Setra Systems DATUM 2000, Руководство по эксплуатации

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11
6.0 HI/LO alarm setpoints
(please read before attempting procedure)
Note: The channel must be calibrated before the alarm points are set.
The "ALAr" command allows you to set high and low pressure alarm points. The HI
alarm or LO alarm indicator light is lit if the applied pressure exceeds the set values.
The alarm output signals are available at the terminal strip. To set the Hi alarm and
Lo alarm, use the following procedure:
Step 1.
Press and hold the SCAN/adj and HOLD/mode keys for 8 seconds, then release; the
display will alternate between "cal" and "noYes" for ten seconds.
Step 2.
To specify "yes" and select "CH1", press and hold the HOLD/mode key to display
"CH1". (To select "CH2": With "CH1" displayed, press and release the SCAN/adj key
to display "CH2")
Step 3.
Press the HOLD/mode key to display "ALAr".
Step 4.
Press the
HOLD/mode
key to display the present value of the low alarm point.