Meatest M641 Real-Resistance RTD Simulator

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Resistance decade box designed for RTD and other resistance-based sensors' simulation. 0.1°C accuracy and 5W load capacity.

Meateast M641 is programmable real-resistance decade with parameters designed specifically for RTD sensors' simulation and testing of RTD evaluation units like temperature regulators, transducers, etc. The core function is still resistance so you can as well calibrate ohmmeters and other resistance based meters easily. M641 is made of high load resistors and relays allowing for 5 W load capacity and 0.01°C resolution at the same time. Floating output terminals of M6xx decades allow for AC measurements as well, see datasheet for typical frequency responses.

User comfort

M6xx series was made to make resistance calibration as easy as it gets. 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 what you get. And that's not the only thing that firmware sorts out for you. Would you like the resistance shown in temperature units? Distance? Force? RTD and user function will do this for you. Complete recalibration? Ten minutes and off you go.


All decades' functions can be remotely controlled via RS232, USB, LAN or GPIB interface. This way you can introduce calibration/test stage directly into production line of any resistance based sensor and reduce time required for final quality tests dramatically.


Resistance 10 Ω - 300 kΩ
max dissipation power 5 W
± 200 ppm / year
Temperature RTD ± 0.1°C / year, resolution 0.01°C
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