China Open Channel Flow Meter

open channel flow meter

Product Introduction
Ultrasonic open channel flow meter is a high accuracy flow instrument which is used the principle of ultrasonic measuring Venturi canal or Parshall flume. It measure the time of reflected back after sound wave contact to channel water , then according to the formula figure out channel flow, it can provide flow output, display flow velocity and total flow.

Application Area
1.Water and wastewater treatment: pump house, collecting well, biochemistry reaction tank, settling tank etc.
2.Power, mine, grout pool, coal slurry tank, butter storage tank, stock ground or Part of the mobile device control etc.
3.The food industry: winery, granary, food material fill the tank etc control system form a complete set using.

Performance index Function Characteristic
1.The built-in a variety of algorithms, suitable for all kinds of standard weir
2.Firm/stable's sensor suit for harsh industrial applications
3.4~20MA insulate current output, optional field bus interface.
4.Control relay output, alarm relay output.


Flow totalizer Parameters
1.Flow measuring range:0~93m3/s(And determine the range with the weir groove specification has relation)
2.The cumulative flow range:9999999999 Km3
3.Suit for weir tank type: triangular weir, rectangular weir, width weir, Parshall flume.
4.Display accuracy:as the input signal and set the flow error related with weir groove
5.Equipped with triangular weir:1~2% ;equipped with rectangular weir:1~4% ;equipped with parshall flume:3%
6.Calibration: leave the factory calibration, can field calibration.
7.indicator:2.8 English Chinese LCD
8.Display: the height of level, instantaneous flow, cumulative flow, hour flow, day flow, week flow, month flow , the date, the battery (Can be set arbitrarily)
9.Signal output:4~20mA;0~20mA;1~5V;0~5V;RS485;
10.Key:4 places tickle key
11.Voltage output:DC 12V or 24V
12.Signal output:RS485/RS232; 4~20mA;3 Channels relay
13. Relay contact capacity:AC:5A 120V DC:10A 24V
14.Working voltage:DC24V or AC160V~250V normal consumption:<5W

Physical Property
1.Main engine outline dimension:240x184x110MM
2.Casing material: ABS engineering plastic;energy conversion device:PP
3.Connection way:thread connection or screw fixed
4.Installation way:thread M48x1.5
5.Keyboard:five places paster type key
6.Sensor cable:10M(Optional of arbitrary length)

Environmental Performance
1.Working temperature:0~50ºC ambient humidity:≤85RH pressure:ordinary pressure

Data Storage
1.In the past 168 hours flow, in the past 31 days flow
2.In the past 14 weeks flow
3.In the past 36 months flow
4.In the past 10 years flow

Optional Equipment
1. Microwriter
2.12V storage battery
3.Lead wire:the most distant can be connected to 1000 meters, set by yourself.
4.Minimum display resolution:1MM
5.Temperature compensation:auto temperature compensation.
6.Working frequency:20 KHz~200KHz(the different is due to the different model)
7.Scence setting:pass by local key to finish it.
8. Calibration: leave the factory calibration, can field calibration
9.Display:3 cun chinese LCD
Support data acquisition

Warranty And Service
1. Warranty
The manufacturer provides one year warranty on all products, free of charge, but the users should be responsible for the one-way transportation fee from the customer to the factory.

2. Service
The manufacturer provides instrument installation for our customers, and the charges will be made according to the cost.
For any hardware failure of the instrument, we recommend that our customers send back the instrument to our factory for service, due to the fact that the instrument is made of microprocessors and it will be difficult to perform field maintenance. Before sending back the instrument, please try to contact the factory first to make sure what the problem is.
For other operational problems, please contact our service department by telephone, fax or email and internet. In most cases, the problem could be solved immediately.
Installation