Accuracy: 0.8ppm maximum over whole range for SPRT with Ro ≥ 2.5Ω

(equivalent to 0.2mK at 0°C, or 0.8mK over full range)

Data Sheet

microsKanner Channel Expander Data Sheet

• Accuracy ±0.4ppm
• Zero drift for PRTs
• PRT, thermocouple & thermistor sensing
• 1s measurement time
• Keep-warm currents
• 0-10mA sense current
  

The microK Precision Thermometer family consists of two models, the microK 400 and the microK 800.

Both provide best in class performance using a completely new type of sigma-delta ADC. By using a substitution technique drift for PRT measurements is eliminated. Voltage measurement stability is just 3ppm /per year.

The microK 800 offers a cost saving over the higher specifiied microK 400 bust still provides sub mK performance with a specification of just 0.4ppm for a 2.5 Ohm SPRT over the whole SPRT operating range. In terms of temperature this is equivalent to 0.0002°C at 0°C and 0.0008°C over the full range, 0.2mK and 0.8mK respectively.