MTS
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MTS Data Sheet
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.
MTS1/A
|
Resistance Value ( Ω ) |
Uncertainty of adjustment at 20 °C |
Dissipation Max Watts |
Current Max A |
Typical Temp. Coeff. 15 °C 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 |
|
100mΩ |
± 0.01% |
0.625 |
2.5 A |
<10 ppm |
|
10mΩ |
± 0.05% |
0.25 |
5 A |
<10 ppm |
|
1mΩ |
± 0.05% |
0.1 |
10 A |
<10 ppm |
MTS2
|
Resistance Value ( Ω ) |
Uncertainty of adjustment at 20 °C |
Dissipation Max Watts |
Current Max A |
Typical Temp. Coeff. 15 °C to 20 °C |
|
40kΩ |
± 0.01% |
0.1 |
1.5 mA |
<10 ppm |
|
4kΩ |
± 0.01% |
0.1 |
5 mA |
<10 ppm |
|
400Ω |
± 0.01% |
0.1 |
15 mA |
<10 ppm |
|
40Ω |
± 0.01% |
0.1 |
50 mA |
<10 ppm |
|
4Ω |
± 0.01% |
0.1 |
150 mA |
<10 ppm |
|
400mΩ |
± 0.01% |
0.1 |
500 mA |
<10 ppm |
|
40mΩ |
± 0.01% |
0.1 |
1.5 A |
<10 ppm |
|
4mΩ |
± 0.1% |
0.4 |
10 A |
<10 ppm |
|
400 µΩ |
± 0.1% |
0.04 |
10 A |
<10 ppm |
MTS Technical Specifications
|
Terminals
4 mm binding posts will accept spade tags and 4mm banana plugs. Low thermal emf types are used for the potential connections. Working Temperature 5...40 °C |
Storage Temperature
+5...+40 °C Switches Special Combination switch with low thermal gold/silver contacts for the potential selection and low resistance contacts for the current selection |
Dimensions
215 x 88 x250mm (W D H) 1/2 19'' rack 2U high Weight 2.8kg approx. |