offers to cover technical challenges encountered in various electronic projects from concept to product manufacturing

Products

3el developed a couple of specialized electronic circuits to support test equipment manufacturing. These circuits are sold individually or as part of custom built test equipment.

Some circuits are MCU based computer IO interfaces, multiplexers and sensors while others are simpler digital or analog circuits for specific use cases. The MCU based circuits are sold with appropriate software support, OS drivers, LabView VIs and user softwares.

For any details or quotations please contact us at any time. We are happy to work together with our customers on complex and interesting projects.

3el-2x16-IOcard-V4.1-Ethernet-Datasheet.pdf
3el-2x16-IOcard-V4.1-Ethernet-Programming-Manual.pdf

2×16 IO CARD

2x16 IO Eth V4.1 is a microcontroller based interface circuit for industrial automation featuring 16 digital and 4 analog inputs and various types of output ports: 16 low side driven outputs, 2 POWER outputs and 8 RELAY outputs.

The IO card can be controlled and monitored through an integrated Ethernet interface. The main circuit can be extended by two additional IO extension cards handling together up to 32 more digital inputs and 32 more RELAY outputs over the standard ports. There is also an integrated I2C interface featuring third party ICs and circuit connections. The MCU can handle external signals as interrupts, can store the input states until readout operations, and can execute macros regarding predefined switching sequences. All digital inputs are optically isolated.
The digital inputs are overvoltage protected and features selectable input logic. In accordance of the application requirements they can be individually selected as active HIGH or LOW inputs. Also an RS485 communication port is included in the latest version

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3el-2x16-IOcard-Ext-64-In-Datasheet.pdf

64 INPUT EXTENSION BOARD FOR 2×16 IO CARD

The 64 Input Extension Card is a compatible peripheral extension for 2x16 IO Card adding 64 filtered and optically coupled digital inputs to the system.

The 2x16 IO Card controls this peripheral through I2C interface with a maximum frequency up to 400kHz. The digital inputs are overvoltage protected and features selectable input logic. In accordance of the application requirements, they can be individually selected as active HIGH or LOW inputs. Each input channel is optically coupled for more flexibility in applications.

The circuit comes with a predefined NI LabView VI interface for easy system integration and has a standalone graphical user interface for testing and configuration purposes

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3el-2x16-IOcard-Ext-64-Out-Datasheet.pdf

64 OUTPUT EXTENSION BOARD FOR 2×16 IO CARD

The 64 Output Extension Card is a compatible peripheral extension for 2x16 IO Card adding 64 low side, 24V digital outputs to the system.

The 2x16 IO Card controls this peripheral through I2C interface with a maximum frequency up to 400kHz. The integrated low side driver outputs can sink up to 500mA individually. Each output channel can be controlled individually for more flexibility in applications.

The circuit comes with a predefined NI LabView VI interface for easy system integration and has a standalone graphical user interface for testing and configuration purposes

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3el-High-Voltage-Pneumatic-Switch-V1.0-Datasheet.pdf

HIGH VOLTAGE PNEUMATIC SWITCH

This special high voltage switch can be used as an isolation bridge when performing AC withstanding, DC withstanding as well as insulation resistance tests in different use cases.

Targeting user’s protections, the device implements hardware techniques to improve safety. The spring loaded contacts insulation can withstand 5kV (tested) on adjacent poles. The mechanism was tested performing over 100k ON/OFF cycles without significant wearnes. The switch is pneumatically actuated with integrated electrovalve and autonomously switches off in case of air leakage

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3el-2x16-IOcard-Extension-V3.1-Datasheet.pdf

IO EXTENSION BOARD FOR 2×16 IO CARD

The IO Card Extension is a compatible peripheral extension used together with 2x16 IO Card unit for industrial automation featuring 16 digital inputs and 16 relay outputs.

The Extension card is controlled and monitored by the 2x16 IO Eth V4.1 microcontroller on the same internal interface as the main circuits. The Extension card should be linked to a 2x16 IO Eth V4.1 by a ribbon cable. It is also possible to link one more extension circuits in the chain. Therefore the 2x16 IO Eth V4.1 card's MCU can extendedly handle more external signals, can store more input states until readout operations, can drive more outputs and can execute macros regarding predefined switching sequences.

The digital inputs are overvoltage protected and feature selectable input logic beside optical isolation. In accordance with the application requirements they can be individually selected as active HIGH or LOW inputs

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3el-5x64-MUX-V1.0-Datasheet.pdf
3el-8x32-5x64-MUX-Ethernet-Programming-Manual.pdf

MUX 5×64

5x64 AMUX V1.0 is a microcontroller based analog multiplexer circuit for industrial automation featuring 5 rows and 64 columns, resulting in a 320 points matrix of individually controllable switches.

The multiplexer circuit can be controlled and monitored through an Ethernet interface. In addition the circuit integrates a single bus structure over RS485 interface featuring address based extension of the switching matrix up to a maximum of 75 rows and 960 columns in one common MUX circuit.

All switches are implemented with OPTO-MOSFET based SSR relays. Each individual node can switch and hold a maximum current of 500mA.

Individual switches can be turned ON or OFF in sequential order or in a parallel handled group based on specialized commands sent to the MUX MCU over a TCP/IP socket

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3el-8x32-MUX-V6.0-Datasheet.pdf
3el-8x32-5x64-MUX-Ethernet-Programming-Manual.pdf

MUX 8×32

8x32 AMUX V6.0 is a microcontroller based analog multiplexer circuit for industrial automation featuring 8 rows and 32 columns, resulting in a 256 points matrix of individually controllable switches.

The multiplexer circuit can be controlled and monitored through an Ethernet interface featuring address based extension of the switching matrix up to a maximum of 120 rows and 480 columns in one common MUX circuit. All switches are implemented with OPTO-MOSFET based SSR relays. Each individual node can switch and hold a maximum current of 500mA. Individual switches can be turned ON or OFF in sequential order or in a parallel handled group based on specialized commands sent to the MUX MCU over a TCP/IP socket

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Programmable-Digital-Resistance-Decade-V1.0-Datasheet.pdf

PROGRAMMABLE DIGITAL RESISTANCE DECADE

The Programmable Digital Resistance Decade is a microcontroller based module built to provide a resistance ranging 1..1,666,665 Ohms, featuring 24bit resolution and RS485 serial communication port.

Used in electronic circuit design where electrical values can be substituted into a circuit and replace standard value component helping to find the optimum value for circuit operation instead of trialling several components individually. The on-board relays control the resistors that get included in the network. In addition a small display shows the actual resistor value

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3el-Proximity-Switch-V2-Datasheet.pdf

PROXIMITY SWITCH

PSW2 is a microcontroller based interface circuit for non-contact reflective object sensors. It can adopt various reflective sensors as input devices. The sensor drive signal is modulated to improve direct sunlight rejection.

The circuit allows accurate sensing distance adjustment and can switch various resistive, inductive and capacitive loads on output. The output is also protected against short circuits, thermal overloads and electrostatic discharges.

The interface board has dedicated soldering pads allowing it to directly connect reflective sensors (ANODE, CATHODE, EMITTER, COLLECTOR), supply voltage and output signal

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