HV Tester 25 kV - Measuring equipment Megger - Free user manual and instructions
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| Product Type | High Voltage Insulation Tester |
| Brand | Megger |
| Model | HV Tester 25 kV |
| Maximum Test Voltage | 25 kV DC |
| Insulation Resistance Range | Up to 10 TΩ |
| Test Voltage Steps | 250 V, 500 V, 1000 V, 2500 V, 5000 V, 10000 V, 25000 V |
| Measurement Functions | Insulation Resistance, Polarization Index (PI), Dielectric Absorption Ratio (DAR), Capacitance, Leakage Current |
| Display | Large backlit LCD with graphical display |
| Power Supply | Rechargeable Li-ion battery, mains adapter |
| Battery Life | Approximately 8 hours of continuous testing |
| Dimensions (H x W x D) | 320 x 280 x 150 mm |
| Weight | 4.5 kg |
| Safety Rating | CAT IV 600 V, CAT III 1000 V |
| Protection Class | IP54 (dust and splash proof) |
| Data Storage | Internal memory for up to 1000 test results |
| Interface | USB and Bluetooth for data transfer |
| Operating Temperature | -10°C to +50°C |
| Storage Temperature | -20°C to +60°C |
| Accessories Included | Test leads, alligator clips, mains adapter, carrying case |
| Maintenance | Calibration recommended annually; clean with dry cloth |
| Repairability | Serviceable by Megger authorized centers; spare parts available |
Frequently Asked Questions - HV Tester 25 kV Megger
What is the maximum output voltage of the Megger HV Tester 25 kV?
The maximum output voltage is 25 kV DC. The tester offers multiple preset voltage steps for insulation testing.
How do I connect the test leads for a typical insulation resistance test?
Connect the red test lead to the LINE terminal and the black lead to the GUARD or EARTH terminal as required. Ensure the device under test is de-energized.
What safety precautions should be taken when using the HV Tester 25 kV?
Always use insulated gloves and safety goggles. Ensure the unit is properly grounded. Do not touch the test leads during a test. Discharge the device under test after completion.
Can the instrument measure capacitance?
Yes, the HV Tester 25 kV can measure capacitance of the device under test, which is useful for assessing cable properties.
How do I transfer data from the tester to a PC?
You can transfer data via USB cable or Bluetooth to Megger's PowerDB software for analysis and reporting.
What is the battery life and how do I charge it?
The Li-ion battery provides about 8 hours of continuous testing. Charge using the supplied mains adapter; a full charge takes approximately 4 hours.
Is the HV Tester 25 kV suitable for field use?
Yes, it has an IP54 rating for dust and splash resistance and a rugged design, making it suitable for outdoor and industrial environments.
How often should the instrument be calibrated?
Megger recommends annual calibration to ensure accuracy. Calibration can be done at Megger service centers or accredited labs.
What do PI and DAR stand for and how are they used?
PI stands for Polarization Index and DAR for Dielectric Absorption Ratio. They are ratios of insulation resistance measured at different times, used to assess insulation quality.
Can I replace the test leads if damaged?
Yes, replacement test leads are available from Megger or authorized dealers. Ensure you use leads rated for 25 kV to maintain safety.
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USER MANUAL HV Tester 25 kV Megger
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Product information
Brand : Megger
Model : HV Tester 25 kV
Category : Measuring equipment