Hach H160 User Manual page 14

Operation
Key
HOLD mode. Readings are frozen until HOLD key is
pressed again to release the display. Only operates in
measurement modes. •
Used to confirm values and begin calibration
Scroll values when in calibration mode: View setup screens
and set numeric values during setup
Enter setup mode
Confirm values to begin calibration and HOLD
measurement indication
12
Action H160 H170
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