Digital Rotameter for Accurate Gas Flow – MASS‑VIEW®
The digital Rotameter the MASS-VIEW® operate on the principle of direct thermal mass flow measurement. A major advantage of using this type of sensor is that the instruments measure direct mass flow, without the need for temperature and pressure correction.
This digital Rotameter has compared to conventional Variable Area meters high accuracy and rangeability (up to 1:100). The 10 pre-installed gases eliminate the need to recalibrate for different gases and therefore reduce the cost of ownership.
🕒 Fast delivery from stock, shipment in 2 business days
🇪🇺 Made in the EU
💬 Online support available
💳 Secure payment via Credit Card, PayPal or Bank transfer
✅ Competitive prices
Use the table to select the instrument that matches your flow
Pre-installed Gases | MV-101 | MV-102 | MV-104 | MV-106 | MV-108 |
|---|---|---|---|---|---|
| Air, N2, O2, CO2, CO and N2O | 10 .. 200 mln/min (CO2 and N2O n.a.) | 20 .. 2000 mln/min | 0.04 .. 20 ln/min | 0.4 .. 200 ln/min | 1 .. 500 ln/min |
| Ar | not available | 40 .. 4000 mln/min | 0.08 .. 40 ln/min | 0.8 .. 400 ln/min | 2 .. 1000 ln/min |
| CH4, C3H8 and C4H10 | not available | 10 .. 1000 mln/min | 0.02 .. 10 ln/min | 0.2 .. 100 ln/min | 0.5 .. 250 ln/min |
MASS-VIEW the digital rotameter
As for the current century, Bronkhorst developed the MASS-VIEW gas flowmeter series which is the digital high-tech alternative to these traditional variable area meters(gas rota meter).
Thanks to today’s digital possibilities, many other advantages arises for many industrial processes and chemical plants.
The MASS-VIEW digital rotameter series operate on the principle of direct thermal mass flow measurement (no by-pass); rather than measuring the volume flow it measures the actual mass flow, without the need of temperature and pressure correction.- The digital OLED display provides you an easy direct or relative reading of the actual flow. Herewith parallax errors are excluded.
- With this digital rotameter, you can obtain the accumulated flow easily. This availability of data gives insight in costs, leading to data driven decision making power.
- A digital rotameter can be mounted in any position. The variable area meter needs to be mounted in a vertical position.
- The flow path is made of sustainable aluminum rather than plastic or glass which is fragile.
- The digital instruments are standard equipped with 0-5V, RS-232 and Modbus-RTU output signals. The VA meters usually do not have any output signal available at all.
- The digital rotameter has 2 built-in relays which indicate an alarm situation. Herewith, external devices can be controlled.
- A MASS-VIEW rota meter has multiple pre-installed gases on board as opposed to traditional VA meters, which are produced for one particular fluid only.
- Digital instruments have a range ability of 1:100 and 10 pre-installed ranges, as opposed to VA meters usually have a range ability of 1:10 and one single full scale range only.
Why Professionals Choose a Digital Rotameter
Traditional Rotameter In today’s industrial environment, ranging from process engineering for welding and machine building for biotechnology or laboratory applications, downtime is costly and inaccurate measurements are a serious risk. While traditional rotameters rely on gravity and a floating element inside a glass tube, modern processes demand smarter data and robust digital instrumentation.
In our web shop, we help engineers transition from outdated analogue systems to modern digital instruments. This guide explains why the digital rotameter is becoming the industry standard, how it saves costs, and why buying your digital rotameter online is easier and faster than ever.
Digital vs Analogue: Why MASS-VIEW Wins
| Feature | Traditional Rotameter (VA) | Digital Rotameter (MASS-VIEW) |
|---|---|---|
| Reading | Float level, prone to parallax error | OLED display with digital bar graph |
| Measurement | Volumetric, P/T dependent | Thermal mass flow, Pressure and temperature independent |
| Accuracy | 5–10% FS + reading error | Up to 2% reading + 0.5% Full Scale |
| Safety | Glass tube may break | Robust design, no glass |
| Data Output | None or costly options | 0-5V, RS-232 and MODBUS RTU |
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Real-World Applications
Welding⚙️
Gas mixture must remain stable during welding. Analogue rotameters give incorrect readings. Digital instruments correct for this, reducing rework and improving quality.
Biotech and Medical Labs🌡️
Reproducibility is critical. A rotameter with digital output logs flow data, providing traceability impossible with analogue meters.
What Is a Digital Rota Meter and How Does It Work?
A digital rota meter is the next generation of the traditional Variable Area (VA) rotameter, offering all the visual familiarity while replacing mechanical components with advanced thermal mass flow technology.
Traditional rotameters measure volumetric flow, making readings heavily dependent on pressure and temperature. When conditions change, the reading is no longer accurate.
In contrast, a digital rotameter measures the actual mass flow (number of gas molecules), meaning:
- Readings are largely independent of temperature and pressure
- No recalculation or conversion charts are needed
- You always see the correct value in the unit you choose (ln/min, g/h or sccm)
This significantly improves process stability and eliminates interpretation errors.
The Importance of Connectivity: Rotameter with Digital Output
Manual flow reading is outdated. A rotameter with digital output provides seamless integration with automation systems.
The MASS-VIEW series includes:
- Analogue outputs: 0–5 V
- Digital interfaces: Modbus‑RTU or RS-232
- Programmable alarms: Built-in relay outputs for alarm output
This transforms a passive indicator into an active device that helps prevent failures and enables predictive maintenance.
Buy Digital Rotameter: Avoid Traditional Procurement Delays
Buying technical equipment through traditional channels often means long productions times, no pricing upfront, and slow response.
At Massflow-online.com, you can buy a digital rotameter instantly, with:
- Real-time stock visibility
- Immediate online ordering
- No middlemen or sales delays
We ship worldwide and keep common models for air, nitrogen, oxygen, argon, hydrogen and more directly in stock.
Transparent Pricing: Digital Rotameter Price
Many suppliers use “price on request”, making procurement inefficient. We believe in transparency every digital rotameter price is listed openly online.
While a digital instrument costs more upfront than a plastic analogue rotameter, the long-term savings are considerable:
- No need for recalibration for switching gas
- No ''guessing'' (parallax error) for flow rate, can be readout directly from screen
- Fewer failures thanks to alarms and continuous monitoring
The digital rotameter price quickly pays for itself in accuracy and reliability.
Order Your Digital Rotameter Online
Ordering a digital rotameter online may seem obvious, but in this industry it’s revolutionary. Many suppliers still rely on regional visits and manual quotations.
Our professional webshop offers:
- Easy filtering by flow range, gas type, and pressure rating
- Configurable multi-gas and multi-range instruments
- Secure 24/7 online ordering with instant confirmation
Frequently Asked Questions
Where can I buy a digital rotameter?
At Massflow-online.com, the official distributor of MASS-VIEW flow meters from Bronkhorst High Tech.
What is the digital rotameter price?
Prices usually start around € 799,- depending on the model and functions.
Can I order a digital rotameter online?
Yes, available from stock. Secure payment with Credit Card or PayPal.
Is fast delivery available?
Many models are available directly from stock and ship within a few working days.
Optimise Your Process Today
Precision and efficiency define modern industry. Upgrading to a digital rotameter means better accuracy, higher reliability, and smarter data integration.
In the webshop you can compare the digital rotameter price, and order your instrument today. We deliver quickly, pack securely, and ensure your device works straight out of the box.