ASAIR AFM0725 Instruction Manual Download Page 11

parameter  settings

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/

quit

AFM0725

19200,  115200  four  baud  rates  can  be  selected)

Alarm  function  on  or  off

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certificate

Level  1  menu  Level  2  menu  Level  3  menu

Flow  reset

Set  the  lower  limit  of  flow,  when  the  alarm  function  is  turned  on,  the  flow  is  lower  than  the  flow

Communication  settings

1

/

Reserved,  the  default  is  Chinese

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name

Set  the  baud  rate  of  the  transmitted  data  (4800,  9600,

Alarm  switch

Product  Manual

View  the  model,  range,  version,  and  SN  code  of  the  device

Table  9.  Function  introduction

language  settings

quit

/

system  settings

/

1  set

Back  to  one  level  menu

Device  Information

Select  the  type  of  gas  to  be  tested

packing  list

Alarm  system

Back  to  one  level  menu

/

/

quit

AFM0725  pinout

Factory  reset  the  product

/

Back  to  secondary  menu

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Upper  limit  alarm

Accumulated  flow  value  reset  to  zero

Function

Restore  Factory

Select  the  communication  address  of  485  (1-32)

Traffic  cap

quit

1  piece

Lower  flow  limit

Back  to  one  level  menu

www.aosong.com

quit

Set  the  upper  limit  of  the  flow  rate,  when  the  alarm  function  is  turned  on,  the  flow  rate  is  higher  than  the  flow  rate

/

baud  rate

quantity

back  to  main  interface

flow  rate  unit

485  address

Lower  limit  value  alarm

1  serving

/

Fluid  selection

Unit  switching  between  L/min  and  CFM

July  2022

11 /  12

(Available  for  AIR,  N2,  Ar,  CO2,  He,  O2  gases)

6.  Packing  List

Summary of Contents for AFM0725

Page 1: ...and explosive gases It has been widely used in university scientific research fire protection environmental monitoring tobacco smart agriculture food medicine and other industries The range accuracy...

Page 2: ...n address of the flowmeter gas temperature cumulative flow and instantaneous flow The buttons include up down and set buttons and the LCD lights 1 and 2 are the upper limit warning light and the lower...

Page 3: ...ine GND External output 2 black line External output 1 Figure 3 Schematic diagram of device 8Pin female socket RS485B RS485A power cable GND 5 green line RS485A 7 pin 3 Table 2 Pinout Definitions brow...

Page 4: ...Shell material describe pinout Repeatability 50ms PBT precision RS485 NPN open collector output 1 5V linear voltage output Air 25 C 1 standard atmosphere 0 85W typ Pressure Standard Calibration param...

Page 5: ...display face July 2022 down 1 For the piping of the product inlet outlet please reserve a straight pipe part with a length of more than 12cm and the inner diameter of the straight pipe is less than 4...

Page 6: ...efinition of AFM0725 is shown in Table 5 The digital output communication mode of AFM0725 gas mass flowmeter is RS485 communication and the communication parameters are shown in Table 4 4 Product Comm...

Page 7: ...03 06 0 No alarm for lower limit address 1 6 4 Carbon dioxide CO2 0 L min 10 0x003B Read and write 03 06 1 10 baud rate model 10 03 L min 0x0035 03 10 03 0x00Fa 1 flow unit 1 Upper limit alarm 0 65535...

Page 8: ...slave address Register 0x0000 stores the instantaneous flow value Received data bytes Table 8 Format Table for Host Send Write Register Command CRC code is used for verification 03 read multiplex regi...

Page 9: ...L min the NPN open collector output port corresponding to external output 1 is closed closed alarm www aosong com The C language code for calculating the CRC code is as follows AFM0725 has 2 NPN open...

Page 10: ...e and press the up and down keys to select the parameters to be set If there is no operation within 30 seconds the system enters the lock screen state When the alarm switch status icon in Figure 7 is...

Page 11: ...one level menu Device Information Select the type of gas to be tested packing list Alarm system Back to one level menu quit AFM0725 pinout Factory reset the product Back to secondary menu Upper limit...

Page 12: ...Failure to follow the recommendations could result in death or serious personal injury The company will not The technical specifications are indicated in the product manual of Aosong Electronics If t...

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