Keithley 2700 Service Manual

1-26 Performance Verification
7. Source the nominal full-scale resistance values for the 100Ω-10MΩ ranges summarized
in Table 1-13, and verify that the readings are within calculated limits.
8. Connect the Model 7700 CH1 and CH11 terminals to the calibrator as shown in
Figure 1-13.
9. Disable external sense on the calibrator.
10. Set the Model 2700 for the 100MΩ range.
11. Source a nominal 100MΩ resistance value, and verify that the reading is within calcu-
lated limits for the 100MΩ range.
12. Press the OPEN key to open Channel 1.
Figure 1-13
Connections for Model 7700 resistance verification (100MΩ range)
HLHL
AMPS
HLHLHLHLHLHL
LO
CH21 CH22 CH11 CH12 CH13 CH14 CH15 CH16
HLHLHLHL
CH17 CH18 CH19 CH20
SENSE
(OHMS, 4 WIRE)
INPUT
(V, 2 WIRE)
HLHLHLHL
CH7 CH8 CH9 CH10
HLHL
HLHL
HLHL
HLHL
INPUT SENSE
CH1 CH2
CH3
CH4
CH5
CH6
CH1
CH11
Output
HI
Output
LO
Calibrator (Output 2-wire Resistance)
Note: Use shielded cables to minimize
noise. Disable calibrator external
sense mode.
Model 7700

Keithley 2700 Specifications

General

Type	Digital Multimeter
Measurement Functions	DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Temperature Range	-200°C to +1372°C
Display	Vacuum Fluorescent Display
Connectivity	IEEE-488, RS-232
Channels	10
Power Supply	100V to 240V AC, 45Hz to 66Hz
DC Current Range	10 µA to 3 A
AC Current Range	10 µA to 3 A
Temperature Measurement	Thermocouple, RTD