High-precision insulation, low-resistance and voltage measuring device. Compact and robust for rough service applications and laboratory operation. With the METRISO TECH insulation and low-resistance measuring devices, you can quickly and efficiently test protective measures for electrical systems in accordance with:DIN VDE 0100ÖVE-EN 1 (Austria)NIV / NIN SEV 1000 (Switzerland) and other country-specific regulationsInsulation measurement in accordance with EN 61557-2 / VDE 0413 Part 2Low-resistance measurement in accordance with EN 61557-4 / VDE 0413 Part 4Voltage measurement up to 1000 V. The insulation measuring devices are suitable for the following tasks:Measuring the insulation resistance of voltage-free devices and systems up to 1000 VChecking the resistance of earthing, protective and equipotential bonding conductorsChecking the test objects for voltage-free statusTesting the conductivity of floor coverings with regard to electrostatic charges (when using shielded measuring cables) - EN 1081. Digital and analogue display, backlitIntelligent filter - measurement-dependent and precise connection when measuring high-resistance resistors in the case of: - beats, i.e. compensation of 16 2/3 Hz and 50 Hz interference - damping of capacitive influences, e.g. supply lines - suppression of electrical field influencesSignaling of dangerous contact voltage by LEDAcoustic signaling when limit values are exceededExternal voltage detection in switch position OFFOvervoltage protection - protects the instrument if it is accidentally connected to mains voltageFuse for all resistance measuring rangesNew: Electronic fuse to protect the low-resistance and resistance measurement RLO and RDevice self-test with built-in test resistor 10 MO in accordance with EN 50110 / VDE 0105-100Measurements Measuring ranges Riso 10 k ... 200 G¿ Riso U = 50, 100, 250, 500 / 1000 VR 10 O... 10 k¿ RLO 0.01 ... 10 ¿ U 0 ... 500 / 1000 V Display functions Backlit display Limit value LED Limit (green/red) for: additional acoustic signaling, limit values according to VDE 0100 Riso, RLO LED for dangerous contact voltage (when switched off) LCD symbol for external voltage Battery status display Special functions Discharging capacitive test objects Safety shutdown (UBatt < 8 V) Equipment Measuring category CAT II 1000V, III 600V Measuring category CAT III 600V, IV 300V Integrated test resistor 10 M¿ DAkkS calibration certificate included. 1 insulation and resistance measuring device 1 DAkkS calibration certificate 1 set of batteries 1 carrying strap 1 crocodile clip 1 cable set KS17-4 1 short operating instructions 1 safety supplementary sheet 1 safety information supplementary sheet 1 detailed operating instructions available for download on the Internet at www.gossenmetrawatt.com