K3TJ
K3TJ
10
3. Scaling Adjustment
The K3TJ is factory-set to display 0 to 1,000 for the minimum and maximum input range value. By setting the scaling, the K3TJ can be scaled
within a range of 0 to 9,999 or 0 to --1,999.
Display after scaling
Input
4 mA or 1 V
4- to 20-mA or 1- to 5-V range
Display after scaling
Input
0- to 5-V or 0- to 10-V range
1000
1000 x a
1000 x a
1000
0
0
Example: When adjusting the factory set value
800
to a scaling value of
1200
Adjust the scaling while applying an actual input.
Use the Up or Down Key to change the display. To
change the value to
1200
, use the Up Key. The displayed
value will increase automatically if the Up Key is pressed
for 1 s or more and will decrease automatically if the
Down Key is pressed for 1 s or more.
Up Key or
Down Key
800
1
3
4
5
6
7
8
2
OFF
ON
1200
Set parameter selector pin 3 to ON, at which time the
display will not change but a scaling adjustment will be
possible.
After
1200
is displayed, set parameter selector pin 3 to
OFF to complete the scaling adjustment
The scaling has been changed.
1
3
4
5
6
7
8
2
OFF
ON
Display
Scaling
adjustment
Input
1200
800
0
Display Shift Setting and Scaling Operation
In the following example, 4 to 20 mA is scaled to be 100 to 1,000.
Display
Factory set
Shift ad-
justment
4 mA is input
Input
Display
Span adjustment
Input
20 mA is input
0
100
1000
1100
20 mA
0
100
1000
1100
4mA
1. Shift Adjustment
2. Scaling Adjustment
Note:
1. At the time of scaling adjustment, the starting point for changing the inclination of the straight line will be the minimum value of the
input range. Therefore, when using only a part of the input range, repeat shifting and scaling adjustments several times.
2. Turn the K3TJ off and on while pressing both the Up and Down Keys so that the K3TJ’s shifting and scaling settings will return to the
ones preset before shipping.