ACCESSORIES
Model Description
A-RHP-FC
A-RHP-RT
Replacement plastic hydrophobic lter
Retrot tool for tting O-ring on RHP-D/M models for new lter A-RHP-FC
OSA
(outside air)
OSA (outside air)
with sintered lter
OSA (outside air)
with radiation shield
Duct mount
HOW TO ORDER
SERIES
RHP: RH/passive temperature sensor transmitter
ACCURACY
-2: 2% accuracy
-3: 3% accuracy
-5: 5% accuracy
RH OUTPUT
1: 4-20 mA
2: 0-10 V
3: 0-5 VDC
TEMPERATURE SENSOR
0: None
1: 4-20 mA
2: 0-10 VDC
3: 0-5 VDC
A: 10K @ 25°C thermistor type III
B: 10K @ 25°C thermistor type II
C: 3K @ 25°C thermistor
D: 100 Ω RTD DIN 385
E: 1K Ω RTD DIN 385
F: 20K Ω @ 25°C thermistor
OPTIONS
-LCD: LCD display
-NIST: NIST traceable calibration certicate
RHP -2 D 1
Use the bold characters from the chart below to construct a product code.
-LCDA
HOUSING TYPE
D: Duct mount with plastic hydrophobic lter
O: OSA (outside air)
S: OSA with sintered lter*
R: Radiation shield
*Use OSA with sintered lter models when purchasing
Series RHRS separately.
SPECIFICATIONS
Relative Humidity Range 0 to 100% RH.
Temperature Range -40 to 140°F (-40 to 60°C).
Accuracy, RH RHP-2XXX ±2% 10-90% RH @ 25°C; RHP-3XXX ±3% 20-80% RH @ 25°C; RHP-5XXX ±5% 20-80% RH @ 25°C.
Accuracy, Thermistor Temp
Sensor
±0.2°C @ 25°C (±0.36°F @ 77°F).
Accuracy, RTD Temp Sensor DIN Class B; ±0.3°C @ 0°C (±0.54°F @ 32°F).
Accuracy, Solid State Band
Gap
±0.9°F @ 77°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.
0-5/10 V Output Models Power requirements: 15-35 VDC or 15-29 VAC; Output signal: 0-10 V @ 5 mA max.
Response Time 15 s.
Electrical Connections Removable screw terminal block.
Conduit Connection Duct mount: 1/2˝ NPS; OSA: PG11 or PG16 (1/2˝ conduit) knockouts.
Drift < 1% RH/year.
RH Sensor Capacitance polymer.
Temperature Sensor Types 1, 2, 3: Solid state band gap; Curves A, B, C: Thermistor; Curves D, E: Platinum RTD DIN 385.
Enclosure Duct mount: PBT; OSA: Polycarbonate.
Enclosure Rating Duct mount: NEMA 4X (IP66) for housing only; OSA: NEMA 4X (IP66).
Display Duct mount only, optional 2-line alpha numeric, 8 characters/line.
Display Resolution RH: 0.1%; 0.1°F (0.1°C).
Weight Duct mount: .616 lb (.3 kg); OSA: 1 lb (.45 kg).
Agency Approvals CE.
DIMENSIONS
6-25/32
[172.09]
5-1/8
[130.18]
4-17/32
[115.09]
2-15/64
[56.75]
3-1/8
[79.38]
4-17/32
[115.09]
Ø3/16
[4.76]
MOUNTING
HOLES
TYP 4 PLCS
3-1/8
[79.38]
1-13/64
[30.56]
55/64
[21.83]
Duct mount
OSA (outside air)
OSA (outside air) with sintered lter
2-1/4
[57.15]
55/64
[21.83]
6-25/32
[172.16]
3-45/64
[94.06]
2-41/64
[67.07]
5-1/8
[130.18]
1/2 NPT
2-11/64
[55.17]
8-61/64
[227.30]
2-41/64
[67.03]
2-9/64
[54.37]
3-11/64
[80.57]
35/64
[13.89]
2-9/16
[64.96]
2-11/64
[55.12]
[3] 3/16 [4.76] HOLES
EQUALLY SPACED
ON A 4.115 [104.52] BC
A-RHP-FC