Panasonic DP240E, DP241E, DP242E User guide

INSTRUCTION
MANUAL

LED Display・Digital Pressure Sensor

DP2 Series

For use outside Japan

Thank you very much for purchasing Panasinic products.
Read this Instruction Manual carefully and thoroughly for
the correct and optimum use of this product. Kindly keep
this manual in a convenient place for quick reference.

MJE-DP2 No.0048-50V

WARNING

Never use this product as a sensing device for personnel protection.

●

In case of using sensing devices for personnel protection, use products which meet laws and standards, such as

●

OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.
In case this sensor is used within Japan, SI unit must be used since use of pressure units in Japan is restricted to SI units.

●

1

SPECIFICATIONS

Vacuum pressure

Type

Asian
North American (Note)

Model No.

European

Item
Type of pressure
Rated pressure range
Set pressure range -0.050 to 1.000MPa-5.0 to 100.0kPa5.1 to -101.3kPa
Pressure withstandability
Applicable fluid Non-corrosive gas
Selectable units kgf/cm2, bar, psikgf/cm2, bar, psi, mmHg, inHg
Supply voltage
Current consumption

Comparative outputs

Comparative Output 1
Comparative Output 2

Output modes

Short-circuit protection

Analog voltage
output

Displayable pressure range

Comparative Output 1

Operation
indicators

Comparative Output 2

Ambient temperature

Overvoltage category

Temperature characteristics

Asian Standard ･ Flat ･ IP67 types: Rc (PT)

Pressure

North American

port

European Flat ･ IP67 types: G (PF)

Material

Note:

Model Nos. of North American standard type having the suffix '-P' are PNP output type.

2

CAUTIONS

Standard Flat

DP2-20

DP2-20F(-P)

－

Asian
North American (Standard NPN output, Flat, IP67 types)

NPN open-collector transistor
・Maximum sink current: 100mA

Applied voltage: 30V DC or less (between comparative output and 0V)

・
・Residual voltage: 1V or less (at 100mA sink current)

Equipped with 4 types of modes: hysteresis mode, window comparator mode, dual output mode, automatic sensitivity
setting mode (selectable by key operation)

Front case: ABS, Rear case: PPS (glass fiber reinforced), Display surface: Acrylic
Pressure port attachment: Die-cast zinc alloy [Light weight type: POM (glass fiber reinforced), pressure port is brass (nickel plated)]
Front cover (IP67 type only): Polycarbonate

Standard type: 95g approx., Flat type: 120g approx., IP67 type: 370g approx., Light weight type: 70g approx.Weight

DP2 series is designed for use with non-corrosive gas.
It cannot be used for liquid or corrosive gas.

T

his product has been developed / produced for

●

industrial use only.

●

Use within the rated pressure range.
Do not apply pressure exceeding the pressure

●

withstandability value. The diaphragm will get damaged
and correct operation shall not be maintained.
Make sure to carry out the wiring in the power supply

●

off condition.

●

Take care that wrong wiring will damage the sensor.

●

Verify that the supply voltage variation is within the rating.
If power is supplied from a commercial switching

●

regulator, ensure that the frame ground (F.G.) terminal
of the power supply is connected to an actual ground.

●

In case noise generating equipment (switching
regulator, inverter motor, etc.) is used in the vicinity of
this sensor, connect the frame ground (F.G.) terminal
of the equipment to an actual ground

-101kPa type

－

DP2-40N DP2-60N
DP2-40E DP2-60E

0.4V or less (at 16mA sink current)

1 digit (However, variable in hysteresis mode and 2 digits when using psi unit)Hysteresis

Output voltage: 1 to 5V (over rated pressure range)
Zero-point: within 1V ±5% F.S.
Span: within 4V ±5% F.S.
Linearity: within ±1% F.S.
Output impedance: 1kΩ approx.

Standard ･ Flat ･ Light weight types: IP40 (IEC), IP67 type: IP67 (IEC)Protection

-10 to +50℃ (No dew condensation or icing allowed), Storage: -10 to +60℃

Over ambient temperature range -10 to +50℃: within ±1% F.S. of detected pressure at 20℃

Standard type: NPTF 1／8female thread, Flat ･ IP67 types: NPT 1／8 female thread

0.15mm2 5-core oil resistant cabtyre cable, 2m long (IP67 type: 5m long)Cable

Hexagon-socket-head plug for pressure port: 1 No. (Standard type only), Pressure unit label: 1 No.Accessories

