Cat.No. B13-05-I

PC20・25
Programmable Pressure Controller
Overview
Stable pressure control with rapid and precise operation.
This product can support for improving performance ofinspection and calibration process. Automatic
labor-saving for inspection device is possible with its
pressure control ability.
Through automatic control of pressure generation andincreasing/decreasing speed, the equipment enables atest process regardless of operator's skill, improving thetest accuracy and remarkably reducing the test time
(Takt time).
Automated and labor-saved test equipment for variousDUTs.
● Testing on instruments and converters＊Regulating valve, I/P positioner＊Pressure measurement and conversion instruments● Testing and calibration on medical instrumentation＊Sphygmomanometer＊Inhaler, gas insuﬄator● Testing on pressure vessels and safety parts＊Automobile parts＊Gas treatment equipment＊Pneumatic devices

Dual display and oﬀset bar chart display
Two large LED indicators improve legibility and operability.
＊The large output pressure LED indicator (Red) and pressure
setup LED indicator (Green) allow grasp of the pressure
setting and status at a glance.
＊Operability in manual pressure regulation has been improved
contributing for eﬃciency data sampling application.
＊Display scaling enables data conversion to non Pa unit
systems.
Output pressure display

Easy manual setup mode and diverse
setting program memory functions<Manual procedure>●Since any desired pressure with the pressure
range can be set for each digit, ﬁne pressure
regulation can easily be performed on a digit
basis.
Pressure increment /decrement keys

Oﬀset bar graph display

Setting pressure display

Simpliﬁed leakage test function (Sealed pressure variation measurement method)
If leakage occurs in pressure application test, the reliability of test data is lost,
remarkably reducing the test eﬃciency. To eliminate the risk, the sealed pressure
measurement function is featured to perform simpliﬁed leakage in accordance with thechange on pressure variation.
●The test can be performed at the touch of the LEAK button on the operation panel.
Complex operations are no required.
Automatic inspection based on the set condition.
In leakage test, the output pressure indicator displays the current pressure, thepressure setup indicator displays pressure variation from the start of test, and theprogram setup indicator displays the remaining test time.

LEAK test key

Setting items display(Remaining test time)PC20・25
Programmable Pressure Controller

PC20 Micro pressure, Low pressure (Air)／PC25 High pressure (Water)
PC20
Compressed air (Driving source)

Analog output

PC25

PC28

Compressed air(Driving source)

Remote contact
input

Water

Return(Drain)

RS-232C or GP-IB
Communication

10 program patters can be set with 20 division as maximum.
A. Equal division setting (Set as "divid")
Sample program pattern
Pressure unit

MPa

Number of repetitions

3 (Max. 99)

10.80.6

Minimum pressure

0.000

0.4

Maximum pressure

1.000

Number of divisions

5 (Max. 20)

Sweep time (s)10Retaining time (s)

20

MPa

PNT1 PNT2 PNT3 PNT4 PNT5 PNT6PNT5 PNT4 PNT3 PNT2 PNT1

●Reverse mode (Set as "rEvrS")When output pressure reaches themaximum point number, it isperformed for decreasing point
number down to the minimum one.

0.2
0Start 10 Sec.

20 Sec.

Time End

Repeated once.

MPa

PNT1 PNT2 PNT3 PNT4 PNT5 PNT610.8
0.6

In addition to the necessary settingsabove, there is an item for selecting
the repeating mode of program
patterns. The operation is represented
by the following two charts.

●Round mode (Set as "roUnd")
When output pressure reaches themaximum point number, it isrepeated from the minimum point
number.

0.4
0.2
0

Start

End
Repeated once.

Time
Repeated twice.

B. User setting (Set as "FrEE")
When a user setup is used, the pressure values above and increasing and decreasing speeds can be changed.
Pressure point

MPa

Point number

123

4

Pressure (MPa)

0.2

0.8

1.00.0Sweep time (s)515512PNT1

Repeat time101288（PNT Max 20）
PNT3
PNT4

PNT1

PNT2

10.8
0.6
0.4
0.2

Time05S 10S

Retaining time (s)

PNT2

15S

12S

5S 8S

Repeated once.

12S

It is possible to select reverse modeand round mode in the case of equal
division setting.

