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Batch Controller for Flow Meter Low Cost 220V: Affordable Local Relay Wiring Setups
Quick Answer: You can get precise batch filling directly from a flow meter without a PLC. A 220V batch controller with onboard relays and a simple local push-button setup does the job. Silver Automation Instruments supplies affordable models that connect easily to magnetic, oval gear, turbine, Coriolis, and vortex flow meters.
What a Batch Controller Does in Real Industrial Settings
A batch controller takes a flow signal from your meter and opens or closes a valve or pump at a preset volume. You input a target batch size, press start, and the controller counts every litre or gallon. When the total hits the setpoint, the relay output de-energizes the valve. This works for filling drums, IBC tanks, mixing vessels, or dosing chemicals into a process line.
Most engineers skip the PLC for simple batching. A 220V controller cuts hardware cost and wiring time. You install one box near the flow meter, connect a few wires, and set a batch value on the front panel. No ladder logic, no HMI programming.
The 220V Local Relay Setup That Keeps Wiring Simple
Here is the thing: 220V AC power means you do not need a separate DC supply. The controller powers up directly from your panel or a wall outlet. Inside the unit, one or two relays handle valve and pump control. A typical wiring layout uses a pulse input from the flow meter (often NPN, PNP, or reed switch) and a relay output wired to a solenoid valve or contactor coil.
Many batch controllers in our range offer a screw-terminal back panel. You land the flow meter signal on terminals SIG+ and SIG-, connect the relay on COM and NO, and supply 220V to L and N. That is often the whole setup. A local push-button start/stop interface lets operators run batches without walking to a control room. In practice, we see this used a lot in remote water filling stations in the Philippines and small chemical blending rooms in Indonesia.
Flow Meters That Pair Well With a 220V Batch Controller
You can match almost any flow meter with a pulse output. Here are the common choices from our own product line.
Electromagnetic Flow Meters work for water, wastewater, and conductive fluids above 5 µS/cm. Sizes from DN15 to DN3000 cover municipal and irrigation batching. A magmeter with an open collector pulse output connects directly to the batch controller.
Oval Gear Flow Meters handle oils, fuels, solvents, and chemical additives up to 2000 cP. Our oval gear meters in DN4 to DN50 give a high-resolution pulse train. A customer in Vietnam uses this combination to fill 200-litre drums of paint base. Batch accuracy stays within ±0.5%.
Turbine Flow Meters suit low-viscosity liquids like diesel, kerosene, and alcohols. The pulse signal is clean and easy to condition. We often ship a turbine meter plus batch controller as a kit for fuel depots in East Africa.
Vortex Flow Meters fit steam and compressed air batching where mass compensation is not needed. The pulse output works fine for counting volume at high flow rates.
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Real Wiring Example: A Paint Factory in Vietnam
Last year a customer in Vietnam asked us to simplify their drum filling station. They had an oval gear flow meter already installed on a 2-inch line. The fluid was a solvent-based paint base, viscosity around 500 cP. We sent a 220V batch controller with one relay and local keypad.
Our technician guided the plant electrician over a WhatsApp call. The flow meter pulse output was wired to SIG+ and SIG-. The relay NC contact controlled a pneumatic ball valve via a small solenoid pilot. The controller was mounted in an IP65 enclosure right next to the filling lance. They set the batch value to 200.0 litres, pressed Start, and the valve closed automatically at setpoint. Total cost for the controller was under USD 180, and the whole setup saved them from buying a small PLC and touch screen.
What to Specify When You Order
We need a few details to recommend the right batch controller. Send us your fluid name, viscosity if known, flow rate range, pipe size (DN), and required batch volume. Also tell us whether you need 220V or 24V DC supply and how many relay outputs. If you are in an ATEX Zone 1 or Zone 2 area, mention it so we can add a suitable isolating barrier.
Contact Silver Automation Instruments directly.
Email: [email protected]
Tel: +86-135-1213-1526
Whatsapp: 86-135-12131526
WeChat: +86 13512131526
Frequently Asked Questions
Can the batch controller handle partial fills and top-ups?
Yes. Most models have a pause function and a manual jog key to trickle feed the last few litres. This is useful for precise topping when filling IBC totes.
What input signal types do the batch controllers accept?
Standard inputs are NPN pulse, PNP pulse, reed switch (dry contact), and sometimes 4-20 mA. Check your flow meter output before wiring. We can help you identify the signal type from the flow meter manual.
Is the controller suitable for hazardous areas?
The controller itself is typically not Ex-rated. But you can place it in a safe area and use an intrinsically safe barrier between the flow meter in the zone and the controller input. We supply suitable zener barriers or galvanic isolators with the batch controller if needed.
How many batches can the controller store or repeat?
Basic local units retain one batch preset at a time. Operators can change it in seconds. More advanced models store 10 to 30 pre-sets with a recipe name. For repetitive drum filling, a single preset is often enough.
Can I use the same batch controller for two different liquids?
Yes, if you use two flow meters with separate pulse inputs and a dual-relay controller. You can also switch between meters manually. Let us know your exact process, and we will suggest the right multi-channel model.
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