User manual

Section 14: Verification Series 3700 System Switch/Multimeter Reference Manual
14-6 3700S-901-01 Rev. C / July 2008
Test considerations
When performing the verification procedures:
Be sure to restore factory front panel defaults as outlined in Restoring
factory defaults (on page 14-5).
Make sure that the test equipment is properly warmed up and connected to
the Series 3700 terminals.
Be sure the test equipment is set up for the proper function and range.
Do not connect test equipment to the Series 3700 through a scanner,
multiplexer, or other switching equipment.
WARNING The input/output terminals of the digital multimeter (DMM)
and switch cards are rated for connection to circuits rated
Installation Category I only, with transients rated less than
1500V peak. Do not connect the DMM or switch card
terminals to CAT II, CAT III, or CAT IV circuits.
Connections of the DMM or switch card terminals to
circuits higher than CAT I can cause damage to the
equipment or expose the operator to hazardous voltages.
Series 3700 verification tests
Perform these tests to verify the accuracy of your Series 3700 at the analog
backplane connector.
Verifying DC voltage
Check DC voltage accuracy by applying accurate voltages from the DC voltage
calibrator to the Series 3700 analog backplane connector and verifying that the
displayed readings fall within specified limits.
CAUTION Do not exceed 300V peak between INPUT HI and INPUT LO
because instrument damage may occur.