Download Discontinued

ELECTRO-PNEUMATIC
TRANSDUCING REGULATORS
INDEX
ETR Series
Features, Operating Principle
Application Example
Handling Instructions and Precautions
Input Signal and Secondary Pressure Characteristics
ETR010
ETR200
ETR600
ETR601
Discontinued
KTR Series
Features, Application Example
Handling Instructions and Precautions
Specifications, Order Code
Inner Construction
Dimensions
Caution
205
206
207
209
210
212
214
216
218
219
221
222
223
Before use, be sure to read the “Safety Precautions” on p. 31.
204
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
GENERAL CATALOG OF
AIR TREATMENT,
AUXILIARY, VACUUM
ELECTRO-PNEUMATIC
TRANSDUCING REGULATORS
ETR Series
Electro-Pneumatic Transducing Regulators
A fusion of air and electronics
●Flexibly control pressure.
●A sequencer (PC) allows remote control operation.
●Feedback control ensures superior flow rate
characteristics.
Body construction uses P.W.M. control poppet
●Simple construction. Not requiring special air quality.
●Non-bleed type means no air leak problems.
●Any mounting direction is acceptable. It can withstand
strong shocks and vibrations.
Operating Principle of Electro-Pneumatic Transducing Regulators
Input signal
w 2-way
exhaust valve
Discontinued
■Increasing output air pressure A
r Controller
e 2-way
air supply
valve
q Pressure sensor
y Diaphragm
t Pilot chamber
PR
When the controller r input signal increases, the 2-way valve e is
activated and pressure on the pilot chamber t rises. Then, forcing
downward the diaphragm y causes the valve assembly u to move
downward, opening the air supply port i, and causing the supply
pressure P to flow in and output air pressure A to rise. Pressure A is
detected using the pressure sensor q, and the feedback returns to
the controller.
The 2-way valves w, e respond to the difference between output air
pressure A and set pressure by an input signal, and switch supply air
on and off to perform pressure adjustment, to obtain an output air
pressure A that is proportional to the input signal.
2-way air
supply valve
P
2-way
exhaust
valve
A
Controller
Input signal
PR
i Air supply port
u Valve assembly
R
R
P
A
Pressure sensor
This illustration shows the ETR200 .
Block diagram
●What is an electro-pneumatic transducing regulator?
A multi-purpose pressure control device that operates in response to voltage or
current input signals from the outside to continuously step and accurately control high
relief regulator’s (pilot type) pilot section in electro-pneumatic transducers, for highprecision air pressure control.
205
The Koganei Electro-Pneumatic Transducing
Regulator is optimum for such applications as:
Level 1
Setting up simple test benches.
Level 2
Multiple stepping of air cylinder thrust.
Level 3
Controlling valves.
Level 4
Controlling various types of flow dispensers.
Level 5
Controlling tension force in winder equipment.
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
Application Example of Electro-Pneumatic Transducing Regulator
Level 1
●Automotive brake equipment
●Automotive electrical parts
●Various kinds of valve
operations
●Research test labs
ETR200
Gauge
Control box
Work for
measurement
Level 2
Level 3
●Automotive parts
●Wristwatch cases
●Print circuit board
●Various kinds of cutting
●Bakeries and snacks food processing plants
●Pharmaceutical plants
Dyna cylinder
Discontinued
ETR010
ETR200
Solenoid valve
350-4E2
Control valve
Scale meter
Sequencer
(analog output)
Control box
Level 4
Level 5
●Laser disk manufacturing
●Applying solder paste
●Chemical filling machine
●VTRs and other magnetic tape
●Coil wires
●Packaging material winding
●Electrical wiring material winding
ETR200
ETR010
Air brake motor
Koganei
suck back
valve
Tank
Air cylinder
Control box
Index table
Control box
ETR200
Remark: For other examples and technical information materials regarding the applications listed above, consult us.
206
Handling Instructions and Precautions
1. Install in locations where wiring, piping,
and maintenance work is easy to
perform.
2. Do not leave the primary pressure
applied when the electrical power has
been switched OFF. (At this time, the
secondary pressure could rise as high
as the primary pressure.)
3. A bootstrap operation (of 1-2 seconds)
occurs immediately after the power
supply is switched ON, which could
cause the secondary pressure to drop
temporarily.
