Flow meters

Inductive flow meter flow 40 serves, thanks to its certification, primarily for business measurement of the amount of liquids delivered. It is characterized by high operational reliability, accuracy and stability of metrological parameters.

Key technical parameters

Standard versions can be made either in a compact or separate version.

Process connections are available, flanged, sandwich (flanged), threaded and then ductile fitting (DIN 11851) or clamp.

The flow meter also offers a wide range of outputs and communications for connection to various control systems. The customer has two pulse outputs (max. 400 Hz), current output 4 ÷ 20 mA for instantaneous flow monitoring or MBus or RS485 communication with M-BUS, AMSET, J & amp; C, C30 and others. Of course there is an extensive data archive. The two-line LCD display shows instantaneous flow, volume, return volume, date and time, monthly archive, daily archive, failure record, tariff value, and, in the event of a malfunction, its description. The meter also has two pulse inputs for external meters.

The flexibility of use is provided by several types of tabs, hard or soft rubber, rubber with a certificate for drinking water, PTFE, PFA or E-CTFE.

Application of the meter in industry

Inductive flow meter FLOW 40, thanks to its certification, is primarily used as a commercial gauge. It is used for use in the water industry eg in sewage treatment plants or in sewage networks as well as in industrial water distribution networks etc. It can also be used in the food and chemical industry for special media.

Inductive flow meter FLOW 40 and its main advantages

• certificate of commercial meter according to ČSN EN 1434
• high accuracy of measurement across the flow range
• long-term stability of metrological parameters
• simple and trouble-free operation and maintenance
• the flow sensor can be adapted to a very aggressive or alkaline fluid
• Does not contain moved parts
• high abrasion resistance
• does not cause pressure drops
• local and remote reading of all archived data in daily and monthly archives
• possibility to transfer data via GSM

The inductive flow meter Flow 38 with display unit in several versions is designed for a wide range of measurements of electrically conductive fluids in various industries.

Key technical properties

Due to wide variability of designs, the customers may modify this precise flow meter according to their specific requirements both mechanically and by setting the evaluation unit on their own.

The meter’s evaluation unit is made in three versions. The first is the standard design (head), the advantage of which is primarily high IP rating (IP67) or rotatability up to 350°. Meter reading becomes very comfortable for the customer. The standard design can be made either in compact or separated versions. Another type of evaluation unit is the front design. The placement of the compact version unit from sensor’s front is its advantage. The separated design of the front version offers the possibility of DIN rail attachment. Panel design is the last version of the evaluation unit. Possible installation of the display unit in the electrical cabinet door is its great advantage.

There are process connections, namely of flange, sandwich, (inter-flange), threaded and dairy screwed (DIN 11851) or clamp types.

The flow meter offers a wide range of outputs and communications for connecting to various control systems. There are two pulse outputs for the customer (400 Hz max.) with the optional setting to flow switch/state/direction, 4÷20 mA current output or RS485 communication (M-BUS/Mod-Bus protocols). Data can be stored in micro SD card also in datalogger mode.

The flexibility of use is ensured by several types of lining, namely made of hard and soft rubber, rubber with certificate for drinking water, PTFE, PFA or E-CTFE.

Application of the meter in industry

Inductive flow meter FLOW 38 nmay be used in the most diverse industrial branches such as water management (water treatment plants, control measurements in nodal points), agriculture (irrigation systems, food processing (diaries, breweries, etc.), paper industry, power engineering or mining. Last but not least, these are batching systems in the most diverse technologies where display unit is needed.

Inductive flow meter FLOW 38 and its main advantages

• Display unit freely rotatable by 350° for comfortable reading
• Add-on card for storage/datalogger in microSD, MBus communication
• Two fully adjustable outputs impulse/flow switch/status/flow direction
• Very simple and intuitive service
• High variability of process connection.
• Customized building length
• Sensor in full corrosion-proof design
• High dynamic measuring range
• High measurement accuracy and repeatability
• Wide range of materials for liners and electrodes

inductive flow meter FLOW 33 without display unit is an ideal solution for the customers who need pulse or current signals from the meter and the display unit is not then necessary.

Key technical properties

The evaluation unit of this flow meter is found right on the sensor itself. The meter is manufactured in structural steel; however, full corrosion-proof construction is commonplace. The meter’s state is indicated by four informative LEDs found on the evaluation unit. Electrical connection is provided with the standard 8-pin M12 connector. The invaluable advantage of the meter is the possibility of its setting up through Bluetooth communication using its own android/windows software. The users can set up the flow meter with their own mobile devices, such as mobile phones or tablets, right at the installation site. Thanks to this application, you can carry out simple diagnosis on the meter, simulate a flow rate within wiring check, change all meter’s settings, including two impulse contacts (or using the flow switch NO contact and the status signal) and one 4÷20mA current loop output. Last but not least, you can use it to display the current flow rate.

