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/222M - Analog Earth Tester - Metal Body
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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 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 Configuration Multiple range options available - specify at order
High Voltage Test 2 KV A.C. (r.m.s.) for 1 min. between electrical circuit and containing case
Insulation Resistance Test Better than 25 MΩ at 500 V D.C. between electrical circuit and containing case
Warranty 12 months against manufacturing defects only

Custom ranges and configurations can also be built against specific requirements.

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 (10/20/20/30 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 only. After-sales support is handled directly by CIE - not a distributor network. Non-standard ranges or custom specifications can be manufactured to your requirement.

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