Technical data

10 U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide
2 Performance Test Calibration
Recommended Test Equipment
The test equipment recommended for the performance
verification and adjustment procedures is listed below. If the
exact instrument is not available, substitute with a
calibration standards of an equivalent accuracy.
A suggested alternate method would be to use the Agilent
3458A 8½ - digits digital multimeter to measure less accurate
yet stable sources. The output value measured from the
source can be entered into the instrument as the target
calibration value.
Table 2 - 1 Recommended test equipment
Application Recommended equipment Recommended accuracy requirements
Zero Calibration Shorting Plug - Dual banana plug with
copper wire short between the two
terminals
DC Voltage Fluke 5520A <1/5 instrument 1 year spec
DC Current Fluke 5520A <1/5 instrument 1 year spec
Resistance Fluke 5520A <1/5 instrument 1 year spec
AC Voltage Fluke 5520A <1/5 instrument 1 year spec
AC Current Fluke 5520A <1/5 instrument 1 year spec
Frequency Fluke 5520A <1/5 instrument 1 year spec