Keithley 2002 User Manual

Example Programs
G-20
Program (bufclint.bas) (cont.)
cmd$ = ":trac:feed:cont next; *OPC"
GOSUB send2002 ' Select Next buffer control mode
' Set OPC upon completion of commands
cmd$ = ":rout:scan:lsel ext"
GOSUB send2002 ' Select external scan mode
'trigger equipment
cmd$ = ":init"
GOSUB send7001 ' Take 7001 out of idle
cmd$ = ":init"
GOSUB send2002 ' Take 2002 out of idle
'
' Start filling....
'
t1 = TIMER
' Wait for buffer to fill...
'
DO
DO
LOOP UNTIL srq%
CALL spoll(DmmAddr%, poll%, status%)
LOOP UNTIL (poll% AND 64) ' Loop until buffer fills
cmd$ = ":stat:meas:even?"
GOSUB send2002
CALL enter(Sme$, length%, 16, status%)
'
' Go get buffer contents.
'
cmd$ = "trac:data?"
GOSUB send2002 ' Read all readings in buffer
DIM Readings!(1 TO 350), dummy!(1 TO 1)
' Setup CEC for LISTEN & 2002 for TALK
CALL transmit("UNT UNL MLA TALK 16", status%)
' Read 2 bytes (#0)
r$ = SPACE$(2)
CALL receive(r$, l%, status%)
NumDataPoints% = 35
' Get Data in 4 blocks since CEC can only handle up to 64kB
' per data transfer.
NumBytes% = NumDataPoints% * 4
CALL rarray(Readings!(1), NumBytes%, l%, status%)
' get Terminator Character(s)
CALL settimeout(100)
CALL rarray(dummy!(1), 1, l%, status%)
CALL settimeout(10000)
CALL transmit("UNT UNL", status%) ' UNTalk and UNListen all devices
t2 = TIMER
t3 = t2 - t1
FOR i = 1 TO 35
PRINT "Rdg("; i; ") = "; Readings!(i) ' Display reading
NEXT i
PRINT
PRINT "Total time = "; t3 ' Display total processing time
' for all readings
PRINT
t4 = t3 / 35
PRINT "Seconds per channel = "; t4 ' Display the average time for each
' reading
END

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