GT5306A Digital Ohm Meter High Tension Megger with 1000V Voltage Insulation Resistance Measurement and LCD Back-light
GT5306A 1000V Voltage Insulation Resistance Tester Digital Ohm Meter high tension megger AC Voltage Insulation tester.
This instrument features a DC voltage converter with low loss, high variation ratio, and inductive energy storage, converting 9V voltage to 250V/1000V DC voltage. It utilizes digital electric bridge technology to measure insulation resistance and offers portability, wide measuring range, backlight display, and data holding capabilities. The instrument can also measure electric supply and features straps for convenient two-handed operation.
With its fashionable appearance and stable performance, it is suitable for measuring electrical machinery, cable, electromechanical equipment, telecom equipment, electric power facilities, and other insulation resistance applications.
- Insulation Resistance Measurement
- AC Current Measurement
- DC Current Measurement
- Small Resistance Measurement
- Measured Data Holding
- Low Battery Indication
- LCD Back-light
- External DC Power Supply (DC9V 1.5A)
- Over-limit Alarm
- Red Alarm Light with Buzzer Alarm
- High Voltage Alarm
- Accuracy: ±(a% + least significant digit)
- Environment temperature for accuracy: 23±5℃
- Relative humidity: <75%
- Calibration guarantee period: 1 year from manufacture date
- Voltage input impedance: 1MΩ
- AC voltage frequency response: 50~200Hz
| Specification | Technical Index |
|---|---|
| Display | 3.5 digit LCD, maximum reading "1999" |
| Over Limit Indication | When upper limit exceeded, only top digit displays "1" |
| Sampling Rate | Approximately 3 times/second |
| Allowable Altitude | <2000 meters |
| Additional Temperature Coefficient | 0.15 × specified accuracy/°C (<18°C or >28°C) |
| Operating Environment | For indoor use, pollution degree 2 |
| Operation Environment | -15℃~55℃, relative humidity <75%RH |
| Storage Environment | -40℃~60℃, relative humidity <90%RH |
| Overload Protection | 100mA/60V resettable fuse |
| Low Battery Indication | Battery symbol display when power is low |
| Power Supply | 6×1.5V "AA" batteries or external DC 9V power supply |
| Current Consumption | No-load power consumption 300mW when testing |
| Dimension | 176×110×77mm |
| Weight | 580g (including battery) |
Basic Function:
| Basic Function | Measuring Range | Basic Accuracy |
|---|---|---|
| Output Voltage | 250V / 500V / 1000V | ±10% |
| Test Current | 250V (R=250kΩ) 1mA 500V (R=500kΩ) 1mA 1000V (R=1MΩ) 1mA |
±10% |
| Insulation Resistance | 250V: 1MΩ ~ 200MΩ 500V: 1MΩ ~ 200MΩ 1000V: 10MΩ ~ 2000MΩ |
± (4%±2) |
| Short-circuit Current | < 1.8mA | — |
| Median Resistance | 250V / 500V: 100MΩ 1000V: 1000MΩ |
— |
| Resistance, Continuity Test | 0Ω ~ 2kΩ, buzzer sounds when <50Ω, Test Current: 1mA | ± (0.8%±6) |
| DC Voltage Measurement | 0V ~ 1000V | ± (0.5%±6) |
| AC Voltage Measurement | 0V ~ 750V | ± (1%±6) |
| Jack Position | Insulation Resistance: E and L Voltage, Resistance: V/Ω and G |
— |
Further explanation Median resistance——the lower limit of resistance measurement to ensure that the voltage at both ends
of the measurement is not less than 90% of the nominal value of the test voltage.
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