ultrasonic flow meter

Main Unit

Accuracy

Better than ±1%

Repeatability

Better than 0.2%

Principle

Transit-time measuring principle

Measurement

Period

500ms

Display

LCD with backlight, display accumulated flow/heat, instantaneous

flow/heat, velocity, time etc.

Output

Analogue 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

Input

Three analogue input

Three-wire PT100 resistor input

Other functions

Automatically 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

Pipe

Material

Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum

FRP etc. Liner is allowed

Size

15-6000mm

Straight pipe

section

In 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)

Liquid

Types

Water, sea water, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single uniform liquid

Temperature

Standard: -30˚C - 90˚C ，High-temperature：-30˚C - 160˚C

Turbidity

Less than 10000ppm, with a little bubble

Flow Direction

Bi-directional measuring, net flow/heat measuring

Environment

Temperature

Main Unit: -30˚C - 80˚C

Transducer: -40℃ -110℃, Temperature transducer: select on enquiry

Humidity

Main Unit: 85% RH

Transducer: water-immersible, water depth less than 3m

cable

Twisted 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 Supply

DC24V

Power

Consumption

Less than 1.5W

Protocols

MODBUS, other factory protocol