Light weight

IP67 Standard StandardFlat IP67 Flat IP67

DP2-60 DP2-80 DP2-21 DP2-41 DP2-61 DP2-22 DP2-42 DP2-62

3

－

DP2-21F(-P)

－ －

12 to 24V DC %　Ripple P-P 10% or less

Within ±0.2% F.S. ±1 digitRepeatability

1

／2 digit red LED display (Sampling rate: 4 times/sec. approx.)Display

LED bar display in steps of 10% F.S. approx.Analog bar display

Orange LED (lights up when Comparative Output 1 is ON)

Green LED (lights up when Comparative Output 2 is ON)

35 to 85% RH, Storage: 35 to 85% RHAmbient humidity

DP2-41N DP2-61N
DP2-41E DP2-61E

Gauge pressure

+10

-15

50mA or less

2.5ms or lessResponse time
Incorporated

Output voltage (V)

2Pollution degree
II

2,000m or lessUsable altitude

1

／8 female thread, Light weight type: M5 female thread

Do not use during the initial transient time (0.5 sec.)

●

after the power supply is switched on.
Do not run the wires together with high-voltage lines or

●

power lines or put them in the same raceway. This can
cause malfunction due to induction.

●

This product is suitable for indoor use only.
Avoid use of standard type, flat type and light weight type

●

of sensor in places where steam and dust is excessive.
Take care that the sensor does not come in contact

●

with water, oil, grease, or organic solvents, such as,
thinner, etc.
Do not insert wires, etc, into the pressure port. The

●

diaphragm will get damaged and correct operation
shall not be maintained.

●

Do not operate the keys with pointed or sharp objects.

●

Make sure that stress by forcible bend or pulling is not
applied directly to the sensor cable joint.

●

Extension up to total 100m is possible with 0.3mm
more, cable. However, in case of using this product as
a CE Marking conformity product, the power wire
connected to this product must be within 10m.

Positive pressure

DP2-22F(-P)

<

North American (Standard PNP output type), European

PNP open-collector transistor

・Maximum source current: 100mA
・Applied voltage: 30V DC or less

・

Residual voltage: 2V or less (at 100mA source current)

5

1

Pressure

1

／8 female thread

(between comparative output and +V)

1MPa type100kPa type

DP2-42N DP2-62N

－

DP2-42E DP2-62E

0 to 1.000MPa0 to 100.0kPa0 to -101.3kPa

1.47MPa490kPa

High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)

-0.050 to 1.000MPa-5.0 to 100.0kPa5.1 to -101.3kPa

2

>

, or

3

SETTING OF PRESSURE LEAD
DIRECTION AND PIPING

Standard type

●

Setting of pressure lead direction

・

The pressure lead
direction can be changed
by dismantling the
pressure port attachment
and changing the
mounting direction. The
tightening torque of the
hexagon-socket-head
bolt (length 9mm or less)
should be 0.29N･m or
less.

Please make sure to close any unused pressure port with

Note:

Pressure port
attachment

Hexagon-socket­head plug

the hexagon-socket-head plug supplied as accessory.

●

Piping

・

When connecting a
hexagon-socket-head plug
or coupling to the pressure
port, hold the hexagonal
part of the pressure port
with a 12mm spanner and
make sure that the
tightening torque is 9.8N･m or less. Also, in order to
prevent any leakage, wind a sealing tape on the
coupling when connecting.
However, sealing tape is not required for North
American type using NPTF
is required if NPT

1

／8 coupling is used.)

Flat type, Light weight type

●

Setting of pressure lead direction

・

The pressure lead direction can be changed by dismantling
the pressure port attachment and changing the mounting
direction. The tightening torque of the hexagon-socket-head
bolt (length 9mm or less) should be 0.29N･m or less.

Pressure port attachment

Main body

Pressure port

●

Piping

・

When connecting a coupling
to the pressure port, hold the
pressure port attachment
with a 16mm (Light weight
type: 10mm) spanner and
make sure that the tightening
torque is 9.8N･m or less
(Light weight type: 1.47N･m
or less). Also, in order to prevent any leakage, wind a
sealing tape on the coupling when connecting.

IP67 type

●

Piping for pressure measurement inlet port

・

When connecting a coupling to the pressure measurement
inlet port, hold the pressure port attachment with a spanner
and make sure that the tightening torque is 9.8N･m or less.
Also, in order to prevent any leakage, wind a sealing
tape on the coupling when connecting.

●

Piping for atmospheric pressure inlet port

・

If there is a possibility of
water entering into the
sensor enclosure through
the atmospheric pressure
inlet port, connect a tube
to the atmospheric
pressure inlet port through
a M5 coupling and extend
the other end of the tube
to a safe place. In this
case, ensure that this end
of the tube does not get
clogged.

