RHP Humidity and Temperature Transmitter

RHP Humidity and Temperature Transmitter

Series RHP Humidity/Temperature Transmitter

Passive Temperature Outputs, Sintered Filter Options

The Series RHP Temperature and Humidity Transmitter combine the voltage or current humidity transmitter output with a passive temperature thermistor or RTD output. Featuring polymer capacitance humidity sensors, models are available in 2%, 3% or 5% accuracies. Duct mounted transmitters are available with an optional two-line alpha numeric LCD display.

For models with resistive thermistors or RTD outputs, please click here for temperature to resistance lookup tables.

Application Note:

• For duct mount installations, the sintered filter option should be ordered for applications where the humidity transmitter is mounted in the supply air duct after the fan and cooling coils.

Product 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 to 90% RH @ 25°C;RHP-3XXX ±3% 20 to 80% RH @ 25°C;RHP-5XXX ±5% 20 to 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 to 20 mA Loop Powered Models:Power requirements: 10 to 35 VDC; Output signal:4 to 20 mA.
• 0-5/10 V Output Models:Power requirements: 15 to 35 VDC or 15 to 29 VAC; Output signal: 0 to 10 V @ 5 mA max.
• Solid State Band Gap Temp 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:Types 1, 2, 3: Solid state band gap;
• Curves A,B,C; Thermistor;
• Curves D,E; Platinum RTD DIN 385. (See R-T Lookup Table).
• 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.

Features

• 2%, 3%, or 5% accuracy models
• Optional LCD display on duct mount models
• Radiation shield option for outdoor installation in direct sunlight

Accessories

Model NumberDescription

• RHRS6 plate solar radiation shield for sintered filter version RH transmitters.
• A-RHP-MReplacement HDPE plastic sintered filter, 1/4" NPT female.

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