Katronic clamp-on ultrasonic flow meters equipped with the optional heat quantity measurement function have been used for many years as portable and permanently installed heat meters by businesses of various industries and municipal organisations all over the world.
Due to their capability of determining energy transmission, they are particularly useful for the building services activities and are also frequently used within the food and drink industry where heating and chilling applications are essential parts of the production process.
The clamp-on mounting technique of the flow and temperature sen-sors enables the flow meters to measure the heat quantity non-invasively and non-intrusively from outside the pipe. For this reason there is no need to cut into the pipe and therefore no interruption of flow, no pressure drop, and no risk of leakage.
The portable KATflow 230 can be used for spot measurements as part of energy consumption surveys on heat exchangers, heating and chilling lines, HVAC systems, and boilers. In the case of retrofit situations, the KATflow 150 flow meter is the ideal solution for permanent installation. With various process inputs, outputs and serial interfaces, the KATflow 150 can easily be embedded into automated control systems, and can act as an additional control
unit for heating and cooling systems.
How it works
A set of ultrasonic flow sensors is installed on a suitable pipe section along with two PT100 temperature sensors which are mounted to the pipe at the inlet and outlet of the chosen location. From the specific heat capacity of the flowing medium, the energy transmission can be determined using the calculated mass flow
rate and temperature difference between the inlet and outlet.
The ultrasonic flow sensors cover a pipe diameter range from 10 mm to over 3,000 mm (0.4 to 118 inch) and work on any common pipe material and temperatures from -30 °C to +200 °C. The PT100 clamp-on temperature sensors supplied with the flow meter match this temperature range and can be easily connected to the flow meter.
Parameters of the measurable liquids are stored on the transmitter and can be chosen from a menu. This includes commonly used heating media such as hot water and oil, as well as refrigerants such as chilled water, water/glycol mixes and R-coded chemical refrigerants.
The KATflow 230 and KATflow 150 feature an internal data logger with a capacity of up to 100,000 samples, which stores all measured and totalized values and parameter sets. When equipped with a data logger, the flow meters are supplied with the KATdata+ software which enables the user to download and view the flow data on a computer. The data can be transferred via the instrument’s RS 232 interface for which an RS 232 to USB converter cable can be supplied.
Both the KATflow 230 and KATflow 150 offer process outputs including 0/4…20 mA current outputs, open-collector outputs with totalizer pulse, and digital relay outputs. Additionally, the KATflow 150 can be equipped with an RS 485 interface. Apart from the units specific to the heat quantity measurement function, the Katronic flow meters display various units for the volumetric flow rate, flow velocity, mass flow rate, flow volume and mass.
The measurement units specific to the heat quantity measurement function displayed by the KATflow 150 and KATflow 230 are W, kW, MW for heat flow, and J, kJ, MJ for heat quantity.
Ease of use
Every instrument of the KATflow series of clamp-on ultrasonic flow meters can be set up and measurements be obtained within a matter of minutes. This is made possible by their intuitive menu structure and Setup Wizard function, which guide the user step by step through the configuration process. Additionally, the flow meters offer the unique Audible Sensor Positioning Assistant – a new intelligent sensor location function which assists the user during the sensor installation process by giving real-time graphical instructions and audible signals.
Please contact +6221-5467618, +6221-54212399 or email [email protected]
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Fax : +6221-5467617
Email : [email protected]