Agilent Technologies E1346A Manuel de service télécharger pdf (Page 25)

Ch 90-92

GU Measurements 1. Make Hardware Connections

• Turn mainframe power OFF

• Connect DMM leads as shown in Figure 2-5

• Turn mainframe power ON

2. Measure Channel 90 GU Resistance

• Send *RST to multiplexer

• Send CLOS (@nn00) to close chan 90 and 00, where nn = card #

(omit leading zeroes in nn ).

• Trigger the DMM with TRIG SGL and note reading

• Send OPEN (@nn00) to open channel 90 and 00

• Subtract measured value of R41 from DMM reading

• Enter the result in Table 2-2 for Channel 90 GU

3. Repeat for Channels 91 and 92 GU

• Repeat steps 1 and 2 for channels 91 and 92 GU

• Use CLOS (@nncc) and OPEN (@nncc), where nn = card # and cc

= channel # (omit leading zeroes in nn) Use 08 for channel 91 and 16

for channel 92.

Figure 2-5. Ch 90 GU Measurement Connections

Verification Tests 2-7

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Agilent Technologies E1346A Manuel de service Page 25