USER MANUAL
400GD
10 / 20
MRU GmbH, D-74172 Neckarsulm
4
Operation
4.1.
Commissioning
The analyzer has been factory assembled, has been calibrated and is ready
to be used.
Check the instrument regarding condition and integrity after delivery.
Charge the internal battery for at least 8 hours,
☞
see 5.2.
4.2.
Power up – analyzer without sensor
Press and hold the OK key for at least 3 seconds.
The MRU start screen appears.
You are asked to connect a sensor.
Connect the sensor
☞
see 5.2
The warm up phase is displayed (only HC400)
The measurement menu is being displayed after
warmup.
The analyzer is ready to measure.
4.3.
Power down
Select OFF using the arrow keys.
Press the OK key.
The analyzer powers down.
or
Press the OK key longer
.
The analyzer powers down.
4.4.
Auto-off function
The screen below appears if the analyzer is not used over a period.
4.5.
Reset
Press both arrow keys at the same time to make a hardware reset, the ana-
lyzer powers down.
Press ANY key to stop the count-
down and the analyzer stays on
.
Analyzer powers down if no key is
pressed.