●

Fitting of front cover

・

Insert the bosses on the front cover into the guide
holes at the bottom of the pressure port attachment,
and push in the
direction of the

Hook

arrow to fit the
hook.
When removing
the front cover,
release the hook
first.

Main body

Hexagon­socket­head bolts

Pressure
ports

12mm spanner

1

／8 coupling. (Sealing tape

Hexagon-socket­head bolts

2-φ4.3mm mounting holes

16mm
(light weight type: 10mm)
spanner

Safe place,
where there is no
exposure to water

Atmospheric
pressure inlet port

M5 coupling

Tube

Pressure measurement
inlet port

Guide holes

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

4

MOUNTING OF STANDARD
TYPE SENSOR

●

A sensor mounting bracket MS-DPX and MS-DPX-4
(optional) may be used.
When mounting the sensor with the sensor mounting
bracket, etc., the tightening torque should be 1.2N･m
or less.

<MS-DPX>

<MS-DPX-4>

Sensor mounting
bracket
MS-DPX-4 (optional)

Note: In case mounting brackets or screws other than the

Note:

Note:

M4 (length 6mm) pan head screw
(attached with MS-DPX)

Spring washer
(attached with MS-DPX)

Sensor mounting bracket
MS-DPX (optional)

Spring washer
(attached with MS-DPX-4)

M4 (length 6mm) pan head screw
(attached with MS-DPX-4)

sensor mounting bracket shown in the figure above
are used, the length of the screws inserted into the
pressure port attachment should be 5mm or less. If
the length of the screws is longer than 5mm, the
sensor may be damaged.

●

Panel mounting bracket MS-DPX-2 (optional) and a front
protection cover DPX-04 (optional) are also available.

Front protection cover

DPX-04 (optional)

5

I/O CIRCUIT DIAGRAM

●

NPN output type

D

1kΩ

ZD1

Tr1

ZD2

Sensor circuit

ZD3

Tr2

DP2-20

–101.3kPa

OUT2OUT1

0-ADJ

MODE

Panel mounting bracket
MS-DPX-2 (optional)
(Suitable for 1 to 3.2mm thick panel)

Color code

(Brown) +V

(Gray) Analog
voltage output

(Note)

(Black) Comparative Output 1

(White) Comparative Output 2

(Blue) 0V

100mA max.

100mA max.

Load

Load

Users’ circuitInternal circuit

+

-

12 to 24V

+10

　 %

-15

The analog voltage output is not incorporated with a
short-circuit protection circuit. Do not directly connect
a power supply or a capacitive load. When using the
analog voltage output, take care to connect external
equipment of proper input impedance.
Also, when a cable extension is used, voltage drop
due to cable resistance should be taken into account.

Symbols...D: Reverse supply polarity protection diode

●

D1, ZD2, ZD3: Surge absorption zener diode

Z

r1, Tr2: NPN output transistor

T

PNP output type

Color code

D

Tr1

ZD1

Tr2

1kΩ

Sensor circuit

(Brown) +V

(Black) Comparative Output 1

ZD2

(White) Comparative Output 2

(Gray) Analog
voltage output (Note)

ZD3

(Blue) 0V

Users’ circuitInternal circuit

100mA max.

100mA max.

Load

Load

+

-

12 to 24V

+10

　 %

-15

The analog voltage output is not incorporated with a
short-circuit protection circuit. Do not directly connect
a power supply or a capacitive load. When using the
analog voltage output, take care to connect external
equipment of proper input impedance.
Also, when a cable extension is used, voltage drop
due to cable resistance should be taken into account.

Symbols...D: Reverse supply polarity protection diode

D1, ZD2, ZD3: Surge absorption zener diode

Z

r1, Tr2: PNP output transistor

T

6

FUNCTIONAL DESCRIPTION

①

DP2-20

-101.3kPa

②

OUT2OUT1

0-ADJ

MODE

④

⑤

Description Function

DC

DC

1

／2 digit LED

3

①

display (Red)
Comparative Output 1

②

operation indicator
(Orange)

Comparative Output 2

③

operation indicator
(Green)

Increment key

④

( )

Decrement key

⑤

( )

Mode selection key

⑥

MODE

( )

7

ERROR MESSAGES

When an error occurs, take the following corrective action.

●

Error message

8

ANALOG BAR DISPLAY

Pressure changes are displayed in an analog fashion by using LED bars.

