Button Functions In Measuring Mode - Herth+Buss ELPARTS SelectH2 Operating Instructions Manual

Operating Instruction

2.8 Button functions in measuring mode

The right-hand button has
2 sets of functions:
1st function level:
Press the button until a brief signal tone
can be heard. Release the button
2nd function level:
Press and hold the button until 2 short signal
tones can be heard. Release the button.
Upper button:
Switches background lighting for LCD and
buttons on or off. In general, the background
lighting switches on automatically with a
follow-up time of approx. 15 seconds: After
switching the device on and after the heat-
up phase is complete; after each time a func-
tion button is pressed.
The background lighting can be switched
on or off permanently using the upper but-
ton. Two LEDs are provided to illuminate the
LCD. An LED is provided for the keypad.
17
Right button:
1st function level:
In measuring mode: Switches the signal
tone transmitter on or off in calibration
mode: Confirmation button
2nd function level:
Resets detection mode if the LEL is exceeded
The right button can be used to switch the
signal tone transmitter on or off. The current
status (signal tone transmitter on or off) can
be seen in the display by means of the louds-
peaker special segment. In the 2nd function
level, the detection mode is reset if the LEL
is exceeded. CLr appears in the display for 2
seconds. In calibration mode, the right but-
ton is used to confirm the individual calib-
ration steps.
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