WIRING (continued)
4-20mA POWERED (ACTIVE) CALIBRATOR WIRING
The relay function list below is the default, but one can reassign the relay outputs to suit the requirements of the
installation. K4 & K5 (TB4) are optional relays and are not typically installed.
The relay contacts are “dry” (potential free), so the load power supply is external, see the example circuit above.
If
the load is inductive, add a snubber (RC) circuit across the relay contact terminals to greatly extend the life
of the relay contacts.
One can also connect the snubber across the load, which is typically more convenient, in
lieu of the contacts, as shown above.
AC POWER WIRING
Summary of Contents for GD-1000
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