Download Files

Series DMTFW-E energy meter brochure.pdf
Data Logger System.rar

HELP

•Downloads(ALL)
•Contact us
DMTFW-E
ULTRASONIC ENERGY METER (FOR ABOVE DN50)
Series DMTFW-E ultrasonic energy meters utilize newest digital transit-time processing technology, with compact shape featuring longevity, good stability and high accuracy for all-electronic industrial environment.  The meters are cost-effective, service-friendly, of simple design and extremely robust. Its new free-flow jet principle provides an extremely high measuring accuracy.
Features£º
¡ôWith compact, solid shape, suitable for bad environment conditions
¡ôNo moving parts, no pressure loss or abrasion
¡ôHeat flow function
¡ôLow start-up flow rate£¬minimum measurable flow velocity 0.003m/s
¡ôSelf-adapting ultrasonic receiving circuit, work stably in bad pipe condition
¡ôQuick transient response, can trace the flow rate change within seconds
¡ôWith Infrared meter reading function
¡ôBattery power supply£¬can work constantly for 6 years
¡ôUnique housing design, can work underwater
¡ôFlange is made by mold to remove possibility of leakage
¡ôWith self-diagnosing function and fault indicator
Items
Technical parameters
LCD display
Automatic circulative display the total flow, flow rate and velocity, heat flow rate and total heat flow
Viewing mode
overlook
Positive, negative flow
With positive and negative bi-directional flow totalizer function
Input
Pairs of Pt 500 temperature sensors with 2-wire leads
Output
4¡«20mA output (Optional)
pulse pile-up output
Data interface(Optional)
RS232 output¡¢RS485¡¢M-Bus¡¢Infrared data reading
Data logger
Can store the historic data for 18-35 months (such as monthly totalizer, working time, ect.). Data can be automatically saved when power supply is cut-off.
Power Supply
High power lithium battery£¨lifetime more than 6 years£©, 9¡«30VDC power supply, current loop, M-Bus, power borrow via RS232 Serial port
Accuracy
0.1 C
Velocity range
0.01¡«32.00m/s
Temperature of surroundings
-25¡æ¡«75¡æ£¨indicator suited£©
temperature of measured fluid
-20¡æ¡«150¡æ
the range of dimensions
DN50¡«DN1000mm£¨The length is the same with Spiral Blade Water Meter £©
rated pressure
0.6-16MPa
protection class
IP68£¬ submersible
Main advantages:
¡ôHigh measurements precision: 0.1 C.
¡ôHigh operational reliability and minimum maintenance requirements
¡ôCompared to mechanical meters, very low hydraulic losses
¡ôEasy data reading, storage and evaluation/processing
¡ôIdentification of leaks in water distribution systems
¡ôMeasured data can be transferred to remote control stations
Applications£º
¡ôstatic compact energy meter using ultrasonic technology
¡ôHighly accurate recording of all billing data in local and district heating and cooling systems.
¡ôProcess control and instrumentation.
¡ôSubstituting mechanical heat flow meters with high measuring reliability.
¡ôTechnological measurements of instantaneous flow rate and consumption in water-supply networks.