HEDLAND
Frequently asked questions
Common questions about HEDLAND from 3G Electric.
What is the typical accuracy of HEDLAND mechanical flow meters?
HEDLAND mechanical flow meters are available with accuracy ratings of +/-2% or +/-5% of full scale, depending on the model. The H705B-005 series, for example, offers +/-2% accuracy, while many other models like the H620-028-R are rated at +/-5%. These accuracy levels are suitable for general industrial flow monitoring and control applications where high precision is not required.
Can HEDLAND flow meters be used with fluids other than water?
Yes, HEDLAND flow meters are designed for use with water, hydraulic oils, compressed air, and other gases. The seal material must be compatible with the fluid; Buna-N seals are standard for water and oil, while Viton seals are available for more aggressive fluids or higher temperature ranges. Always verify fluid compatibility with the manufacturer's specifications before installation.
What is the maximum operating pressure for HEDLAND inline flow meters?
HEDLAND inline flow meters are typically rated for maximum operating pressures up to 3000 psi (207 bar) for standard models, though this varies by specific product series and connection size. For example, the H620 series meters are rated for 3000 psi. Always consult the product datasheet for the exact pressure rating of the specific model you are considering.
Do HEDLAND flow meters require external power to operate?
No, HEDLAND mechanical flow meters are self-contained and operate without external power. They use a variable-area (rotameter) design where a float moves within a tapered tube in response to flow rate, providing a direct-reading scale display. This makes them suitable for remote or hazardous locations where electrical power is unavailable or undesirable.
What mounting orientations are supported by HEDLAND flow meters?
HEDLAND flow meters feature universal mounting orientation, meaning they can be installed in horizontal or vertical pipe runs without affecting measurement accuracy. This flexibility simplifies installation in existing piping systems. However, for optimal performance, the manufacturer recommends installing the meter in a vertical position with flow moving upward, as this ensures the float operates correctly.
Are HEDLAND flow meters available with remote output options?
Yes, certain HEDLAND models, such as the H615-625-R, include a remote output feature. This allows the flow meter to transmit flow data to a remote display, controller, or data acquisition system. The output type may be a pulse signal or analog signal, depending on the specific model. Check the product specifications for details on output type and compatibility.