It is picked up either by stainless steel, tantalum or Hastelloy electrodes.

Process connections are available in the form of flanged- or inter-flanged connections, those used in food process, screwed, clamp or threaded connections.

The flexibility of use is ensured by several types of lining, namely made of hard and soft rubber, rubber with certificate for drinking water, PTFE, PFA or E-CTFE.

Application of the meter in industry

The FLOW 33 may be used in the most diverse industrial branches such as water management (water treatment plants), food processing (diaries, breweries, etc.), paper industry, power engineering or mining. Thanks to high sample rate of the test signal, the flow meter reaches a very high repeatability (0.2%) which is utilized with advantage in batching process for both quick and small batches, e.g. in filling machines (carousels). Another typical application is the transmission of instant flow rate or volumetric flow quantity to the superior PLC without the necessity for local display unit in all sorts of technology. The meter is made in a very robust construction, and that is why it is suitable in heavy industry where long service life under the heaviest operating conditions is required.

Inductive flow meter FLOW 33 a and its main advantages

• High quality and reliability
• Control by Bluetooth communication using our own android/windows software
• DC current output and impulse contacts with optional change to the flow switch contact and meter’s state contact
• Simple connection using the standard 8-pin M12 connector
• Possibility of compact full corrosion-proof construction
• Rock steady construction
• High variability of mechanical connection
• Wide range of materials for liners and electrodes
• The state is indicated by LEDs
• Easy installation and almost maintenance-free attendance

The inductive flow meter Flow 33 Ex without the display unit made by Comac Cal is an ideal solution for technological processes, e.g. in mining or chemical industries where there are demanding requirements with explosion atmosphere hazard. The meter can be made both in structural steel with polyurethane coating and in full corrosion-proof construction thanks to which the meter can be used everywhere where long service life is required under heavy duty conditions with transmission of measurement signals to the superior control systems.

Key technical properties

The meter is in compact design. The meter can be used in various technologies where the customer needs impulse or DC current signals from the meter to control the process without the display unit and the meter is to be placed in explosive atmosphere at the same time.

Inductive flow meter FLOW 33 Ex has ATEX approval for the following classes:

• I M1 Ex ia I Ma
• I M2 Ex mb I
• II 1G Ex ia IIC T6 Ga
• II 1D Ex ia IIIC T85°C Da

The flow meter is equipped with two informative LEDs located right in the top cover of the evaluation unit. The user is continuously informed by the LEDs about the meter’s status distinguished with four colours.

The output of the meter can be a combination of impulse or 5÷15 Hz frequency outputs and 4÷20 mA or 0.2÷1 mA current loops. Flow meter settings cannot be changed and its outputs are constant (not equipped with Bluetooth communication interface). Therefore, more attention must be paid to specification of electrical outputs.

Electrical connection is provided through ATEX connectors according to the above-mentioned zones, particularly by 7-pin Amphenol C016 or Sealcon M23 connectors.

Application of the meter in industry

It is found in the most diverse industries, such as mining, petrochemical, chemical, etc.

Inductive meter FLOW 33 Ex and its main merits

• ATEX certification for explosive atmosphere
• The status is indicated by LEDs
• Possibility of compact full corrosion-proof construction
• Rock steady construction
• High variability of mechanical connection.
• Wide range of materials for liners and electrodes
• Easy and maintenance-free attendance

FLOW 32 inductive meter offers an easy and economically friendly solution. It is a fully maintenance-free flow meter which is produced in two versions: with the display or without the display unit. This flow meter is delivered with standard IP65 rating designed for technological processes of the most diverse batching or production stations where simplicity and minimum maintenance requirements are important to customers.

Application of the meter in industry

The inductive flow meter flow 32 can be used, e.g. in food processing, particularly in dairy or in chemical industry where it is used in gas stations for monitoring of selected service fluids (washer fluids, etc.)

Key technical properties

When looking at some of the technical properties, the evaluation unit is made for 24VDC supply voltage by default. The customer may choose between the impulse output (with customized constant and pulse width) or the 4÷20 mA analogue output. The fact that FLOW32 can be used as a flow switch, possibly with a dead zone, ranks among other advantages of the inductive flow meter.

The FLOW 32 inductive meter is very easy to install. Electrical connection of the meter to the system is made possible through the cable entry right to the terminals.

