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industrial heat tracing solutions
EN-RaychemNGC30UIT2Programming-AR-H5818602/16
3.3.11 SETUP | MAINT. WINDOW
This window configures the maintenance schedule.
Fig. 3.17 Setup | Maint. window
Power Cycle Start Time Entry Field
After entering a start time, the Power Cycle test feature turns on the heat tracing for a one-minute
period each day starting at the indicated time. If the heater system is damaged during a season
when the system would normally be turned off, the daily Power Cycle test can help detect the
problem within 24 hours. This is particularly helpful in warm months when heat tracing may not
be energized.
Range: Any time selected from the 24-hour clock (00:00–23:59, where 00:00 is off)
Power Cycle Test Interval Entry Field
The default interval is 24 hours. The example in the window above schedules a one-minute test
every morning at 6:00 a.m. Other entries are possible, but multiples of 24 hours are recommended
to preserve the predictable start-time. For instance, 48 hours will run the test at 6:00 a.m. every
other day. 168 hours will run the test once a week starting with the first occurrence of 8:01 a.m. after
the set-up procedure and once a week thereafter. To run the test twice a day, enter 12 hours etc.
Range: 1–1000 hours
Default: 24 hours
Heater Time Alarm Entry Field
This entry is used to create a heater inspection maintenance schedule. Enter the number of
hours the heater can be energized before inspection and testing is due. The NGC-UIT2 tracks the
accumulated “on” time for each heater circuit and generates an alarm message and advises that
heater maintenance is due.
Range: 1–1,000,000
Default: 100,000
Relay Cycle Alarm Entry Field (For EMR type devices only)
This entry is used to create a contactor inspection maintenance schedule. Enter the number of
times that contactors can be cycled on/off before inspection and testing is desired. The NGC-UIT2
tracks the accumulated number of on/off switches for each contactor and generates an alarm
message to advise that contactor maintenance is due.
Range: 1–2,000,000
Default: 500,000
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