U3402A-ABA AGILENT TECHNOLOGIES, U3402A-ABA Datasheet - Page 84

• Manufacturer Part Number: U3402A-ABA
• Description: English Users And Service Guide 3400
• Manufacturer: AGILENT TECHNOLOGIES

Specifications of U3402A-ABA

• Rohs Compliant: NA
• For Use With: U3400 Series U3402A Dual Display Multimeter

4
Test Considerations
64
Performance Test
Input Connections
For optimum performance, all procedures should comply with the following
recommendations:
• Ensure that the calibration ambient temperature is stable and between
• Ensure ambient relative humidity is less than 80%.
• Allow a one- hour warm- up period with a shorting plug connected to the Hi
• Use shielded twisted pair Teflon- insulated cables to reduce settling and
• Connect the input cable shields to earth ground. Connect the calibrator Lo
Because the instrument is capable of making very accurate measurements, you
must take special care to ensure that the calibration standards and test
procedures used do not introduce additional errors. Ideally, the standards
used to verify and adjust the instrument should be an order of magnitude more
accurate than each instrument range full- scale error specification.
Test connections to the instrument are best accomplished using the dual
banana plug with copper wire short between two terminals for low- thermal
offset measurement. Shielded, twisted- pair, Teflon interconnect cables of
minimum length are recommended between the calibrator and the multimeter.
Cable shields should be earth ground referenced. This configuration is
recommended for optimal noises and settling time performance
during calibration.
18 °C and 28 °C. Ideally the calibration should be performed at 23 °C ±1 °C.
and Lo input terminals.
noise errors. Keep the input cables as short as possible.
source to earth ground at the calibrator except where noted in the
procedures. It is important that the Lo to earth ground connection be made
at only one place in the circuit to avoid ground loops.
U3402A User’s and Service Guide