TR-RH2W 2 Wires Humidity Transmitter Instruction Manual

TR-RH2W 2 Wires Humidity Transmitter

Product Information

Specifications:

• Humidity Measurement Range: 10% to 95% RH
• Signal Output: 4 – 20 mA
• Humidity Sensor Type: High-precision capacitance type sensor
• Power Supply: DC 9V to 30V
• Wire Configuration: 2 wires for both signal and power supply
• Accuracy:
  • 70% R.H.: <1%
  • < 70% R.H.: <5%
• Load Impedance Requirement: Up to 500 ohms
• Operating Temperature: 0 to 50°C (32 to 122°F)
• Operating Humidity: Less than 95% RH
• Size: 200 x 23 x 19 mm (7.9 x 0.9 x 0.7 inch)
• Weight: 75 g (0.16 LB)
• Cable Length: Approximately 1.2 m
• Wire Connection: Red wire for Power + and Signal, Black wire for Power –

Product Usage Instructions

Front Panel Description:

• Humidity Sensing Head
• Probe Main Body
• Signal and Power Supply Wires
• Probe Holder

Operation Procedures:

1. Using the two screws, fix the Probe Holder on the wall.
2. Mount the Probe Main Body to the Probe Holder.
3. Use the two wires as signal and power supply wires.

Wires Installation:

Humidity Transmitter TR-RH2W:

• Black Wire: Power Supply –
• Red Wire: Power Supply +, 9V to 30VDC

Calibration Consideration:
Each transmitter is fully calibrated before shipment; zero and span adjustments are not necessary for measurement.

Frequently Asked Questions (FAQ):

• Q: Do I need to calibrate the transmitter before use?
  A: No, each transmitter is fully calibrated before shipment, so calibration is not required before measurement.

• Q: What is the humidity measurement range of the transmitter?
  A: The humidity measurement range is from 10% to 95% RH.

FEATURES

• Two wires 4 to 20 mA humidity transmitter, easy operation.
• 2 wires, both for signal and power supply.
• High precision capacitance type humidity sensor.
• Protection for the reverse wires connecting.
• Use the ” two wires, 4 to 20 mA humidity transmitter ” can cooperate with the optional controller/Indicator or the datalogger system.

SPECIFICATIONS

General Specification

10 %RH = 5.6 mA

50 %RH = 12 mA

95 %RH = 19.2 mA

Humidity sensor| High precision capacitance type humidity sensor.
Power Supply| DC 9V to 30 V

• Protected against reverse polarity

Wire numbers| 2 wires, both for signal and power supply.
Accuracy| ≧ 70 %R.H. :

± (3% reading + 1% R.H.)

<70 %R.H. :

± 3%R.H.

Operating

Temperature

| 0 ℃ to 50 ℃

( 32 ℉ to 122 ℉ ).

Operating Humidity| Less than less than 95% RH.
Size| 200 x 23 x 19 mm

( 7.9 x 0.9 x 0.7 inch ).

Weight Cable length| 75 g ( 0.16 LB ).

Approx. 1.2 m.

Wire Connection| 2 wires :

Red……………….. Power + and signal

Black……………… Power –

Standard accessories| Instruction manual……………… 1 PC

Probe holder………………………. 1 PC

Screws ( for fixing the probe

holder )…………………. 2 PCs

Electrical Specification ( 23±5 ℃)

Accuracy| ≧ 70 %R.H.:

± (3% reading + 1% R.H.)

<70 %R.H.:

---|---
± 3%R.H.

Checklist of input (% RH) and the output (4 – 20 mA)

FRONT PANEL DESCRIPTION

• 3-1 Humidity sensing head
• 3-2 Probe main body
• 3-3 Signal and power supply wires
• 3-4 Probe holder

OPERATION PROCEDURES

1. Using the two screws to fix the ” Probe holder ” ( 3-4, Fig. 1 ) on the wall Mount the ” Probe main body ” ( 3-2, Fig. 1 ) to the ” Probe holder ” ( 3-4, Fig. 1 ).
2. Use the two wires ( 3-3, Fig. 1 ) as signal and power supply wires.

The general wire installation will be as follows:

Calibration (zero/span adjustment) consideration:
Each transmitter had been fully calibrated before shipment, zero and span adjustment are not necessary before measurement.

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