Keithley 2750 User Manual

1-36 Getting Started Model 2750 Multimeter/Switch System User’s Manual
Figure 1-10
Exercise 5 — Trigger and return multiple readings
INIT:CONT OFF
TRIG:COUN 1
SAMP:COUN x
READ?
INIT
FETCh?
Place 2750 in non-continuous
trigger state
Set 2750 to perform “x”
number of measurements
(x = 2 to 110000)
2. INIT triggers the measurements, and FETCh? returns the readings. Again sending
FETCh? without first sending INIT will return old readings.
4. Triggered readings are automatically stored in the buffer. Statistics for buffer readings
are also stored in the buffer. CALC2 commands are used to calculate and return
buffer statistics (see Section 6 for details).
TRAC:CLE
Clear Buffer
1
Trigger and Return
Readings
2, 3
3. READ? performs an INIT to trigger the measurements, and then FETCh? to return
the reading(s).
OR
TRAC:DATA?
Return Stored Readings
4
Trigger and Return
Readings
Trigger Configuration
1. In order to trigger and return multiple readings, the buffer must first be cleared of
readings that were stored by the TRACe command or front panel operation (see
Section 6 for details on buffer operation).
2750-900-01.book Page 36 Wednesday, August 3, 2011 7:56 AM

Keithley 2750 Specifications

General

Interface	GPIB, RS-232, Ethernet
Switching Speed	Up to 500 channels/second
Maximum Voltage	300V
Operating Temperature	0°C to 50°C
Measurement Functions	DCV, ACV, DCI, ACI, 2-wire Resistance, 4-wire Resistance, Frequency, Temperature
Resolution	6.5 digits
Current	1A
Maximum Current	1A