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HDXXX Temperature Transmitter

Brand: Delta OHM S.R.L.

These are 4÷20 mA configurable transmitters with microprocessor for Pt100 Platinum temperature sensor.

 They convert the temperature variations found with any standard Pt100 sensor (100Ω at 0°C) into a linear current signal with two leads in the field 4÷20 mA. 

Linearization with a digital technique allows excellent precision and stability to be obtained. 

User can set the 4÷20 mA output (or 20÷4 mA) in any temperature range within the field -200...+650°C, with a minimum amplitude of 25°C; it may be simply reprogrammed by pressing a key, without any need to regulate jumpers, potentiometers, software, etc. 

A led indicates any alarm situations (temperature outside the set range, broken or short-circuiting sensor) and assists the user in the programming phase. 

The 4÷20mA output of models HD788TR1-I and HD988TR1-I is galvanically isolated from the Pt100 input. 

The transmitters are also protected against inversions of polarity.

1 - 7 of 7 Part Numbers
HD786TR1
HD786TR1
HD988TR1 – Temperature Transmitter
4÷20 mA/20÷4 mA temperature transmitter for 3 wires Pt100 sensor configurable in the range -200...+650°C with minimum amplitude range 25°C. Suitable for wall mounting
HD786TR2
HD786TR2
HD988TR1 – Temperature Transmitter

4÷20 mA/20÷4 mA temperature transmitter for 3 wires Pt100 sensor configurable in the range -200...+650°C with minimum amplitude range 25°C. Suitable for wall mounting

HD788TR1
HD788TR1
HD988TR1 – Temperature Transmitter
4÷20 mA/20÷4 mA  temperature transmitter for 2 or 3 wires Pt100 sensor  configurable in the range -200...+650°C with minimum amplitude range 25°C, in a container for DIN B 43760 heads
HD788TR1-I
HD788TR1-I
HD988TR1 – Temperature Transmitter
4÷20 mA/20÷4 mA temperature isolated transmitter for 2 or 3 wires Pt100 sensor configurable in the range -200...+650°C with minimum amplitude range 25°C, in a container for DIN B 43760 heads.
HD988TR1
HD988TR1
HD988TR1 – Temperature Transmitter
4÷20 mA/20÷4 mA temperature transmitter for 2 or 3 wires Pt100 sensor configurable in the range -200...+650°C with minimum amplitude range 25°C, in a container for 35 mm DIN rail connection
HD988TR1-I
HD988TR1-I
HD988TR1 – Temperature Transmitter
4÷20 mA/20÷4 mA temperature isolated transmitter for 2 or 3 wires Pt100 sensor configurable in the range -200...+650°C with minimum amplitude range 25°C, in a container for 35 mm DIN rail connection.
HD988TR2
HD988TR2
HD988TR1 – Temperature Transmitter
4÷20 mA/20÷4 mA temperature transmitter for 2 or 3 wires Pt100 sensor configurable in the range -200...+650°C with minimum amplitude range 25°C, in a container for 35 mm DIN rail connection, dimension 2 modules, with 3½ digit LCD.
1 - 7 of 7 Part Numbers

Specifications

Sensor

  • Pt100 - 100 Ω at 0° C

Connection

  • 2 or 3-Wire

Measurement Range

  • -200° C to 650° C

Operating Temperature

  • -20° C to 70° C

Output

  • 4-20 mA
  • 20 to 4 mA
  • 22 mA

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