Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual de usuario descargar pdf (Pagina 169)

<14. CALIBRATION OF DO (Dissolved Oxygen)>

14-4

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

14.5 HOLD

The FLXA21 has a function to hold the mA output at a preset value (default: “Last”).

Usethismenutoholdtheoutput.

For the settings, see “nCongureHold”onpage13-7.

Duringcommissioningorquicksetup,theoutputisautomaticallyheld.

Setting“HoldduringCalibration/Wash”to“Disabled”deactivatestheholdfunctionduring

calibration or washing.

Press

toselectExecute:HOLDandthenchooseManualHoldONorManualHoldOFF.

This allows you to set up manual hold.

10.38

Tag:FLXA21–DO

25.0

4mA 20mAOxygen1

°C

mg/L

HOLD

Figure 14.6 Example of the display with the manual hold enabled

To cancel manual hold, press the lit

HOLD

section on the Main display.

14.6 Temporary output

If measurement cannot be made due to replacement of one of the sensors, assignment of mA

output can be temporarily changed from the currently setup sensor to the other sensor. This

feature is enabled only when two sensors are connected.

Press

toselectExecute:Temporaryoutputandthenchoosetheprocessparametertobe

assigned on the Temporary output screen.

Whenprocessparameterassignmenthasbeenmodied,the

indication at the upper left of the

screen changes to .

The feature is disabled the moment the screen returns to the Main display, and the setting

(process parameter in mA output setting) returns to the original condition.

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Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual de usuario Pagina 169