Keithley 2701 User Manual

Model 2701 User’s Manual Scanning 7-33
Operation
A simplified model of external trigger scan operation is shown in Figure 7-4, while the
procedure steps and programming commands are listed in Table 7-2.
As shown in the operation model, when the scan is enabled, channel 101 closes and the
Model 2701 waits for an external trigger. When the trigger is received, channels 101 and
102 are measured. Operation then returns to the control source where it waits for another
trigger.
NOTE After the scan is enabled (Table 7-2, step 5), the TRIG key can be used to trigger
the scan.
Figure 7-4
External trigger scan example
2
Measurements
?
Measure
Open Last Chan
Close Next Chan
No
Yes
Wait For Trigger
Close Chan 101
Enable Scan

Keithley 2701 Specifications

General

Max Voltage	300 V
Max Current	3 A
Frequency Range	3 Hz to 500 kHz
Frequency Accuracy	0.01%
Weight	3.6 kg
Measurement Functions	Frequency, Temperature
Interface	IEEE-488 (GPIB), RS-232
DC Voltage Range	300 V
DC Current Range	3 A
AC Voltage Range	300V
AC Current Range	1 μA to 3 A
Resistance Accuracy	0.01%
Channels	10
Dimensions	213mm x 88mm x 370mm