YSI MultiLab 4010-1W, Руководство по эксплуатации

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MultiLab 4010-1W Dissolved oxygen
ba76141e07 08/2018
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7.2 FDO Check (checking the FDO 4410)
The sensor is checked in water vapor-saturated air in the check and storage
vessel FDO Check.
7.2.1 Why should you check the sensor?
With the
FDO Check
procedure you can find out in a simple manner whether
the FDO 4410 D.O. sensor should be cleaned or calibrated.
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, %.
During the
FDO Check
the DO % Saturation local function is automati-
cally activated.