Model M641 is a programmable RTD simulator with range from 10 Ω to 300 kΩ and with its 5 W load capacity very suited for industry applications.
Basic accuracy is 0.02 %.
Best resolution at the lowest range is 100µΩ.
The Decade contains stable high load resistors with low temperature coefficient switched by low thermal voltage relays.
A large LCD shows all related parameters including total accuracy.
And there is no residual resistance or hidden absolute error so you don't have to calculate it by yourself, accuracy you see is accuracy you get.
Built-in software contains function of RTD temperature sensor simulation with parameters according to IEC (DIN) or US standards, temperature setting in degree of Celsius or Fahrenheit.
The Instrument can be controlled via RS232, USB, LAN or GPIB interface.
M641 is sophisticated instrument with its own recalibration procedure. The procedure enables to correct any deviation in resistance without any mechanical adjusting.
Decade box is designed for checking parameters of resistance meters, regulators and process meters that use external resistance sensors for non-electric quantity measuring.
Resistance: 10 Ω - 300 kΩ max dissipation power 5 W± 200 ppm / year
Temperature: RTD ± 0.1°C / year, resolution 0.01°C