FLOW 32 main advantages

• FLOW 32 inductive meter excels, among others, in very easy installation and simple attendance
• It can be supplied without any connectors
• High repeatability of measurement over full-scale flow range
• Possibility of choosing pulse output or DC current output
• High resistance to abrasion
• Measurability of the bulk of media except crude oil products
• Possibility of using the flow monitoring function (flow switch)

Inductive flow meter FLOW 45, meter uses a lithium battery for power so it does not need external power supply as it was developed especially for placing in areas without available supply voltage. Its application is ideal e.g. in water supply lines or at remote irrigation systems, etc., in locations without available mains power supply. The battery-operated flow meter excels in high accuracy within the entire flow rate range.

Key technical properties

The battery-operated FLOW 45 meter is delivered in DN15 up to DN200 sizes. The display unit with a single line customized alphanumeric LCD display is rotatable by 350°, which provides the customer with prompt and comfortable meter reading. It is made in compact or separated versions.

Before every measurement, all functions and parts needed for correct measurement are diagnosed. Based on the results, the meter is able to identify an empty piping and cancel the entire measurement or conversely, to evaluate the flow direction and include the result in corresponding summary registers.

Various process connections are available, namely flanged, sandwich (inter-flanged), threaded and also screwed connections for diary (DIN 11851) or clamp type.

The flow meter allows connecting to superior control or monitoring systems using impulse output, RS485 communication (M-BUS/Mod-Bus protocols) or by GSM data transfer. Data can be stored in micro SD card also in datalogger mode.

The flexibility of use is ensured by several types of lining, namely made of hard and soft rubber, rubber with certificate for drinking water, PTFE, PFA or E-CTFE.

Service life of the internal lithium battery may reach 5 years with 8-sec. measurement period. For calculation of battery service life, however, except for measurement period, outputs or communication used are important as well. The more power demanding outputs are, the shorter battery service life is. Therefore, it is necessary to select carefully the type of communication or output and data transfer period.

Application of the meter in industry

Inductive flow meter FLOW 45 can be used in a wide range of industries such as water management (water treatment plants, control measurements in nodal points), agriculture (irrigation systems), food industry (diaries, breweries, etc.) where portable measurement is necessary.

Inductive flow meter FLOW 45 and its main advantages

• Power from internal lithium battery
• Possibility of external power supply
• Module for GSM data transfer
• Archival storage of data in SD micro card
• Display unit freely rotatable by 350° for comfortable reading
• Nearly maintenance-free operation
• Simple installation and attendance
• It does not cause pressure losses

Paddlewheel flow meter FPW with the paddlewheel is based on the principle of mechanical measurement. The FPW flow meter with paddlewheel, being made in FPW 05, FPW 10 and FPW 20 versions, represents an alternative solution to industrial measurement of electrically non-conductive liquids for which our inductive flow meters cannot be used.

The FPW mechanical flow meter with paddlewheel is a simple and very affordable solution with undemanding installation.

FPW flow meter key technical properties

The FPW flow meter is designed for continuous measurement of clean liquids without solids with flow velocities of 0.3÷6 m/s (ideally 1.5÷3 m/sec).

The measurement itself is implemented by rotation of the paddlewheel rotor fitted with stainless steel needles scanned by the inductive sensor. Thanks to this solution, without using magnetic needles, no fine ferrous particles are deposited on the paddlewheel, which contributes to long service life and stability of the metrological parameters. The velocity of rotary motion is directly proportional to flow velocity of the measured medium. The measuring probe is put inside the piping at an adequate depth and provided with an arrow indicating the flow direction of the medium for proper displacement.

The flow meter output can be connected to a wide range of control systems or to the display unit.

The meter is made in three versions:

• FPW 05 – Impulse signal (without a variable constant)
• FPW 10 – Impulse (variable constant)/ adjustable normally open contact
• FPW 20 – Impulse (variable constant)/ adjustable normally open contact / 4÷20mA

Application of the mechanical flow meter in industry

The FPW paddlewheel flow meters are advantageously used if less measurement accuracy is needed but the purchase price is forced down. Its robust design predetermines the flow meter to wide employment in various types of industry and on all sorts of clean liquid media.

Paddlewheel flow meter FPW 05/10/20 and its main advantages

• Quick and easy installation
• Simple operation
• very simple and prompt service
• Universal use (non-conductive media are also measured)
• Long service life
• Various fittings
• absence of magnets (longer service life)
• Optional all-plastic construction/li>
• “Self-teaching” system to set up a switching point
• Variability of output signals
• For FPW 10 and FPW 20, possible cable connection with M12 (4-pin) connector
• Possibility of using the flow monitoring function (flow switch)
• State indication using status LEDs
• Low purchase costs compared with other measurement principles