KYORITSU 4102A Earth Tester (Made In THAILAND)
The KYORITSU 4102A Earth Tester (Made In THAILAND) is an analog earth resistance tester designed to measure grounding integrity in electrical systems. It employs the fall-of-potential method, injecting AC current between earth electrodes to calculate resistance (Rx = V/I). The device ensures safety compliance with IEC 61010 and IEC 61557 standards, prioritizing user protection during operation.
Built with IP54-rated dust/drip-proof housing, it withstands harsh weather and industrial environments. Safety features include a protective fingerguard to prevent contact with live parts, overload protection (276V AC/DC), and warnings against use in flammable or wet conditions. Its insulation resistance (10MΩ at 1000V) and 3470V withstand voltage further enhance reliability.
The tester uses an analog taut-band meter for clear scale readings and includes an “OK” lamp to instantly verify auxiliary earth resistance validity. Battery-powered (6x AA), it offers mechanical zero adjustment and voltage checks to maintain accuracy. Its compact size (105x158x70mm) and soft carrying case facilitate fieldwork.
Features:
- IP54-rated dust/drip-proof construction for adverse weather use.
- OK lamp visually confirms valid auxiliary earth resistance and test lead continuity.
- Dual measurement modes: Precision (3-wire) and Simplified (2-wire using existing electrodes).
- Protective fingerguard shields users from shock during operation.
- Battery check function with low-power indicator.
- Analog taut-band meter for stable, clear readings.
- Simplified probe includes alligator clip and flat test bar for versatile connections.
- Soft carrying case for accessory storage and portability.
Specifications:
| Parameter | Details |
|---|---|
| Earth Voltage Range: | 0-30V AC, ±3% full scale |
| Earth Resistance Ranges: | 0-12Ω (x1), 0-120Ω (x10), 0-1200Ω (x100); ±3% full scale |
| Measurement Current: | ~3mA (x1Ω), ~2mA (x10Ω), ~1mA (x100Ω) at 820Hz |
| Overload Protection: | 276V AC/DC for 10 seconds |
| Power Supply: | 6x R6P (AA) batteries |
| Dimensions & Weight: | 105x158x70mm; 600g |
| Operating Conditions: | 0-40°C, ≤85% RH (indoor, ≤2000m altitude) |
| Safety Standards: | IEC 61010-1 (CAT III 300V), IEC 61557, IP54 (IEC 60529) |
Applications:
- Power distribution line grounding tests.
- In-house electrical wiring system checks.
- Electrical appliance earth resistance validation.
Package Contents:
- 1x M-7095A Test Leads
- 2x M-8032 Auxiliary Earth Spikes
- 1x M-7127A Simplified Probe (alligator clip + flat test bar)
- 1x M-9084 Carrying Case
- 1x Strap Belt
- 1x Instruction Manual
- 6x R6P (AA) Batteries