Calibration, 9<1 cnlibration items, Important – Toshiba LF434 User Manual
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TOSHIBA
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9. Calibration
9<1 Cnlibration Items
You can conducl the following in the calibration mode:
• CJhecks or calibrates the zero and span of the Ь'4Ь4 converter
b y
using a simulation signal,
• Checks of the excitation ctirrenl.
To change the mode to the calibratiua mode, see 7.3,1, ‘*Mode Change.'"
IMPORTANT
To chock or change the zero and span of ihe converter, follow the procedure de.scribcd
below. However, these are already checked and calibrated when shipped from the
factory. Do not change these settings unless it is necessary to calibrate in the field.
Calibration items are listed below. See each section for detailed procedure.
Section
Confiau ration item
Display example
Page
9.2.1
0
%
How rale calibraiion
Nl:FLOWCAL 0%
0.0 %
104
9.2.2
50 % flow' rate calibration
N2:FLOW
50.0 %
1U5
9,2.3
100
%
flow rate calibration
N3:FLOW CALI00%
10Ü.0
%
106
9.2.4
Excitation current
N4:EX. CURR.DSP.
0.2100 A
107
-
103
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