March 25, 2015— Maxim releases MAXREFDES42# IO-Link RTD temperature sensor that measures temperature, while detecting overvoltage, shorts, and open circuits. The reference design consumes minimal power and provides better than +/-.5°C accuracy. The temperature appears immediately on an LED display for a quick and convenient snapshot of coarse temperature values. For user convenience, MAXREFDES42# fits in a standard industrial form factor.
For versatility, it supports all three IO-Link speeds. The MAXREFDES42# is available for use with a 2-wire, 3-wire, or 4-wire PT100 RTD over a wide temperature range. Applications include air, gas, and liquid temperature measurement.
The configuration software for this smart IO-Link temperature detector was developed in collaboration with IQ2 Development. The MAXREFDES42# uses their IO-Link device stack to communicate with any IO-Link version 1.1-compliant master. This software control lowers operating cost because it enables fast setup, diagnosis, and event monitoring from a PC and without a trip to the installation site. Maintenance can be done at the PC and not on the floor.
Key Advantages
- Low Power: during operation over a temperature range of -40°C to 150°C, the system consumes less than 300mW of power by utilizing an industrial DC-DC step-down converter.
- Highly Integrated: integrated into the front-end is the MAX31865 RTD-to-digital converter which provides flexibility, robustness, and optimal performance for an IO-Link platform.
- Cost Savings: PC control with IQ2 software saves configuration and maintenance cost and increases uptime.
The MAXREFDES42# is available for $99.
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