Fluke 8842a instruction manual Instrument Type, Minimum Specifications Recommended Model

Maintenance 6

INTRODUCTION

WARNING

THESE SERVICE INSTRUCTIONS ARE FOR USE BY QUALIFIED

PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK, DO NOT

PERFORM ANY PROCEDURES IN THIS SECTION UNLESS YOU

ARE QUALIFIED TO DO SO.

6-1. INTRODUCTION

This section presents maintenance information for the 8842A. The section includes a performance test, a calibration procedure, troubleshooting information, and other general service information.

Test equipment recommended for the performance test and calibration procedure is listed in Table 6-1. If the recommended equipment is not available, equipment that meets the indicated minimum specifications may be substituted.

INSTRUMENT

TYPE

Table 6-1. Recommended Test Equipment

MINIMUM SPECIFICATIONS RECOMMENDED MODEL

DC Calibrator

Resistor Calibrator

DC Current Source

Oscilloscope

Digital Multimeter

PREFERRED:

Voltage Range: 0-1000V dc

Voltage Accuracy: 10 ppm

Absolute Linearity: ±1.0 ppm

ALTERNATIVE:

(Must be used with Kelvin- Varley Voltage Divider) Voltage Range: 0-1000V dc

Voltage Accuracy: 20 ppm + 20 ppm of range

Kelvin-Varley Voltage Divider: Ratio Range: 0-1.0

Absolute Linearity: ± 1 ppm of input at dial setting

Resistance Accuracy: 0.0005%

Accuracy: ±0.025%

General porpose, 60 MHz, with 10 MΩ probe

Voltage Accuracy :0.01% in V dc

1.0% for 1V in V ac @ 100 kHz Input Impedance:

10 MΩ or greater in V dc;

1MΩ or greater in parallel with <100 pF in V ac

Fluke 5700A or Fluke 5440A

Fluke 720A

Fluke 720A

Fluke 5700A or Fluke 5450A, ESI DB62

Fluke 5700A or Fluke 5100B

Philips PM3055 or PM3355

Fluke 8842A (with AC Option –09)

6-3