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Rotary piston gas meters have been manufactured since 1930 by Aerzener Maschinenfabrik, one of the largest and oldest manufacturers worldwide. The basis for the design of the gas meter series is from many years of experience and continual dialogue with the end users, as well as using the harmonized EU-standards which will apply to all installations within the European Market. They are manufactured in accordance wiht the Aerzen tradition for quality corresponding to the quality assurance system, certified to DIN ISO 9001 and as per pressure device guideline DGRL 97/23/EG.
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for volume measurement of gases in various types of construction an sizes. Gas meter sizes from G 40 up to G 4000 for gas volume flow measurement from 0,65 m³/h - 6.500 m³/h. Measuring pressures up to 25 bar. Works tested or officially calibrated as per national and EU-directives.
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Application
PTB- and EEC, ofgem, other International approvales for official calibrated use can be universally adapted to the flow direction without requiring the involvment of calibration authorities
no flow straightening on upstream or downstream side needed
can be combined with electronic compact correctors
easy operation and maintenance
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RITTER drum-type gas meters are universally applicable for measuring the volume of flowing gases and are particularly effective when measurements demand the highest precision.
The major advantage and the superiority of volumetric Gas Meters (like Drum-type Gas Meters) over other measurement principles, which determine gas volume using secondary measurable variables such as speed, heat capacity, hot-wire resistance or similar, is that the volume is directly measured. That means that the condition and the composition of the gas has no influence on the measurement accuracy.
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Sierra® offers three types of Immersible (Insertion) mass flow instruments for gas, liquids and steam flow measurement applications in small to very large pipes up to 200". Our Heavy-Industrial Thermal mass flow meter s are ideal for the roughest industrial environments and our line of Light-Industrial Thermal mass flow meters for a cost-effective mass flow measurement solution for Compressed Air and ALL inert industrial gases and methane (Natural Gas).
Our Heavy-Industrial Thermal mass flowmeter products are designed for the most demanding industrial gas mass flow measurement applications. Featuring heavy-duty 316 stainless steel wetted materials, no moving parts and digital signal processing, our Heavy-Industrial Thermal mass flow meter line is the answer for the roughest industrial environments.
We designed our Light-Industrial Product Line specifically to provide a cost-effective mass flow measurement solution for ALL inert industrial gases and methane (Natural Gas). The most common customer applications are air, nitrogen, and methane. Because of the small footprint, our Light-Industrial products, Boiler-Trak™, Accu-Flo™ Model 600, Fast-Flo™ Model 620S, & Accu-Mass™ Model 730 are a popular choice for Original Equipment Manufacturers (OEM's) who need an economical solution and have space constraints. Sierra's Light-Industrial products deliver turndown and accuracy at a price that can’t be beat.
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Digital alternative for a VA meter with totaliser and alarm functions.
MASS-VIEW(r) has an OLED display showing:
- actual flow rate (bar graph and actual value or percentage)
- desired flow units
- type of gas (7 pre-installed gases)
- totalized flow
- min. and/or max. alarm
Other features are:
- Freedom from parallax error
- Virtually independent of pressure and temperature variations
- Low pressure drop
- Wide flow ranges
- Fast response
- High accuracy
- Alarm and counter functions (2 alarm contacts available on meters)
- Analog (0..5 Vdc) and digital communication (Modbus-RTU, RS-232 interface)
- Configurable password protection
- 7 pre-installed gases available (Air, N2, O2, CO2, Ar, CH4, C3H8) or He or H2
- 4 selectable ranges (100%, 50%, 25% and 10% of maximum fullscale range)
- Digitally calibrated
- 3 year warranty
You can order these instruments online and your order is shipped within two working days.
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The ST75 from Fluid Components International (FCI) is an accurate, no moving parts, direct mass flow measurement and monitoring solution for fuel gases, air, compressed air, inert and other gas flows within industrial processes. It is available in nine different sizes for direct, in-line installation in line sizes from 1/4 to 2 inch [6 to 51mm].
Combining precision lithography structured platinum RTD sensors embedded in FCI's equal mass thermowells with microprocessor electronics and precise actual gas calibration, the ST75 achieves outstanding flow measurement performance. ST75's direct mass flow measurement eliminates costs and space of additional sensors required by inferred technologies.
