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4.10. Zero Adjustment
Description
Zero point can be calibrated.
Settable range:
Channel designation : CH1, CH2, CH ALL
* When using 2-pipe measurement, calibrate both CH1 and CH2. CH1 and CH2 can be calibrated
simultaneously by selecting CH ALL.
* No channel setting is necessary for 1-path/energy measurement and 2-path measurement.
CLEAR
: Clears the zero point calibration value to "0".
Used in case the flow cannot be stopped when calibrating the zero point.
Note 1) Where possible, stop the flow and carry out "SET ZERO" stated below.
Otherwise, an error may occur in the zero point.
SET ZERO : A point where "SET ZERO" is carried out is regarded as zero. Used for zero calibration with flow stopped.
Note 2) The flow must completely be stopped.
Otherwise, the flowing status is regarded as zero, thereby causing an error.
It takes ten seconds to several tens of seconds to complete adjustment, depending on pipe diameter.
For actual keying, refer to the typical operation indicated below. Set the protection to OFF beforehand. (See Section 4.5.1.)
Operation
(example)
Completely fill the piping, close the upstream and downstream valves, and proceed to zero point calibration.
* Below is an example for 1-path/energy measurement and 2-path measurement. Refer to Section 4.8.1. for channel
designation of 2-pipe measurement.
Key operation
Description
Display
▼
Press the
key twice to display “OUTPUT SETUP”.
OUTPUT SETUP
ENT
▼
Press the
ENT
key twice to display “ZERO ADJUSTMENT” and blink the
cursor.
ZERO ADJUSTMENT
CLEAR
▼
Press the
key once, and select “SET ZERO”.
ZERO ADJUSTMENT
SET ZERO
Press the
ENT
key once to carry out “SET ZERO”.
* Be sure to completely stop the flow beforehand.
ZERO ADJUSTMENT
COMPLETE
↓
ENT
▼
▼
▼
▼
―――
Zero adjustment has been completed.
―――
ZERO ADJUSTMENT
SET ZERO
ESC
Press the
ESC
key once, and the
key for 3 times to enter the
measurement mode.
0.000 m/s
0.000 m3/h
Содержание Time Delta-C FSV-2
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