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1 - Locked / Unlocked parameters: When this switch is ON, the timer parameters are
locked and can only be displayed (except clock time).
2 - 24HR / 12HR time: When this switch is ON, the display shows 24-hour time.
Otherwise, the display shows 12 hour time (AM / PM).
3 - ON: Start/Stop Time; OFF: Start/Running Time for Timer T1
4 - ON: Start/Stop Time; OFF: Start/Running Time for Timer T2
5 - ON: Start/Stop Time; OFF: Start/Running Time for Timer T3
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A flashing value on the display means that the value can be modified using the adjustment
knob. If the locked parameter switch (Dipswitch # 1) is in the ON position, no parameters can
be modified except the clock time. If after 10 seconds, no action is taken to modify a flashing
value, the display stops flashing and the timer returns to a display mode. If any changes were
made within this time period, they will be recorded in permanent memory.
The TC4-T30 has an internal clock used for programming the timer cycles. To display the
current time, turn the selection knob to the
the time is displayed in 12-hour format. In this case, the PM LED turns on to show PM time.
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Set the selection knob to the
you first turn the unit on, this value is flashing and continues to flash until both the
hours and the minutes have been correctly entered.
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Press the push-button. The hours start flashing.
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Use the adjustment knob to set the hours. If you are using 12-hour time, make sure
the PM LED is properly set.
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Press the push-button. The minutes start flashing.
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Use the adjustment knob to set the minutes.
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Press the push-button to save the new time setting. The seconds are reset to zero.
position. If the internal switch #2 is OFF,
position. The current time is displayed. When
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TC4-T30.rev.05
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