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Reliable measurement systems are required for process-related monitoring and control of flow velocity. These must be resistant to environmental influences.
Technology
SCHMIDT® Flow Sensors for air and gases manage without moving parts, exploit the hermal measurement principle consequently and gain from the latest thinfilm and semiconductor technology. Highly integrated circuits and microprocessors technology have led to highly sophisticated sensors who compare favourably with any economic demand.
Special features of SCHMIDT® Flow Sensors:
* No moving parts = no wearing
* Very high turn-down ratio
* Quick response time
* Small pressure loss
* Ideal for very small flow velocities
Applications
* Heating, ventilation and air-conditioning technology
* Environmental technology
* Clean-room technology
* Process technology
* Compressed-air
* Medical technology
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initial smallest measurable flow rate:
0.2 m/s
terminal flow rate:
30 m/s; 60 m/s; 120 m/s; 150 m/s; 180 m/s; 200 m/s
working temperature range:
-10° C... 140 °C
maximum working pressure:
up to 16 bar above atmospheric
materials in contact with the medium:
stainless steel; glas; epoxy resin
probe with diameter 10 mm in different lengths from 165 mm up to 965 mm
alternatively with / without transducer
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Compact units for use in Ex-applications:
for gas: Ex II 1/2 G Ex d e [ia] IIC T4 and
for dust: Ex II 1/2 D Ex iaD20/tDA21 IP6x T135°C
sensor for use in category 1 (Ex-zone 0 rsp. 20)
transducer housing for use in category 2 (Ex-zone 1 rsp. 21)
probe with diameter 10/15 mm in different lengths from 165 mm up to 1465 mm
initial smallest measurable flow rate:
0.2 m/s
terminal flow rate:
30 m/s; 60 m/s; 120 m/s; 150 m/s; 180 m/s; 200 m/s
working temperature range:
-10° C... 60 °C; 130 °C; 140 °C (dependent on the category and the temperature class)
maximum working pressure:
up to 16 bar above atmospheric
materials in contact with the medium:
stainless steel; glas; epoxy resin
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SCHMIDT® Flow-sensor SS 20.260 for process technology
For the employment in process technology the latest SCHMIDT® flow sensor SS 20.260 offers three crucial upgrades compared to his forerunner. With an expanded measuring range of 0 … 50 m/s the sensor can be applied for flow rate control in a wide range of systems. Many processes require the measurement of heated gases and therefore an enhanced operating temperature. Depending on the configuration of the SS 20.260 it is up to 120 °C. The temperature can be measured with an additional linear output and no separate sensor is required any more. The unit is ro-bust due to a chamber in which the sensing element is protected against impacts. The stainless steel sensor tube is available in different length and thus can be placed at the correct position regardless of the size of the duct. Two LED’s indicate the correct operation or inform about wrong supply voltage or sensor defects.
Applications: Flow measuring in air ducts, volume flow measur-ing in test benches, control of combustion air of oil, wood, gas or coal burners, flow control in cool-ing or drying constructions.
Technical data: Immersion sensor with integrated transducer.
Use of sensor: Free air and guided air in ducts from 25 to 1.000 mm (1 to 40 inch).
Medium: Air, Nitro-gen, Argon and other non-burnable gases. Measuring ranges: 0 … 2.5/10/20/40/50 m/s.
Pressure: Atmospheric.
Power supply: 24 VDC / power consumption only 30 mA.
Output: 0 … 10 V / (0)4 … 20 mA linear.
Functional display: 2 Status LED’s
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The GF03 Flare and Variable gas flow meter utilizes FCI's exclusive patented thermal resistance analyzer correction design that combines flow and gas composition sensors in a proprietary gas calibration technique. This innovative engineering breakthrough in thermal dispersion technology provides superior accuracy and repeatability in changing gas compositions.
The GF03 single insertion flow element design offers simplified installation and more reliability at a lower cost total cost than any other mixed gas application solution. FCI's unique design eliminates the need for additional temperature and pressure devices that increase the initial purchase price and maintenance costs typical of ultrasonic technology.
