Cerlic BB2 24 VDC controller

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To keep up with changing plant standards, Cerlic has released a 24 VDC version of its centralised BB2 controller.

Still capable of managing up to four separate sensors with any combination of the X-Series sensor range of suspended solids (ITX, CTX-LC and ITX-IL), dissolved oxygen (O2X Duo), pH (pHX) and redox (ReX), the low-voltage DC unit is reverse compatible with existing Cerlic equipment and can directly replace a line voltage unit as part of an upgrade, with no further hardware required.

The Swedish-built BB2 provides up to four 4–20 mA analog output channels with the option of Profibus DP for digital control circuits.

As for the line voltage (240 VAC) model, there are still two independent (dry contact) relays in the BB2 that can be programmed for high/low alarms or to trigger the self-cleaning of sensors with pressured air or water.

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