Reference Resistors

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Ultra precise, long term stable and robust


The resistor standard RS9010A by wekomm opens the next level of precision for the use as reference resistor, calibration standard or transfer standard. Made in Germany by wekomm to meet highest demands - Being independent from parasitic influences like temperature, humidity or ambient pressure.

Resistance Standard
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Resistance Standard
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Perfection even in detail


According to our experience, the mechanical and electrical properties of the resistor elements only partly contribute to the excellent specifications. A lot of precision is obtained through special manufacturing processes and construction details. (You can find details in the test results of the PTB). To achieve such results, not only every components needs to be optimized. The well balanced combination of all parts makes the difference here.

Messkomponenten
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For every application we have the right resistor


The resistor standards by wekomm are manufactured from selected components, which come from the finest suppliers worldwide.

The models series RS9010A offer 11 decadically staggered values ranging from  1 Ohm up to 100 MOhm.

Of course we offer on request all values in between those standard values. Even custom cases are possible (including 19 inch cases) with a variety of connectros. Made in Germany!

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Resistance Standard

Destination High-End


As transfer standard and reference or precision resistors series RS9010A match even the highest requests from metrology institutes, calibration labs and producing industry / OEM.

The excellent insensivity against changes in temperature or pressure allows the precision to be obtained even outside of climate controlled laboratories like production environments, mass production or calibration of ot of lab placed instruments.

typical product specifications

model

nominal value
Ω

calibration precision
µΩ/Ω

temperature coefficient
µ
Ω/Ω pro K

stability

µΩ/Ω per year

maximum voltage (Volt)

maximum current (mA)

RS9010A-1 

RS9010A-10

RS9010A-100

RS9010A-1K

RS9010A-10K

RS9010A-100K

RS9010A-1M

RS9010A-10M

RS9010A-100M

1Ω

10Ω

100Ω

1KΩ

10KΩ

100KΩ

1MΩ

10MΩ

100MΩ

1Ω

10Ω

100Ω

1KΩ

10KΩ

100KΩ

1MΩ

10MΩ

100MΩ

< 1.0

< 1.0

< 1.0

< 0.3

< 0.3

< 1.0

< 5.0

< 10.0

< 50.0

1

1

1

1

1

1

1

5

5

0.5

1

5

10

20

100

200

500

500

200

50

50

10

10

10

5

1

1

  • Aging/Drift: < 1 µΩ / Ω per year (independend from environmental influences)
  • temperature coefficient: < 0,3 µΩ / Ω per K
  • repeat error (hysteresis):  neglectable error 20°C to 30°C
  • wide operation range from 20°C to 30°C
  • no special requirements regarding temperature
  • mechanically insensitive and completely immune to ambient pressure changes
  • No oil bath required
  • custom versions possible
  • standard size: W 10 x H 10 x D 11.5cm
  • weight: ca. 1.5 kg
  • Made in Germany

For more information get the datasheet here

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Accessories


For optimum protection while transporting we recommend our transportation box for two resistors.


Additional accessories are low thermal cables in two variants:


  • 2-wire
  • 4-wire
Optimal, geschützter Transportkoffer
Resistance Standard
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Where to buy


Orders in Germany a best done via dataTec, their sales and support team will be glad to assist you. vornehmen – for details you are welcome to  ask us as well.


For orders from outside Germany please contact us directly.


Information about our calibration service are available here.

© wekomm engineering GmbH, 2021