Test Instrument for Insulation, Low-resistance and Voltage Measurements – with Memory
The METRISO XTRA insulation and resistance measuring instruments allow for quick and effective testing of protective measures in accordance with:
– DIN VDE 0100
– ÖVE-EN 1 (Austria)
– SEV 1000 (Switzerland)
– and regulations specific to other countries as well
Insulation measurement per EN 61557-2 / VDE 0413 part 2
Low-resistance measurement per EN 61557-4 / VDE 0413 part 4
Voltage testing and measurement up to 1000 V
Compact and rugged – for service calls under harsh conditions and laboratory use
- Test voltages in fixed increments, variable
or as a ramp 50, 100, 250, 500, 1000 V
- Polarization index and absorption ratio
- Intelligent filter – precise and measurement-dependent activation for the measurement of very high resistances
– beating, i. e. compensation of 16 2/3 Hz and 50 Hz interference
– attenuation of capacitive influences from power cables, etc.
– suppression of electric field influences
- Signalling of dangerous contact voltage
- Acoustic signalling when limit value is exceeded
- Detection of interference voltage in switch position OFF
- Overvoltage protection – protects the instrument in the event of inadvertent connection to mains power
- Fuse link for all resistance measuring ranges
- New: Electronic fuse for protection of the low-resistance measurement RLO also protects the fuse link in the low-resistance measuring range in the event of faulty operation
- One measuring point self-test with test resistance of 10 MΩ per EN 50110 / VDE 0105-100
- Backlit dot matrix display for measured and limit values
- Timer function 1 s … 100 min
- Guard terminal for compensating surface current
The insulation measuring instruments are suitable for the following tasks:
- Measurement of insulation resistance at voltage-free devices and systems, up to 1000 V
- Testing of the resistance of earthing conductors, protective conductors and equipotential bonding
- Checking of test objects for absence of voltage
- Testing of electrostatic discharge capacity at floor coverings (using shielded measurement cables) – EN 1081
- With the so-called 1 mA test per DIN VDE 0845/EN 61645, the instrument also allows to perform on-site tests of the response voltage of overvoltage components (varistors, Zener diodes, etc.) of requirement categories B and C / SPD Type 2 and 3) and to evaluate the test results in accordance with manufacturer‘s data.
Practical sets wit remote triggering and ever-ready case
