Sensoray Model 2218 sensor interface
Sensoray’s Model 2218 is a USB 8-channel sensor interface. Each channel can be independently configured to read voltage, thermocouples or resistive devices such as thermistors, RTDs or strain gauges. Eight channels of general purpose I/0 are available for digital control and monitoring. Each analog channel is sampled up to 5 times per second. A voltage-to-frequency converter is used to increase resolution at lower values where it is needed most. Adjustments for nonlinearity are made on board according to the selected sensor type. On-board hardware is used as reference standards for periodic recalibration to maintain high accuracy without interrupting data capture. Four wire connections are available for all 8 channels. The USB connection supplies needed power, and an auxiliary 5-volt jack is available for use with high current sensors. Alarms can be set to trigger when monitored values fall outside user-defined parameters. 503-684-8005; www.sensoray.com
