Oldham MX 43

Controller with 4 to 8 detection channels

Up to 32 analog or digital detectors
5 programmable alarm thresholds per channel
OR, AND, NAND, VOTING logic for alarm
USB data logging

The MX 43 is a digital and analog controller designed for measuring gases in the atmosphere and more generally for processing any 4-20 mA analog or compatible on/off digital signal. Up to 32 detectors can be distributed on its 8 lines for increased cost savings. The MX 43 is SIL1-certified and accepts different modules (analog inputs, relay outputs, compatible logic input, analog outputs) that can be installed at a distance of up to several hundred meters for increased system capacity and flexibility. It is available in wall-mounted version and 19”-rack-mounted version.


Inputs: 4-20 mA, digital, Wheatstone Bridge
Outputs: 6 built-in relays and up to 24 external relays, 4-20 mA, RS485 Modbus RTU
Power supply: 22 to 28 Vcc and 100 to 240 Vca, optional embedded backup battery
Indicators: Built-in audible and visual alarms, optional additional alarm kit
Certifications: CE • ATEX metrology • EAC • MED • SIL1