Amprobe AMB-110 Insulation-Resistance-Tester - Manual (Page 12)

7
Mains powered instrument operation
If you connect instrument to the mains supply when instrument is turned OFF, internal charger will
begin to charge the batteries but instrument will remain turned OFF. In button left angle of LCD,
flashing battery indicator will appear to indicate that the batteries are charging.
Note:
If batteries are defective or missing, the charger will not work. In button left corner of LCD
screen only plug character will be appeared.
If the instrument is connected to the mains supply when the instrument is turn ON, the
instrument will automatically switch from the battery supply to the main supply. In button
left corner of the LCD screen, the plug character will appear. If instrument is not in measuring
mode*, the internal charger will begin to charge the batteries. In button left corner of LCD
screen battery indicator will start to flash, indicating that the batteries are charging.
Note:
It is not recommended to connect or disconnect the instrument to mains supply while the
instrument is in measuring mode*.
* measuring mode when the instrument is performing a test.
Backlight operation (battery powered instrument)
After turning the instrument ON the LCD backlight is automatically turned ON. It can be turned
OFF and ON by simply pressing the LIGHT key.
Backlight operation (mains powered instrument)
After turning the instrument ON the LCD backlight is automatically turned OFF. It can be turned
OFF and ON by simply clicking the LIGHT key.
Off function
The instrument can be switched OFF only by pressing the ON/OFF key. The auto-off function is not
available to allow long-term measurements to be performed.
Configuration
The configuration function enables the selection and adjustment of the parameters (Table 1.) that
are not directly involved in the measurement procedure (Fig. 4).
In the lower section of the display the power supply status is shown.
The following procedure must be carried out when adjusting some of the configuration
parameters:
1. Use and arrows to select parameter (line) to be adjusted.
2. Use and arrows to change the value of the selected parameter. If there are two or more
sub-parameters in one line (e.g. date and time) then use the SELECT key to skip to the next sub-
parameters and back.