4. After switching ON the power supply,
do not leave the primary pressure
lower than the setting value.
5. Do not mount a valve on the primary
side that will result in repeatedly
switching the primary pressure ON and
OFF.
6. Electric noise could result in operations
instability. Always take adequate noisereducing measures.
※ For wiring, use shielded wiring.
※ Use surge protection for nearby
solenoid valves and inductive loads.
7. Mount in locations that are as distant
from motors and powered lines as
possible. When mounting near inductive
loads and powered lines, always
implement load surge suppression, and
use magnetic shielding for insulation. In
particular, consult us if planning to use
in environments subject to much
external electric noise.
8. The electro-pneumatic transducing
regulator is adjusted to the specifications before being shipped out from
Koganei. Avoid removing or disassembling any of its parts because such
action could result in breakdowns.
9. For other handling issues, see the
User’s Manual included with the
product.
General precautions
1. Always thoroughly blow off (use
compressed air) the piping before
plumbing. Entering chips, sealing tape,
rust, etc., generated during piping work
could result in air leaks or other
defective operation.
2. As the interior of the electro-pneumatic
transducing regulator uses precision
parts, the compressed air should be
cleaned air devoid of solid substances,
moisture, etc.
2. Intrusion of contaminated air into the
device could have an adverse effect on
operations characteristics and
durability.
For the use of any other media, consult
us.
3. While the system can be used without
lubrication, if lubricating the actuators,
etc. is required, use Turbine Oil Class
1 (ISO VG32) or equivalent. Avoid
using spindle oil or machine oil.
4. The product cannot be used when the
media or the ambient atmosphere
contains any of the substances listed
below. Solvents, phosphate ester type
hydraulic oil, sulphur dioxide, chlorine
gas, or acids, etc.
5. If using in locations subject to dripping
water or oil, etc., or to large amounts of
dust, install a cover to protect the unit.
Wiring method
1. Removing the connector
(1) Loosen and remove the connector setscrew, and lift off the connector from
the regulator.
(2) Loosen the tightening screw, remove
the seal washer and seal, and push
the body out from the cap.
Tightening
screw
Gasket
Seal washer
Body
Seal
Cap
Setscrew
3：Monitor output
terminal
2：Input signal
terminal
3
Mounting and piping
Discontinued
207
2
1
1：Power supply
terminal
1：Common terminal
1......Power supply+DC24V terminal
2......Input signal terminal
Blank: DC 1∼5〔V〕
-1: DC 0∼5〔V〕
-2: DC 0∼10〔V〕
-4: DC 4∼20〔mA〕
3......Monitor output terminal
(DC1∼5〔V〕)
.....Common terminal (GND)
2. Wiring
(1) To avoid erratic operation in the electropneumatic transducing regulator due to
electric noise, divide the power supply,
input signal, and monitor output lines
each, and use shielded 2-wire cable for
each.
(2) The electro-pneumatic transducing
regulator consumes a maximum of 5W
of electrical power. For the power
supply, therefore, use shielded wiring
with a conductor area of 0.4mm2∼0.5
mm2 [0.0006∼0.0008in.2] (equivalent
to AWG24∼22).
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
Handling Instructions and Precautions
Recommendation
Peripheral pneumatic devices are
available for use with the ETR series. See
the following list for reference.
