HVAC SD بطاقة عداد المياه بالموجات فوق الصوتية مع RS485

Items

Performance & Parameter

      Host

Principle

Transit- time ultrasonic flowmeter

Accuracy

±1%

Display

2X20 character LCD with backlight, support the language of Chinese, English and Italy

Signal

Output

1 way 4~20mA output, electric resistance 0~ 1K, accuracy 0. 1%(optional)

1 way OCT pulse output(Pulse width 6~1000ms, default is 200ms)

1 way Relay output

Signal

Input

3 way 4~20mA input, accuracy 0. 1%, acquisition signal such as temperature, press and liquid level

Connect the temperature transducer Pt100, can finish the heat/energy measurement

Data

Interface

Insulate Rs485 serial interface, upgrade the flowmeter software by computer, support the MODBUS

Special Cable

Twisted-pair cable, generally, the length under 50 meters ; Select the RS485, transmission distance can over 1000m

Pipe

Installation

Condition

Pipe

Material

Steel, Stainless steel, Cast iron, Copper, Cement pipe, PVC, Aluminum, Glass steel product, liner is allowed

Pipe

Diameter

DN32~6000mm

Straight

Pipe

Transducer installation should be satisfied: upstream10D, downstream 5D, 30D from the pump

Measuring

Medium

Medium

water,sea water ,alcohol,Acid and alkali,waste water,beer,all kinds of oil Single liquid can transmit sound wave.

Temperature

-30~160℃

Turbidity

No more than 10000ppm and less bubble

Flowrate

0~±7m/s,Forward and backward measurement

Work environment

Protection grade

Host:IP67;flow sensor:IP68

temperature

Host:-20~60℃;flow sensor:-30~ 160℃

Humidity

Host: 85%RH; Flow sensor:can measure under water, water depth^2m (tansducer sealed glue)

Power Supply

DC8~36V or AC85~264V

Power

Consumption

1.5W

Dimension

132*150*85mm(host)