Introduction

RM100-K3-R01 is a programmable resistance board combining high accuracy, high step resolution, small size, wide input voltage and very low power consumption with UART communication interface and simple AT command set, especially suitable for embedded applications in high precision (portable) instruments.

Like the QR10 series resistance boxes, the RM100-K3-R01 uses electromagnetic relays + true resistors network to achieve a programmable true resistance output.

As with our other products, the RM100-K3-R01 continues to provide users with an excellent price/performance ratio.

Features

• Isolated output: control circuit and output resistance are fully isolated.
• Latching output: output resistance can still be maintained after the module is powered off.
• Adjustable response time: maximum 64ms (default). User configurable 32ms, 16ms and 8ms (faster response time requires higher peak power).
• Relay health monitor: Each relay switching times are counted and recorded.
• Communication port: 1.25mmx4P terminal, UART interface (VIN,GND,TX,RX), compatible with 3.3-5V TTL/COMS level
• Communication protocol: Custom AT command set, similar to RM55 module command set.

Specification

*Accuracy is defined based on output measured value - set value, @ calibration temperature ±1℃.

Customisation

Different ranges and steps can be customised, accuracy ±(0.015% + step):