Rev: 01
P/N: 95343
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4.
Gently press the wiper pad against the face of the probe until the
pad is compressed to roughly three quarters of its original thickness.
It is important that the wiper arm does not make contact with the
probe face – only the pad should be in contact. A gap of 0.5 mm
between the wiper arm and the probe face is typical when a new
pad has been installed. An easy way of setting the pad gap is to slide
a small piece of paper under the pad and then gently push down
until the wiper is just snug enough that the pad will hold the paper.
5.
Tighten the set screw gently until snug. IT IS VERY IMPORTANT that you don’t overtighten this screw to
avoid stripping the threads, which would require replacement of the entire turbidity sensor.
6.
NEVER rotate the wiper arm manually!
This will strip the gears inside the wiper mechanism, which
would require replacement of the entire turbidity sensor.
Setting up the MicroPurge sonde for calibration
The MP25 and MP25T sondes are equipped with a storage cup that doubles as the calibration cup. The bottom
cap of the cup can be unscrewed and the sonde inverted for calibration. The cap can also be inverted and used
as a temporary lid for calibration of parameters such as DO % saturation in saturated air or water. The QED flow
cell kit includes a unique calibration stand that slips over the edge of the carrying case and holds the inverted
sonde as shown in the photo below.
Select Parameter to Calibrate
When beginning the calibration process, a dialog box will appear prompting the user to choose which parameter
to calibrate. After selecting press calibrate to open the next dialog box.
