58452 VXIbus Universal Power Meter
4-2
Publication 21555, Rev. E, September 2002
4.3
Calibration Procedures
Perform the Calibrator Output Power Reference Level check. If the unit fails to meet the power output
specification within 0.981 mW (minimum) to 1.019 mW (maximum) limits, then proceed with the
following steps:
4.3.1
Calibrator Output Power Reference Level
The Calibrator Output power reference is factory adjusted to 1 mW
±
0.7%. To achieve this accuracy,
Giga-tronics uses a precision measurement system with accuracy to
±
0.5% (traceable to the NIST) and
allows for a transfer error of
±
0.2% for a total of
±
0.7%. If an equivalent measurement system is used for
verification, the power reference oscillator output can be verified to 1mW
±
1.9% (
±
1.2% accuracy
+
±
0.5% verification system error +
±
0.2% transfer error =
±
1.9% maximum error).
This test procedure is valid for an ambient temperature range b15 °C and +35 °C (+59 °F to
+95 °F).
To ensure maximum accuracy in verifying the Calibrator Output power reference, the following
procedure provides step-by-step instructions for using specified test instruments of known capability. If
equivalent test instruments are substituted, refer to the Key Characteristics in Table 4-1.
4.3.1.1
Equipment Required
HP 432A Power Meter
·
DVM
·
Thermistor Power Meter
·
Thermistor Mount
Figure 4-1: Calibrator Reference Level Test Setup
Summary of Contents for 58542
Page 3: ...DECLARATION OF CONFORMITY ...
Page 4: ......
Page 18: ...58542 VXIbus Universal Power Meter xiv Publication 21555 Rev E September 2002 ...
Page 20: ...58542 VXIbus Universal Power Meter xvi Publication 21555 Rev E September 2002 ...
Page 30: ...58452 VXIbus Universal Power Meter 1 10 Publication 21555 Rev E September 2002 ...
Page 92: ...58542 VXIbus Universal Power Meter 2 62 Publication 21555 Rev E September 2002 ...
Page 104: ...58452 VXIbus Universal Power Meter 3 12 Publication 21555 Rev E September 2002 ...
Page 126: ...58452 VXIbus Universal Power Meter 5 8 Publication 21555 Rev E September 2002 ...
Page 171: ......
Page 172: ......
Page 173: ......
Page 174: ...21360 Rev A has not been u ...
Page 175: ......
Page 176: ......
Page 177: ......
Page 178: ......
Page 179: ......
Page 180: ......
Page 181: ......
Page 182: ......
Page 248: ...58542 VXIbus Universal Power Meter C 2 Publication 21555 Rev E September 2002 ...