10D-POT

10D-POT potentiometer input modules are designed to interface with 2- wire and 3-wire resistance sensors used in industrial, test, and measurement applications.

Each module provides a single channel of potentiometer input that is filtered, isolated, amplified, and converted into 24-bit digital data for precise measurement of resistance signals.

Excitation for the potentiometer is provided using two matched current sources. When using a 3-wire connection, this method allows equal current to flow through the sensor leads, canceling the effects of lead resistances. Low excitation current minimizes self-heating of the potentiometer, further reducing measurement errors.

Discrete output pins can be mapped to configurable low and high alarms to provide essential monitoring and warning functions to ensure optimum process flow and fail-safe operation.

Input-to-digital isolation is rated at a robust 1500Vrms and all field-side inputs are protected against accidental power-line connections up to 240Vrms. These features safeguard measurement and control equipment from the harmful effects of signal noise, transient surges, ground loops, and other industrial hazards.

Over-range and under-range up to 10% beyond specified input values are supported with accuracy guaranteed to ±full-scale. All 10D modules are housed in rugged thermoplastic packages and are specified to operate over the industrial temperature range of –40°C to +85°C.

BENEFITS

• Small Footprint 
• Simplifies Sensor Interface and Signal Conditioning Design 
• Reduces System BOM 
• Provides Isolation of External Sensors 
• Protects Sensitive System Components 
• Breaks Ground Loops 
• Reduces EMC Concerns

APPLICATIONS

• Signal Conditioning 
• Industrial Process Control
• Signal Isolation 
• Test and Measurement
• Signal Filtering 
• System and Signal Monitoring