Introducing the microK

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Introducing the microK
Isothermal 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 0.01C 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

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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