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4.15.2. Calibrating the analog output
Description
The calibration is performed so as to obtain 4mA and 20mA when the analog signal (4-20mA DC) output is 0% and 100%,
respectively.
Connect an ammeter to AO terminals as shown below. In the CURRENT CALIBRATION mode, select 4mA or 20mA, and operate the
key (UP) or the
key (Down).
Destination analog output: AO1: between Path 1 terminal board (15 to 16)
AO2: between Path 2 terminal board (25 to 26)
+
-
Ammeter
19
20
GND HF2
18
HF1
17
GND
16
15
-
+
29
30
GND HF2
28
HF1
27
GND
26
25
-
+
Path 1
Path 2
For actual keying, refer to the typical operation indicated below. Set the protection to OFF beforehand. (See Section 4.5.1.)
Operation
(example)
Adjust the 4mA and 20mA analog outputs.
Key operation
Description
Display
▼
Press the
key for 4 times to display “MAINTENANCE MODE”.
MAINTENANCE MODE
ENT
▼
Press the
ENT
key once to display “RAS INFORMATION”.
RAS INFORMATION
▼
Press the
key once to display “AO1 CURRENT”.
When selecting “AO2 CURRENT”, press the
key twice.
AO1 CURRENT
CARIBRATION
ENT
▼
Press the
ENT
key twice to enter the calibration mode of 4mA output.
Adjust the output to 4mA by the
(UP) and the
(down) key, while
observing the output of calibration devices such as an ammeter.
AO1 CARIBRATION
4 mA
Press the
ENT
key once to register the adjustment result.
AO1 CARIBRATION
COMPLETE
↓
ENT
▼
▼
▼
▼
―――
4mA adjustment result has been registered.
―――
AO1 CARIBRATION
4 mA
▼
Press the
key once, and select 20mA.
AO1 CARIBRATION
20mA
ENT
▼
Press the
ENT
key twice to enter the calibration mode of 20mA output.
Adjust the output to 20mA by the
(UP) and the
(down) key.
AO1 CARIBRATION
20mA
Press the
ENT
key once to register the adjustment result.
AO1 CARIBRATION
COMPLETE
↓
ENT
▼
▼
▼
▼
―――
20mA adjustment result has been completed.
―――
AO1 CARIBRATION
20mA
ESC
Press the
ESC
key twice and then press the
key once to enter the
measurement mode.
0.000 %
0.000 m3
Содержание Time Delta-C FSV-2
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