ETR010
TS6-01
Fitting
A, P port
TS8-01
TL6-01
TL8-01
Muffler
R port
KM-1
KM-11
U6-B (0)
Tube
U8-B (0)
Filter
F150-01
ETR200
TS8-02
Fitting
A, P port
TS10-02
TL8-02
TL10-02
PR port
Muffler
R port
150-30A
Discontinued
KM-2
KM-23
U8-B (0)
Tube
U10-B (0)
Filter
F600-02
ETR600
TS10-04
Fitting
A, P port
TS12-04
TL10-04
TL12-04
PR port
Muffler
R port
150-30A
KM-4
KM-41
U10-B (0)
Tube
U12-B (0)
Filter
F600-04
ETR601
TS10-04
Fitting
A, P port
TS12-04
TL10-04
TL12-04
PR port
Muffler
Tube
R port
150-30A
KM-4
KM-41
U10-B (0)
U12-B (0)
Filter
F600-04
208
Input Signal and Secondary Pressure Characteristics
Secondary Pressure and Output Voltage Characteristics
ETR010, 200, 600
1
MPa
V
5
0.9
DC1∼5V
0.7
DC4∼20mA
0.6
0.5
0.4
4
Output voltage
Secondary pressure
DC0∼10V
DC0∼5V
0.8
3
2
0.3
0.2
1
0.1
0
1
0
2
2
4
3
6
4
8
5
10
6
12
7
14
8
16
9
18
10V
0
20mA
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Secondary pressure
MPa
Input signal
ETR601
V
Discontinued
0.18
DC0∼5V
Secondary pressure
0.16
0.14
DC4∼20mA
DC1∼5V
0.12
0.1
4
DC0∼10V
Output voltage
MPa
5
0.2
3
2
0.08
0.06
1
0.04
0.02
0
0
0
1
2
3
4
2
4
6
8
5
6
7
8
9
10V
10
12
14
16
18
20mA
0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2
Secondary pressure
Input signal
1MPa = 145psi.
209
MPa
Specifications
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
ETR010
Symbol
Basic model
Item
ETR010
ETR010-1
Media
ETR010-2
ETR010-4
Air
Port size
Rc
R
1/8
Setting pressure range
MPa{kgf/cm2} [psi.]
0.005∼0.7 {0.05∼7.1} [0.7∼102]
Primary pressure range
MPa{kgf/cm2} [psi.]
Set pressure or more, and 0.9 {9.2} [131] or less
Proof pressure
MPa{kgf/cm2} [psi.]
Voltage
control
method
Current
control
method
Input
signal
Voltage
DC[V]
Input impedance
Current
Load impedance
Linearity ※
Step response Note
Wiring
0∼10
20
20
42
──
Ω
──
──
──
4∼20
250
1∼5
kΩ
Min. 5
DC [V]
24 (7W)±10%
Discontinued
±1.0% F.S.
±0.5% F.S.
s
Operating temperature range
(atmosphere and media)
Vibration resistance
0∼5
DC [V]
Power supply
Hysteresis ※
1.32 {13.5} [191]
1∼5
DC [mA]
Input impedance
Output voltage
Output
signal
kΩ
A
P
Max. 1
5∼50 [41∼122]
°C [ °F]
Max. 98 [322] {9.99}
m/s2 [ft/sec2]{G}
DIN connector (As standard)
Mass
0.44 [0.97]
kg [lb]
※ Values are calculated assuming a pressure full span (F.S.) of 0.7MPa [102psi.].
Note: Secondary pressure values assume unloading conditions.
Flow Rate Characteristics
and Relief Characteristics
Order Code
Basic model
Input signal
ETR010
1
2
4
-
ETR010
Secondary pressure
MPa
0.7
0.6
0.5
0.4
Mounting base is standard equipment.
0.3
●Blank
1
2
4
DC1∼5(V)
DC0∼5(V)
DC0∼10(V)
DC4∼20(mA)
0.2
0.1
20
R/min（ANR）
15
10
5
0
5
Relief flow rate（A→R）
10
15
20
R/min（ANR）
Flow rate（P→A）
Remark: Primary pressure is 0.7MPa [102psi].
1MPa = 145psi. 1R/min = 0.0353 ft3/min
210
Inner Construction
r
q
w
y
u
u
i
i
e
P
(Primary side)
t
A
(Secondary side)
A
o
Major Parts and Materials
No.
Parts
Materials
No.
Parts
Materials
q
DIN connector
Plastic
t
Pressure sensor
Plastic (diffusion-type semiconductor)
w
Cover
Plastic
y
Circuit board assembly
Glass epoxy
e
Body
Aluminum alloy (anodized)
u
Coil assembly
──
r
Gasket
Synthetic rubber (chloroprene)
i
Plunger
Magnetic stainless
o
Mounting base
Mild steel (zinc plated)
Discontinued
Dimensions (mm)
ETR010
113.3
102
42
Wiring port boreφ6∼φ10
30
67
22.5
65
71.5
A
10.5
R・P
A
P
16
32
55
211
78
4-M4×0.7, Depth 6
Mounting thread
2-φ6.5
Mounting hole
64
11
2
9
R
R c1 /8
1 0. 5
2-Rc1/8
（89.8）
53
27.5
Specifications
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
ETR200
Symbol
Basic model
Item
ETR200
ETR200-1
Media
ETR200-2
ETR200-4
Air
Port size
Rc
1/4
0.01∼0.7 {0.1∼7.1} [1.5∼131]
Setting pressure range
MPa {kgf/cm2} [psi.]
