NIEUWKOOP EC1200, Руководство пользователя

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EP1300
EC-METER EC1200 AND PH-METER PH1200
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14
Sensitivity calibration
Switch-on the meter and dip the sensor into the standard solution.
[S.CAL] push the key for 3 seconds.
It appears the D1.2 display and message
Sens Cal
alternate to the EC value.
Allow the EC value stabilization.
[SHIFT] push the key to read the memorized standard solution value.
[ENTER] push the key for 3 seconds to confirm the standard solution value.
If the new value is out of the accepted limits the display will show the error message
Sens err
If the new value is accepted, the display will show the message
Last cal
for few seconds and then it
proposes to register the date by the flashing cursor under last digit.
XX / XX / XX
[INCR] push the key to modify the last digit if necessary
[SHIFT] push the key to position the cursor on the other digit to be modified with same procedure.
[ENTER] push the key for 3 seconds to confirm the date value.
The message
Update
indicates the new calibration values have been memorized.
This date value will be shown when switching ON the meter and when ending the next zero or
sensitivity calibration so to be modified with the new date.
If the memorized standard solution value doesn’t correspond to the buffer solution used for the
calibration, proceed as follow:
[SHIFT] push the key to read the memorized standard solution value with the flashing cursor under the
digit
XX.XX mS
(or µS)
[INCR] push the key to modify the last digit if necessary
[SHIFT] push the key to position the cursor on the other digit to be modified with same procedure.
[ENTER] push the key for 3 seconds to confirm the adjusted value.
At this point the procedure is same as the above procedure with the recognized standard solutions.
In many applications it is enough to frequently perform only the sensitivity calibration by using the
standard solution close to the measuring value in the process, and the zero check/calibration
periodically.
Note:
The sensitivity reset to factory calibration can be done from the main display:
[S.CAL] push the key for 3 seconds.
It appears the D1.1 display and message
Sens Cal
alternate to the EC value
[SHIFT] + [INCR] push the two keys for 3 seconds to read the messages
RES Sens
and the
message
Last cal
for few seconds and then it proposes to insert the date by the flashing cursor
under last digit.
XX / XX / XX
[INCR] push the key to modify the last digit if necessary
[SHIFT] push the key to position the cursor on the other digit to be modified with same procedure.
[ENTER] push the key for 3 seconds to confirm the date value.
The message
Update
indicates the values have been memorized.