YOKOGAWA 2768, User Manual, Page: 10 / 19

IM 2768-01E
― 5 ―
[4] Sensitivity Knob:
Used to adjust the sensitivity of the internal galvanometer.
Turn the knob to increase the sensitivity.
[5] Power Supply Function Switch:
OFF: Power sources for the bridge circuit and the internal
galvanometer are switched off.
1.5 V to 15 V: Used to set the power supply voltage for the bridge circuit.
The power source for the internal galvanometer will be ON.
EXT: The external power source is connected to the bridge circuit,
and the power source for the internal galvanometer is set to ON.
[6]
BA: This is a push button type switch used to switch the power source
for the bridge circuit ON and OFF during measurement.
[7] GA: This is a push button type switch used to connect
the galvanometer input to the bridge circuit.
[8] Rx Terminal:
Used to connect the resistance under test.
[9] Rs Terminal:
Used when the measuring dial (Rs) is employed as
a variable resistor.
[10] EXT. GA Terminal:
Used to connect the external galvanometer.
[11] EXT. BA Terminal:
Used to connect the external power source.
[12] Ground Terminal
[13] Galvanometer Guard Terminal
[14] Rx Guard terminal
Battery Case: The case is located on the bottom of this instrument.
Remove the cover by removing the screws to replace
the batteries.
The power source for the galvanometer is the dry cell battery
(006P) located at the end of the case.