by Joe Hektor | Oct 31, 2017 | FPT 130 FAQs, GPT 130 FAQs, GPT 230 FAQs, Troubleshooting
Due to the high sensitivity of ground-fault-current detection circuits, it is possible that excessive line noise on the power source wiring can cause an alarm. This can occur in the form of a ground-fault alarm, a stuck-relay alarm, or a ground-fault circuit alarm....
by Joe Hektor | Aug 2, 2017 | GPT 130 FAQs, GPT 230 FAQs, Troubleshooting
The GPT unit comes with a thermistor (two thermistors with the GPT 230) but is also compatible a 2-, 3-, or 4-wire RTD sensor. The diagram illustrates the correct wiring and DIP switch configuration for each temperature sensor wiring scheme. It is important that you...
by David Mays | Mar 7, 2014 | Control, Controller, Featured, Sensors, snow melting management, Troubleshooting
Everything—and everybody—needs to be looked after once in a while. Even Environmental Technology Inc. sensors, controllers or control panels are susceptible to the rigors of their, ahem, environments. Invariably, scrounging in parts inventories or running to the local...