8S

Repeated twice.

3 (Max. 99)(Maximum 10 pattern is available in A or B)

2

PC20・25
Programmable Pressure Controller

For air pressure

For water pressureThis photo shows example of combination PC25
and pressure source unit (PC28)

This equipment performs automatic pressure
control ranging from micro pressure (±1kPa) tointermediate pressure (1MPa).
When negative pressure range is selected,
it enables automatic continuous pressure control
ranging from negative pressure to positive pressure.

PC25 can automatically control pressure by using
environmentally friendly water (Distilled water,deionized water) instead of gases for safety
purpose.

Pressure range (For air pressure)Pressure range (For water pressure)

Minimum setting
resolution

Range
Positive Bidirectional
andpressure compound
range
ranges

Accuracy※Positive Bidirectionaland
0.2% 0.1%
pressure compound
range
ranges0 to 1±1kPa

0.00010.0001○

0 to 2±2kPa

0.0001

0.001○

0 to 5±5kPa

0.001

0.001

○

○

0 to 10±10kPa

0.001

0.001

○

○

0 to 20±20

kPa

0.001

0.01

○

○±50

0 to 50

kPa

0.01

0.01

○

○

-0.1 to 0.1 MPa−−−

0.0001○○

0 to 0.2 -0.1 to 0.2 MPa

0.00010.0001○○

0 to 0.5 -0.1 to 0.5 MPa

0.00010.0001○○0.0001−−−○○−−−−−−

0 to 1MPa

Minimum setting
resolution

Range

Accuracy

Range

Controllable
range

0 to 20.5 to 2

MPa

0.0001○○0 to 5

0.5 to 5

MPa

0.001

○

○0 to 10

0.5 to 10

MPa0.001○○0 to 20

0.5 to 15

MPa

0.001

○

○

0.2% 0.1%

When pressure range is 20MPa,
maximum controllable pressure is 15MPa.

With negative pressure range, controllable minimum pressure is -0.08MPa on negative side.
＊When the accuracy ±0.1% is required, accuracy at negative pressure side will be ±0.2%.

Dimensions
350

212

PC20 PRESSURE CONTROLLER
MEASURE

LEAK

OPEN

REMOTEPakPa
MPa
U1U2secSAVE
LOAD

NUM

STARTRANGE

PAUSE
HOLD
UP
DOWN

-OFFSET
0+SWEEP
STEP

POINT

MODE

1AUTO/MANUAL

2345+/POWER

MEASURELEAK.

START/PAUSEOUTPUT

UP

OPEN

132

AUTO
MANUALSETNUM

67890
CLRZERO ADJ.

UNIT

ENTER

DOWN

NAGANO KEIKI CO.,LTD.

(15)

CTRL
PRGM

※PC25 dimension is identical to PC20.

3PC20・25
Programmable Pressure Controller

Speciﬁcations1
PC20 Pressure controller (For air pressure)
Accuracy (23±3℃)

Error message
display
Approx.
warm up time

±0.2%F.S. (Standard)±0.1%F.S. (Depending on pressure range.
Accuracy at negative pressure
side also varies).

Pressure stability

Within ±0.05%F.S.

Response time

Within 3 Sec. From the start to change up
to ±0.2%F.S. (With no load)
From any pressure value up
to ±25%F.S.

Temperature Zerocoeﬃcient
Span
Position eﬀect (Zero)

Functions

Supplypressure(Maximum1.2MPa)±0.1%F.S. In all directions(Pressure range 50kPa or lower, ±50kPa or lower)±0.01%F.S. In all directions(Pressure range ±0.1MPa or higher)

Pressure Pa, kPa, MPa, U1 (Scaling 1),
U2 (Scaling 2)
unitSettingpoints
Sweeptime
Steptime
Repeattimes

MemoryOperation mode

5 minutes or longer(Recommended 30 minutes)
Clean dry air only.
Also nitrogen gas applicable.
Care must be taken when handling theexhaust nitrogen gas.

