Power Line Noise Issues with Ground Fault Protection Equipment

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...

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How do I set up my GPT for a RTD sensor?

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...

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Can I simulate a sensor call for heat?

Yes, you can simulate a sensor call for heat to test the system by putting a jumper between pins 1 and 2 of the class two terminal blocks, the system will respond as if the sensor were seeing snow conditions. The snow and heat indicators will come...

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EDH-4 Error Codes.

by David Mays | Jul 26, 2017 |

code, codes, display, EDH-4, EDH-4 FAQs, error, table, Troubleshooting

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The EDH-4 has five different error codes and they are as follows:

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ADH NETCOM Pressure Reporting, Lost Communication Fix

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En-Lightening APS-4C and SC-40C

Environmental Technology Inc.'s David Mays shares his insights on specific or unanticipated situations end users encounter with their ETI products. Here he illuminates the tricky mix of APS-4C and SC-40C status lights and system operations.

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Five Items for Troubleshooting ETI Products

ETI Troubleshooting Kit
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Troubleshooting the SIT-6E Snow Sensor

Environmental Technology Inc. demands the most and the best out of the products it manufactures and distributes. In a less than perfect world, however, less than ideal situations occur.

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Troubleshooting Manual for ADH-3COM and ADH-2A COM Automatic Air Dehydrators

by Chuck Gartland | Dec 21, 2011 |

ADH-2A COM, ADH-3COM, Troubleshooting

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This manual presents and explains troubleshooting procedures for ADH-2A COM and ADH-3COM Automatic Air Dehydrators. It begins with a schematic diagram of the internal components (the same diagram for both models), then presents text and photographs...

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