<1>Outline
Smith2013 type helix rotor flow meter (also called double rotor flow meter):It is made up of the shell and a special rotor and transmission components mainly.It is using in the pipeline for continuous or intermittent liquid flow measurement and control instrumentation. It has the advantages of wide range , excellent accuracy, small pressure loss, strong viscosity adaptability, smooth functioning of no pulse, and simple installation,ect.It is applied to crude oil, petroleum products, chemicals, chemical fiber, traffic, commerce, food, health and medical, research, and the measurement of fluid in the MIC. SMITH2013 double rotor flow meter can display the cumulative flow, instantaneous flow, a single flow in the field, and it can also output pulse signal, 4--20mA or 1--5 V analog signals, 4--20mA + HART, MODBUS, support RS232, 485 and other communications. Combinated with Smith mechanical or electronic batch controller,it can realize for different types of filling, control, and other functions approved.

<2>Technology Indicators
Accuracy :                 0.1、0.2 、0.5
Allow basic error:         ± 0.1、 ± 0.2、±0.5
Nominal Diameter DN (mm):  15 ~ 400
Nominal Pressure PN (MPa): Stainless steel 1.0、 1.6、 2.5、4.0                  
                           Carbon Steel 2.5,4.0, 6.3, 9.6
Measured liquid temperature:  Low  Temp.   -40℃~+60℃          
                                                       Normal  temperature -30℃ ~ +80℃                                                          

                                                      Medium  Temp. +60 ℃ ~ + 200℃   
                                                       High  temperature +100 ℃ ~ +300 ℃
Measured liquid viscosity (mPa.s): 0.3 ~ 50000
Pipeline Connection:       GB911.6-889 (China flange); NPT (the United States pushed and  pulled pipe thread);       BSPT (British Standard Pipe Thread)
Field  Show:             99999999 (cumulative flow)  
                         9999999.9  (single flow)
                         9999999.9  (instantaneous flow)
Output  signal:         pulse signals、 4 ~20mA、 1-5V、4 ~ 20mA +HART protocol、                                    MODBUS support RS232 、RS485 communications (optional)
Ex.  Level:              ExdIIBT5 ExiaIICT5
Protection  Level:        IP65 、IP67
Electrical  Interface:   1 /2" 、 1 / 2" (NPT)