The GMR-32B acts as an active monitoring sentinel. It evaluates line metrics constantly and trips its internal relay mechanism immediately when any of the following failures are identified:
A: Yes. Connect L1 to one side of the heater, T1 to the other side. Neutral is not used. gmr32b phase controller manual
When S1-4 = ON and an external current transformer (CT) is installed on the load wire, the GMR32B adjusts firing angle to maintain load current proportional to the setpoint, compensating for input voltage fluctuations. The GMR-32B acts as an active monitoring sentinel
The controller provides asynchronous monitoring independent of the system load current, load nature, or circuit layout. Phase Reversal Protection Neutral is not used
Mount the unit vertically on a flat, non-flammable surface (such as a metal backpanel) to maximize natural convection.
When the ALARM LED flashes a repeating pattern, count the flashes:
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