Media

±0.01%F.S./℃ (±0.1%F.S. Spec.)±0.02%F.S./℃ (±0.2%F.S. Spec.)±0.01%F.S./℃ (±0.1%F.S. Spec.)±0.02%F.S./℃ (±0.2%F.S. Spec.)[ErrXX] Codes indicate errors

Range
20kPa
or lower

0.05MPa or higher

Range
50kPa
or higher

Pressure range + 0.1MPa or higherRangewithnegative
pressure

0.5MPa or higher (±5kPa or lower ofcontinuous range is 0.1MPa or higher)

Pressure connection

Rc1/4

Exhaust port: Rc1/4

Media consumption

Approx. 30L/min or lower(Flow rate converted by 20℃
at a pressure range of 1MPa)

1 to 20 divisions between upperand lower limits or any 21 arbitrary
points within pressure range

Analog output

1 to 600 sec. with 1 sec. step

Interface

RS-232C (Dsub 9 pins)
9600 / 19200 / 38400bps SynchronousOption GP-IB (Base on IEEE488)

Remote control
terminal
Operating /storage position
Operating /storage temperature /humidity

UP / DOWN / OPEN operation Dead
front contact input (Terminal block M3)

Storage temperature-10 to 50℃

Calibration interval

6 Months

Power source
voltage

100 to 240V AC(Allowable ﬂuctuation range 85 to 264V AC)
Frequency：47 to 63Hz

Power consumption

Maximum 40VA

1 to 600 sec. with 1 sec. step
1 to 99 times or inﬁnite times
10 numbers
Programmable auto sweep
Operation in accordance with programmed pattern

1 to 5V DC/F.S.
(Accuracy ±0.05%F.S.)

Horizontal position for use and storage
5 to 40℃ 20 to 80%RH or lower
No condensation

Programmable manual sweep
The manual operation of the setting program

Manual pressure output
Arbitrary pressure setting
Pressure measurement function
As a digital pressure gauge(Accuracy: Pressure generation accuracy ±1digit)
Simpliﬁed leak test Inspection pressure /Setting time, Pressure descent indication

Display

LED

Controlled pressure values 5 digits(Character height approx. 14mm)
Setting pressure values 5 digits(Character height approx. 10mm)
Setting item values 3 digits(Character height approx. 8mm)

Withstand voltage
Insulation resistanceDimension

Operation, status, unit, and oﬀset monitors

Weight1000V AC between power source andcasing, 1 minute
100MΩ or higher, 500V DC between
power source and casing
Approx. 212 (Ｗ) × 132 (Ｈ) × 350 (Ｄ)(Excluding convex parts)
Approx. 8kg

Operating principle
Controls the compressed air entering fromthe pressure supply slot (SUPPLY) using
the control valve, transfers a control
command to the servo circuit based on thevalue of the pressure then outputs it fromthe pressure output (OUTPUT).
The value of the pressure sensor isprocessed by the CPU displayed as thecurrent pressure value in real time.

Display, Operational key

CPU

RS-232C／GP-IB
D／AContact input

Sensor amp.

Interface
Analog output
Remote control

Servo amp.

Pressure sensor

Control valve
SUPPLYOUTPUT

4

EXHAUSTPC20・25
Programmable Pressure Controller

Speciﬁcations2
PC25 Pressure controller (For water pressure)
Accuracy (23±3℃)

Error message
display
Approx.
warm up time

±0.2%F.S. (Standard)±0.1%F.S. (High accuracy)[ErrXX] Codes indicate errors
5 minutes or longer(Recommended 30 minutes)

Pressure stability

Within ±0.07%F.S.

MediaDeionized water or distilled water

Response time

Within 10 Sec. From the start to change up
to ±0.2%F.S. (With no load)
From any pressure value up
to ±25%F.S. (With a step)

Supply pressure(Maximum 18MPa)

Control pressure + 1MPa or higher

Pressure connection

Rc1/4

Temperature Zerocoeﬃcient
Span±0.01%F.S./℃ (±0.1%F.S. Spec.)±0.02%F.S./℃ (±0.2%F.S. Spec.)±0.01%F.S./℃ (±0.1%F.S. Spec.)±0.02%F.S./℃ (±0.2%F.S. Spec.)

Analog output

1 to 5V DC/F.S.
(Accuracy ±0.05%F.S.)

