Keithley 2700, Service Manual

Page: 37 / 174

Performance Verification 1-21
2. Install the Model 7700 in Slot 1 of the Model 2700, then turn on the power, and allow
the unit to warm up for two hours before proceeding. Be sure the front panel INPUTS
switch is set to the REAR position.
3. Select the AC volts function by pressing the ACV key. Close Channel 1 by pressing the
CLOSE key and then keying in 101.
4. Set the Model 2700 for the 100mV range; make sure that REL is disabled.
5. Source 1kHz and 50kHz AC voltages for each of the ranges summarized in Table 1-10 ,
and make sure that the respective Model 2700 readings fall within stated limits.
6. Press the OPEN key to open Channel 1.
Table 1-10
Plug-in module ACV reading limits
ACV
range Applied AC
voltage 1kHz reading limits
(1 year, 18°C to 28°C) 50kHz reading limits
(1 year, 18°C to 28°C)
100mV
1V
10V
100V
750V 100.0000mV
1.000000V
10.00000V
100.0000V
300.000V* 99.910 to 100.090mV
0.99910 to 1.00090V
9.9910 to 10.0090V
99.910 to 100.090V
299.60 to 300.40V 99.830 to 100.170mV
0.99830 to 1.00170V
9.98300 to 10.0170V
99.830 to 100.170V
299.27 to 300.73V
* If the 5725A amplifier is not available, change the 300V @ 50kHz step to 220V @ 50kHz. Read-
ing limits for 220V @ 50kHz = 219.36 to 220.64V.