<5.
Operation
>
5-4
IM 21B03D01-01E
<Example: For 20 to 100 kPa output signal at 4
to 20 mA input signal>
Calibrate the input and output signals with
reference to Table 5.6 Accuracy should be within
±0.5% of span.
Table 5.6
Input and Output Signals
Input Signal
Output Signal
0%
4 mA
20 kPa
25%
8 mA
40 kPa
50%
12 mA
60 kPa
75%
16 mA
80 kPa
100%
20 mA
100 kPa
5.4 Range Adjustment
Perform the following to change to an output signal
other than those specified in Table 5.4 “Output
Signals.”
Zero point adjustable range is ±10% of span and
the span adjustable range is from 100 to 125%.
An output signal can be flexibly regulated within
these ranges using the zero and span adjustments.
Table 5.7
Zero and Span Adjustable Ranges
Output
Signal Code
Zero Adjustable
Range
Span Adjustable
Range
1
12 to 28 kPa
80 to 100 kPa
2
*1
24 to 56 kPa
160 to 200 kPa
3
0.12 to 0.28 kgf/cm
2
0.8 to 1.0 kgf/cm
2
4
*2
0.24 to 0.56 kgf/cm
2
1.6 to 2.0 kgf/cm
2
5
0.12 to 0.28 bar
0.8 to 1.0 bar
6
*3
0.24 to 0.56 bar
1.6 to 2.0 bar
7
1.8 to 4.2 psi
12 to 15 psi
8
*4
3.6 to 8.4 psi
24 to 30 psi
9
*5
0.6 to 5.4 psi
24 to 30 psi
*1:
Please set the supply air pressure at the maximum
working pressure plus 30 to 60kPa.
*2:
Please set the supply air pressure at the maximum
working pressure plus 0.3 to 0.6kgf/cm
2
.
*3:
Please set the supply air pressure at the maximum
working pressure plus 0.3 to 0.6bar.
*4:
Please set the supply air pressure at the maximum
working pressure plus 4 to 7psi.
*5:
Please set the supply air pressure at the maximum
working pressure plus 7 to 9psi.
5.5 4 to 20mA/10 to 50mA
Selection
Take the following steps to select an input signal by
using 4 to 20mA/10 to 50mA selecting function.
4 to 20mA or 10 to 50mA can be selected by
changing the SOCKET switch on the amplifier
shown in Figure 5.4. (Input signal is calibrated at 4
to 20mA at the time of delivery.)
For 4 to 20mA input, insert the SOCKET switch to
the two right pins. For 10 to 50mA input, insert the
SOCKET switch to the two left pins.
NOTE
Before switching the SOCKET switch, always cut
off the input signal.
F0504.ai
4 to 20 mA
10 to 50mA
Figure 5.4
4 to 20mA/10 to 50mA Selection
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