User Guide

Instruction Manual DO 100
24
8.1.2 P 2.0: 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 standardised without you having to perform
manual calculation.
1. Once you come to the setup menu shown in Figure 18,
press ENTER.
2. Dip the DO probe in a sample solution.
3. 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.
4. Use MI/ or MR/ key to adjust displayed value to
match with the reference meter.
5. Press ENTER key to confirm offset value.
6. The meter will accept the value and move on to the
next menu. See Figure 18.
NOTE: Press HOLD key to skip this operation and
move on to the next menu, or press
CAL/MEAS key to exit setup menu to go back
to measurement mode.
Figure 18: Adjusting Offset
Menu