Description
Kyoritsu KEW 4105A-H Digital Earth Tester
The Kyoritsu KEW 4105A-H is a handheld digital earth resistance tester designed to reliably measure grounding resistance and earth voltage under a variety of field conditions. It incorporates a large, easy-to-read LCD, clearly displaying measured values and warning indications. Conforming to IEC 61557 safety standards, the instrument features reinforced insulation and protective finger guards, enabling safe operation up to CAT III 600 V environments. Its dust- and drip-proof IP 54-rated housing ensures dependable performance even in adverse weather.
Equipped with both precise and simplified measurement modes, the KEW 4105A-H uses a three-terminal method for accurate earth resistance readings, while its two-terminal mode allows rapid checks without auxiliary spikes. The built-in earth voltage range alerts the user if stray voltages exceed 3 V, preventing measurement errors. An LED-illuminated test button and automatic range switching streamline operations, and an internal warning alerts when auxiliary spike resistance is too high.
The tester comes with a convenient soft carrying bag that houses the main unit, test leads, and accessories. A neck strap (M-9121) and protective case lid allow hands-free use and quick access. Powered by six AA (R6P) batteries, it provides extended field operation, while the battery-check function ensures reliability before each measurement.
Features:
- Conforms to IEC 61557 safety standard for earth resistance testers.
- Dust- and drip-proof IP 54 construction for outdoor use.
- Large LCD with automatic range identification.
- Dual-mode measurement: precise (three-terminal) & simplified (two-terminal).
- Earth voltage range with automatic warning above 3 V.
- Warns if auxiliary spike resistance exceeds permissible limits.
- Simplified probe design: both alligator clip and flat test bar compatible.
- Comes with soft carrying bag for main unit and accessories.
Specifications:
| Parameter | Specification |
|---|---|
| Safety Standards: | IEC 61010-1 (Measurement CAT III 300 V, Pollution Degree 2); IEC 61010-2-030; IEC 61010-031; IEC 61557-1,5; IEC 60529 (IP 54) |
| Ingress Protection: | Dust- and drip-proof construction, IP 54 |
| Measurement Category: | CAT III 600 V (with alligator clip) / CAT II 600 V (with flat test bar) |
| Earth Resistance Ranges: | Three-terminal method: 20 Ω, 200 Ω, 2000 Ω (auto-range) |
| Simplified (Two-Terminal) Range: | 0–2000 Ω (indicated value Re = Rx + re) |
| Earth Voltage Measurement: | 0–199.9 V (automatic warning if > 3 V) |
| Display: | Large LCD with autorange and warning icons |
| Test Current: | Approx. 20 mA (three-terminal method) |
| Power Supply: | 6 × AA (R6P) dry batteries; battery-check function |
| Operating Temperature: | –10 °C to +50 °C |
| Dimensions & Weight: | 197 × 92 × 43 mm; 500 g |
Applications:
- Power Distribution Line Testing.
- In-House Wiring System Verification.
- Electrical Appliance Grounding Checks.
- Stray Earth Voltage Detection.
- Maintenance of Protective Earthing.
Package Contents:
- 1x Main unit (KEW 4105A-H)
- 1x Precision Measurement Test Leads (MODEL 7095A)
- 1x Simplified Measurement Test Leads (MODEL 7127A)
- 1x Alligator Clip & Flat Test Bar
- 1x Protective Fingerguard
- 1x Soft Carrying Bag
- 1x Shoulder Strap (M-9121)
- 3x Auxiliary Earth Spikes
- 6x AA dry batteries (R6P)
- 1x Instruction Manual
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