Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual de usuario descargar pdf (Pagina 161)

<13. COMMISSIONING OF DO (Dissolved Oxygen)>

13-10

IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00

13.6.3 Passwords

Calibration and commissioning operations can be separately protected by each password. To

protectexecuteoperations,enterapasswordinExecute’sinputeld.Toprotectcommissioning

operations,enterapasswordinCommissioning’sinputeld.Bydefault,bothinputeldsare

empty.Whenapasswordinputeldisempty,operationisnotpassword-protected.Apassword

can contain up to 8 characters.

When you set a password, always take a note of it.

When a password is set, input of the password is necessary to enter the password-protected

operation.Afterinputtingthepassword,thedisplaywillchangetoanoperatorIDinputdisplay.

WhenanoperatorIDisinput,itsoperationisrecordedintoalogbook.TheinputofanoperatorID

isnotnecessarytoentertheoperation.AnoperatorIDcancontainupto4characters.

13.6.4 Date/Time

The Logbooks and trend graphs use the clock/calendar as a reference. The current date and

time is set here. The time display format can be selected from among three types.

13.6.5 Communication

In“Communication,”selectthecommunicationsettingfromamongNone,HART,andPH201G.

The burn down current value is 3.6 mA.

NOTE

To make the change of “Communication” valid, turn off the power supply once, and reboot.

Inthecaseof“None,”thereisnottheproblemevenifyoudonotchangeitas“HART”ofdefault

value.

n HART

Select this menu when HART communication is made.

IntheHARTsetupscreen,specifythenetworkaddressandsetupparametersforSV,TV,and

FV.

(PVislinkedwiththe“processparameter”settingin“Outputsettings”andcannotbechanged

here.)

l Network address

For1-to-1communication,leavethedefaultvalue[0]unchanged.Formulti-dropwheremultiple

HART devices are connected on a bus, set addresses in 1 to 15. In this case, the mA output will

bexedto4mA.

l PV

PVisaparameterselectedforanalogoutput;itcannotbechangedhere.

l SV, TV, FV

TheSV,TV,andFVparametersareitemsthattheusermustsetup.Selectableitemsdiffer

depending on the sensor type in “Sensor setup” and settings in “Measurement setup.”

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Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual de usuario Pagina 161