MPR
E-S
CAN
OPERATION
/
CALIBRATION
Measurement
Alarm
High:
If the measurement exceeds this limit, a system alarm is activated.
An error message will appear in the status window in normal mode, and the high measurement
alarm relay will be turned on.
Measurement
Alarm
Delay:
This is the alarm delay time in seconds for the process
measurement that must expire while a limit is exceeded before an error is activated.
Temperature
Alarm
Low:
If the temperature falls below this limit, a system alarm is activated.
An error message will appear in the status window in normal mode, and the low temperature
alarm relay will be turned on.
Temperature
Alarm
High:
If the temperature exceeds this limit, a system alarm is activated.
An error message will appear in the status window in normal mode, and the high temperature
alarm relay will be turned on.
Temperature
Alarm
Delay:
This is the alarm delay time in seconds for the process temperature
that must expire while a limit is exceeded before an error is activated.
Purge
Cycle
Time
: This is the time interval in minutes between automatic purging. During
purging, all system readings and analog outputs are frozen. A “0" setting disables automatic
purging.
Condensate
Drain
Time:
When the purge cycle is activated, this is the time in seconds that
elapse before a prism clean occurs. During this time the condensate drain relay is activated and
condensation is allowed to drain before steam cleaning.
Prism
Clean
Time
: This is the time in seconds during which cleaning of the prism occurs and
the prism clean relay is activated.
Page 2 contains the following limits:
Hold
Delay
Time
: This is the time in
seconds that elapse after a prism clean
occurs. This time allows a delay to
occur before resuming normal process
measurement.
Meas.
Anlg.
Min.
Output:
This is the
measurement reading that will
produce a 4 mA or 10 volt output.
Meas.
Anlg.
Max.
Output:
This is
the measurement reading that will
produce a 20 mA or 10 volt output.
Calibration Limits Screen 2
2-11
