Dual Isolator - DI739

Dual Isolator - DI739

The DI739 combines two fully independent isolator channels in one housing.

The inputs are factory configured to customer requirement. Both outputs are coding plug configurable for common process signals (Factory default is 4-20mA out). Final calibration can be trimmed by using the front accessible SPAN (S) and ZERO (Z) potentiometers. The optional alarm point on channel 2 is also set by potentiometer utilising the adjacent test socket.

The wide swing DC/DC converter allows for two power supply ranges: 10-60Vdc (16-42Vac), 80-280Vac (80-300Vdc). Isolation is 2kVr.m.s. between all 6 ports. Connection is via unpluggable screw 8-way terminals.

The DI739 can be used in a number of ways:

• Two channel isolation and any mix of signals.
• Isolation and conditioning of two field sensors.
• Signal splitting (one input and two isolated outputs).
• Range splitting where output 1 responds to 0-50% of input, output 2 to 50-100% of input.

Inputs

ac Voltage

dc Current/Voltage

mV

Potentiometer

Resistance

RTD

Speed/Frequency

Temperature

Thermocouple

Functions

Alarm/Transmitter

Isolator

Transmitter

Outputs

dc Current/Voltage - Separate Power

Relay