Analog Earth Tester, 3-Terminal - Metal Body

About.

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.

• 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)

Specifications.

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 - choose the option above

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