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Stop Guessing Total Volume. Read It Directly.
Digital Flow Meter with Totalizer: Cumulative Volume Electronic Multi-Controllers
Quick Answer: Silver Instruments supplies digital flow meters with built in totalizers and electronic multi-controllers for batching, dosing, and cumulative volume measurement. You get a direct readout in m3, litres, or gallons plus pulse, 4-20 mA HART, and RS485 Modbus outputs. Tell us your pipe size (DN), flow range, medium, temperature, and pressure to receive a matched flow meter and controller quote.
Most engineers skip this part and then face field wiring problems. Here is the thing. A digital flow meter with a totalizer is not just a sensor. It is a complete signal processor. The totalizer stores cumulative volume even after power cycles. The display shows both flow rate and total volume at the same time. We have seen this on customer sites many times in Vietnam, Thailand, and Nigeria. A pump skid runs a batch of chemicals. The operator watches the totalizer. The relay output on the electronic multi-controller stops the pump at a preset volume.
Silver Instruments supplies electromagnetic flow meters, oval gear flow meters, turbine flow meters, and Coriolis mass flow meters with totalizer functions. Each meter can connect to a separate batch controller or use the built in electronic multi-controller. The controller accepts pulse input from the meter, scales the signal, and drives relays. For water and wastewater, the electromagnetic flow meter with totalizer works well from DN15 to DN600. The accuracy is 0.5 percent of reading. The liner options include PTFE, hard rubber, and PFA. Electrode options include 316L stainless steel, Hastelloy C, titanium, and tantalum. For dosing chemicals with viscosity from 1 to 3000 cP, an oval gear flow meter with a local totalizer is a reliable choice. It can handle flows from 0.5 L/h to 2000 L/h depending on size.
A customer in Southeast Asia asked us last year for a paint batching system. The medium was solvent based paint with viscosity around 1500 cP. Pipe size was DN25. Flow range was 50 to 500 L/h. We supplied an oval gear flow meter with a pulse output and a batch controller. The controller had two relay outputs. Relay one opened the valve. Relay two stopped the pump at the target volume. The totalizer on the controller showed cumulative production per shift. The customer cut batch time by 18 percent because operators no longer waited for manual weighing.
In practice, oil and gas terminals in the Middle East often need a flow meter with a temperature compensated totalizer. For fuel oil or diesel, we offer oval gear flow meters with PT100 input. The electronic multi-controller applies the volume correction factor based on the measured temperature. This is useful for custody transfer or internal accounting. The display shows gross volume and net volume at 15 degrees Celsius. The controller also has a pulse output for a remote PLC or SCADA system.
For seawater desalination plants, a digital electromagnetic flow meter with totalizer is standard. The flow range can be 10 to 200 m3/h on a DN100 line. The display shows cumulative volume in m3. The 4-20 mA signal goes to the control room. The RS485 Modbus output allows the DCS to read daily production. We have supplied these meters to water treatment sites in Indonesia and the Philippines. The IP68 sensor option works well in flooded pits.
Here is the thing about multi-controllers. You do not need a separate totalizer if you select a flow meter with an integrated electronic display. But separate controllers help when the meter is in a hard to reach location. The controller can be panel mounted in a control cabinet. It can power the flow meter with 24 V DC. It can scale the pulse input and display rate and total. It can also run a batch function with a preset value. This redu
Typical output options from Silver Instruments include 4-20 mA HART, pulse, RS485 Modbus RTU, and two or four relay outputs. Power supply can be 24 V DC or 220 V AC. Enclosure options are IP65 or IP67. For hazardous areas, we can supply ATEX Zone 1 or Zone 2 versions. The totalizer has a battery backed memory. Even if site power fails, cumulative volume stays in memory. This matters a lot in batch production and utility billing.
We often get questions about totalizer accuracy. The totalizer accuracy follows the flow meter accuracy. If the meter is 0.5 percent of reading, the total volume error over a full batch is also around 0.5 percent. Many low cost meters claim high accuracy but drift after three months. We have seen this on poorly maintained sites in Latin America. For this reason, we recommend calibration every 12 to 18 months. We can supply calibration certificates traceable to international standards.
For chemical injection in food and beverage plants, the flow meter must be cleanable. A hygienic electromagnetic flow meter with totalizer is often the right choice. Sizes from DN10 to DN100 with tri clamp connections. The totalizer can display total in litres. The electronic controller can trigger a CIP cycle after a set volume. This is common in dairy and brewery applications. A customer in Australia used this setup to control yeast dosing. They saved enough yeast in four months to recover the meter cost.
Send us your pipe size (DN), flow range, medium, temperature, pressure, and viscosity if known. We will propose a flow meter and totalizer combination with the right materials. For a fast quote, contact Silver Instruments. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610.
FAQ: Digital Flow Meter with Totalizer and Electronic Multi-Controllers
What is the difference between a flow meter totalizer and a batch controller?
A totalizer reads cumulative volume. A batch controller adds relay outputs and preset functions to start or stop pumps and valves at a target volume. Many Silver Instruments meters have a built in totalizer. Separate electronic multi-controllers are used where the operator needs panel mounting or more relay outputs.
Can this type of flow meter work with viscous liquids?
Yes. For liquids up to 3000 cP, an oval gear flow meter with a totalizer is a good fit. For very high viscosity above 3000 cP, contact us with the exact cP value and temperature. The totalizer pulses remain accurate as long as the meter is sized correctly.
What parameters do you need to recommend a model?
We need pipe size (DN), flow range, fluid name, conductivity if using electromagnetic, viscosity if using oval gear, operating temperature, operating pressure, and required outputs. One or two sentences with these values is enough for a first proposal.
Can the totalizer keep data after a power cut?
Yes. The electronic totalizer stores cumulative volume in non volatile memory. Power loss does not reset the total. The rate display returns to normal after power is restored. Battery backed memory is standard on our electronic multi-controllers.
Is ATEX certification available for hazardous areas?
Yes. We supply digital flow meters and electronic controllers for ATEX Zone 1 and Zone 2 areas. Specify the gas group and temperature class. We will match the flow meter body and controller to the hazardous area classification.
For a specific quote, send your pipe size, flow range, medium, temperature and pressure to Silver Instruments. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610.
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