Wiman Product · IoT enabled · built on the WT400M

RO purifier controller

An IoT-enabled controller for RO purifiers, built on the WT400M 4G gateway. It runs the inlet valve, booster pump, UV lamp and flush valve, reads both TDS probes, the flow meter and the pressure and tank switches, shows the status on a 3-digit display, and reports every reading and fault to your server over 4G. The simulation below runs the same sequence with shortened timings.

RO system

IoT enabled · 4G Boot SIMULATION 08:00:00
TDS in—ppm
TDS out—ppm
Rejection—%
Tank—%
Flow0.0L/min
UV lamp—V
INLET PRE-FILTRATION REVERSE OSMOSIS UV STORAGE Raw water 9 LP switch 24V 11 Inlet valve Sediment Carbon TDS1 TDS in — ppm 11 Booster pump RO MEMBRANE 6 UV chamber 0.00 V 10 TDS2 50 % 6.0 L — ppm TDS out Storage tank 5 Flow meter 0.0 L/min Tap Restrictor 24V 13 Flush valve Drain
Raw water Purified water Reject 9WT400M terminal or connector it is wired to
Field inputs
Lamp fail below 1.0 V on terminal 6
Feed TDS probe 1, on the TDS connector

Controller

Last 4G report: pending
IN · TDS IN 4G SIM 4-WIRE 1 2 TDS PRO SERIES RO CONTROLLER PWR GSM TXD RXD STAT WT400M IoT ENABLED · 4G Customised for RO 4G · waiting for first report POWER NC INPUTS 4–20 MA SWITCH RELAY FLUSH
Display screens

WT400M terminals

Live · wall-mount numbering
Term.LabelRO useLive

Event log

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