MIG-87B

Overview

Model MIG-87B — insulation deterioration evaluation tester. Applied voltage: +1.0V to +250V (per 0.1 V). Number of channels (per board): 8ch; maximum expansion channel: 16ch. Insulation resistance measurement range: 10⁵Ω to 10¹⁴Ω (When 100 V voltage is applied). Measurement current range: 0.1pA to 500uA (5 range). Fixed range / Auto range selectable (0.1pA to 5nA / 10pA to 500nA / 100pA to 5µA / 10nA to 50µA / 100nA to 500µA). Current accuracy when 100V is applied: 5nA range: ±(5%fs +100pA); 500nA range: ±(2%fs +5nA); 5µA range: ±(1%fs +10nA); 50µA range: ±(0.5%fs +0.1µA); 500µA range: ±(0.5%fs +1µA). Bias voltage supply method: Channel-independent bias method (one power source → one channel). Bias applied voltage setting: +1.0V to +250V (per 0.1 V). Bias voltage supply amplifier: Operational amplifier type. Output noise: max. ±5 mV. Adopts series type high-voltage stabilized power supply as high-voltage amplifier stabilized power supply with high-speed response on the order of 100 µsec with high-voltage operational amplifier. Bias applied voltage accuracy: ±(0.3%+0.5V) full scale; bias voltage measurement accuracy: ±(0.3%+0.5V) full scale. Maximum testable time: 9,999 hours (s). Measurement circuit: Insulation resistance method: Low side / high side current measurement. Current measurement cable: Dual structure active guard cable. Cable open detection function: Alarm warning/measurement stop (by detecting cable disconnection). Collected data contents: Recording time, elapsed time, resistance value, applied voltage, measured current, temperature / humidity (Chamber communication option required). Applicable OS: Windows 10 compatible. Measurement mode: End mode: End at the migration occurrence point. Trigger mode: Start at migration threshold, end at threshold. Time mode: See the manual. Power supply: AC100V 50/60Hz Approx. 60VA. Dimensions: W385 × D432 × H227mm (Protruding part is not included.). Weight: Approx. 14kg. Designed for insulation deterioration evaluation testing and migration monitoring, with an end mode that terminates at the migration occurrence point. Triggering can start and end based on migration thresholds, and recorded data include recording time, elapsed time, resistance value, applied voltage, and measured current. Temperature and humidity can be recorded when the Chamber communication option is present.