Toshiba LF434 - Manual (Page 107)

TOSHIBA
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9.2*3 lOfl % Flow Rate (Span) Calibration
Using the convener’s internal caUbniion circuit, the system can calibrate the 100% flow
rale [joint (hereafter called span).
To check tlie span of the converter:
Key operation Display example Description
SLT
□
N3:FLQW CAL100X
100. 1 %
Press [SET] first to start the iteniij selection sequence
and select N3: FLOW CAL 100% from ainong tJic
configuration itcm.s using [ ► ] and [
a ] keys. Then
press [SET] again to go into the calibration mode
and calculate and display the span using a simulation
signal.
SET
□ N3:FL0W CAUOOli
Pressing [SET], Ihc system returns to the items
selection sequence.
To change the span of the converter:
Key Operation Display example De.^cription
SET
□ N3:FL0N U i m %
100. 1 %
Press [SET] first to start the items selection
sequence and select N3: FLOW CAL100% from
among the configuration items using [ ] and
[ A ] keys. Then press [SET] again to go into the
calibration mode and calculate and display 1011%
iTow rate point usine a simulation signal.
►
□
ADJUST READY
100* 1 %
Pressing [ k 1,'^ADJUST R^:A.Dr^ appears as
shown left and the system goes into a calibration
readv condition. (Note 1)
N3:FLQVI CALI00$
* CAL. 100$ ADJ.
Pressing [SET]* CAL-100% ADJ/' appears as
shown left and the system starts the 100%
calibration. The zero calibratiojt takes about 3 to
6 seconds. (Note 2)
Sf-:i’
□
N3:FL0M CAL1Q0$
100*0 %
Newly calibrated 11)0% How ratepoini appears.
SET
□
N3:FL0W CALICOS
Pressing [SET]j the system returns to the items
i^election sequence.
Notes:
1. To cancel the span calibration* press [ a . ]/i’he system returns to Ihc point where 100%
How rate is displayed
2. Gdibiatton time depends on the cxcitaiion frequency (24 Hz; 3 sec, 12H2 and 6Hz; 6 see).
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