Primary pressure range
MPa {kgf/cm2} [psi.] Set pressure ＋0.1 {1.0} [15] or more, and 0.9 {9.2} [131] or less
1.32 {13.5} [191]
MPa {kgf/cm2} [psi.]
Proof pressure
Voltage
control
method
Current
control
method
Input
signal
DC[V]
Voltage
Input impedance
kΩ
DC [mA]
Current
Input impedance
Load impedance
Linearity ※
Step response Note
Wiring
42
Ω
A
P
──
──
──
4∼20
──
250
1∼5
kΩ
Min. 5
24 (7W)±10%
Discontinued
±1.0% F.S.
±0.5% F.S.
s
Operating temperature range
(atmosphere and media)
Vibration resistance
0∼10
20
DC [V]
Power supply
Hysteresis ※
0∼5
20
DC [V]
Output voltage
Output
signal
1∼5
R
Max. 2
5∼50 [41∼122]
°C [ °F]
Max. 98 [322] {9.99}
m/s2 [ft/sec2] {G}
Mass
DIN connector (As standard)
0.74 [1.63]
kg [lb]
※ Values are calculated assuming a pressure full span (F.S.) of 0.7MPa [102psi.].
Note: Secondary pressure values assume unloading conditions.
Flow Rate Characteristics
and Relief Characteristics
Order Code
Basic model
ETR200
Input signal
Secondary pressure
MPa
ETR200
-
1
2
4
0.7
0.6
0.5
0.4
Mounting base is standard equipment.
●Blank
1
2
4
0.3
DC1∼5(V)
DC0∼5(V)
DC0∼10(V)
DC4∼20(mA)
0.2
0.1
500
R/min（ANR）
0
500
Relief flow rate（A→R）
1000
1500
2000
R/min（ANR）
Flow rate（P→A）
Remark: Primary pressure is 0.83MPa [120psi.].
1MPa = 145psi. 1R/min = 0.0353 ft3/min
212
Inner Construction
!2
q
u
!4
!6
!5
!8
w
e
o
r
t
i
!3
!1
Ay
P
A
(Secondary side)
(Primary side)
R
!0
!7
Major Parts and Materials
No.
Parts
Materials
No.
Parts
q
DIN connector
Plastic
!0
Valve
Materials
Brass (NBR baked)
w
Diaphragm
Aluminum (NBR baked)
!1
Body
Aluminum alloy (anodized)
e
Valve pin
Brass
!2
Gasket
Synthetic rubber (chloroprene)
r
Valve seat
Brass
!3
Pressure sensor
Plastic (diffusion-type semiconductor)
t
Spring
Piano wire
!4
Circuit board assembly
Glass epoxy
y
Exhaust cover
Aluminum alloy (anodized)
!5
Coil assembly
──
u
Cover
Plastic
!6
Plunger
Magnetic stainless
i
Balancer
Brass
!7
Mounting base
Mild steel (zinc plated)
o
Adapter
Aluminum alloy (anodized)
!8
Check valve
Synthetic rubber (NBR)
Discontinued
Dimensions (mm)
113.3
ETR200
42
102
30
Wiring port boreφ6∼φ10
67
22.5
27.5
53
65
P
P
R
R
R c1 /4
A
A
213
55
78
64
4-M4×0.7, Depth 6
Mounting thread
2-φ6.5
Mounting hole
32
12
2
9
34.5
20
14.5
60
119.5
2-Rc1/4
PR
（137.8）
M5×0.8
Specifications
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
ETR600
Symbol
Basic model
Item
ETR600
ETR600-1
Media
ETR600-2
ETR600-4
Air
Port size
Rc
1/2
0.01∼0.7 {0.1∼7.1} [1.5∼102]
Setting pressure range
MPa {kgf/cm2} [psi.]
