User manual

H35.0.02.6C-09 Operating Manual GMH 3250 page 5 of 14
5.2 Pushbuttons
On/off key
+
min/max when taking measurements:
press shortly: min. or max. measuring value will be
displayed
press for 1 sec.: the min. or max. value will be deleted
up/down for config. or selection for logger operation:
to enter values, or change settings
Tare: (for ’DIF’-display when working with two sensors only)
press shortly: the difference between CH1-CH2 will be
set to zero.
press for 1 sec.: tare function will be deactivated
Set/Menu:
press (Set) shortly in case of 2 sensors:
the values displayed (CH1, CH2, DIF) can be selected
press (Menu) for 2 sec.: configuration will activated
Store/Quit:
Measurement: Hold current measuring value (’HLD’ in
display)
Set/Menu: Acknowledge setting, return to measuring
5.3 Connections
Interface: connection for electrically isolated interface adapter
(accessory: GRS 3100, GRS3105 or USB3100)
Sensor connection CH2: channel 2
Sensor connection CH1: channel 1
The mains socket is located at the left side of the instrument.