IM 2769-10E
―
4
―
[5] Galvanometer Sensitivity Dial
The galvanometer sensitivity is selected by this dial;
G
0
gives the highest sensitivity, G
1
is medium, and G
2
is lower than G
1
.
With this switch, the galvanometer driving battery can be checked through observing the meter.
When the pointer is deflected to the blue zone, this shows that the battery is good.
Also, this switch turns on/off the galvanometer driving battery.
[6] INT. BA
Terminals
When the self-contained battery is used to supply power to the bridge,
these terminals are short-circuited by the short-bar.
[7] EXT. BA
Terminals
When an external power supply is used, these terminals are short-circuited by the short-bar.
[8] Rx Terminals
An unknown resistance is connected to these terminals.
The Rx terminals consist of current terminals C
1
, C
2
and potential terminals P
1
and P
2
.
[9] P
2S
Terminal
This is one of the potential terminals to which the Standard Resistor 2771 is connected.
[10] EXT. BA Terminals
An external battery is connected across these terminals.
The minus (-) side of the terminals is one of the current terminals to
which the External Standard Resistor is connected.
