The MEGA-RTD is a stackable expansion card for Raspberry Pi. It is compatible with all Raspberry Pi versions from Zero-4 and offers a compact and inexpensive solution for reading and storing data from up to 64 RTD-100 temperature sensors.
Since temperature measurement using RTD is based on resistance, the resistance in the lead wires and connectors must be taken into account when calculating the overall resistance in the system circuit. Using a 3-wire circuit design allows lead wire resistance to be factored out of the overall calculation.
- Two ADS1248 24 bit delta-sigma converters (four channels each)
- Factory accuracy: 0.1%
- Maximum accuracy (through calibration): 0.01%
- Pluggable connectors
- On-board hardware watchdog
- On-board resettable fuse
Up to eight MEGA-RTD cards can be stacked on top of one Raspberry Pi. Each MEGA-RTD card is equipped with a 32-bit STM32F030 running at 48 MHz. RTD inputs are processed using two ADS1258, 24 bit Delta-Sigma converters and can achieve up to 0.01 °C accuracy.
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8-Channel RTD Data Acquisition Card User's Guide
- Brand: Sequent Microsystems
- Product Code: User's Guide
- Availability: In Stock