SIGRIST AquaScat SG, Инструкция по эксплуатации

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Settings Instruction Manual ScrubberGuard
14830E/1 63
8.3.1 Upper and lower threshold value of a limit
A maximum of eight limits with upper and
lower threshold values can be programmed.
If the operating mode is set to Exceeded ,
then while the upper threshold value is ex-
ceeded the limit is active and remains active
until the lower threshold value is again un-
dershot.
If the operating mode is set to Undershot ,
then while the lower threshold value is un-
dershot the limit is active and remains active
until the upper threshold value is again ex-
ceeded.
Figure 27: Diagram of limit exceeded

Measuring value

Upper threshold value

Lower threshold value

Time

Limit active

Limit passive
8.3.2 Reading if limit exceeded or undershot
If a limit event occurs during operation, it has the fol-
lowing effects on measuring operation:

Threshold value display indicates an unusual
state.

If an output for the corresponding limit channel
is programmed, it is switched.
If the message Limit appears, the color of the status
display changes to white and the numbers of the
limit channels are listed with their channel numbers
in
red if limits have been exceeded or undershot.
Inactive limits are indicated with " _ ".