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Cropico MTS

Easy to use milli ohmmeter 4 terminal test standard with + and - full scale values

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Overview

Features

Downloads

True 4 terminal standards

Switch selectable values

Polarity reversal switch

Supplied complete with calibration certificate

Two models available: MTS1A: 1 milli ohm to 100 kilo ohm and MTS2: 400 milli ohm to 400 kilo ohm

Cropico MTS Milliohmmeter

This milliohmmeter’s test standards are designed for the simple and easy calibration of low resistance ohmmeters and Kelvin / Thomson bridges.

The four terminal resistance values are switch selected and provision is made + 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 milli ohm to 100 kilo ohm and the MTS2 has 10 values from 400 milli ohm to 400 kilo ohm 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 aluminum case with tilt handle. The internal standards are manufactured from premium quality resistance wire with low temperature and load coefficients. The units are supplied complete with a calibration certificate.

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
1Ω	± 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
4Ω	±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