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User Manual PDF | Data Sheet PDF
Intrinsically Safe True-RMS Digital Multimeter for Hazardous Zones
The Fluke 28 II EX Intrinsically Safe Digital Multimeter delivers full troubleshooting capabilities for explosive and hazardous environments. Certified under ATEX, IECEx, and NEC standards, this IP67 waterproof and dustproof instrument equips engineers to work safely in Zone 1, Zone 2, Class I, and Division 1 locations without compromising measurement accuracy or instrument durability.
Industrial Use Cases
- Petrochemical and Refining Maintenance: Safe electrical diagnostics on pumps, valves, and processing control circuits in explosive gas or vapor atmospheres.
- Pharmaceutical Manufacturing Inspection: Precision monitoring of processing equipment and variable speed motor drives (VSDs) using the integrated low-pass filter.
- Chemical Plant Automation: Measuring voltage, frequency, and conductance to evaluate insulation degradation and high resistance leakage in hazardous zones.
Key Specifications
| Parameter | Range / Detail |
|---|---|
| DC Voltage | 0.1 mV to 1000 V (Accuracy: 0.05% + 1) |
| AC Voltage (True-RMS) | 0.1 mV to 1000 V (Accuracy: 0.7% + 4) |
| AC/DC Current | 0.1 uA to 10 A |
| Safety Certifications | ATEX II 2G Ex ia IIC T4 Gb, IECEx Ex ia IIC T4 Gb |
| IP Rating / Drop Resistance | IP67 dustproof/waterproof, 3 m drop test |
| Temperature Range | -200.0 °C to 1090 °C |
| Display Counts | 6000 counts / 19,999 high-resolution mode |
Package Contents
- Fluke 28 II EX Intrinsically Safe Digital Multimeter
- Reversible protective holster
- Test leads and alligator clips
- Three AAA batteries (installed)
- User manual and certification documents