KROHNE OPTISENS AAS 2000 EN - Manual (Page 23)

OPERATION
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OPTISENS AAS 2000
www.krohne.com 12/2008 • MA AAS 2000 R01 en
Menu "Calibrate"
Menu "Cleaning"
Menu "Scale / Alarm"
Submenu Description
Airpres.mB Airpres.mB Airpres.mB Airpres.mB Specify within 10 mBar.
Calibrate Calibrate Calibrate Calibrate "No", "Zero" or "Air". Select what calibration to do.
Temp(info) Temp(info) Temp(info) Temp(info) Shows actual temperature in the electrode.
Test(info) Test(info) Test(info) Test(info) Shows actual dissolved oxygen level.
Setvalue Setvalue Setvalue Setvalue Theoretical reading in air at current temperature and with the air
pressure entered above. Shall be the same as Test
Test Test Test immediately after
the calibration.
Slope Slope Slope Slope Slope of the electrode at last air calibration.
This value is an indication of the wearing of the electrode and it is
normally over 80 for a well functioning electrode. However, an
electrode may also function well at lower values. At values below 50 it
is recommended to replace the electrode.
Calibrated Calibrated Calibrated Calibrated Date of last air calibration.
New electr. New electr. New electr. New electr. Date when electrode was last changed. Push ^ to edit the date, then
^ again to store it.
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 (only for master).
Interval min Interval min Interval min Interval min 0...999 minutes, time between cleaning cycles (only for master)
Length sec Length sec Length sec Length sec 0...999 seconds, duration of flushing cycle (only for master)
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 (only for master).
Submenu Description
Max Max Max Max 0...99.9 mg/l, equal to 20 mA output signal.
Min Min Min Min 0...99.9 mg/l, equal to 4 mA output signal.
Hi-Alarm Hi-Alarm Hi-Alarm Hi-Alarm 0...99.9 mg/l, the value zero inactivates the alarm.
Low-Alarm Low-Alarm Low-Alarm Low-Alarm 0...99.9 mg/l, the value zero inactivates the alarm.
Alarm Relay Alarm Relay Alarm Relay Alarm Relay "-" "1", "2", or "1 and 2". Check that the relay is not being used for
cleaning.
.book Page 23 Monday, December 15, 2008 12:43 PM