Primary pressure range
MPa {kgf/cm2} [psi.] Set pressure ＋0.1 {1.0} [15] or more, and 0.9 {9.2} [131] or less
1.32 {13.5} [191]
MPa {kgf/cm2} [psi.]
Proof pressure
Voltage
control
method
Current
control
method
Input
signal
DC [V]
Voltage
Input impedance
Current
Load impedance
Linearity ※
Step response Note
Wiring
20
42
Ω
──
P
A
──
──
4∼20
250
1∼5
kΩ
Min. 5
DC [V]
24 (7W)±10%
Discontinued
±1.0% F.S.
±0.5% F.S.
s
Operating temperature range
(atmosphere and media)
Vibration resistance
0∼10
──
DC [V]
Power supply
Hysteresis ※
20
0∼5
DC [mA]
Input impedance
Output voltage
Output
signal
kΩ
1∼5
R
Max. 2
5∼50 [41∼122]
°C [ °F]
Max. 98 [322] {9.99}
m/s2 [ft/sec2] {G}
DIN connector (As standard)
1.2 [2.65]
kg [lb]
Mass
※ Values are calculated assuming a pressure full span (F.S.) of 0.7MPa [102psi.].
Note: Secondary pressure values assume unloading conditions.
Flow Rate Characteristics
and Relief Characteristics
Order Code
Basic model
Input signal
ETR600
1
2
4
-
ETR600
Secondary pressure
MPa
0.7
0.6
0.5
Mounting base is standard equipment.
0.4
●Blank
1
2
4
DC1∼5(V)
DC0∼5(V)
DC0∼10(V)
DC4∼20(mA)
0.3
0.2
0.1
2000
1000
0
1000
2000
3000
R／min
（ANR）
R／min
（ANR）
Relief flow rate（A→R）
Flow rate（P→A）
Remark:Primary pressure is 0.83MPa [120psi.].
1MPa = 145psi. 1R/min = 0.0353 ft3/min
214
Dimensions (mm)
ETR600
55
120.8
42
109.5
Wiring port boreφ6∼φ10
30
φ22.5
65
7.5
53
27.5
Rc1/2
M5×0.8
P
P
R
R
142.5
PR
A
A
2
9
17
49
32
83
PR
92
（160.7）
2-Rc1/2
18.5
80
65
Remark: The inner construction and major parts and materials of the
ETR600 are the same as the ETR200. See p.213.
215
100
85
40
Discontinued
4-M4×0.7, Depth 6
Mounting thread
4-φ5.5
Mounting hole
Specifications
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
ETR601
Symbol
Basic model
Item
ETR601
ETR601-1
Media
ETR601-2
ETR601-4
Air
Port size
Rc
0.01∼0.2 {0.1∼2.0} [1.5∼29]
MPa {kgf/cm2} [psi.]
MPa {kgf/cm2} [psi.] Set pressure ＋0.05 {0.5} [7] or more, and 0.4 {4.0} [58] or less
0.6 {6.1} [87]
MPa {kgf/cm2} [psi.]
Setting pressure range
Primary pressure range
Proof pressure
Voltage
control
method
Current
control
method
Input
signal
DC [V]
Voltage
Input impedance
Current
Load impedance
Linearity ※
Step response Note
Wiring
0∼5
0∼10
20
42
──
Ω
──
R
P
A
──
──
4∼20
250
1∼5
kΩ
Min. 5
DC [V]
24 (7W)±10%
Discontinued
±1.0% F.S.
±0.5% F.S.
s
Operating temperature range
(atmosphere and media)
Vibration resistance
20
DC [V]
Power supply
Hysteresis ※
kΩ
1∼5
DC [mA]
Input impedance
Output voltage
Output
signal
1/2
Max. 2
5∼50 [41∼122]
°C [ °F]
Max. 98 [322] {9.99}
m/s2 [ft/sec2] {G}
DIN connector (As standard)
1.2 [2.65]
kg [lb]
Mass
※ Values are calculated assuming a pressure full span (F.S.)of 0.2MPa [29psi.].
Note: Secondary pressure values assume unloading conditions.
