Meatest M641 programmable RTD simulator

  •  Calibration of temperature controllers
  •  Resistance range 10.0000 Ω – 300 kΩ
  • Simulation accuracy +/- 0.1 °C, resistance accuracy +/- 200 ppm
  • Operating voltage 200 V
  • Simulation of RTD temperature sensors
  • User defined curves (conversion tables)
  • RS232 (optionally USB, IEEE488, Ethernet)

The Meatest M641 is an accurate programmable resistance decade box designed specifically for RTD simulation in industrial applications and laboratories. With a resistance range of 10 Ω to 300 kΩ, a basic accuracy of 0.02%, and a rugged design, the M641 is the perfect solution for calibrating temperature gauges, Ohm meters and other precision instruments.

Advanced RTD simulation and resistance calibration

The M641 is equipped with real resistors, switched via relays, ensuring maximum stability and reliability with no residual resistance or hidden absolute errors. This means that the displayed value almost exactly matches the actual resistance, making calibrations more efficient and accurate.

With support for multiple RTD scales, including IPTS-68, ITS-90 and various nickel sensor configurations, the M641 can directly convert resistance values to temperature measurements. This makes the device ideal for use in calibration labs and manufacturing environments where RTD sensors and temperature-based measurement devices need to be tested and validated.

Versatile functionality and ease of use

The M641 not only offers resistance simulation, but can also be set to alternate units such as temperature, distance and power, depending on the measurement application. With a fast response time of <6 ms and a maximum load capacity of 200 Vpk, 0.5 A, 5 W, this decade box offers a robust solution for both DC and AC applications.

The device is easy to operate thanks to its large LCD display, which shows all relevant parameters and accuracy.

Seamless integration into automated test environments

The M641 supports advanced connectivity options. This makes it possible to operate the device remotely and integrate it into automated calibration and production lines, leading to a more efficient testing process and significant time savings.

Applications
The Meatest M641 is ideal for:

> Calibration and testing laboratories: precise RTD and resistance measurements.
> Industry and manufacturing: Quality control and verification of sensors.
> Research and development: Simulation of temperature sensors in experimental applications.
> Education and training: Practical demonstrations and technical training.

Technical specifications

> Resistance range: 10 Ω – 300 kΩ
> Accuracy: Up to 0.02% depending on range
> Response time: <6 ms
> Maximum load: 200 Vpk, 0.5 A, 5 W
> RTD simulation scales: IPTS-68, ITS-90, Ni-6180, custom scales
> RTD simulation accuracy:
* Pt100 – Pt1000: -200°C to 0°C: ±0.15°C | 0°C to 850°C: ±0.2°C
* Ni100 – Ni1000: -60°C to 300°C: ±0.1°C
> Operating temperature: +5°C to +40°C
> Connections: RS232, USB, LAN, IEEE488 (GPIB optional)
> Dimensions: 390 × 128 × 310 mm
> Weight: 4 kg

The Meatest M641 Programmable RTD Simulator is the choice for professionals seeking precision, reliability and versatility in resistance calibration and temperature simulation.

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