KYORITSU KEW 3166 Insulation Tester
The KEW 3166 arrives with the plain, confident presence of a classic analogue instrument: an angled faceplate, a clear printed scale, and a rugged housing that looks like it’s built to survive being carried and used every day. Its analogue needle gives readings in a single, continuous sweep that many technicians find reassuringly immediate there’s no numerical lag, just a live reaction to changing conditions.
Handling the tester feels deliberate: chunky controls and a logical layout make single-handed operation easy while the meter sits stable in the palm. The scale markings are expanded for quick eyeballing of megohm values, and the balance of weight and size speaks of a tool intended for on-site troubleshooting rather than delicate bench use.
Overall, the KEW 3166 projects reliability and simplicity. It trades flashy bells and whistles for tactile clarity: the needle, the scale, and a few essential controls that let an experienced user move fast. In environments where speed and ruggedness matter rooftops, switchrooms, or service vans its straightforward, purposeful design reduces friction and keeps focus where it belongs: on the measurement.
Features:
- Analogue needle display for immediate, intuitive readings.
- Expanded megohm scale for easy visibility of insulation resistance.
- 1000 V DC test capability (built into the model’s operation).
- Sturdy, impact-resistant housing designed for field use.
- Built-in AC voltmeter scale for quick AC voltage checks.
- Simple, tactile controls and a prominent test button for one-hand operation.
Specifications:
| Specification | Value |
|---|---|
| Model: | KEW 3166 (Analogue Insulation Tester). |
| DC test voltage (insulation): | 1000 V. |
| Maximum effective scale value (insulation): | 2000 MΩ. |
| Mid-scale value: | 50 MΩ. |
| First effective measuring range (insulation): | 2 to 1000 MΩ. |
| Accuracy (insulation): | ±5% rdg (first range); ±10% rdg (second effective range 1/2000). |
| AC voltage measurement: | 600 V AC (AC voltmeter scale); accuracy ≈ ±3% of full scale. |
| Power source: | 4 × R6 (AA) 1.5 V batteries. |
| Dimensions (L×W×D): | 90 × 137 × 40 mm. |
| Weight: | Approx. 330 g. |
| Accessories (standard): | Test leads (part 7025) typically included; cord case/strap referenced by the manufacturer. |
| General notes: | Analogue (needle) readout; robust field housing; manual and safety info in official instruction manual. |
Applications:
- Periodic insulation resistance checks on motors, transformers and switchgear.
- Installation and commissioning insulation verification.
- Maintenance checks for cables and electrical distribution systems.
Package Contents:
- 1x Test leads (model 7025)
- 1x Cord case (optional/accessory 9074) (when included or sold as kit).
- 1x Shoulder strap (accessory 9123) (when provided).
- 4x R6 / AA batteries
- 1x Instruction manual
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