Instrotech Ltd - Cropico Milliohmmeter Test Standard
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Cropico MTS1A, MTS2 & DO5000-CS Test Standard For DO7010

Designed for calibration of the milliohmmeters

Cropico MTS1A, MTS2 & DO5000-CS Test Standard For DO7010width="180" height="70"
Cropico MTS1A, MTS2 & DO5000-CS Test Standard For DO7010
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1,441.00  (1,729.20  Inc. VAT)
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Instrotech Code: CROMTS      -     1,441.00

The Milliohmmeter Test Standards are designed for the simple and easy calibration of low resistance ohmmeters and Kelvin / Thomson bridges. The true four terminal resistance values are switch selected and provision is made for + and - full scale values. A four terminal zero value may also be selected, thus making zero and full scale calibration of instruments simplicity itself. Two models are available, the MTS1A which has 11 values from 1 mohm to 100 Kohm and the MTS2 which has 10 values from 400 micro-ohm to 400 Kohm, making it ideally suited for the calibration of digital instruments with a long scale length of 4000 or 6000 count.

The Test Standards are housed in a rugged bench portable aluminium case with tilt handle. The internal standards are manufactured from premium quality resistance wire with low temperature and load coefficient. For the selection of the standards, a special switch of our own construction is used ensuring a long and trouble free operating life. The units are supplied complete with a calibration certificate.

There are three models available in this range, please select the required model from the drop-down menu above:

  • Cropico MTS1A: 1mΩ to 100kΩ
  • Cropico MTS2: 400mΩ to 400kΩ
  • Cropico DO5000-CS: Calibration standard for the Cropico DO5000


MTS1A Specifications
  • Resistance Value: 100kΩ, 10kΩ, 1kΩ, 100Ω, 19Ω, 10Ω, 1.9Ω, 1Ω, 100mΩ, 10mΩ &1mΩ
  • Uncertainty of Adjustment @ 20C: +/- 0.1% (100kΩ - 100mΩ), +/- 0.5% (10mΩ to 1mΩ)
  • Watts Max W: 0.1 (100kΩ to 10kΩ), 0.6 (1kΩ to 100Ω), 1.43 (19Ω), 0.45 (10Ω), 1.475 (1.9Ω), 0.56 (1Ω), 0.525 (100mΩ), 0.25 (10mΩ), 0.1 (1mΩ)
  • Current Max A: 1mA (100kΩ), 3mA (10kΩ), 25mA (1kΩ), 75mA (100mΩ), 150mA (19Ω), 212mA (10Ω), 500mA (1.9Ω), 750mA (1Ω), 2.5A (100mΩ), 5A (10mΩ), 10A (1mΩ)
  • Typical Temperature Coefficient: <10ppm

MTS2 Specifications

  • Resistance Value: 400kΩ, 40kΩ, 4kΩ, 400Ω, 40Ω, 4Ω, 400mΩ, 40mΩ, 4mΩ & 400Ω
  • Uncertainty of Adjustment @ 20C: +/- 0.01% (400kΩ - 40mΩ), +/- 0.1% (4mΩ to 400Ω)
  • Watts Max W: 0.1 (400kΩ to 40mΩ), 0.4 (4mΩ), 0.04 (400Ω)
  • Current Max A: 0.45mA (400kΩ), 1.5mA (40kΩ), 5mA (4kΩ), 15mA (400Ω), 50mA (40Ω), 150mA (4Ω), 500mA (400mΩ), 1.5A (40mΩ), 10A (4mΩ), 10A (400Ω)
  • Typical Temperature Coefficient: <10ppm

DO5000-CS Specifications

  • Resistance Range: 30kΩ, 3kΩ, 300Ω, 30Ω, 3Ω, 300mΩ, 30mΩ, 3mΩ
  • Nominal Accuracy: +/- 0.01% (30kΩ to 30Ω), +/- 0.05% (3Ω to 30mΩ), +/- 1% (3mΩ)
  • Certified Accuracy: +/- 0.01% (30kΩ to 30mΩ), +/- 0.02% 3mΩ)
  • Current Ranges: 100mA, 1mA, 10mA, 100mA, 1A, 10A - Normal Accuracy +/- 0.05%
  • Temperature: 0C, Nominal Accuracy +/- 1%, Certified Accuracy +/- 0.05%; 100C +/- 1%, Nominal Accuracy +/- 1%, Certified Accuracy +/- 0.05%
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