Instruction manual

Trigger Function

B. Shorting the trigger input

1. Set the power switch on the side of the unit to OFF and connect the trigger cable.

2. When the connection has been established, set the power switch to ON and use the

SETUP menu screen to select the setting "EXTRN" for the trigger function.

3. Use a 2.5 mm miniature phone plug and shielded cable, and configure the trigger

circuit as shown above.

4. When the relay contacts close, the trigger is activated and measurement starts.

Note

The shielded cable should be no more than 2.5 meters long.

The minimum interrupted current capacity of the contacts

should be 50 µA or less.

Do not connect the contacts to any other circuitry.

The circuit should be configured as a floating (ungrounded)

circuit.