<5.
Operation
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5-1
IM 21B03D01-01E
5. Operation
5.1 Auto/Manual (A/M) Transfer
Mechanism
Please refer to following instruction for the model
with A/M selector switch (optional code: /AM).
For the model without A/M selector switch, please
go to section 5.2.
Use of A/M transfer mechanism requires that a
supply pressure adjusting regurator be installed.
(1) Set the A/M selector switch provided at the front
(on the supply air pressure gauge side) of the
converter to “M.” (Turn the switch clockwise.)
(2) This allows supply air pressure to be output,
which is supplied to the regurator.
(3) Output air pressure can be regulated using
the pressure regulator. Because the output
pressure is not same as supply pressure, it
is necessary to adjust it watching an output
pressure gauge attached to this instrument.
Pressure gauge minimum unit is 10kPa
(standard output type) or 20kPa (doubled
output type).
A/M selector switch
F0501.ai
Figure 5.1
Auto/Manual Transfer Mechanism
5.2
Zero Point Adjustment
(1) For the model with A/M selector switch, please
set the A/M selector switch to A (Auto). (Turn
the switch counterclockwise.)
(2) Apply supply air pressure to the current-to-
pneumatic converter.
For supply air pressure, see the data plate or
Table 5.1 “Recommended Supply Air Pressure.”
Standard output applies for model suffix output
signal code “1, 3, 5, 7” and multiplied pressure
output for model suffix output signal code “2, 4,
6, 8, 9.”
Table 5.1
Recommended Supply Air Pressure
Output
Signal Code
Output Signal
Supply Air
Pressure
1
20 to 100 kPa
130 to 150 kPa
2
40 to 200 kPa
230 to 260 kPa
3
0.2 to 1.0 kgf/cm
2
1.3 to 1.5 kgf/cm
2
4
0.4 to 2.0 kgf/cm
2
2.3 to 2.6 kgf/cm
2
5
0.2 to 1.0 bar
1.3 to 1.5 bar
6
0.4 to 2.0 bar
2.3 to 2.6 bar
7
3 to 15 psi
19 to 22 psi
8
6 to 30 psi
34 to 37 psi
9
3 to 27 psi
34 to 36 psi
(3) Then input an input signal.
Input a 0% electric signal.
Apply 4mA for 4 to 20mA input or 10mA for 10
to 50mA input.
(4) Make zero point adjustment so that the output
air pressure reaches the specified pressure.
For output air pressure, see the data plate or
Table 5.2 “Output Signals.”
To increase output air pressure, turn the
zero adjustment clockwise. To decrease
the pressure, turn the zero adjustment
counterclockwise. (See Figure 5.2.)
For the model with reverse action (/RA),
please turn zero adjustment counterclockwise
to increase output air pressure. To decrease
output air pressure, please turn zero adjustment
clockwise.
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