Sutron Xpert2, Руководство по эксплуатации и обслуживанию

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information. If the unit is configured under the COMS (SSP/CL) menu to send data at an
ALARM interval (anything other than 00:00:00) the unit will continue sending out that data.
Note: Iridium and GPRS devices are not managed under the COMS (SSP/CL) menu, and are not
subject to the ALARM interval.
Hi Alarm Go into alarm if the input value is > Hi Limit + deadband
Go out of alarm if the input value is < Hi Limit – deadband
Low Alarm Go into alarm if the input value is < Low Limit – deadband
Go out of alarm if the input value is > Low Limit + deadband
Rate Of
Change
Alarm 1. When ROC Mode is set to Off, no ROC alarm test occurs.
2. When ROC Mode is set to Hi, the system goes into alarm if the
change in input value is > ROC Mag + deadband. The system goes out
of alarm when the change in input value is < ROC Mag – deadband.
3. When ROC Mode is set to Low, the system goes into alarm if the
change in input value is < ROC Mag - deadband. The system goes out
of alarm when the change in input value is > ROC Mag + deadband.
4. The change in input value is computed in one of two ways, depending
on the state of Fixed Interval. If Fixed Interval is checked, the change in
input is calculated as the absolute value of the difference between the
current value and the last value.
If Fixed Interval is not checked, the change in input is calculated as the
absolute value of the difference between the current value and the last
value that caused a ROC Alarm to occur. Since no alarm has occurred
on the start of recording, the first reading taken after the press of
START recording (Or power up) is used as the basis to determine ROC
alarm, once the unit goes into alarm, the alarm value becomes the basis
for the next alarm.