Position eﬀect (Zero)±0.01%F.S. In all directions

Functions

Pressure kPa, MPa, U1 (Scaling 1),U2 (Scaling 2)
unit
Settingpoints
Sweep
time
Step
time
Repeattimes

1 to 20 divisions between upper and lower
limits or any 21 arbitrary points withinpressure range

Remote control
terminal
Operating /storage position

UP / DOWN / OPEN operation Dead
front contact input (Terminal block M3)
Horizontal position for use and storage

Operating /storage temperature /humidity

5 to 40℃ 20 to 80%RH or lower
No condensation

Storage temperature-10 to 50℃
It should be drained of internal

Calibration interval

6 Months

Power source
voltage

100 to 240V AC(Allowable ﬂuctuation range 85 to 264V AC)
Frequency：47 to 63Hz

Power consumption

Maximum 60VA

1 to 99 times or inﬁnite times

Operation in accordance with programmed pattern

Programmable manual sweep
The manual operation of the setting program

Manual pressure output
Output of arbitrary pressure
within controllable pressure range
Display

RS-232C (Dsub 9 pins)
9600 / 19200 / 38400bps SynchronousOption GP-IB (Base on IEEE488)

1 to 600 sec. with 1 sec. step

Programmable auto sweep

Operation mode

Interface

1 to 600 sec. with 1 sec. step

10 numbers

MemoryLED

Controlled pressure values 5 digits(Character height approx. 14mm)
Setting pressure values 5 digits(Character height approx. 10mm)
Setting item values 3 digits(Character height approx. 8mm)

Exhaust port: Rc1/4

Withstand voltage
Insulation resistanceDimension
Weightwater

1000V AC between power source andcasing, 1 minute
100MΩ or higher, 500V DC between
power source and casing
Approx. 212 (Ｗ) × 132 (Ｈ) × 350 (Ｄ)(Excluding convex parts)
Approx. 9kg

Operation, status, unit, and oﬀset monitors

Pressure Traceability System

Rear panel interface block①②③

Measurement Law
National standards
National Institute of Advanced Industrial
Science and Technology (AIST)④jcss【Reference pressure standard】
Deadweight tester

Jcss【Working standard】
Deadweight tester【Products with high accuracy】
⑤⑥⑦

⑧

⑨

Crystal oscillate digital pressure gauges①Pressure supply port
②Pressure output port
③GP-IB interface port (Option)④RS-232C interface port

⑤Exhaust port
⑥Remote control terminal⑦Analog output terminal⑧Power input socket⑨Main power switch＊Shown photo: PC20

5PCPressure controllers

GC
Precision digital pressure gauges

PC・2□・3□・7□

GC15・16

PC20・25
Programmable Pressure Controller

Speciﬁcations3
PC28 Pressure source unit (Option)
Supply pressure (Air)Maximum 0.7MPa (Compressed air)Output pressure

Maximum 18MPa(Deionized water, distilled water)
Ratio 1:34

Operating /storage temperature /humidity
Storage temperature

Deionized water or distilled water(Built in tank for 2 liters)

Media

Minimum operation Approx. 0.040Nm3/min.
(Supply pressure 0.55MPa)
When PC25 controls the pressure in thevicinity of 0MPa.
Maximum operation Approx. 0.096Nm3/min.
(Supply pressure 0.55MPa)
When PC25 controls the pressure in thevicinity of 8MPa.

Air consumption rate
for pump output
operation

Air consumption rate
for pump drain
operation

Approx. 0.080Nm3/min.
Drain pump pressure -50kPa

Pressure connection

Air supply port Rc1/4
Pressure output port Rc1/4
Exhaust port Rc1/4

Safety device

Release valve
Consumption pressure
Approx. 18MPa

5 to 40℃ 20 to 80%RH or lower
No condensation
5 to 50℃
For temperature less than 5℃ draining
work should be performed

Dimension

Approx. 250(Ｗ) × 350(Ｈ) × 375(Ｄ)(With no projection)

WeightApprox. 20kg

Accessories
Instruction manual

1 CopyOption
Flexible pipe

1 Pipe 2m length
Output port and pressure supply port ofPC25 connection line
Maximum operating pressure 20MPa(25℃) or lower
With R1/4 joint

OptionPanel mounting clamp (Optional specs for PC20, 25)：Clamp for mounting the panel
Rack mounting set (Optional specs for PC20, 25): Fittings for rack mounting (JIS) (Including panel mounting clamps)
Dedicated pressure source unit PC28 (For PC25 only): Water pressure supply unit driven by air pressure

PC28 Pressure source unit

Pressure source unit (PC28) Dimensions

34

排出口

Outlet port
Rc1/4
From PC25

375110(3)250Discharge
display

吐出水圧力

Water tank
2 Liters

排出水ポンプ
OFFON

Drain pump valve

高350

作動空気調整弁
低排出水バルブ
開Air valve

閉

Drain valve
作動空気供給口
0.7MPa MAX.

