Gossen Metrawatt METRAHIT ISO Insulation Tester
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Gossen Metrawatt METRAHIT ISO measures insulation resistance to 3.1 GΩ with test voltages from 50 to 1000 V, combined with multimeter and temperature functions.
Product details
| Model | METRAHIT ISO |
| Manufacturer | Gossen Metrawatt |
| Category | Insulation Resistance & Megohmmeters |
| Availability | Made to order |
Description
Overview
The Gossen Metrawatt METRAHIT ISO is a professional insulation resistance tester designed for electrical safety testing and maintenance in industrial and commercial environments. Combining insulation resistance measurement capability with multimeter functions, it enables comprehensive electrical diagnostics including voltage, current, resistance, and temperature measurements on a single instrument.
Key Features
- Insulation resistance measurement up to 3.1 GΩ with interference voltage detection
- Test voltages: 50 V, 100 V, 250 V, 500 V, 1000 V (selectable)
- Multimeter functions: voltage, resistance, frequency, capacitance
- True RMS AC and AC+DC measurements for voltage and current up to 10 kHz
- Precision temperature measurement: °C or °F via Pt100/Pt1000 sensors and type K thermocouples
- Direct current measurement: 100 nA to 10 A
- Current measurement with current clamp sensors (transformation ratio 1 mV:1 mA to 1 mV:1 A)
- Diode measurement and continuity testing with acoustic signal
- 30,000 digit resolution (4½ place) with illuminated display
- Min-Max value storage with internal clock
- Data memory for measurement recording
- Bidirectional infrared interface for PC data exchange
- IP 54 housing protection with protective cover
- Measuring categories: 1000 V CAT II / 600 V CAT III
Applications
- Electrical safety testing and insulation resistance verification
- Preventive maintenance of motors, cables, and control systems
- Industrial equipment commissioning and diagnostics
- Temperature monitoring with thermocouple sensors
Included Accessories
- Protective rubber cover
- Safety measurement cables with 4 mm test probes, 1000 V CAT II / 600 V CAT III
- Operating instructions in English and German
- CD ROM with full documentation
- DAkkS calibration certificate
- 2 AA batteries (1.5 V)
Specifications
| Insulation Resistance Range | 0 to 3.1 GΩ with interference voltage detection |
| Test Voltages | 50 V, 100 V, 250 V, 500 V, 1000 V |
| Resolution | 30,000 digits (4½ place) |
| TRMS AC/AC+DC Measurement | Voltage and current up to 10 kHz |
| Current Measurement Range | 100 nA to 10 A DC |
| Diode Measurement | IK = 1 mA, up to 5.1 V |
| Temperature Measurement | Pt100/Pt1000 sensors, type K thermocouples, °C or °F |
| Clamp Factor | Adjustable 1 mV:1 mA to 1 mV:1 A |
| Display | Illuminated with analog bar graph |
| Continuity Test | Yes, with acoustic signal |
| Data Memory | Yes, with internal clock and Min-Max storage |
| PC Interface | Bidirectional infrared with Windows software available |
| Housing Protection | IP 54 (dust and splash resistant) with cover |
| Measuring Categories | 1000 V CAT II / 600 V CAT III |
| Batteries | 2 × AA (1.5 V) |
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Gossen Metrawatt METRAHIT ISO Insulation Tester
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