Keysight E3632A, Service Manual

Page: 52 / 73

1 Calibration Procedures
54 Keysight E3632A Service Guide
Calibration Program
This section contains a Keysight BASIC program for calibration over the GPIB
interface. This program makes software adjustments to the E3632A power supply
using a current shunt and a digital mutimeter which is connected to the
controller. In this program a 0.01 ohm current shunt is used. Be sure to change
the value of the variable “Current_shunt” to the value of the current shunt used
and the GPIB address for the power supply and the digital voltmeter.
10 !
20 ! This program was written on a PC with Keysight Basic for Windows.
30 ! It will make software adjustments to the E3632A Power Supply
40 ! on the GPIB bus using a Keysight 34401A Digital Multimeter and a
50 ! current shunt. In the program a 0.01 ohm current shunt is
60 ! used to measure current. Be sure to change the value of
70 ! the variable 'Current_shunt' to the value of the current
80 ! shunt used.
90 !
100 CLEAR SCREEN
110 DIM Cal_msg$[40],Error$[40],Sec_code$[10]
120 REAL Dmm_rdg,Current_shunt
130 Current_shunt=.01 ! Current Shunt value in Ohms
140 Sec_code$="HP003632" ! Assign the security code
150 ASSIGN @Dmm TO 722 ! Assign address 22 to the Dmm
160 ASSIGN @Pwrsupply TO 705 ! Assign address 5 to the Power Supply
170 CLEAR 7 ! Clear GPIB, Dmm and Power Supply
180 OUTPUT @Pwrsupply;"*CLS" ! Clear Power Supply errors
190 OUTPUT @Dmm;"*RST" ! Reset Dmm
200 OUTPUT @Pwrsupply;"*RST" ! Reset Power Supply
210 OUTPUT @Pwrsupply;"CAL:STR?" ! Read the calibration message
220 ENTER @Pwrsupply;Cal_msg$
230 PRINT TABXY(5,2),"Calibration message of Power Supply is: ";Cal_msg$
240 !
250 ! Set the Calibration security to off, and check to be sure
260 ! it is off. If not successful, print message to screen and end.
270 !
280 OUTPUT @Pwrsupply;"VOLT:PROT:STAT OFF"
290 OUTPUT @Pwrsupply;"CURR:PROT:STAT OFF"
300 OUTPUT @Pwrsupply;"CAL:SEC:STAT OFF, ";Sec_code$
310 OUTPUT @Pwrsupply;"CAL:SEC:STAT?"
320 ENTER @Pwrsupply;A
330 IF A=1 THEN
340 PRINT TABXY(5,5),"****** Unable to Unsecure the Power supply ******"
350 GOTO 2290
360 END IF
370 !
380 ! Perform the DAC error correction, voltage calibration and OVP
calibration.
390 ! Alert the operator to hook up the connection before calibrating.
400 !
410 ! Alert operator to connect lead
420 PRINT
TABXY(10,10),"*********************************************************"