Submittal Sheet

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
HUMIDITY/TEMPERATURE TRANSMITTERS
Passive Temperature Outputs, Sintered Filter Options
The Series RHP Humidity/Temperature Transmitters combine the voltage or
current humidity transmitter output with a passive temperature thermistor or RTD
output. Featuring polymer capacitance humidity sensors, models are available with
2%, 3% or 5% accuracies. Duct mounted transmitters are available with an optional
two-line alpha numeric LCD display.
FEATURES/BENEFITS
• 2%, 3%, or 5% accuracy models
• Optional LCD display on duct mount models
• Radiation shield option for outdoor installation in direct sunlight
APPLICATIONS
• Air economizers
• Outdoor temperature and relative humidity reference
• Pool room humidity monitoring
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.
Solid State Band Gap 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 s.
Electrical Connections: Removable screw terminal block.
Conduit Connection: Duct mount: 1/2˝ NPS; OSA: 1/2˝ (22.3 mm).
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.
SERIES RHP
V
I
D
E
O
O
N
L
I
N
E
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)Sintered lter version
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]
223
Humidity/Temperature
Transmitters
AIR QUALITY
DWYER INSTRUMENTS, INC. | dwyer-inst.com
YEAR LIMITED
WARRANTY
MODEL CHART
Example RHP -2 D 1 A -LCD RHP-2D1A-LCD
Series RHP RH/passive temperature sensor transmitter
Accuracy 2
3
5
2% accuracy
3% accuracy
5% accuracy
Housing
Type
D
O
S
R
Duct mount with plastic hydrophobic lter
OSA (outside air)
OSA with sintered lter*
Radiation shield
RH Output 1
2
3
4-20 mA
0-10 V
0-5 VDC
Temperature
Sensor
0
1
2
3
A
B
C
D
E
F
None
4-20 mA
0-10 VDC
0-5 VDC
10K @ 25°C thermistor type III
10K @ 25°C thermistor type II
3K @ 25°C thermistor
100 Ω RTD DIN 385
1K Ω RTD DIN 385
20K Ω @ 25°C thermistor
Options LCD
NIST
LCD display
NIST traceable calibration certicate
*Use OSA with sintered lter models when purchasing Series RHRS radiation shield
separately.
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
AirQuality_2021.indb 223 7/15/20 12:18 PM