SenTec

FMU832 Wall Mounted Ultrasonic Flowmeter Heat Meter

FMU832 Wall Mounted Ultrasonic Flowmeter Heat Meter Clamp-on or tube-segment ultrasonic flow meters are based on the principle of “velocity difference method” to measure the liquid flow in a circular tube. It adopts advanced multi-pulse technology, signal digital processing technology and error correction technology, which makes the flow meter more suitable for the environment of the industrial site, and the measurement is more convenient, economical and accurate.

Ultrasonic flow meters are instruments that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or ultrasonic pulse).
Clamp-on or tube-segment ultrasonic flow meters are based on the principle of “velocity difference method” to measure the liquid flow in a circular tube. It adopts advanced multi-pulse technology, signal digital processing technology and error correction technology, which makes the flow meter more suitable for the environment of the industrial site, and the measurement is more convenient, economical and accurate. The products have reached the advanced level at home and abroad, and can be widely used in petroleum, chemical, metallurgy, electric power, water supply and drainage and other fields.

Parameters

Products nameUltrasonic flow meter/heat meter
Main unitAccuracyBetter than ±1%
RepeatabilityBetter than 0.2%
PrincipleTransit-time measuring principle
Measurement Period500ms
DisplayLCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc.
OutputAnalogue output: 4-20mA or 0-20mA current output. Impedance 0∼1kW. Accuracy 0.1%.
OCT output: Frequency signal (1~9999HZ)
Relay output: over 20 source signal (no signal, reverse flow etc.)
RS485 serial port
InputThree analogue input
Three-wire PT100 resistor input (optional)
Other functionsAutomatically record the totaliser data of the last 64 days / 64 months / 5 years;

The power-on time and corresponding flow rate of the last 64 power on and off events. Allow manual or automatic flow loss compensation

The instrument working status of the last 64 days

pipematerialSteel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP etc. Liner is allowed
Size15-6000mm
Straight pipe sectionIn the upstream it must be beyond 10D, in the downstream it must be beyond 5D, in the upstream the length must be beyond 30D from the access of the pump. (D stands for pipe diameter)
LiquidTypesWater, sea water, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single uniform liquid
TemperatureStandard: -30C – 90C ,High-temperature:-30C – 160C
TurbidityLess than 10000ppm, with a little bubble
Flow DirectionBi-directional measuring, net flow/heat measuring
EnvironmentTemperatureMain Unit: -30C – 80C
Transducer: -40C -110C, Temperature transducer: select on enquiry
HumidityMain Unit: 85% RH
Transducer: water-immersible, water depth less than 3m
CableTwisted Pair Line, standard length of 20m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable requirement.

RS-485 interface, transmission distance up to 1000m

Power SupplyAC220V or DC24V
Power ConsumptionLess than 1.5W
ProtocolsMODBUS, M-BUS, Fuji extended protocol and other factory protocol

Documents

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