Xylem Lab 850, starting from serial number 09470315 - Manual (Page 21)

Lab 850 Operation
21 ba75890e01 11/2009
4.3.2 Measuring the ORP
The meter can, in conjunction with an ORP electrode, measure the
ORP (mV) of a solution.
Note
ORP electrodes are not calibrated. However, you can check ORP
electrodes using a test solution.
1 Perform the preparatory activities according to page 19.
2 Immerse the ORP electrode in the test sample.
3 If necessary, call up the measured parameter U with <MODE>.
4 Wait for a stable measured value.
3
6
1
8
2
4
U
°C
TP
mV