Siargo MF4700 Series User Manual

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MF4700UserManual
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5.4.3.Detaileddescriptionsofthefunctions
0) Keyboardsecurity
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Thisfunctionallowstheusertodisablethekeyboardentryafterthemeterissetasdesired.It
willpreventanyaccidentalkeyentrythatmayalterthesettings.AttheMENU,select“lock”
tolockthekeyboard.
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1) Resetthe
accumulatedflowrate
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(a) When instant flow rate is sccm, the maximum accumulated flow rate that can be
registeredbythemeteris9,999,999.9sccor999,999.99SL.(b)Wheninstantflowrateis
SLPM, the maximum accumulated flow rate that can be registered by the meter is
9,999,999.9SL
or999,999.99Nm3.Oncethevalue is reached,theaccumulatingfunction
willstopprocessingthedata.Itisnecessarytoresettheregisterforthecontinuationofthis
function.
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Usethisfunctionwithcautionasitwilldeleteallcurrentaccumulatedflowratedata.
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2) Resetorcalibratetheoffset
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Sometimesoraftera longtimeofuse(i.e.,over 1yearof usage),thesensor surfacecould
haveathindeposit fromtheenvironmentifthegas isnotsuperclean. Dependingonthe
actualcase,thisdepositmightormightslightlychangethethermalsensitivityofthesensor
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resultinginadriftoftheoffsetoratinyflowatthezeroflowinthepipeline.Usethisfunction
to reset the offset will not have an impact on the meter performance if such an offset is
outsideofthe100:1calibratedrange.
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Usethisfunctionwithcaution
andmakesurethereisnoflowwhenexecutingthis
function,otherwise,itmayincursomeadditionalerrorstothemeasurement.
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3) SettheModbusaddressofthemeter
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Usethis function to set the RS485Modbusaddressof the meter.Thissetting can alsobe
doneviathe
RS485communication.
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4) Settheresponsetime
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Use this function to change the response time of the meter.The default one is 10 msec.
Increasingtheresponsetimewillallowmoredataaverageandoutputastablerflow rateif
theactualflowratemayhavesomeundesiredfluctuation.

Siargo MF4700 Series Specifications

General

Brand	Siargo
Model	MF4700 Series
Category	Measuring Instruments
Language	English