Gt5307b AC/DC Measurement Short Circuit Protection Digital Megger Insulation Resistance Tester

• Name: Insulation Resistance Tester
• Field: Industry, Electric Power
• Rated Voltage: 100V/250V / 500V /1000V
• Measure Range 1: 0~1.5gΩ
• Open Circuit Voltage: DC 100V +20% -0% ;DC 250V +20% -0%
• Open Circuit Voltage 2: DC 500V +20% -0%; DC 1000V +20% -0%
• Model NO.: GT5307B
• Measure Range 2: 0~5.5gΩ/0~5.5gΩ/0~5.5gΩ
• Transport Package: Box and Carrying Bag
• Specification: CE, ROHS
• Trademark: BESTONE
• Origin: China

Product Description

Insulation/Continuity Tester Introduction This instrument applies a new design and a large-scale integrated circuit to complete the measurement of parameters such as insulation resistance, DC voltage, and AC voltage; it has comprehensive functions, high accuracy, stable performance,convenient and reliable operation. It is suitable for measuring insulation resistance of various electrical equipment and insulation materials such as transformers, motors, cables,switches, electrical appliances, etc., and for maintenance, testing and verification of various electrical equipment.

Functions: 
1. Measurement of insulation resistance
2. AC measurement
3. DC measurement
4. Small resistance measurement
5. Live detection of tested resistance
6. Short circuit protection of measured resistance
7. AC and DC automatic identification
8. Measurement data is locked.
9. Polarization Index
10. Absorption ratio test
11. Automatic discharge

Specifications:
1.Technical specifications:
Technical parameters:Technical index
display: Large-screen LCD (up to 500 counts).
Over limit indication: Hi: The mark appears on insulation resistance range.
Auto range: Higher range: 500 counts Lower range;
1 count (only on insulation resistance range)
Sampling Rate:2 times 1 second.
Allowed altitude:≤2000m (for indoor use)
Operation environment:Temperature: 0°C-40°C /Humidity:≤85%
Operation environment:Temperature: -20°C -60°C 1 Humidity:≤90%
Overload protection:
Insulation resistance range: AC 1200V1 10 seconds
Voltage range: AC 720V1 10 seconds
Withstand voltage:AC 6000V (50 / 60Hz)/ 5 seconds (between circuit and periphery)
Insulation resistance::≥1000MΩ/ DC 1000V (between circuit and periphery)
power supply:DC9V (6x1.5V AA batteries)
Current:Approximately 1.5A (maximum) (normally consumption:maintained at approximately 50mA)
Battery Life: .:About 12 hours
Dimension::176x110x77mm
2.Insulation resistance test :
Rated voltage:100V/250V/500V/1000V
Measurement range: 0~1.5GΩ/0~5.5GΩ/0~5.5GΩ/0~5.5GΩ
Open circuit voltage :
DC 100V +20% -0%;
DC 250V +20% -0% ;
DC 500V +20% -0% ;
DC 1000V +20% -0%
Standard measuring current:
1mA-1.2mA at 0.1MΩ load;
1mA-1.2mA at 0.25MΩ load;
1mA-1.2mA at 0.5MΩ load;
1mA-1.2mA at 1MΩ load
Short circuit:About 2.0mA
Accuracy:±5%rdg±3dgt (above 100KΩ)
3.Small resistance measurement :
Open circuit voltage:About 5.0V
Measuring range:0-999Ω
Resolution:0.1Ω