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nVent.com/RAYCHEM RAYCHEM-OM-EU2032-NGCUIT3EX-EN-2203
This window configures the Safety Limiter (if available) temperature.
Fig. 3.19 Setup | Safety Limiter window
The Safety Limiter temperature setpoint that the NGC-20 is currently configured.
Set the New Safety Limiter Setpoint to the desired value. If the Limiter’s RTD temperature exceeds this value, the relay output is turned
off and will not turn on until the Limiter’s RTD temperature is below this setpoint and the alarm is cleared.
Range: –60°C (–76°F) to 599°C (1110°F)
Default: 300°C (572°F)
For the NGC-20 to accept the New Safety Limiter Setpoint, the black limiter button on the display board must be pressed and held
down until the new value is successfully sent. A message will pop up stating “Safety Limiter Setpoint has been updated successfully”.
The Safety Limiter Timeout entry is the amount of time that the UIT will allow the user to complete the above.
Range: 1 second to 3600 seconds
Default: 60 seconds
Initiates the process of updating the Safety Limiter Setpoint. When pressed, a countdown timer will display, counting down the time
remaining to complete the New Safety Limiter Setpoint process.
When pressed, this will manually force the Safety Limiter to trip.
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