This document contains adjustment and performance test procedures for the Fluke Model 28 II Ex Digital Multimeter (the Product or Meter).
The Fluke 28 II Ex Calibration Information serves as a technical guide for qualified personnel to perform maintenance on the Fluke Model 28 II Ex Digital Multimeter. It outlines critical safety warnings regarding electrical shock and hazardous voltages, alongside international electrical symbols used in the device.
The document details general specifications including voltage ratings, display counts, battery life, and environmental limits. Furthermore, it provides specific accuracy data for AC/DC voltage, conductance, resistance, and temperature measurements across various ranges and frequencies.
| Maximum voltage between any terminal and earth ground | 1000 V rms |
|---|---|
| Fuse for mA inputs | 0.44 A, 1000 V IR 10 kA |
| Display resolution | 6000 counts |
| Operating altitude | 2000 meters |
| Battery type | 3 AAA Alkaline batteries |
| Operating temperature coefficient | 0.05 X / °C |
Do not do the performance tests or calibration adjustment procedures unless qualified to do so.
Operating temperatures vary by battery type, but storage is rated up to 10,000 meters altitude.