introducing the microk
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Introducing the microK. Isothermal Technology Ltd. What is the microK?. A New Instrument providing performance better than 1mK Manufactured by Isotech Designed Exclusively for Isotech Not a badged instrument. Why is it exciting?. - PowerPoint PPT PresentationTRANSCRIPT
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Introducing the microKIsothermal Technology Ltd
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What is the microK? A New Instrument providing
performance better than 1mK Manufactured by Isotech
Designed Exclusively for Isotech Not a badged instrument
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Why is it exciting? A great deal, it is the most accurate instrument
in its class, the only instrument to work at this precision with platinum resistance thermometers, thermistors and thermocouples.
The core measurement technology was developed in conjunction with the National Physical Laboratory
NPL and microK has the sole license for the use of this technology for temperature measurement.
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The A to D Uses specially designed analogue to digital converter
used in conjunction with a digital signal processor (DSP)
Uses a unique adaptation of existing advanced sigma-delta ADC techniques to achieve linearity better than 0.4 ppm.
A further major benefit of this ADC technique is its low noise performance, reduced by a factor of 32 over conventional sigma-
delta ADC circuits.
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Accuracy The microK achieves 0.4ppm over the
whole range For SPRTs equivalent to 0.4mK
For Voltage the specification is 250nV at 20mV Equivalent to 0.01°C for a Gold Platinum
thermocouple at 1000 °C
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Accuracy Resolution
Resistance: 0.01ppm of range Voltage: 10nV on 125mV Range
Stability Voltage 3 ppm / year
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Resistance AND Voltage microK supports
SPRTs and IPRTs Thermistors Thermocouples
Only instrument in its class to do this
A DVM with comparable performance has a similar cost to the microK alone
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Zero Drift for Resistance The microK uses a “substitution
technique” in which the Device-Under-Test and the Reference are successively switched This means that the stability of resistance ratio
measurements is immeasurably small
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Three Channel Three Input Channels
Best Practise Ready Allows two standards and a device under test to
be connected simultaneously
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Easy to Use Operated by
large touch screen display Intuitive Can add
keyboard and mouse
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Easy to Use Includes Graphing Facility
Auto or Manual Scales Intuitive
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Easy to Use Log Data to Internal Memory Or USB Pen Drive
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Solid State - Reliable All Solid Sate Reliable
No potentiometers No Dials No Knobs No Relays
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microK A new standard for secondary calibration laboratories
Accuracy - SPRT Better than 1mK Over Whole Range
Channels Three
Probes Supported SPRTs, PRTs, Thermistors and Thermocouples
Solid State Design All solid state NO relays or dials
Stability 0ppm / per year
Measurement Time 1 Second
PC Interface RS232 and USB
Units Ratio, V, °C, °F and K
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microK – Further Information Http://
www.isotech.co.uk/microk Data Sheet Technical Articles Article From Cal Lab
Magazine Latest News
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microK A new standard for secondary calibration laboratories