Manual

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Current
The GFEP current setting can be increased from its factory set 30 mA value to 120 mA in
30 mA steps. The higher current settings serve the special purpose of eliminating spurious GFEP
tripping. Accessing this function was made intentionally difficult to prevent its casual use. The
DIP switch settings follow:
60 mA GFEP Setting
Pole 1 2 3 4 5 6
Setting NC NC On Off --- ---
90 mA GFEP Setting
Pole 1 2 3 4 5 6
Setting NC NC Off On --- ---
120 mA GFEP Setting
Pole 1 2 3 4 5 6
Setting NC NC On On --- ---
Constant Wattage Heater Mode
The GPT–3 provides a special operating mode for checking the continuity of constant
wattage heaters. The DIP switch setting is shown below:
Constant Wattage Heater Setting
Pole 1 2 3 4 5 6
Setting NC On NC NC --- ---