HT7051 has been developed to measure insulation resistance with test voltage programmable up to 5kVDC and measuring range up to 10TΩ which makes it very useful in any industrial application (tests on electric machines, power transformers, electric cables, electric boards, generic devices, etc.). The device allows carrying out tests in FIX (with fixed test voltages), ADJUST (programmable test voltage) and RAMP mode (programmable test voltage and application time with selection of 3 available ramp types) which define a kind of operation suitable for any situation.
Measurement of parameters such as Polarization Index (PI) and Dielectric Absorption Ratio (DAR), are duration tests which allow defining the quality of insulation. HT7051 is supplied with NiMH rechargeable battery with integrated battery charger, which allows for a remarkable duration when carrying out measurements, it is provided with internal memory for saving measurements and it is also possible to connect it to the PC to download the measured results. The whole structure has been inserted into a comfortable and resistant transport case, solid and safe for “on-site” use.
• Insulation with test voltage from 100V to 5kVDC
• Measuring range up to 10TΩ
• Measurement with fixed test voltages
• 3 test ramps, programmable in time and voltage
• SMOOTH function for steady measurement results
• Measurement of dielectric discharge current
• Measurement of polarization index (P.I.)
• Measurement of dielectric absorption ratio (D.A.R.)
• Measurement of discharge capacity
• DC/AC TRMS voltage up to 600V
• Rechargeable internal NiMH battery
• GUARD terminal
• Automatic discharge of the test object
• Display: Custom LCD with backlight and bargraph
• External supply: power 220-240V, 50/60Hz, 20VA
• Internal supply: rechargeable internal NiMH battery
• Protection fuse: T 200mA H 250V
• Battery life: >1000 tests (@ 5kV on 5MΩ)
• AutoPowerOFF: after 5 minutes’ idling
• Internal memory: 700 locations
• Serial interface: RS-232 optically insulated
• Safety: IEC/EN61010-1, IEC/EN61557-1
• Insulation: double insulation
• Pollution level: 2
• Mechanical protection: IP53 (closed case)
• Measurement category: CAT IV 600 (to earth),
• Size (LxWxH) and weight: 360x310x195 mm, approx. 3.5kg
Included accessories:
• KIT14000 Set of 3 cables with alligator clips + 2 cables with leads
• C7051 Power supply cable Europlug-Schuko with no earthing
• BORSA2000 Transport bag for accessories
• TOPVIEW Windows software for PC + cable RS-232
• ISO9000 calibration certificate
• User Manual
Optional accessories:
• C2009 RS232-USB adapter