Ground/Insulation Resistance Tester
LQ2000 Clamp Earth Resistance Tester: Loop Measurement & Leakage Detection
The LQ2000 Clamp Type Earth Resistance Tester revolutionizes grounding system diagnostics with its non-disruptive loop measurement technology. Designed for power grids, oil fields, and hazardous environments, it eliminates the need to disconnect grounding leads or use auxiliary electrodes.
Technical parameter
power supply | 6VDC(4 no.5 alkaline dry batteries) |
operating temperature | -10℃-55℃ |
Relative humidity | 10%-90% |
LCD | 4-digit LCD digital display, length and width 47×28.5mm |
clamp table weight (including battery) | 1130g |
clamp table size | length 275mm, width 85mm, thickness 56mm |
protection level | double insulation |
structure characteristics | clamping mode |
range shift | Automatic |
external magnetic field | <40A/m |
External electric field | <1V/m |
single measurement time | 1 SEC |
resistance measurement frequency | >1KHz |
highest resolution resistance measurement | 0.001Ω |
Resistance measurement range | 0.01-1000Ω |
* current measurement range | 0-30A(type C) |
measured current frequency | 50/60Hz |
stored measurement data | 99units |
setting range of resistance alarm critical value | 1-199Ω |
* setting range of current alarm critical value | 1-499mA(type C) |
Key Features
1. Advanced Measurement Capabilities
Wide Resistance Range: 0.01Ω–1000Ω with 99-group data storage
Leakage Current Detection: Measures neutral line/leakage currents (unique to clamp-type testers)
Loop Testing: Evaluates entire grounding system resistance without lead disconnection
2. User-Centric Design
Instant Operation: No boot delay—starts testing immediately
Compact & Handheld: 30% smaller than traditional models (6-button interface)
Sound/Light Alarms: Visual/audible alerts for interference or fault detection
3. Industrial Durability
Explosion-proof for flammable environments (oil fields/gas stations)
Low power consumption (
<50ma working="" current="">Optional long/round jaws for different conductor types
Applications
Ideal for:
Power Utilities: Substation grounding grid maintenance
Telecom Towers: Lightning protection system checks
Oil & Gas: Hazardous area compliance testing
Industrial Plants: Equipment grounding fault detection
Technical Advantages Over Traditional Methods
No Lead Disconnection: Test live systems safely
Comprehensive Readings: Measures combined grounding body + lead resistance
Interference Filtering: Identifies commercial power noise (50Hz/100Hz)
Note: Complies with IEC 62446 for photovoltaic system grounding tests and ATEX directives for explosive atmospheres.