Discharge port
Rc1/4
To PC25

吐出口(55)

Air supply port
Rc1/46

PC20・25
Programmable Pressure Controller

Model number conﬁguration

Please specify the model number, each specs and the range for ordering.

Model

P C 2 07

Programmable Pressure Controller
Air Pressure Type①②③④

1±0.2％F.S. (Standard)

2±0.1％F.S. (High precision spec.)※Not available for the range 5kPa and below

Model number⑤⑥⑦

Product speciﬁcations①Accuracy②Pressureconnection

7③
External interface

Please specify pressure
range and unit of measure
along with correspondingordering code.

⑧⑨⑩

⑪⑫⑬

⑭

⑮

Additional speciﬁcations (Optional)

Rc1/4

0

RS-232C (Standard)

1

RS-232C + GP-IB (IEEE488)④
Pressure range

10 to 1, 2, 5kPa, ±1, 2, 5kPa

20 to 10, 20, 50kPa, ±10, 20, 50kPa

30 to 0.2, 0.5MPa

4-0.1 to 0.1, 0.2, 0.5MPa

50 to 1MPa⑧
Other additional
spec.

0Not required2

Panel mounting clamp

3

Rack mounting set⑮
Documents

0Not required

1Required(Documents available upon request)

Datasheet (Drawing / Speciﬁcations)
Instruction manual
Inspection procedure
Calibration test report (One-part one sheet)
Inspection / Traceability certiﬁcate
Calibration test report for pressure standard
Attending inspection＊When the accuracy ±0.1% is required, accuracy at negative pressure side will be ±0.2%.

Accessories
Power cable (3 Terminal) 1 piece
Instruction manual 1 piece＊Specify code "X" to refer N/A

7

PC20・25
Programmable Pressure Controller

Model number conﬁguration

Please specify the model number, each specs and the range for ordering.

ModelP C 2 57

Programmable Pressure Controller
Water Pressure Type①②③④

1±0.2％F.S.

2±0.1％F.S. (High precision spec.)

Model number⑤⑥⑦

Product speciﬁcations①Accuracy②Pressureconnection

7③
External interface

Please specify pressure
range and unit of measure
along with correspondingordering code.

⑧⑨⑩⑪⑫⑬⑭⑮Additional speciﬁcations (Optional)

Rc1/4

0RS-232C (Standard)

1

RS-232C + GP-IB④
Pressure range

Range

Controllable range

10 to 2MPa

0.5 to 2MPa

20 to 5MPa

0.5 to 5MPa

30 to 10MPa

0.5 to 10MPa

40 to 20MPa

0.5 to 15MPa⑧
Other additional
spec.

0Not required2

Panel mounting clamp

3

Rack mounting set⑮
Documents0

Not required

1Required(Documents available upon request)

Datasheet (Drawing / Speciﬁcations)
Instruction manual
Inspection procedure
Calibration test report (One-part one sheet)
Inspection / Traceability certiﬁcate
Calibration test report for pressure standard
Attending inspection

Accessories
Power cable (3 Terminal) 1 piece
Instruction manual 1 piece＊Specify code "X" to refer N/AModelP C 2 8
Dedicated Pressure Source Unit ①for PC25
Model number

②

③④

⑤

⑥⑦Product speciﬁcations⑧
Other additional
spec.
⑮
Documents⑧⑨⑩⑪⑫⑬⑭⑮

Additional speciﬁcations (Optional)0

Not required

1Flexible pipe0

Not required

1

Required(Documents available upon request)

Datasheet (Drawing / Speciﬁcations)
Instruction manual＊Specify code "X" to refer N/A

8