1-4
Performance Verification
Recommended test equipment
Table 1-1 summarizes recommended verification equipment. You can use alternate equip-
ment as long as that equipment has specifications comparable to those listed in Table 1-1.
Keep in mind, however, that test equipment uncertainty will add to the uncertainty of each
measurement. Generally, test equipment uncertainty should be at least four times better
than corresponding Model 2425 specifications. Table 1-1 lists the specifications of the
recommended test equipment, including maximum allowable uncertainty for alternate test
equipment (shown in parentheses).
Table 1-1
Recommended verification equipment
Description
Manufacturer/Model
Specifications
Digital Multimeter
Hewlett Packard
HP3458A
DC Voltage
1
1V:
10V:
100V:
±5.6ppm
±4.3ppm
±6.3ppm
DC Current
2
10
μ
A:
100
μ
A:
1mA:
10mA:
100mA:
1A:
±25ppm
±23ppm
±20ppm
±20ppm
±35ppm
±110ppm
Resistance Calibrator Fluke 5450A
Resistance
2
1.9
Ω
:
19
Ω
:
190
Ω
:
1.9k
Ω
:
19k
Ω
:
190k
Ω
:
1.9M
Ω
:
19M
Ω
:
±65ppm (±460ppm)
±23ppm (±280ppm)
±10.5ppm (±230ppm)
±8ppm (±200ppm)
±7.5ppm (±195ppm)
±8.5ppm (±200ppm)
±11.5ppm (±180ppm)
±30ppm (±635ppm)
Precision Resistor
3
Isotec RUG-Z-1R00-0.1
1
Ω
, ±0.1%, 100W
1
90-day, full-range accuracy specifications of ranges required for various measurement points.
2
90-day, ±5°C specifications of nominal resistance values shown. Use actual values for tests. Maximum uncertainty of alternate test
equipment shown in parentheses.
3
Required for verification of 3A current range. Characterize resistor to ±300ppm or better using recommended DMM before ver-
ifying 3A current measurement range.
Содержание SourceMeter 2425
Страница 1: ...Model 2425100W SourceMeter Service Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E...
Страница 3: ...TAIWAN 1FL 85 Po Ai Street Hsinchu Taiwan R O C 886 3 572 9077 Fax 886 3 572 9031...
Страница 15: ......
Страница 16: ...1 PerformanceVerification...
Страница 35: ...1 20 Performance Verification Model 2425 Service Manual...
Страница 36: ...2 Calibration...
Страница 62: ...3 RoutineMaintenance...
Страница 65: ...3 4 Routine Maintenance Model 2425 Service Manual...
Страница 66: ...4 Troubleshooting...
Страница 84: ...5 Disassembly...
Страница 92: ...6 ReplacementParts...
Страница 113: ...6 22 Replacement Parts Model 2425 Service Manual...
Страница 114: ...A Specifications...
Страница 116: ...B CommandReference...
Страница 128: ...C CalibrationPrograms...
Страница 139: ......
Страница 141: ......