5.5.16 Sleeping mode
When the meter is powered by batteries, it is necessary to enable the sleeping mode for the power
saving to allow a longer operation time.
The meter is programmed with an automatic sleeping mode that will automatically shut off the
display and the control circuitry is at minimal power consumption. This mode will be executed when
the continuously measured flow rate is zero for 5 minutes.
The meter can also be turned into the sleep mode manually via pressure the “Up” key for 3 seconds.
5.5.17 Wake up the meter
When the meter is in sleeping mode, it will be automatically wake up if the flow rate in the flow
channel is larger than 0.5 L/min (1.1 SCFH or 0.03 m
3
/h ) for 10 seconds. Or the meter can be waked
up manually by pressing any of the three keys in the front meter face.
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