4. HowTo......................................................................................................................................23
4.1 Howtojudgeiftheinstrument worksproperly....................................................23
4.2 Howtojudgetheliquid flowing direction............................................................23
4.3 Howtochangebetween unitssystems..............................................................24
4.4 Howtoselect arequired flowrateunit...............................................................24
4.5 Howtousethetotalizer multiplier......................................................................24
4.6 Howtoopen or shut thetotalizers .....................................................................24
4.7 Howtoreset thetotalizers.................................................................................24
4.8 Howtorestoretheflowmeter with default setups..............................................24
4.9 Howtousethedamper.....................................................................................25
4.10 Howtousethezero-cutoff function..................................................................25
4.11 Howtosetupazeropoint................................................................................25
4.12 Howtogetascalefactorfor calibration...........................................................25
4.13 Howtousethesystemlocker..........................................................................26
4.14 Howtousebuilt-in datalogger........................................................................26
4.15 HowtousetheFrequencyOutput...................................................................27
4.16 Howtousethe Totalizer PulseOutput.............................................................27
4.18 Howtousethebuilt-in Buzzer.........................................................................29
4.19 HowtousetheOCToutput.............................................................................29
4.20 Howtomodify thebuilt-in calendar..................................................................29
4.21 HowtoviewtheDateTotalizers.......................................................................29
4.22 HowtousetheWorkingTimer.........................................................................30
4.23 Howtousethemanual totalizer.......................................................................30
4.24 Howtoknowhowlong thebatterywill last.......................................................30
4.25 HowtochecktheESN and other minor detail..................................................30
4.26 Howtoadjust theLCD display.........................................................................30
4.27 HowtouseRS232?........................................................................................30
5.Troubleshooting......................................................................................................................31
5.1 Power-on Error Displaysand Counter-Measures...............................................31
5.2 Error Codeand Counter-Measures....................................................................31
5.3 Other Problemsand Solutions...........................................................................32
6. Communication Protocol .....................................................................................................34
6. 1 General............................................................................................................34
6.2 InterfacePin-out Definition................................................................................34
