Toshiba LF494 - Manual (Page 103)

TOSHIBA
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9.2
Calibration Using Converter SignaJ Source
9.2-1 0 % Flow Rate Calibration
■ To check the zero point of flow measurement:
Key operation Display example Description
□ N1;FL0H CAL OX
0
.
0
%
Press [SET] first to start the items selection scquertcc
and select N1: FLOW CAL 0% from among the
configuration items using [ ► ] and [ A ] keys, 'fheii
press [SET] again to go into the calibration mode
and calcuiaie and display zero point using a
simulation signal,
SET
□ N1:FL0W CAL
Q% Pressing [SET], the system re turns to the items
selection sequence.
To change the zero and span of the converter:
Key operation Display example Description
SET
□
N l : F L 0 i C A L O X
0
.
1
%
Press [SET] first to start the items selection sequence
and select N1: FLOW CAI.0% from among the
setting items using [ ► J and [
a ] keys. Then press
[SET] again to go into the calibration mode and
calculate and display zero point using a simulation
signal.
□ ADJUST READY
0
.
1
%
Pressing [ ► ], “ADJUST READY’" appears as
shown left and Ihe system goes into a calibration
ready condition. (Note 1)
N1:FL0Vr CAL OX
* CAL OX ADJ.
Pressing [SET], “*CALt)% ADJ.” appears as shown
left and the sy.siem starts the zero calibration. The
zero calibration takes about 3 to
6
seconds. (Note 2)
SET
□
N1:FLDi CAL OX
0
.
0
%
Xcw ly calibrated zero point appears.
SET
□ N l i F L O M C A L O X Pressing [SET], the system returns to the items
selection sequence.
Notes;
l*To cancel iicro c<tJibration, press [ a ], The system returns to the point where the zero point
display appears,
2,Calibration time depends on the cxcilation iroquoncy
(24 Uz:
3 sec, 12 IIz and
6
IIz;
6
sec).
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