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MF4700UserManual
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Table5.1:On‐screencharactersandtheircorrespondingfunctions
On‐screencharacter Symbol Functions
0.unL/Loc Unlock/lockthekeyboard
1.oFF/on Resettheaccumulatedflow
2.oFF/on Resetorcalibratetheoffset
3.1…255
SettheModbusaddress
Available:1~255,
Defaultaddressis1.
4.1/2/5/10/
20/50/100
Settheresponsetime
5.25/50/100/
200
Setthedisplayrefreshrate
6.0…110
Settheupperflowratealarm
Available:0~110,meansof0%~110%
fullscale.
Defaultvalueis100,meansof100%full
scale.
7.0…110
Setthelowerflowratealarm
Available:0~110,meansof0%~110%
fullscale.
Defaultvalueis0,meansof0%fullscale.
8.0/1/2/3 Setthedisplaydecimal
9.48/96/192/384
Setthecommunicationbaudrate
Available:48,96,192,384,meansofbaud
rate4800,9600,19200,38400.
Defaultvalueis384,meansofbaudrate
38400.
A.10…999
SettheGCF(gasconversionfactor)
Available:10~999,meansofGCF=100~
9990.
Defaultvalueis100,meansofGCF=1000.
b.0/1
Settheaccumulatedflowrateunit.
sccorSL(instantflowrateunitis
sccm);
SLorNm
3
(instantflowrateunitis
SLPM).
Note:Duringthisprocess,themeterwillcontinuetomeasuretheflowwithoutbeinginterrupted.