Thermo Fisher Scientific CyberScan DO 110 - Manual (Page 38)

Instruction Manual CyberScan DO 110
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8.9 P 8.0: % Saturation Offset Adjustment (OFS)
This is a useful feature that allows you to offset meter’s value when cross referenced
with another DO meter. That way, it can be standardized without you having to
perform manual calculation. Your DO 110 meter allows % Saturation Offset
adjustment within +/- 10.0% offset and its adjusted offset value can be viewed in the
P3.0 Electrode Properties menu “EL.2”.
From the % Saturation measurement mode,
1. Dip the DO electrode in the sample solution and
allow the reading to stabilize.
2. Check the reading of another DO meter being
used as a reference. This reference meter
should have its probe immersed in the same
sample solution and at the same depth.
3. Press the SETUP to enter the % Saturation Set
Up menu.
4. Scroll the Set Up menu by using the ▲ and ▼
keys until the meter displays the % Saturation
Offset Adjustment P.70 menu “OFS.”.
5. Press the HOLD/ENTER key to enter the menu.
The display will show the last offset adjusted value.
6. Use the ▲ and ▼ keys to enter the new value.
7. Press the HOLD/ENTER key to confirm the offset adjustment and the display
returns to the subgroup menu.
8. Press CAL key to exit the Set UP menu to return to the measurement mode.
Note: When a user calibration is done, the offset will be reset to zero.
OFS
SETUP
SETUP
p 8.0
MEAS
90.0
90.0
ENTER
HOLD
%