User Guide

Instruction Manual DO 100
15
6 HOLD FUNCTION
This feature lets you freeze the value of the DO
reading for a delayed observation. HOLD can be used
any time when in MEAS mode.
1. To hold a measurement, press the HOLD key
while in measurement mode. “HOLD” will appear
on the display.
See Figure 12.
2. To release the held value, press HOLD again.
Continue to take measurements.
NOTE: This meter shuts off automatically after
20 minutes of last key press. If the meter
is shut off either automatically or
manually, the HOLD value will be lost.
For longer storage, use the memory
functions.
Figure 12: HOLD Function