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IET SCA Series Capacitance Standard
IET GenRad 1404 Series Primary Standard Capacitors
Ohm Labs 200 series standards including the 1Ω reference standard
TTMS has an extensive range of electrical standards and supported equipment for electrical metrology.
From Measurement International we have the highest level of resistance: the Quantum Hall system, which realizes the unit of resistance Ohm with an accuracy of <0.02 ppm, with which a direct transfer can be made up to 1 kΩ and 10 kΩ. In each country there is only one institute that uses this kind of standards. In other cases, a set of precision resistors is used to cover the various decades. Replacements of the Thomas 1 Ω with a stability <0.2 ppm/year serve very well as the primary standard for many industrial laboratories. TTMS has a wide range of standard resistors which are used worldwide at the highest metrological level up to practical working standards for secondary laboratories. The range we can cover is from 10µΩ to 10TΩ. Solutions come from Measurement International as well as from OhmLabs, a manufacturer that only focuses on resistors for standard resistors and current shunts. For transfer standards for resistors we also have solutions from IETLABS, which the ESI has taken care of. Besides resistance, there are also standards for capacitance and induction of IETLABS, which, as they say themselves, still develop and produce these in the same way in the GenRad tradition. To support the transfer of the electrical standards to other decades, various measuring bridges and scanners are available.
We don’t buy measuring instruments, we purchase solutions for specific measurement problems. I like to buy from TTMS, given their knowledge of test solutions in power electronics. I hate sellers. TTMS helps us to make the right choice. They even come up with instrumentation from manufacturers they do not represent themselves. And always with the perfect service: they are not complicated and just arrange what is needed.
Shell Technology Centre Amsterdam
In my role within the calibration and quality lab, it is a continuous striving for quality for me. In order to ensure this, the right support from, amongst others, suppliers is essential. TTMS understands this like no other, and I have been doing business with them for years. If I need to describe the business relationship with TTMS, it would be that it’s both constructive and instinctive. The measurement instrumentation is reliable.
In addition to this, TTMS’ expertise of test and measuring equipment complements the STCA.
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