The EL3201 is a high-precision 1-channel analog input terminal by Beckhoff designed for industrial temperature measurement. It supports a wide array of RTD sensors, including Pt and Ni types, as well as general resistance measurements. The module offers flexible connection technologies, supporting 2-, 3-, and 4-wire configurations to ensure accurate readings by compensating for lead resistance. With a resolution of 0.1 degC per digit and a robust digital filter, the EL3201 provides reliable thermal data for complex EtherCAT control systems.
Features
1-channel RTD input with support for Pt and Ni sensors
Flexible 2-, 3-, and 4-wire connection technologies
High resolution of 0.1 degC per digit
Integrated digital filtering and limit value monitoring
Electrical isolation of 500 V between E-bus and signal voltage
Compact, DIN rail-mountable housing with status LEDs
Technical Specifications
Feature
Specification
Manufacturer
Beckhoff
Model
EL3201
Sensor Support
Pt100/200/500/1000, Ni100/120/1000, KTY
Temperature Range
-200 to +850 degC (Pt); -60 to +250 degC (Ni)
Resolution
0.1 degC per digit
Conversion Time
24 ms (default), 4–500 ms (configurable)
Measuring Error
< ±0.5 degC (Pt sensors)
Current Consumption (E-bus)
Typ. 190 mA
Dimensions (W x H x D)
12 mm x 100 mm x 68 mm
Operating Temperature
-25 to +60 degC
Storage Temperature
-40 to +85 degC
Installation Guidelines
Wiring: The terminal uses spring-loaded connections. For high-precision applications, a 4-wire connection is recommended to eliminate the impact of lead resistance.
Mounting: Snap onto a 35 mm DIN rail (EN 60715). Use the double slot and key connection for stable mechanical integration.
Environmental: Ensure the module is kept within its IP20 environmental rating; avoid exposure to condensation or extreme dust/moisture.
Safety: For installation in hazardous areas, ensure adherence to the ATEX rating (II 3 G Ex nA IIC T4 Gc).
Compliance and Certifications
CE, UL
ATEX: II 3 G Ex nA IIC T4 Gc
EMC immunity/emission: Conforms to EN 61000-6-2 / EN 61000-6-4
Vibration/shock: Conforms to EN 60068-2-6 / EN 60068-2-27
FAQ
Which sensor types are compatible with the EL3201?
The module supports Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, KTY sensors, and general resistance measurement.
Does the EL3201 support 4-wire sensor connections?
Yes, it supports 2-, 3-, and 4-wire connection methods to help minimize lead resistance errors.
What is the resolution of this temperature module?
The EL3201 provides a resolution of 0.1 degC per digit.
Can the conversion time be adjusted?
Yes, the conversion time is configurable between 4 ms and 500 ms, with a default setting of 24 ms.
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