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Massflow under control
Massflow gas measurement is independant of temperature and pressure, thus controlling a process gas can be stable and reproduceable. Massflow controllers contain a PID-controller and can be driven through norm signal or field bus. Massflow meters are without actuators and are only for measuring massflow.
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Bronkhorst High-Tech Mass Flow Meters are made to customers’ specification, in various styles, suitable for use in laboratory, industrial environment and hazardous areas. EL-FLOW series Mass Flow Meters and Controllers for gas applications have a housing designed for laboratory and clean processing conditions. The Mass Flow Meters of the IN-FLOW series are of weatherproof design (IP65) for use in pilot and production plants in industrial environments (ATEX Zone-2). The Mass Flow Meters of the EX-FLOW series are suitable for gas flow applications in hazardous environments. The intrinsically safe measuring head is tested according to ATEX Zone-1 (protection II 2 G EEx ib IIC T4). Bronkhorst Mass Flow Meters can be supplied in ranges starting from 0,02…1 mln/min up to 11000 m3n/h air-equivalent, with pressure rating between vacuum and 700 bar.
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The ST75 from Fluid Components International (FCI) is an accurate, no moving parts, direct mass flow measurement and monitoring solution for fuel gases, air, compressed air, inert and other gas flows within industrial processes. It is available in nine different sizes for direct, in-line installation in line sizes from 1/4 to 2 inch [6 to 51mm].
Combining precision lithography structured platinum RTD sensors embedded in FCI's equal mass thermowells with microprocessor electronics and precise actual gas calibration, the ST75 achieves outstanding flow measurement performance. ST75's direct mass flow measurement eliminates costs and space of additional sensors required by inferred technologies.
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MASS FLOWMETERS FOR LABORATORY AND GENERAL PURPOSE APPLICATIONS
The TSI Model 4040 Mass Flowmeter can be used for a multitude of gas flow measurement applications. Whether measuring gas flows in a laboratory or manufacturing setting, TSI general-purpose mass flowmeters provide accurate results with multiple data output options. The display versions come complete with accessories making setup and operation fast and convenient.
The TSI mass flowmeters are specified as 2% of flow rate reading. One TSI mass flow meter covers the same range as three or more "percent of full scale devices" ... with better accuracy at most points! Fast 4 millisecond response ensures accuracy in fluctuating flows. This fast response time of the TSI mass flowmeter is ideal for closed-loop control systems and integrated volume measurements. Low pressure drop of the TSI mass flowmeter minimizes flow circuit back pressure and its impact on the system.
Features and benefits:
- Fast and accurate
- Low pressure drop
Applications:
- Medical
- Industrial
- Laboratory
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Gas Flow Regulators & Switches with needle valve with high/low alarm
Alongside numerous other possible uses, the red-y compact becomes an affordable alternative to the traditional variable area flowmeters.
In addition to its independence from the mains supply the compact series offer a clear and accurate indication of flow, insensitive to pressure and temperature changes, an integrated manual control valve and configurable switch functions.
- First mass flow meter with battery power
- At least two years of autonomy
- CMOS sensor technology
- On-the-spot direct reading, including bar graph
- Extremely compact unit
- Insensitive to pressure and temperature changes
- High accuracy and turndown ratio
- No moving parts
- Resistant to pressure bumps
- No restriction on installation position
- No inlet section required
- Optional 24 Vdc supply, manual valve & switch
- 3-year warranty
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The FMA1000 Series industrial air velocity and temperature transmitter/indicator measures and displays air velocity as well as air temperature in research and development labs, HVAC applications, and other manufacturing processes. The sensor design is based on three RTD elements, one measures air temperature and the other two measure air velocity by measuring the heat loss from the RTD sensor as it cools down by the air flow.
The FMA1000 series offers many standard features such as display of air velocity and temperature, two analogue outputs corresponding to air velocity and temperature, high and low voltage alarm outputs, USB serial interface, and Windows® based data logging software. The FMA1000 displays the air velocity in different engineering units such as FPM, m/sec, miles/hour, and km/hour. The air temperature is displayed in °C or °F.
