wtw inoLab Multi 9310 IDS, Руководство по эксплуатации

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inoLab
®
Multi 9310 IDS Dissolved oxygen
ba75937e10 08/2021
49
7.2.2 When should you check the sensor?
Checking can be useful in the following cases:
 When the check interval has expired
(the [check] status indicator is displayed).
 If the measured values seem to be implausible
 If you assume that the sensor cap is contaminated or at the end of
its lifetime
 After the sensor cap was exchanged
 Routinely within the framework of the company quality assurance
7.2.3 Perform a FDO
®
Check
Proceed as follows to carry out the
FDO
®
Check:
1. Connect the D.O. sensor to the meter.
2. Place the D.O. sensor in the
FDO
®
Check check and storage vessel.
3. Close the check and storage vessel
FDO
®
Check.
The sponge in the check and storage beaker must be moist (not
wet). Leave the sensor in the check and storage beaker long
enough so it can
adapt to the ambient temperature.
4. In the menu for measurement and calibration settings (
<ENTER>
/ FDO
Check / Start FDO Check
), start the FDO
®
Check.
The meter switches to the measured parameter, %.
5. Start the measurement with
<ENTER>
.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter flashes.
O
2
99.8
%
25.0
°C
FDO Check
[HOLD]
01.02.2014
08:00
[t90= 30 s]