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  3. 1-5V input method guide (UA20,RN400)
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  3. 1-5V input method guide (UA20,RN400)

1-5V input method guide (UA20,RN400)

Thank you for purchasing the DEKIST RN400 product.

✓ The corresponding sub-models are as follows.
  RN400-T2 CS (4-channel 4-20mA transmitter)
  UA20A (2-channel 4-20mA transmitter)
  UA20B (1 channel 4-20mA 12V Loop Power Transmitter)

The UA20A, UA20B, and RN400-T2-CS devices support 4-20mA of the sensor's output current. 12VDCResistance 150Ω을 이용 하여 1-5V output transmitter로 사용 할 수 있습니다.

The UA20A and RN400 T2CS use separate 12VDC and 150ohm resistors, and the UA20B can send a 12-150V output signal to the transmitter using the device's 1VDC output terminal and 5ohm resistor.

1. Using UA20A as a 1-5V Transmitter

1-1. 2-wire wiring

1. Prepare the power required for the transmitter.

2. Power + (Plus) Terminal and Transmitter + (Plus) Connect with the terminal.

3.Transmitter GND (minus) Terminal and Resistance 150ΩAfter connecting the UA20A + (Plus) Connect with the terminal.

4.UA20A GND (minus) Terminals and power GND (minus) Connect with the terminal.

Please refer to the wiring diagram below.

Connection diagram for using UA20A as a 1-5V transmitter (2-wire type)

1-2. 3-wire wiring

1. Prepare the power required for the transmitter.

2. Power + (Plus) Terminal and Transmitter + (Plus) Terminal and connection, power GND (minus) Connect it to the Transmitter GND (minus) terminal.

3. 1~5V output terminal and Resistance 150ΩAfter connecting the UA20A + (Plus) Connect with the terminal.

4.UA20A GND (minus) Terminals and power GND (minus) Connect with the terminal.

Please refer to the wiring diagram below.


Connection diagram for using UA20A as a 1-5V transmitter (3-wire type)

1-3. Setting environment in UA-Calibrator on PC

1. After running UA Calibrator on the PC, connect the UA20A by inserting it into the USB port of the PC.

2. If you want to display the minimum value in the 1-5V range of the transmitter when there is no output, change the input mode to 4~20mA instead of 0-20mA. (The scale is set to the minimum value.)

7. Set the scale value to the same range as the transmitter scale value.

UA20A UA-Calibrator setting screen

2. Using the UA20B as a 1-5V Transmitter

2-1. 2-wire wiring

1. Transmitter + (Plus) Terminal and UA20B 12V DC Output + (Plus) Terminal.

2.UA20B CH1 + (Plus) Terminal and Resistance 150ΩAfter connecting GND (minus) Connect with the terminal.

Please refer to the wiring diagram below.

Connection diagram for using UA20B as a 1-5V transmitter (2-wire type)

2-2. 3-wire wiring

1. Coming to the Transmitter + (Plus) Terminal and UA20B 12V DC output + (Plus) Connect with the terminal.

2. 1~5V output terminal and Resistance 150ΩConnect UA20B CH1 + (Plus) Connect with the terminal.

3. Transmitter GND (minus) Terminal and UA20B CH1 GND (minus) Connect with the terminal.


Connection diagram for using UA20B as a 1-5V transmitter (3-wire type)

2-3. Setting environment in UA-Calibrator on PC

1. After running UA Calibrator on the PC, connect the UA20B by inserting it into the USB port of the PC.

2. If you want to display the minimum value in the 1-5V range of the transmitter when there is no output, change the input mode to 4~20mA instead of 0-20mA. (The scale is set to the minimum value.)

6. Set the scale value to the same range as the transmitter scale value.

UA20B UA-Calibrator setting screen

3. Using RN400-T2CS as 1-5V Transmitter

3-1. 2-wire wiring

1. Prepare the power required for the transmitter.

2. Power + (Plus) Terminal and Transmitter + (Plus) Connect with the terminal.

3. Transmitter 1~5V Output terminal and Resistance 150ΩAfter connecting the RN400-T2-CS + (Plus) Connect with the terminal.

4.RN400-T2-CS GND (minus) Terminals and power GND (minus) Connect with the terminal.

Please refer to the wiring diagram below.

RN400 T2CSWiring diagram for use as a 1-5V transmitter (2-wire type)

3-2. 3-wire wiring

1. Prepare the power required for the transmitter.

2. Power + (Plus) Terminal and Transmitter + (Plus) Connect with the terminal.

3. Transmitter 1~5V Output terminal and Resistance 150ΩAfter connecting the RN400-T2-CS + (Plus) Connect with the terminal.

4.Transmitter GND (minus) Terminal is power GND (minus) Connect with the terminal.

5.RN400-T2-CS GND (minus) Terminals and power GND (minus) Connect with the terminal.

Please refer to the wiring diagram below.


Wiring diagram for using RN400 T2CS as 1-5V transmitter (3-wire type)

3-3. Setting environment in UA-Calibrator on PC

1. Entering RN400 Calibration Mode

2. If you want to display the minimum value in the 1-5V range of the transmitter when there is no output, change the input mode to 4-20mA instead of 0-20mA. (The scale is set to the minimum value.)

3. Set the scale value to the same range as the transmitter scale value.

RN400 T2CS UA-Calibrator setting screen
Updated on January 2023, 7

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