— Earth Resistance · Analog & Digital
CIE/222M Analog Earth Tester — Metal Body
Hand-driven analog earth tester — 3-terminal (earth resistance) and 4-terminal (earth resistance + soil resistivity). ±5% accuracy per IS: 9223/1979.
CIE® Guarantee
- CIE® Registered Trade Mark
- Calibrated Before Despatch
- 12-Month Warranty
- Made in India
- Custom Ranges Available
About This Instrument
The CIE/222M is a hand-driven generator-type earth tester for direct measurement of earth resistance in power circuits, telecommunications, railway electrification, domestic and industrial installations, and lightning protection systems. Available in 3-terminal type (earth resistance) and 4-terminal type (earth resistance plus soil resistivity). The 4-terminal type is designed for soil investigation work including geological, agricultural, and civil engineering surveys (tunnels, drainage, sewerage, tube railways). Accuracy ±5% per IS: 9223/1979. A centrifugal governor holds output voltage constant regardless of crank speed. Measurement is unaffected by stray AC currents or back e.m.f. of earth electrolysis.
Technical Specifications
| Specification | Value |
|---|---|
| Body | Anti-magnetic aluminium |
| Generator Type | Hand-driven A.C. generator with centrifugal governor |
| Terminal Types | 3-terminal (earth resistance) or 4-terminal (earth resistance + soil resistivity) |
| Scale Length | 80 mm (approx.) |
| Accuracy | ±5% (as per IS: 9223/1979) |
| Generator Rotation Speed | 160 r.p.m. |
| Weight | 2.5 kg (approx.) |
| Dimensions (L×W×H) | 110 × 128 × 190 mm (approx.) |
| Range Configurations | Single / Dual / Triple / Four / Five range |
| Warranty | 12 months against manufacturing defects |
Build to Order
Specify the range configuration and terminal type (3-terminal or 4-terminal) when ordering. Other ranges manufactured to specific requirement.
Single Range Options
| Range |
|---|
| Any range from 0–1 Ω up to 0–5 Ω |
| 0–10 Ω up to 0–100 Ω |
| 0–200 Ω up to 0–10000 Ω |
Dual Range Options
| Range |
|---|
| 0–1 / 10 Ω |
| 0–2 / 10 Ω |
| 0–3 / 30 Ω |
| 0–10 / 100 Ω |
Triple Range Options
| Range |
|---|
| 0–1 / 10 / 100 Ω |
| 0–2 / 10 / 100 Ω |
| 0–2 / 20 / 200 Ω |
| 0–3 / 30 / 300 Ω |
| 0–10 / 100 / 1000 Ω |
Four Range Options
| Range |
|---|
| 0–1 / 10 / 100 / 1000 Ω |
| 0–2 / 10 / 100 / 1000 Ω |
| 0–10 / 100 / 1000 / 10000 Ω |
Five Range Options
| Range |
|---|
| 0–1 / 10 / 100 / 1000 / 10000 Ω |
| 0–2 / 10 / 100 / 1000 / 10000 Ω |
Additional Options
- Testing kit — 3-terminal: 2 M.S. spikes (45 cm), 3 flexible-wire spools (10/20/30 m), 1 hammer, carrying bag — at extra cost
- Testing kit — 4-terminal: 4 M.S. spikes (45 cm), 4 flexible-wire spools (10/20/30 m), 1 hammer, carrying bag — at extra cost
- Carrying case for earth tester — at extra cost
- Any other range — on request
Key Applications
- Earth resistance measurement for power circuits and lightning protection systems
- Telecommunications and railway electrification earthing checks
- Domestic and industrial electrical installation earthing
- 4-terminal type: soil resistivity surveys for civil engineering projects (tunnels, drainage, sewerage)
12-Month Warranty · Direct After-Sales Support
Every CIE® instrument carries a 12-month warranty against manufacturing defects. After-sales support is handled directly by CIE — not a distributor network. Non-standard ranges or custom specifications can be manufactured to your requirement.
Interested in the CIE/222M? Get a quote by email.
Email us with your model, quantity, and specification — we respond within one business day.