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4.5. Parameter protection
4.5.1. Protection ON/OFF
Description
Parameters can be protected so that the flow meter settings will not carelessly be changed.
Parameters can be protected by setting the "ID No." (Note) in the maintenance mode.
Note) ID number should be 4 digits. The factory setting is "0000". (Refer to Section 4.15.9.)
Settable range: PROTECTION ON : Parameter cannot be changed.
PROTECTION OFF : Parameter can be changed.
* 1 hour after “PROTECTION OFF” is set, “PROTECTION ON” is automatically set.
* The device starts in protection ON status.
For actual keying, refer to the typical operation indicated below.
Operation
(example)
Change the protection from ON to OFF (suppose ID No. is "2234").
Key operation
Description
Display
▼
Press the
key in the measurement mode once to indicate “PAR.
PROTECTION”.
PAR.PROTECTION
PROTECTION ON
ENT
▼
Press the
ENT
key once to blink the 2nd line.
PAR.PROTECTION
PROTECTION ON
▼
Press the
key once to display "PROTECTION OFF".
PAR.PROTECTION
PROTECTION OFF
PAR.PROTECTION
COMPLETE
↓
ENT
▼
▼
▼
▼
Press the
ENT
key once to display “PAR.PROTECTION”.
INPUT ID NO.
ENT
▼
▼
Press the
ENT
key once to indicate "0000" and blink the cursor.
Note) If ID No. is "0000" (as factory set), press the
ENT
key to release
the protection.
INPUT ID NO.
0
000
▼
Enter ID No. “2234” by the
key or the
key.
INPUT ID NO.
223
4
ENT
Press
the
ENT
key once.
* If ID No. does not coincide, "INPUT ERROR!" appears, and the input
screen is resumed.
INPUT ID NO.
COMPLETE
↓
―――
Protection canceled.
―――
PAR.PROTECTION
PROTECTION OFF
About the change of parameter setting
When you change parameters of converter in current use which analog output or alarm has been set, if you
change items which affect to the output or alarm, the output may change suddenly after display of
"**COMPLETE**" and may generate alarm. If, especially, the output signal is being used for control, perform the
signal lock on the system side prior to changing parameters.
Caution on change of parameter setting
When you change parameter settings, parameters will be saved in non-volatile memory on return to measuring
display. Saved parameters have been maintained even power is off. However, when you change the parameter
and turn off the power before returning to the measuring display, parameters will not be saved. Thus you should
set the parameter again.
CAUTION
Содержание Time Delta-C FSV-2
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