ppbRAE 3000 User’s Guide
22
Turning The Instrument Off
1. Press and hold the Mode key for 3 seconds. A 5-second
countdown to shutoff begins.
2. Once the countdown stops, the instrument is off. Release the
Mode key.
3. When you see “Unit off...” release your finger from the
[MODE] key. The instrument is now off.
Note: You must hold your finger on the key for the entire shutoff
process. If you remove your finger from the key during the
countdown, the shutoff operation is canceled and the instrument
continues normal operation.
Operating The Built-In Flashlight
The instrument has a built-in flashlight that helps you point the probe
in dark places. Press the flashlight key to turn it on. Press it again to
turn it off.
Note: Using the flashlight for extended periods shortens the battery’s
operating time before it needs recharging.
Pump Status
IMPORTANT!
During operation, make sure the probe inlet and the gas outlet are free
of obstructions. Obstructions can cause premature wear on the pump,
false readings, or pump stalling. During normal operation, the pump
icon alternately shows inflow and outflow as shown here:
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