Beckhoff ELM3146-0000 ELM Series EtherCAT Terminal

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Manufacturer: BECKHOFF
Product No.: ELM3146-0000
Country of origin:Germany
Product Type: EtherCAT Terminals
Payment: T/T, Western Union
Weight: 350g
Dimensions: 30 mm x 100 mm x 95 mm
Shipping port: Xiamen
Warranty: 12 months

Description

Precision measurement tasks within industrial EtherCAT networks require highly reliable, high-resolution instrumentation. The Beckhoff ELM3146-0000 is a multi-functional, 6-channel analog input terminal designed for high-accuracy data acquisition. Supporting both voltage and current measurement capabilities, each channel can be configured independently to match specific sensor interfaces. The module features integrated Distributed Clocks (DC) for precise temporal synchronization under 1 microsecond, making it ideal for dynamic testing and process diagnostics.

Housed in a robust zinc die-cast metal enclosure with signal status LEDs, this module implements a multiplexed measuring structure operating at sampling rates up to 1 ksps per channel. Advanced dynamic processing functions, such as TrueRMS calculations, PeakHold, free numeric filters, and non-linear scaling, are processed directly within the terminal, reducing computational overhead on the main controller.

Features

Six high-precision differential analog input channels with software-configurable voltage or current modes.
24-bit analog-to-digital resolution (including sign) for high measurement signal fidelity.
Supports multi-range voltage input (from ±1.25 V to ±10 V) and current measurement (±20 mA).
Distributed Clocks (DC) synchronization with accuracy significantly below 1 microsecond.
Flexible 2-, 3-, or 4-wire connection configurations utilizing 6-pin push-in service plugs.
Comprehensive diagnostics including broken wire and short-circuit monitoring.
Internal software features: ExtendedRange (107%), TrueRMS, PeakHold, integrator/differentiator, and non-linear scaling.

Applications

High-precision test benches and automotive engine testing systems.
Industrial power monitoring and TrueRMS voltage/current evaluation.
Process control systems in chemical, oil, and gas industries requiring high noise immunity.
Vibration analysis and dynamic structural health monitoring.

Technical Specifications

Manufacturer	Beckhoff
Part Number	ELM3146-0000
Number of Channels	6
Signal Type	Differential
Measurement Technology	Voltage or current measurement (configurable per channel)
Input Voltage Ranges	±10 V, ±5 V, ±2.5 V, ±1.25 V
Input Current Range	±20 mA
Resolution	24 bit (including sign)
Sampling Rate	Max. 1 ms / 1 ksps per channel (multiplexed)
Oversampling Factor	n = 1 to 20 (selectable)
Internal Resistance	> 4 MOhm (voltage), typ. 200 Ohm (current)
Measuring Error	Typ. < ±100 ppm / ±0.01% (relative to full scale value at 0 to 50 degC)
E-bus Current Consumption	Typ. 250 mA
Electrical Isolation (Channel/Bus)	707 V DC (type test)
Electrical Isolation (Channel/SGND)	707 V DC (type test)
Thermal Dissipation	Typ. 2 W
Housing Material	Zinc die-cast with status LEDs
Dimensions (W x H x D)	30 mm x 100 mm x 95 mm
Operating Temperature	-25 to +60 degC
Storage Temperature	-40 to +85 degC
Weight	Approx. 350 g

Connections and Interfaces

Parameter	Specification
Connection Type	Push-in, 6-pin service plug
Wiring Technology	2-, 3-, or 4-wire connection
Solid Conductors (e)	0.2 to 1.5 mm² (AWG 24 to 14), direct plug-in
Fine-stranded Conductors (f)	0.25 to 0.75 mm² (AWG 24 to 14), spring actuation by screwdriver
Stripping Length	8 to 9 mm

Compliance and Certifications

Key Features:

#ELM Series #EtherCAT Terminals

What analog measurement types does the Beckhoff ELM3146-0000 support?

The ELM3146-0000 supports both voltage measurement (ranges: ±10 V, ±5 V, ±2.5 V, ±1.25 V) and current measurement (±20 mA). Each of the 6 channels can be configured independently.

What is the sampling rate and resolution of this terminal?

The module offers high-precision 24-bit resolution (including sign) and features a maximum multiplexed sampling rate of 1 ksps (1 ms) per channel.

Does the ELM3146-0000 feature channel-to-channel electrical isolation?

No, it does not feature channel-to-channel isolation. However, it does feature 707 V DC electrical isolation between the channels and the E-bus, as well as between the channels and SGND.

What connection technology is used for wiring the sensor signals?

It uses a 6-pin push-in service plug supporting 2-, 3-, and 4-wire layouts. Solid conductors plug in directly, while fine-stranded conductors are connected using a spring mechanism operated via a screwdriver.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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Beckhoff ELM3146-0000 ELM Series EtherCAT Terminal