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KOFLOC 7100NL, 7100S
The KOFLOC Micro Gas Flow Meter MODEL 7100NL SERIES is a low-cost, low-power, quick response mass flowmeter with a chip-sensor based on the MEMS technology. The solid-state sensor assembly is very light & compact, and draws very little power, allowing the unit to run on a battery. it is thus ideal for incorporation into a portable gas analyzer and other type of equipment where size and low power-consumption are important criteria. Accepting power supply between 5 and 24 VDC with operating temperature between 0 to 50¡ÆC make the MODEL 7100NL easy choice in numerous applications.
FEATURES
- Miniaturized MEMS sensor assembly - Quick response of 70ms or less
- Low power consumption of just 20mW - Low power requirement of just 5VDC single power source
APPLICATIONS
- Flow monitoring - Flow control - Leak sensor
- Gas analyzer
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A comprehensive range of thermal mass gas meters for flows as low as 0-10 SCCM and up to emissions stack-flows are available. These measure mass directly not requiring the measurement and computation of pressure and temperature. The meters have a wide measurement range.
Our experienced engineering staff are pleased to offer meter selections to meet specific application requirements. Meters are engineered to meet particular process needs both in materials and design. A range of high-pressure flowmeters which illustrates our engineering skills and flexibility can be seen in our Oil Industry Flowmeters section.
We take pride in our manufacturing expertise and high quality control standards. Litre Meter has established a reputation in over three decades of operation for fast response and excellent delivery.
Suitable for high accuracy mass measurement for any clean gas. Spacial units avialable for ultra high purity applications and the S100 dial-a-gas unit allows 10 gas calibrations for multiple gas measurement.
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The ASF1400 & ASF1430 gas flow sensors set a new standard for air flow, mass flow or gas flow sensors.
Intelligent CMOSens® Technology allows an integrated, digital and reliable mass flow sensor at very attractive cost.
Features
- Unique dynamic flow range from 0.03 to 400 sccm
- Accuracy 0.05 % full scale or 1 % measured value (greater value applies)
- Lowest detectable mass flow rate down to 0.03 sccm
- Fully calibrated and temperature compensated
- Linear digital output signal (RS-232 or SPI standard)
- Fast response time (ASF1400: 150ms / ASF1430: 5ms)
- Rugged chemically innert PBT housing
- CE-certified / FCC (CFR 47)
- Leading CMOSens® Technology for superior performance
- Unbeatable price-performance ratio
- Easy-to-use due to calibration & standard digital interface
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MCF SERIES
Dedicated air/nitrogen mass flowmeter to save energy when using compressed air or nitrogen. Low cost, high performance, Compact and vibration resistant
CMG SERIES
The CMG series is a robust yet compact gas mass flow monitor for Gas/Air ratio control and Energy management on individual burners powered by various gas types including natural gas, propane and others.
CMS SERIES
High accuracy / high resolution gas mass flow meter suited for light industrial or laboratory applications, providing customer-selectable gas types and a multitude of output signals.
MCS100 is a ultra-compact, fast response gas mass flow sensor offering a bi-directional flow measurement. Is ideally suited for physics, medical and semi-conductor applications.
MCS200 :Gas Mass Flow Meters MCS200 is a compact, high accuracy and fast-response air/nitrogen mass flow sensor equipped with Yamatake's own µF(MicroFlow®) sensor chip with temperature or pressure compensation.
Can be installed in extra small mounting space using manifold mounting
It is ideal for flow measurement in numerous applications.
– Air samplers
– Gas analyzers
– Gas detectors
– Home oxygen concentrators
– Electronic/optical component pick and place detection
- Die bonder
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Measuring range 0-10 Ncm³/min.... 0-500 Nl/min. N2
Connection 1/4 NPT, Swagelok 1/8" - 1/2"
Material nylon; st. st.
Max. pressure 10 bar (nylon), 35 bar (st. st.)
Max. temperature 50°C
Accuracy ± (1) 1,5 % FS
Analogue output, option digital display
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Our Mass flow meters for gas use Laminar Flow Element technology. This is a subset of differential pressure flow meters.
User selecs gas
Rapid response
NIST traceable
All common non-aggressive gases such is air, nitrogen, argon, helium, hydrogen, natural gas and carbon dioxide.
Digital indication with either a voltage or a current transmitter
Type 4 construction (weather proof)
Built-in alarm switches
Able to install in any orientation
Intrinsic safety optional
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