• 4102A Soft Case Model
  • 4102A-H Hard Case Model The latest circuit design permits the instrument to operate
  •  with the minimum of influence from earth voltage
  •  and earth resistance of auxiliary earth spikes.
  • Dust and drip proof. (designed to IEC 529 IP54)
  • Earth resistance value can be read directly from the scale.
  • Designed to meet IEC 61010-1 safety standard.
  • Capable of measuring earth voltage.
  • Small and lightweight. Shock resistant new case material.
  • 2mA measuring current permits earth resistance tests
  •  without tripping earth leakage current breakers
  •  in the circuit under test.
  • Lead wire connection to C and P terminals and proper
  •  auxiliary earth resistance can be checked by “OK” lamp.
  •  Lead wire connection to C and E terminals is good
  •  when “OK” lamp is illuminated.


4102A Soft Case Model4102A-H Hard Case Model
Measurement rangesEarth Resistance: 0 – 12 Ω/0 – 120 Ω/0 – 1200 Ω
Earth Voltage [50,60Hz]: 0 – 30V AC
AccuracyEarth Resistance: ±3% of full scale
Earth Voltage: ±3% of full scale
Overload protectionEarth Resistance: 276V AC for 10 seconds
across 2 of the 3 terminals
Earth Voltage: 276V AC for 1 minute
Applicable standardsIEC 61010-1 CAT III 300V Pollution Degree 2, IEC 61557
IEC 60529 IP54
Power sourceR6 (AA) (1.5V) × 6
Dimensions105(L) × 158(W) × 70(D)mm
Weight600g approx.
Included Accessories7095A (Earth resistance test leads) × 1set
(red-20m, yellow-10m, green-5m)
8032 (Auxiliary earth spikes) × 1set
7127A (Simplified measurement probe) × 1set
R6 (AA) × 6
9121 (Shoulder strap)
Instruction Manual
Carrying case : 9084(Carrying case[Soft]:4102A only)
: 9164(Carrying case[Hard]:4102A-H only)
Optional Accessories7100A (Precision measurement cord set)

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