Schneider Electric BMXART0414 X80 Isolated Low-Level Analog

BMXART0414 four-channel isolated temperature input for X80 racks

The BMXART0414 is a Schneider Electric product listed in the datasheet as: Analog isolated low level input module, Modicon X80, 4 inputs, 40mV positive or negative. The BMXART0414 is an isolated analogue input module for low-level signals such as thermocouples and resistance thermometers. It has four channels, 16-bit conversion and cold-junction compensation by an external probe, so it can read process temperatures directly in the rack. Seven Star LLC supplies the BMXART0414 in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference: BMX is the X80 hardware, ART the analogue temperature input module type, 04 the four channels and 14 the version suffix. The datasheet title: isolated low-level input, 4 inputs, 40 mV positive or negative.

Technical specifications of the BMXART0414

Input types, accuracy and conversion

Input types: Voltage ± 1.28 V; Voltage ± 160 mV; Voltage ± 320 mV; Voltage ± 40 mV; Voltage ± 640 mV; Voltage ± 80 mV; Resistor 400 Ohm 2 wires. Resolution: 15 bits + sign. Conversion: Sigma delta 16 bits. Common-mode rejection: 120 dB 50/60 Hz. Cold junction compensation: External by Pt100 probe. Measurement error: ± 0.7 °C Ni 1000 25 °C; ± 1.3 °C Ni 1000 0 to 60 °C; ± 2 °C Pt 100 0 to 60 °C; ± 2 °C Pt 1000 0 to 60 °C; ± 2.1 °C Ni 100 25 °C. Read cycle: 400 ms with temperature probe; 200 ms with thermocouple. Isolation: 1400 V DC between channels and bus; 750 V DC between channels; 750 V DC between channels and ground.

Low-level inputs measure millivolt signals, so wiring quality dominates accuracy. Use twisted shielded pairs, ground the screen at one end and keep the cables away from power lines. The channels are isolated, which prevents ground loops between sensors at different potentials.

Fitting the BMXART0414 in a rack and what it works with

The module goes into any X80 rack slot and takes its power from the backplane; the datasheet gives the current drawn at 3.3 V and 24 V so the rack power budget can be checked. A 40-way connector carries the wiring.

For high-level 4 to 20 mA signals, use a different module, such as an input module for high-level analog signals; the low-level module is for thermocouples and RTDs.

Selection checklist for the BMXART0414

• Sensor types: thermocouple, RTD or millivolt.
• Number of points and the sensor wiring (two, three or four wire).
• Cold junction compensation method.
• Update time needed for the loop.
• Connector and shield strategy.
• Calibration and recalibration approach.

Wiring and commissioning the BMXART0414

Use the 40-way connector, connect each channel with the correct polarity and wire count, and configure the channel type in the engineering software. For thermocouples, run the compensation probe near the terminals.

During commissioning, check each channel with a calibrator, record offsets, and monitor LEDs for open-circuit detection. Replace the module with identical hardware when a fault is persistent.

Typical applications of the BMXART0414 in Oman and the GCC

Temperature monitoring on motors, bearings, furnaces, heat exchangers and process lines in oil and gas, power and petrochemical plants in the region. Heat in the panel affects accuracy, so keep the rack cool.

Dimensions, environment and approvals of the BMXART0414

The BMXART0414 weighs 0.135 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: 0 to 60 °C. Relative humidity: 5 to 95 % 55 °C without condensation. Ingress protection: IP20. Operating altitude: 0 to 2000 m; 2000 to 5000 m with derating factor. Vibration resistance: 3 gn. Shock resistance: 30 gn. Standards listed: IEC 61131-2; IEC 61000-6-4; IEC 61000-6-2; EN 61010-2-201. Certifications listed for this reference: EAC; RCM; UL; Merchant Navy; CSA; CE.

Information to send with an RFQ for the BMXART0414

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a new installation

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.