Walchem WebAlert WA500, Инструкция по эксплуатации

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Custom Name
You may give the level input a custom name by typing it in the text box.
Present Value
This displays the current level in that container.
Present mA
This displays the mA output of the level transmitter, before it is converted into a volume, distance or
other engineering units. This is helpful for troubleshooting.
Status
This displays current status of the input. Possible status messages for level transmitters are; Normal
(everything is OK), Sensor Error (the sensor signal is not valid), Over Range (between 20 and 21 mA),
Under Range (between 3.9 and 4.0 mA), Low Alarm or High Alarm.
4 mA =
Type into the text box the engineering unit value that corresponds to a 4 mA signal.
20 mA = (Max. Capacity)
Type into the text box the engineering unit value that corresponds to a 20 mA signal
Units
Type into the text box the units of measured desired.
Low Alarm Limit
Type into the text box the Level at which you want a low alarm to occur. You must go to the Alarm
page to specify that this alarm condition is a critical alarm in order to close the alarm relay or send an
email.
High Alarm Limit
Type into the text box the Level at which you want a high alarm to occur. You must go to the Alarm
page to specify that this alarm condition is a critical alarm in order to close the alarm relay or send an
email.
Low-Low Alarm Limit
Type into the text box the Level at which you want a low-low alarm to occur. You must go to the
Alarm page to specify that this alarm condition is a critical alarm in order to close the alarm relay or
send an email.
High-High Alarm Limit
Type into the text box the Level at which you want a high-high alarm to occur. You must go to the
Alarm page to specify that this alarm condition is a critical alarm in order to close the alarm relay or
send an email.
Alarm Dead Band
Type in the text box the dead band to be used for each alarm set point.
Damping
Damping is applied to the input by taking a running average of the readings of the input signal over the
time frame specified by the damping setting (0-60 seconds)
.
The averaged reading is displayed and used
for control. Type in the text box the desired time frame.