Model M642 - Programmable Resistance Decade Brochure

Model M642 is programmable real-resistance decade with range from 0.1 Ω to 20 MΩ. Basic accuracy is 0.02 %, best resolution on the lowest range is 1 μΩ. Decade consists of high load resistors switched with combination of relays. Apart from resistance function, the M642 can be also used as an RTD temperature sensor simulatior (temperature setting in degree of Celsius or Fahrenheit). Instrument can be controlled via RS232, USB, LAN or GPIB interface.