S1-568 - Measuring equipment Megger - Free user manual and instructions
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| Product Type | Insulation Resistance Tester (Megohmmeter) |
| Brand | Megger |
| Model | S1-568 |
| Test Voltage | 500 V to 5,000 V (10 voltage steps) |
| Insulation Resistance Range | 10 kΩ to 10 TΩ |
| Resolution | 1 kΩ to 1 GΩ (auto-ranging) |
| Accuracy | ±5% of reading ±1 digit (up to 1 TΩ) |
| Display | Large backlit LCD with graphical capabilities |
| Measurement Modes | Spot, Timed, Polarization Index (PI), Dielectric Absorption Ratio (DAR), Step Voltage, Ramp Test |
| Guard Terminal | Yes, for eliminating surface leakage |
| Data Storage | Up to 1,000 test results with time/date stamp |
| Interface | USB-A and USB-B for data transfer and firmware updates |
| Power Supply | Rechargeable Li-ion battery (14.8 V, 4.4 Ah) or AC mains (90–264 V, 47–63 Hz) |
| Battery Life | Approximately 8 hours of continuous testing |
| Dimensions (H × W × D) | 315 × 286 × 152 mm (12.4 × 11.3 × 6.0 in) |
| Weight | 4.5 kg (9.9 lb) including battery |
| Safety Rating | CAT IV 600 V to earth, double insulation per IEC 61010-1 |
| Operating Temperature | -20 °C to 50 °C (-4 °F to 122 °F) |
| Storage Temperature | -30 °C to 70 °C (-22 °F to 158 °F) |
| Humidity | 0–95% non-condensing |
| Included Accessories | 3-lead test set, power cord, USB cable, software (PowerDB), carrying case, quick start guide |
| Maintenance | Clean exterior with damp cloth; no internal user-serviceable parts; annual calibration recommended |
| Repairability | Factory repair only; replaceable battery and fuses |
Frequently Asked Questions - S1-568 Megger
What is the maximum test voltage of the Megger S1-568?
The S1-568 can output test voltages from 500 V to 5,000 V in 10 selectable steps.
How do I charge the battery of the S1-568?
Connect the supplied AC power cord to the charger port on the side of the instrument. The battery charges automatically when mains power is applied. A full charge takes approximately 4 hours.
Can I change the test leads on the S1-568?
Yes, the test leads are detachable and can be replaced if damaged. Use only Megger approved leads rated for 5 kV to maintain safety and accuracy.
What does the GUARD terminal do?
The GUARD terminal is used to divert surface leakage currents away from the measurement circuit, ensuring accurate readings for high-resistance insulation tests.
How do I perform a Polarization Index test?
Select the PI mode using the rotary knob. The instrument will apply the test voltage for 10 minutes and automatically calculate the ratio of the 10-minute to 1-minute resistance values.
What is the maximum resistance the S1-568 can measure?
It can measure insulation resistance up to 10 TΩ (10,000 GΩ) at 5 kV.
Can I download test results to a computer?
Yes, via the USB-B port. Use the PowerDB software (included) to transfer, view, and generate reports from stored data.
Is the S1-568 safe for use on live circuits?
No, the S1-568 is designed for de-energized circuits only. Always verify the circuit is isolated before connecting the tester.
What maintenance does the S1-568 require?
Regularly clean the case with a damp cloth. The battery and fuses are user-replaceable. For calibration, return the unit to Megger or an authorized service center annually.
How do I interpret the DAR result?
The Dielectric Absorption Ratio (DAR) is the ratio of the 60-second to 30-second resistance reading. A higher DAR (typically >1.5) indicates good insulation condition.
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USER MANUAL S1-568 Megger
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Product information
Brand : Megger
Model : S1-568
Category : Measuring equipment