KROHNE OPTISENS PAS 2000 EN - Manual (Page 24)

5
OPERATION
24
OPTISENS PAS 2000
www.krohne.com 11/2008 • MA PAS 2000 R04 en
Menu "Cleaning"
Menu "Scale / Alarm"
Menu "System"
5.3 Calibration
The sensor is shipped pre-calibrated, but since all electrodes are different, the sensor must be
calibrated with its electrode to give a good measurement. The electrode degrades by time and
calibrations shall be done regularly following a maintenance schedule.
Submenu Description
Press ^ to go to the cleaning program
Cleaner Cleaner Cleaner Cleaner "None", "Flush" or "Brush". Do not select "Brush" since this does not exist for this
sensor.
Interval min Interval min Interval min Interval min 0...999 minutes, time between cleaning cycles.
Length sec Length sec Length sec Length sec 0...999 seconds, duration of flushing cycle.
Freeze sec Freeze sec Freeze sec Freeze sec 0...999 seconds, extra freeze time of output signal after a flushing cycle.
Relay Relay Relay Relay "-", "1", "2", "Along 1" or "Along 2". Select relay to operate solenoid for flush cycle if
this sensor is a master with its own relay, or relay used by master if this sensor is a
slave. These are the same relays used for "Alarm relay"
"Alarm relay" "Alarm relay" "Alarm relay" below.
Next time Next time Next time Next time The next scheduled cleaning time. Pushing ^ on this line will set the time to current
time and start a cleaning cycle. This could be used to test the "Flush" cycle.
Submenu Description
Max Max Max Max Measured value corresponding to 100 %, equal to 20 mA output signal (or 4 mA if 20-
4 mA is used).
Min Min Min Min Measured value corresponding to 0 %, equal to 4 mA output signal (or 20 mA if 20-4 mA
is used).
Hi-Alarm Hi-Alarm Hi-Alarm Hi-Alarm Level that activates an alarm when exceeded, 0 = not in use.
Low-Alarm Low-Alarm Low-Alarm Low-Alarm Level that activates an alarm when underpassed, 0 = not in use.
Alarm Relay Alarm Relay Alarm Relay Alarm Relay "-", "1", "2" or ”1 and 2”. Check that the relay is not being used for cleaning.
Submenu Description
Type Type Type Type Type of sensor, read only.
Serial Serial Serial Serial Serial number of the sensor, read only.
SoftW SoftW SoftW SoftW Software version of the sensor, read only.
Press ^ to go to "info" read only menu. This menu is for KROHNE internal use.
Info Info Info Info
RV 0 mV Raw value for 0 mV.
RV 1000 mV Raw value for 1000 mV.
Ch1 Raw value.
ORP mV Current reading in millivolt.
Samp/s Number of samples per second.
Service Service Service Service Not accessible for users.
.book Page 24 Friday, November 28, 2008 2:32 PM