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MF4700UserManual
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Responsetime 0x0017
Write Y
Read Y
Description Meterresponseordatasamplingtime
Valuetype UINT16
Notes
Thedefaultvalueis10(10msec).Optionsare10,20,50,100,and200msec.
Itisrecommendedthatwriteprotectionshouldbeappliedafterthisvalue
ischanged.
Highflowalarm 0x0031~0x0032
Write Y
Read Y
Description Setthehighflowratealarmlimit
Valuetype UINT16
Notes Thesetflowratevalue=[value(0x0031)*65536+value(0x0032)]/1000
Lowflowalarm 0x0033~0x0034
Write Y
Read Y
Description Setthelowflowratealarmlimit
Valuetype UNIT16
Notes Thesetflowratevalue=[value(0x0033)*65536+value(0x0034)]/1000
Offsetreset 0x0027
Write Y
Read N
Description Resetorcalibratetheoffset
Valuetype UINT16,fixedvalue0xAA55
Notes
Sendthefixedvalue0xAA55toregister0x0027.
Pleasemakesurethereisnoflowbeforeexecutingthiscommand.
Writeprotection 0x0014
Write Y
Read N
Description Writeprotectionofaspecificvalue
Valuetype UINT16,afixedvalueofoxAA55
Notes
Thisfunctiondisablesthewrite‐protectedregisterandallowsyoutomodify
thecorrespondingregister’svalue.Forexample,tochangethegasconversion
factor,theuserneedstosend0xAA55totheregister0x0016,andthenthe
writefunctionwillbeenabled(writeprotectionisdisabled).Afterthewrite
execution
iscompleted,thefirmwarewillautomaticallyre‐enablethewrite
protection.