Section 4
TM9211B-A-00
6 November 2013
4-6
(e)
Repeat for all currents listed for each test point. Always start with lowest current (minimum heat
dissipation) and work to highest current.
4.6.4
Calibration of 10 A (10 m ) Range
(a)
Disconnect the 1 A Current Cables Cable and connect a cable capable of handling 10 A to the
10 A and Input Common Terminals. On the 6623A Range Extender, move the Input
Common cable connection to the appropriate range extender 15 A output high and low.
Potential Cables should remain connected as before.
(b)
Move the two Range Plugs to 10 A. Allow the UUT to stablize 10 minutes prior to starting the
measurements
(c)
Output the first current (starting with lowest current) for the 10 A and after proper bridge
measurement cycle (refer to user manuals for bridge), record the UUT value under MEASURED
VALUE on the worksheet.
(d)
Unit value should be between the minimum and maximum values. If not, unit will require repair.
(e)
Repeat for all currents listed for each test point. Always start with lowest current (minimum heat
dissipation) and work to highest current.
4.6.5
Calibration of 100 A (1 m ) Range
(a)
Common and Potential Cables should remain connected as
before. Disconnect the 10 A Current Cables and connect a cable
capable of handling 300 A to the
100 A and Input Common
(Right side) and to the 6623A-300 Range Extender 300 A output.
Potential Cables should remain connected as before.
(b)
Move the two Range Plugs to 100 A. Allow the UUT to stablize 10
minutes prior to starting the measurements
(c)
Output the first current (starting with lowest current) for the 100 A and after proper bridge
measurement cycle (refer to user manuals for bridge), record the UUT value under MEASURED
VALUE on the worksheet.
(d)
Unit value should be between the minimum and maximum values. If not, unit will require repair.
(e)
Repeat for all currents listed for each test point. Always start with lowest current (minimum heat
dissiapation) and work to highest current.
4.6.6
Calibration of 300 A (0.333 333 m ) Range
(a)
Connect leads capable of handling 300 A to the 9211B Input Common (Right side) and the 300 A
Terminals to the 6623A-300 Range Extender output high and low.
Summary of Contents for 9211B Series
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