Flow Rate Characteristics
and Relief Characteristics
Order Code
Basic model
ETR601
Input signal
Secondary pressure
MPa
ETR601
-
1
2
4
0.2
0.15
Mounting base is standard equipment.
●Blank
1
2
4
DC1∼5(V)
DC0∼5(V)
DC0∼10(V)
DC4∼20(mA)
0.1
0.05
800 400
0
400
R／min
（ANR）
Relief flow rate（A→R）
800
1200 1600 2000
R／min
（ANR）
Flow rate（P→A）
Remark:Primary pressure is 0.25MPa [36psi.].
1MPa = 145psi. 1R/min = 0.0353 ft3/min
216
Dimensions (mm)
ETR601
55
120.8
42
Wiring port boreφ6∼φ10
30
109.5
φ22.5
65
7.5
53
27.5
Rc1/2
M5×0.8
P
P
R
R
142.5
PR
A
A
2
9
17
49
32
83
PR
92
（160.7）
2-Rc1/2
18.5
80
65
85
100
40
Discontinued
4-M4×0.7, Depth 6
Mounting thread
4-φ5.5
Mounting hole
Remark: The inner construction and major parts and materials of the
ETR601 are the same as the ETR200. See p.213.
調イラストP138 1
217
KTR Series
Electro-Pneumatic Transducing Regulators
●Offer high-precision pressure control.
●Excellent pressure and flow rate characteristics.
●Any mounting direction is acceptable.
(adjustment is required, however)
●Lightweight, compact unit occupies little space.
Discontinued
■Application example
q Tension control
Equipment applications: Printing equipment, paper plant equipment, plastic film processing
equipment, textile machinery, grinders and polishers, etc.
w Pressure control (grinders)
130
230
KTR
KRA
200H
KTR
KR
KR
KRA
DJ cylinder
130
230
KR
DJ cylinder
Work
Motor
218
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
ELECTRO-PNEUMATIC
TRANSDUCING REGULATORS
Handling Instructions and Precautions
General precautions
Pressure regulation and calibration
1. Do not install a valve on the primary side that will result in
front of or behind the precision regulator.
5. Do not apply excessive external force on the product.
MPa KTR200-2 input signal-pressure curve
1
0.9
0.84
Secondary pressure
repeatedly switching the primary pressure ON and OFF.
2. Always thoroughly blow off (use compressed air) the piping before
connecting to electro-pneumatic transducing regulators.
3. Use air for the media. For the use of any other media, consult us.
In addition, the media constantly bleeds to the outside. Use with
proper understanding of the structural characteristics.
4. Remove as much solid substances, moisture, oil, etc., as possible
from the air supplied to the electro-pneumatic transducing
regulator. In addition, avoid using the lubricator in locations in
0.84MPa
0.8
Span adjustment range
(Normal operation)
0.7
0.65MPa
0.6
0.5
0.4
0.3
0.21MPa
0.2
Span adjustment range
(Reverse operation)
0.1
0.02
0
0.02MPa
0
1
2
3
4
5
6
7
Input signal
Mounting and piping
8
9 10
VDC
MPa KTR-200-4 input signal-pressure curve
1
1. IN and OUT are indicated on the bottom of the body. Make the
Connecting screw
Rc1/4
0.84
Secondary pressure
piping connections so as to conform with these instructions. While
the piping port with no IN or OUT display is a gauge port, it also
can be used as an OUT port. Be careful to use the proper
connection, since reversing the IN and OUT connection ports
could result in damage to the electro-pneumatic transducing
regulator and to the pressure gauge.
2. When screwing in piping or fittings to the electro-pneumatic
transducing regulator, tighten to the appropriate tightening torque
shown below.
0.9
0.84MPa
0.8
0.7
Span
adjustment
range
(Reverse
operation)
0.5
0.4
0.3
0.24MPa
0.2
Discontinued
0.1
0.02
Tightening torque N･m {kgf･m} [ft･lbf]
0
11.6∼13.4 {1.18∼1.37} [8.56∼9.88]
0.02MPa
4
6
8
10
12
14
16
Input signal
squared section on the pressure gauge’s piping connection port.
If output pressure fails to rise after signals have been sent to the
unit, it may mean that the orifice (KTR200: φ0.2 [0.008in.], KTR201:
φ0.5 [0.02in.]) is clogged. Remove the orifice and pass a pin
through it to clean out the clogging.
