Function
The Heater Monitor module uses an auxiliary relay operated by output from the base unit
to energize the heater at pre-set intervals. Current to the heater is then measured and
when the current is outside the ranges specified by the customer, an alarm is
generated. Users may set the module to test heaters on a regular basis to evaluate
their current functional state.
The Heater Monitor module can access the temperature reading from the base unit to
operate up to four tank heaters. Both thermostatically and non-thermostatically controlled
heaters are constantly monitored. The relay is wired in parallel to the existing
thermostat in order to energize the heater.
Features