Keithley 2002 Getting Started Manual

Continuous triggering #2
The following example program sets up the Model 2002 to take readings continuously after
an external trigger is received. The trigger rate is set to one reading every 50ms.
'Example program to demonstrate continuous triggering
'at a specified rate
'For QuickBASIC 4.5 and CEC PC488 interface card
'Edit the following line to where the QuickBASIC
'libraries are on your computer
'$INCLUDE: 'c:\qb45\ieeeqb.bi'
'Initialize the CEC interface as address 21
CALL initialize(21, 0)
'Reset controls in INIT, ARM;LAY1, ARM:LAY2, and TRIG subsystems
'and put trigger model in IDLE state
CALL SEND(16, "*rst", status%)
'*RST sets TRIG:SOUR to IMM
CALL SEND(16, "arm:lay2:sour ext", status%)
CALL SEND(16, "trig:coun inf;sour tim;tim .05", status%)
'start everything
CALL SEND(16, "init", status%)
After the Model 2002 receives the INITiate command, it stops in ARM:LAYer2 of the trigger
model, waiting for a pulse on the external trigger jack. After the external trigger signal occurs,
the Model 2002 moves to the
TRIGger layer. Since TRIGger:SOURce is set to TIMer, a reading
is triggered immediately, with a subsequent reading every 50ms. Because
TRIGger:COUNt has
been set to infinity, the trigger model never exits from the
TRIGger layer.
3-22 IEEE-488 Bus Operation

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A