0.1
0.1MPa
0.09
Secondary pressure
Maintenance
Span adjustment range
(Normal operation)
0.08
0.07
0.06
0.06MPa
0.05
Span adjustment range
(Reverse operation)
0.04
0.03
0.02
0.02MPa
0.01
0
4
6
8
10
12
14
Input signal
16
18
20
1MPa = 145psi
mADC
In the electro-pneumatic transducing regulator, the mounting
conditions can cause shifts in the zero point and span adjustment
values. Use the following sequence to calibrate the values.
1. Use a Philips-type screwdriver to remove the cover of the electropneumatic transducing regulator.
Orifice
Wiring
Spacer
Connect wiring in conformance with the table below. Ensure that the
wiring connections are sufficiently distant from inductive loads
(solenoid valves, motors, relays, etc.) and powered lines.
Polarity of signal
Normal operation
Note 1
Reverse operation
Red lead wire
＋
−
White lead wire
−
＋
Note 2
Notes: 1. Increasing the signal causes the output pressure to increase.
2. Increasing the signal causes the output pressure to decrease.
219
20
MPa KTR-200-4 input signal-pressure curve
4. If mounting the electro-pneumatic transducing regulator as a
single unit, use a bracket.
5. While any mounting direction is acceptable, use positioning that
ensures easy access for zero point and span adjustment
operations.
6. Mount in locations that are free of vibrations.
18
mADC
3. Using a wrench to mount a pressure gauge, always apply it to the
Electro-pneumatic
transducing regulators
Span
adjustment
range
(Normal
operation)
0.62MPa
0.6
Cover
Countersunk
head screw
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
2. Set the input signals as shown in the table below.
Input signal
Model
KTR200-2
0〔VDC〕
KTR20□-4
4〔mA DC〕
3. Check that the output pressure is at 0.02MPa {0.2kgf/cm2} [3psi.].
If not at this value, use a screwdriver to set the lower limit with the
zero point adjusting screw (for reverse operations, set the upper
limit).
Zero adjusting screw
Span adjusting screw
Orifice
ZERO
SPAN
−（＋）
（−）＋
Span adjusting screw
( ) : adjusting
for KTR20□-4
−
＋
Zero adjusting
screw
Discontinued
※ Always monitor the pressure gauge while slowly turning the zero
point adjusting screw. Turning the screw farther than absolutely
necessary could result in damage to the nozzle, leading to
breakdowns.
4. Set the input signals as shown in the table below.
Model
KTR200-2
KTR20□-4
Input signal
10〔VDC〕
20〔mA DC〕
5. Use a small screwdriver to set the upper limit with the span
adjusting screw (for reverse operations, set the lower limit).
6. Repeat the operation step 2∼5, until the upper and lower limits
are determined.
7. When calibration is complete, use a countersunk head screw with
cross hole to remount the cover. The tightening torque for the
countersunk head screw should be 0.5N・m {0.05kgf・m} [0.37ft・lbf].
220
ELECTRO-PNEUMATIC
TRANSDUCING REGULATORS
KTR Series
Symbol
Specifications
Model
KTR200-2
Item
KTR201-4
KTR200-4
Media
Air
Port size
Rc
1/4
Discontinued
Pressure setting range Note MPa {kgf/cm2} [psi.]
0.02∼0.84 {0.2∼8.6} [3∼122]
Primary pressure range MPa {kgf/cm2} [psi.]
MPa {kgf/cm2} [psi.]
Proof pressure
Input signal
Current
Voltage 2-lead wires
VDC
mADC
Ω
Impedance
Linearity
% F.S.
Hysteresis
% F.S.
Repeatability
% F.S.
Step response
−
−
4∼20
805
260
Air consumption
R/min [ft3/min] (ANR)
Operating temperature range
180
1.5
1.0
1.0
Span adjusting lower limit MPa {kgf/cm2} [psi.]
MPa {kgf/cm2} [psi.]
