Cropico MTS

Milliohmmeter with 4 terminal test standard and +/- full scale values

  • MTS1A: 1mOhm to 100kOhm and MTS2: 400 uOhm to 400 Kohm
  • Temperature Supplied Complete with Calibration Certificate <=2 ppm/K
  • Polarity Reversal Switch
Cropico MTS
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Cropico MTS

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Milliohmmeter 4 Terminal Test Standards MTS

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.

Cropico MTS
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Technical specification


MTS1/A

Resistance Value (Ohms ) Uncertainty of adjustment at 20° C Dissipation Max Watts Current Max A Typical Temp. Coeff. 15 to 20°C
100kΩ ± 0.01% 0.1 1 mA <10 ppm
10kΩ ± 0.01% 0.1 3 mA <10 ppm
1kΩ ± 0.01% 0.6 25 mA <10 ppm
100Ω ± 0.01% 0.6 75 mA <10 ppm
19Ω ± 0.01% 0.43 150 mA <10 ppm
10Ω ± 0.01% 0.45 212 mA <10 ppm
1.9Ω ± 0.01% 0.475 500 mA <10 ppm
± 0.01% 0.56 750 mA <10 ppm
100 mΩ ± 0.01% 0.625 2.5 A <10 ppm
10 mΩ ± 0.05% 0.25 5 A <10 ppm
1 mΩ ± 0.05% 0.1 10 A <10 ppm

 
MTS2

Resistance Value Uncertainty of Adjustment @ 20°C Watts Max W Current Max A Typical Temp Coefficient
400kΩ ±0.01% 0.1 0.45mA <10ppm
40kΩ ±0.01% 0.1 1.5mA <10ppm
4kΩ ±0.01% 0.1 5mA <10ppm
400Ω ±0.01% 0.1 15mA <10ppm
40Ω ±0.01% 0.1 50mA <10ppm
±0.01% 0.1 150mA <10ppm
400mΩ ±0.01% 0.1 500mA <10ppm
40mΩ ±0.01% 0.1 1.5A <10ppm
4mΩ ±0.1% 0.4 10A <10ppm
400μΩ ±0.1% 0.04 10A <10ppm

 
Working Temperature

+5 to +40°C

 

Storage Temperature

+5 to +50°C


Dimensions

215mm x 88mm x 250mm (W H D) approx


Mass

2.8kg approx


Terminal

4mm binding posts will accept spade tags and 4mm banana plugs. Low thermal E.M.F. types are used for the potential terminals


Switches

Combination switch with low thermal contacts for the potential selection and low resistance contacts for the current selection

 

 

Downloads

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