Filter
Top Products
Performance Verification
AM700 Audio Measurement Set Service Manual
4–11
12
3
Dual-banana plug
Black –
XLR Female
internal connections
Red +
Banana plug, black
+
–
Shield
Figure 4–7: Cable for generator output level check
9. Set the external RMS meter as follows:
Measure mode to LEVEL
Measurement units to voltage (V)
Input impedance 200 kW or greater
10. Check that the Level reading is 3.5 V ±1.0% (3.465 V to 3.535 V).
11. Set the generator voltage to the settings given in Table 4–2 and check the
Level reading for ±1.0% accuracy at each generator setting.
Table 4–2: Generator test voltages at 120 Hz
Generator voltage setting RMS meter reading (Ch A) RMS meter reading (Ch B)
24.5 V
16 V
8 V
4 V
2 V
1 V
0.5 V
0.25 V
0.125 V
62.5 mV
12. Disconnect the Analog A generator and connect the Analog B generator
output to the input of the RMS meter.