Current 2-lead wires
0∼10
s
Relief sensitivity
0.7 {7.1} [102]MAX., Set pressure＋0.02 {0.2} [3]
1.5 {15.3} [218]
Control method
Voltage
0.02∼0.1 {0.2∼1.0} [3∼15]
1.0 {10.2} [145] MAX., Set pressure＋0.035 {0.36} [5.1]
0.1
0.5
Max. 1.0
Max. 0.2
0.65 {6.6} [94]
−
0.24 {2.4} [35]
Set pressure＋0.001 {0.01} [0.15]
Max. 3.7 [0.13]
Max. 4.8 [0.17]
5∼60 [41∼140]
°C [ °F]
Prohibited
Lubrication
Pressure gauge connection port size
1/4
Rc
As standard
Bracket
Mass
0.94 [2.07]
kg [lb]
Note: Pressure settings cannot be made in the range of 0 to 0.02 MPa {0∼0.2kgf/cm2} [3psi.].
Order Code
KTR
-
-
Input signal
2 : 0∼10VDC Note 1
4 : 4∼20mADC
Pressure gauge specifications
Blank : Without pressure gauge
G1 : With pressure gauge (1MPa) [145psi.] Note 1 Note 3
G3 : With pressure gauge (0.3MPa) [44psi.] Note 2 Note 3
Body model
200 : Standard specifications (0.84MPa [122psi.] specification)
201 : Low pressure specifications (0.1MPa [15psi.] specification)
Electro-pneumatic transducing regulators
KTR series
221
Notes: 1. Not available for KTR201.
2. Not available for KTR200.
3. For pressure gauge specifications and dimensions, see p. 154.
MPa
MPa
0.4
0.9
0.35
0.8
0.3
0.25
0.2
0.15
0.1
0.05
0
ELECTRO-PNEUMATIC TRANSDUCING REGULATORS
Flow Rate Characteristics
Secondary pressure
Secondary pressure
Pressure Characteristics
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.1
0
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Primary pressure
0
1.0
0
100
MPa
300
200
400
Flow rate
500
R/min（ANR）
1MPa = 145psi. 1R/min = 0.0353 ft3/min
Inner Construction
Major Parts and Materials
No.
Parts
Materials
K
q
Body
Aluminum alloy die-casting
K
w
Magnet
Alnico
K
e
Flapper
Beryllium copper
K
r
Moving coil
K
t
Nozzle
K
y
Orifice
K
u
Main valve
K
i
Exhaust valve
K
o
Main valve spring
K
!0
Diaphragm spring
Stainless steel wire for spring
K
!1
Control diaphragm
Synthetic rubber (NBR) with layer cloth
K
!2
Pilot diaphragm
Synthetic rubber (NBR) with layer cloth
K
!3
Bracket
Urethane wire
Brass
Brass
Stainless steel
Stainless steel
Discontinued
Stainless steel wire for spring
Rolled steel plate
OUT
IN
Operating Principles
Magnet
Flapper
Moving coil
Nozzle
Nozzle back
pressure chamber
Pilot diaphragm
Exhaust valve
Orifice
Main valve
Control diaphragm
IN
OUT
● Increasing the input signal causes the
coil output to rise, pushing down the
flapper, reducing the distance
between the flapper and the nozzle,
and increasing the back pressure of
the nozzle. This action causes the
pilot pressure to rise, opening the
main valve and causing the secondary
pressure to rise. The rise in secondary
pressure stops and stabilizes at the
point where the coil output comes into
balance with the sum of nozzle back
pressure and flapper reaction force.
The above operation can be used to
generate air pressure on the
secondary side in proportion to the
size of the electrical signal.
222
Dimensions (mm)
●KTR
4−φ6.6
Bracket mounting dimension
（400）
105 Note 3
102 Note1
G3/8
25
ＺＥＲＯ
14.2
φ42.5
28.7 Note 2
ＳＰＡＮ
2−Rc1/4
Connection port
32
（67）
2−Rc1/4
Pressure gauge
connection port
□54
Discontinued
※KTR201-4 dimensions differ at the points shown in Notes 1∼3.
Note 1：102.5
2：29.2
3：105.5
Dimensions of Pressure Gauge (mm)
G1-40, G3-40
46
(40)
(6)
26.5
R1/4
0.6
0.2
0
0.8
MPa
φ42.5
0.4
M5×0.8
1
14
Width across flats
223
37
65
25
37
77