Nova-Tech DO 6+ - Manual (Page 32)

Instruction Manual DO 6+
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5.8 % Saturation Offset Adjustment (OFS.6)
Use this feature to offset the meter’s value
when cross referenced to another DO
meter. The DO 6+ allows +/- 10.0% offset
adjustment. View the offset value from the
Electrode Data menu “ELE.3”.
1) Using the % saturation mode of your
DO6+, observe the reading a sample
solution after it has stabilized.
2) Similarly, observe the reading of the
same sample using another DO meter
as a reference. The probe of the
reference meter should be immersed
in the same sample at the same depth.
3) Switch off the DO6+ and enter the %
saturation setup menu.
4) Press ▲▼ to select “OFS.6”.
5) Press HOLD/ENTER to enter the
menu. The display will momentarily
show the measured reading based on
the last calibration before displaying
the last offset adjusted value.
6) Use ▲▼ to enter the value of the
reference DO meter.
7) Press HOLD/ENTER to confirm.
8) Press CAL to return to measurement mode.
Note: User calibrations will reset the offset adjustment to 0.0 %.
%
HOLD
ENTER
Measured reading based on last
percentage saturation calibration
is displayed momentarily
%
%
HOLD
ENTER
Last offset adjusted
value will be displayed
Display will return to “OFS.6” subgroup menu
“CO” will display for
1.5 seconds