Brief introduction
ACF-1-XX wireless integrated intelligent wedge flow meter is of simple structure, no moving parts, stable and reliable in long-term use, high precision. High standardization degree, good linear, does not need solid flow calibration. Orifice meter use agile and convenient; differential pressure flow meter is still used widely in domestic flow meters currently, according to estimates of relevant data: the consumption of dp flow meter is 75% - 85% of the total consumption. It is widely used in the steam boiler, petroleum, chemical, steel, electric power, water conservancy, papermaking, pharmaceutical, food and chemical industries, etc.
 

Measure theory
When fluid filled with pipe flow through the orifice, the flow will form local contraction at the throttling area of the orifice to accelerate the flow and reduce the static pressure, then there will be pressure drop also called differential pressure before and after the standard orifice. The bigger of the medium flow rate, the bigger of the differential pressure, so we can measure the flow rate by measuring the differential pressure. This measuring method is on the theory of law of conservation of mass and law of conservation of energy. 
Products patents:
Utility Model Patent Certificate:
①ZL2008 2 0028605.1  《digital instrument button and display device》
②ZL 2012 2 0299081.6 《wireless integrated static and differential pressure detect device》
③ZL2009 2 0062360.9  《micro power consumption and low pressure drop sensor constant current drive circuit》
④ZL 2011 2 0549792.X 《wireless integrated multi-parameter differential pressure flow meter》
⑤ZL 2013 2 0529448.3 《wireless integrated multi-parameter differential pressure flow instrument gauge》
Patent for industrial design:
⑥ZL 2013 3 0412222.0  《instrument gauge》
Features
- particularly suitable to measure high viscosity, low Reynolds number, suspended particles or bubbles medium;
- measurement precision is not affected or restricted by fluid medium dielectric constant;
- wedge structure design is special, which has guide effect, prevent blockage with self-cleaning ability, without stagnant area;
- has compensation function of fluid viscosity, temperature, density changes and so on;
- vibration resistance, impact resistance, dirt resistance, corrosion resistance;
- wedge meter has simple structure, strong, high reliability, convenient installation and low operation maintenance cost;
- no moving parts, no wear, no need to calibration during long time use, permanent pressure loss is smaller than orifice plate;
- high and low temperature resistance, resistance to high pressure, measurable for gas, liquid and steam, wide applicable scope;
- show the cumulative flow and transient flow, pressure, temperature at the same time;
Technique Data:
Nominal Diameter: DN20～DN1000
Dominal Pressure: （0～32）MPa
Medium Temperature: （-50～700）℃
System Accuracy: 0.5/1/1.5/2/3
Max Range to Min Range: 25:1
Straight Pipe: 3DN in front and 2DN behind
Connection Type: Flange clamping type/Pipe welding type
Operating Temperature: -30℃～70℃
Power Supply Mode: build-in 3.6V lithium battery or 7~30VDC
Output Signal: 4-20mA DC or RS485
Protection Degree: IP65
Exdl: ExdllCT6
Wireless technique:
1. Wireless spectrum: ISM（2.4~2.5）GHz（IEEE 802.15.4 DSSS）
2.  Wireless authentication:   a. Zigbee：FCC ID: MCQ-XBS2C，IC: 1846A-XBS2C
　　                            b. WirelessHART：IEC 62591 HART，GB/T 29910.1～6-2013  HART
3.  Wireless protocol: a. Zigbee：Zigbee 2007
                      b. WirelessHART：IEC62591
4.   Receive sensitivity: a. ZigBee：-100dBm
                      b. WirelessHART：-95dBm
5.   Transmit power: 8dBm（6.3mW）
6.   Transmission distance: 300m 800m
7.   Network security: AES-128 encryption algorithm, the network authentication and authorization
8.   Immunity ability:  automatic frequency hopping technology
Dimension:
Selection mode: