2-6
Calibration
Comprehensive calibration
The comprehensive calibration procedure calibrates the DCV, DCI, ACV, ACI, ohms, and
generator functions You can also choose to calibrate only the DCV/DCI and resistance, ACV/
ACI, distortion, or generator functions.
These procedures are usually the only ones required in the field. Manufacturing calibration is
normally done only at the factory, but it should also be done in the field if the unit has been
repaired. See
Manufacturing calibration
at the end of this section for more information.
Calibration cycle
Perform comprehensive calibration at least once a year, or every 90 days to ensure the unit
meets the corresponding specifications.
Recommended equipment
Table 2-1 lists the recommended equipment you need for comprehensive, DC only, AC only,
distortion, and generator calibration procedures. You can use alternate equipment, such as a DC
transfer standard and characterized resistors, as long that equipment has specifications at least
as good as those listed in the table.
Table 2-1
Recommended equipment for comprehensive calibration
Fluke 5700A Calibrator:
DC voltage
AC voltage
(1kHz, 50kHz)*
DC current
AC current
(1kHz)
Resistance
10V:±5ppm
100V: ±ppm
10mV:±710ppm
100mV:±200ppm
1V:±82ppm
10V:±82ppm
100V:±90ppm
700V:±85ppm
10mA:±60ppm
100mA:±70ppm
1A:±110ppm
100mA:±190ppm
1A:±690ppm
2A:±670ppm
1k
Ω
:±12ppm
10k
Ω
:±11ppm
100k
Ω
:±13ppm
1M
Ω
:±18ppm
Stanford Research Systems DS-360 Ultra Low Distortion Function Generator:
1V RMS sine wave @ 137Hz, -100dB THD
1V RMS sine wave @ 844Hz, -100dB THD
Miscellaneous equipment:
Keithley 8610 low-thermal shorting plug
Double banana plug to double banana plug shielded cable
BNC to double banana plug shielded cable
* 1kHz specifications. 10mV and 700V points require 1kHz only.
All calibrator specifications are 90-day, 23°C ±5°C specifications and indicate total absolute uncertainty at
specified output.
Содержание 2015
Страница 15: ...1 Performance Verification...
Страница 34: ...2 Calibration...
Страница 60: ...3 Routine Maintenance...
Страница 64: ...4 Troubleshooting...
Страница 89: ...5 Disassembly...
Страница 100: ...5 12 Disassembly...
Страница 101: ...6 Replaceable Parts...
Страница 115: ...A Specifications...
Страница 127: ...B Calibration Reference...
Страница 149: ...C Calibration Program...
Страница 158: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...