Features 

 A quality alloy turbine, with a more steady flow and corrosion-resistant 

 (2) the import of high-quality bearings, long life 

 Measuring chamber and the ventilation room isolation, to ensure the security of the instrument 

 4 wide flow range (Qmax / Qmin, ≥ 20:1), good repeatability, high accuracy (up to 1.0), pressure loss, low starting flow rate up to 0.6m3 / h 
 Line standard 
 Gas flow measurement in closed pipe - gas turbine flowmeter (GB/T8940-2003) 

 Meter-diameter (mm) and connection 
 25,40,50,65,80,100,125,150,200,250,300 using flange connection 

 25,40,50 can be threaded connection 

 Accuracy class 
 ± 1.5% R (± 1% R require special customization) 

 Turndown ratio 
 1:10; 1:20; 1:30 

 Instrument material 
 304 stainless steel impeller resistant ABS or high quality aluminum alloy converter: cast aluminum 

 Conditions of Use 
 Medium temperature: -20 ~ +80 ° C ambient temperature: -30 to +60 ° C 

 Relative humidity: 5% ~ 90% Atmospheric pressure: THE STANDARD RANGE OF ~ 106Kpa 

 Working power 
 A. The external power supply: +24 VDC, ± 15%, and ripple ≤ ± 15% applies to 4-20mA output, pulse output, RS485, etc. 

 B. Power: 1 the group 3.0V10AH lithium battery, the battery voltage is 2.0V ~ 3.0V can work properly. Undervoltage indication when the voltage is lower than 2.0. 

 Power Consumption 
 A. Outside power: <1W B. The inside power: average power consumption ≤ 1W can be used continuously for more than three years. 

 Signal output function 
 Pulse signal 4-20mA current signal control signal 

 Communication output function 
 RS485 communication 

 Real-time recording function 
 Start and stop record, daily record, a given time interval records 

 Signal line interface 
 Internal thread M20 × 1.5 or other 

 Explosion levels 
 EXdIIBT6 or EXiaIICT4 

 Degree of protection 
 IP65 Company Name: Henan Airlines Traffic Instrument Co., Ltd. 
 Address: Grace Avenue, Xinxiang City, Henan Province, the western part of high-Bay northbound 
 Tel: 0373-2678088 0373-2677766 
 Fax: 0373-2678899 
 Contact: Yang Yang 
 Phone: 13673735363 
 Post Code: 453 003 
 E-mail: hnxhyb@163.com 
 Website: http://www.hnxhyb.com.cn 
 Business QQ: 1596920346 




 With explosion-proof protection, proof mark Exd Ⅱ BT6, Exia Ⅱ CT6, with IP65 

 Intelligent instrument coefficient of nonlinear correction 

 6 low-power operation of the system, a 3.6V battery can be used continuously for more than 3 years