Yokogawa FLXA402 4-Wire Multi-Channel Liquid Analyzer

FLXA402 is an analyzer that combines pH/ORP, contacting conductivity (SC), inductive conductivity (ISC), percent concentration, dissolved oxygen and 4-20 mA input on one instrument, with interchangeable sensor modules. Up to five sensors can be connected; dual sensors can produce calculated data or form a redundant system.

FLXA402 features

• Color touchscreen, menus in 9 languages, die-cast aluminum housing.
• 110 VAC or 24 VDC supply; 4 SPDT relays.
• 4-20 mA, HART, Modbus (Ethernet and RS-485) and Bluetooth.
• Data transfer and remote service by SD card or Ethernet; part of the SENCOM 4.0 smart sensor platform.
• Electrode contamination, breakage and falling liquid level are monitored continuously; estimated maintenance time is displayed.
• Suitable for general-purpose and Class I Div II areas.

Choosing FLXA402

It is used at water treatment, energy, chemical, food and beverage and pulp plants, where multi-point measurement and relay output are needed. FGD pH control in limestone scrubbers and wastewater dissolved oxygen monitoring are sample applications.

Tetra plans the number of channels and module arrangement according to the plant's measurement points, brings the Modbus connection into the control system and calibrates the sensors during commissioning. Local support is provided for module and sensor spare parts.