A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the IDEAL 61-920 Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.


   IDEAL 61-920   Description / Specification:    
IDEAL 61-920 Ground Clamp Resistance Meter

The Ideal 61-920 is a digital clamp-on ground resistance tester. It can measure the ground resistance
by simply clamping around the ground conductor, ground rod or equipment ground conductor. The 61-920 also measures leakage AC current up to 30 AAC. It has a liquid crystal display with a maximum count of 2099.

Earth resistance (Auto-ranging).
Range 20Ω;
  Measuring range 0.00 to 20.99Ω: Resolution 0.01Ω, Accuracy ±1.5% ±0.05Ω.
Range 200Ω;
  Measuring range 16.0 to 99.9Ω: Resolution 0.1Ω, Accuracy ±2% ±0.5Ω.
  Measuring range 100.0 to 209.9Ω: Resolution 0.1Ω, Accuracy ±3% ±2Ω.
Range 1200Ω;
  Measuring range 160 to 399Ω: Resolution 1Ω, Accuracy ±5% ±5Ω.
  Measuring range 400 to 599Ω: Resolution 1Ω, Accuracy ±10% ±10Ω.
  Measuring range 600 to 1260Ω: Resolution 10Ω.

AC current (ACA) (sine wave) (50Hz/60Hz) (Auto ranging).
Range 100 mA;
  Measuring range 0.0 to 104.9 mA: Resolution 0.1 mA, Accuracy ±2% ±0.7 mA.
Range 1000 mA;
  Measuring range 80 to 1049 mA: Resolution 1 mA, Accuracy ±2%.
Range 10 A;
  Measuring range 0.80 to 10.49 A: Resolution 0.01 A, Accuracy ±2%.
Range 30 A;
  Measuring range 8.0 to 31.45 A: Resolution 0.1 A, Accuracy ±2%.


Related Bench Equipment Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

dBc (decibels relative to the carrier) is the power ratio of a signal to a carrier signal, expressed in decibels. If the dBc figure is positive, then the relative signal strength is greater than the carrier signal strength. If the dBc figure is negative, then the relative signal strength is less than carrier signal strength.

Load Regulation
Load regulation is the capability to maintain a constant voltage (or current) level on the output channel of a power supply despite changes in the supply's load (such as a change in resistance value connected across the supply output).

Power Linearity
When changing the power level and measuring the differences (in dB) between actual and displayed power levels, the power linearity is ± half the span (in dB) between the maximum and the minimum value of all differences.

Settling Time
Settling time of an output device is the time elapsed from the application of an ideal instantaneous step input to the time at which the amplifier output has entered and remained within a specified error band, usually symmetrical about the final value.

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