4
Front and Rear Panel Features
Before using your Tester, take a few minutes to become familiar with the use of its controls, indicators
and connectors. The front panel features of the GFM-300A-DM are shown in Figure 2-1 and described
in Table 2-1.
Front Panel
Figure 2-1. Controls, Indicators, Connectors - Model GFM-300A-DM Front Panel
Front Panel Description
ITEM
NAME
FUNCTION
1
Output Breaker
Switch
The Output Switch enables the outputs thru the leads. Always
turn the knob to the minimum before switching to ON position.
2
Knob – Output
Adjustment
The large knob facilitates the increase or decrease of current
output. Always turn the knob to the minimum before switching
the output to ON.
3
Current Digital Meter The Current Digital Meter displays the current that is flowing
thru the output leads.
A Red flashing backlight alarm is activated when exceeding
305A.
4
Voltage Digital
Meter
The Voltage Digital Meter displays the voltage that is between
the output leads clamps.
Table 2-1. Controls, Indicators, Connectors - Model GFM-300A-DM Front Panel
