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Series RHP Humidity/Temperature Transmitter

Brand: Dwyer Instruments, LLC
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The Series RHP Temperature and Humidity Transmitter combine the voltage or current humidity transmitter output with a passive temperature thermistor or RTD output.

The polymer capacitance humidity sensor is not affected by condensation, fog, high humidity, or contaminants. 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.
Features
  • 2%, 3%, or 5% Accuracy Models
  • Optional LCD Display on Duct Mount Models
  • Radiation Shield Option for Outdoor Installation in direct sunlight
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The Series RHP Temperature and Humidity Transmitter combine the voltage or current humidity transmitter output with a passive temperature thermistor or RTD output.

The polymer capacitance humidity sensor is not affected by condensation, fog, high humidity, or contaminants. 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.
Features
  • 2%, 3%, or 5% Accuracy Models
  • Optional LCD Display on Duct Mount Models
  • Radiation Shield Option for Outdoor Installation in direct sunlight
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Specifications

Brand

Accuracy

  • RH: ± 2 % at 25° C
  • RH: ± 3 % at 25° C
  • RH: ± 5 % at 25° C
  • RTD, DIN Class B, ± 0.3° C at 0° C (± 0.54° F @ 32° F)
  • Solid State Band Gap: ± 0.3° C at 25° C (± 0.9° F at 77° F)
  • Thermistor: ± 0.2° C at 25° C (± 0.36° F at 77° F)

Approvals & Certifications

  • CE

Compensated Temperature

  • -20° to 60° C (-4° to 140° F)

Conduit Connection

  • 1/2” NPSM

Display

  • Duct Mount Only Optional 2-Line Alpha Numeric, 8-Characters/Line
  • LCD Display

Electrical Connectors

  • Removable Screw Terminal Block

Enclosure, Body Material

  • PBT - Duct Mount
  • Polycarbonate

Environmental Protection

  • IP66
  • NEMA 4X

Humidity

  • 0 to 100 % Relative Humidity

Hysteresis

  • ± 1 %

Loop Resistance

  • 4-20 mA

Mounting

  • Duct Mount

NACE & NIST

  • NIST Traceable Calibration Certificate

Operating Temperature - Sensor

  • -28.9° to 60° C (-20° to 140° F) - Switch Selectable

Output

  • 0-10 V at 5 mA - Max.
  • 0-5 Vdc
  • 4-20 mA

Power Requirement

  • 10-35 Vdc
  • 15-29 Vac
  • 15-35 Vdc

Repeatability

  • ± 0.1 %

Resolution

  • RH: 0.1 %
  • RH: 0.1° C (0.1° F)

Response Time

  • 15 seconds

Sensor / Probe Material

  • Capacitance Polymer

Sensor / Probe Type

  • RH
  • RTD - DIN 385 (100 ohms, 1 kiloohms)
  • Thermistor - 10 Kilo (Typical II & III), 3 Kilo, 20 kiloohms

Storage Temperature

  • -40° to 80° C (-40° to 176° F)

Temperature Range

  • -40° to 60° C (-40° to 140° F)

Thermal Drift

  • < 1 % Relative Humidity/Year
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Typical Applications

  • Air Economizers
  • Outdoor Temperature and Relative Humidity Reference
  • Pool Room Humidity Monitoring
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