●

Hence, any sudden changes in pressure can be detected at a glance.
The analog bar display shows the measured pressure,

●

irrespective of the pressure unit, in steps of 10% F.S. approx.

Please refer to ' SETTING ② Initial setting' for the

Displays measured pressure, settings,
error messages and key-protect status.

Lights up when Comparative Output 1 is ON.

Lights up when Comparative Output 2 is ON.

In the initial setting mode, pressing

・

the key changes the settable digit.
In the Set Value 1, 2 modes,

・

pressing the key changes the set
value to the high pressure side in
case of positive pressure type sensor
and to the high vacuum side in case
of vacuum pressure type sensor.
In the sensing mode, if the key is

・

pressed continuously for 4 sec. or more,
the display shows peak hold value.

In the initial setting mode, pressing

・

the key changes the set conditions.
In the Set Value 1, 2 modes,

・

pressing the key changes the set
value to the low pressure side in
case of positive pressure type sensor
and to the low vacuum side in case
of vacuum pressure type sensor.
In the sensing mode, if the key is

・

pressed continuously for 4 sec. or more,
the display shows bottom hold value.
Pressing the key changes the selected

・

mode to sensing mode, Set Value 1 (P1)
set mode and Set Value 2 (P2) set mode.
In the sensing mode, if the key is

・

pressed continuously for about 3 sec.,
key-protect can be set/released.
In the sensing mode, if the mode selection

・

key is pressed while pressing the increment
key ( ), the initial setting mode is obtained.

Cause

Overcurrent due to
short-circuit.

Pressure is being
applied during
zero-point adjustment.

Applied pressure exceeds
the upper limit of
displayable pressure range.

Positive

pressure

type

Applied pressure exceeds
the lower limit of
displayable pressure range.

Vacuum

pressure

type

Applied pressure exceeds
the lower limit of
displayable pressure range.

Positive

pressure

type

Applied pressure exceeds
the upper limit of
displayable pressure range.

pressure

type

Vacuum

11

procedure to change to analog bar display.

Analog bar display for positive pressure type sensor

Atm. pressure condition

DP2-21

100kPa

OUT2OUT1

MODE

0-ADJ

DP2-21

High pressure condition

100kPa

OUT2OUT1

MODE

0-ADJ

Analog bar display for vacuum pressure type sensor

Atm. pressure condition

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

DP2-20

High vacuum condition

-101.3kPa

OUT2OUT1

MODE

0-ADJ

③

⑥

In the sensing mode, if both the keys are pressed

simultaneously, zero-point adjustment is done.

Corrective action

Switch off the power
supply and check the
load.

Applied pressure at the pressure
port should be brought to
atmospheric pressure and zero-point
adjustment should be done again.

Applied pressure should
be brought within the
rated pressure range.

DP2-21

100kPa

OUT2OUT1

MODE

0-ADJ

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

9

OUTPUT MODES & THEIR
CHARACTERISTICS

Hysteresis mode ( )

● The common hysteresis of the comparative outputs

can be set, as desired, with the set values.

ON

Comparative
Output 1

OFF

ON

Comparative
Output 2

OFF

0

Set Value 1 (P1) Set Value 2 (P2)

Window comparator mode ( )

The comparative outputs can be turned ON or OFF by a pressure

●

which is within the pressure range set by Set Value 1 and Set Value 2.

ON
Comparative
Output 1

OFF

ON
Comparative
Output 2

OFF

0

Set Value 1 (P1)

When operating in window comparator mode ( ) Set
Value 1 (P1) and Set Value 2 (P2) should be set with a
difference of 3 digits or more. However, when the
pressure unit is set to 'psi' ( ), the difference should be 6
digits or more.

Dual output mode ( )

The outputs can be put to different use such as detection of

●

different kinds of objects, control function, alarm function etc.

Hysteresis

ON
Comparative
Output 1

OFF

ON
Comparative
Output 2

OFF

0

Set Value 1 (P1) Set Value 2 (P2)

Automatic sensitivity setting mode ( )

Using actual objects, if the pressure values for OK objects

●

and NG objects are input, then the sensor is automatically
set to the optimum pressure value (mid-value).

ON
Comparative
Output 1

OFF

ON
Comparative
Output 2

OFF

0

Set Value 1 (P1) Set Value 2 (P2)

10

PRESSURE UNITS

The pressure unit can be selected as per customer's requirement.

●

In case of positive pressure type, the pressure unit can be

●

changed from International System of Units (SI) 'kPa' or 'MPa'

2

', 'bar' or 'psi'. In case of vacuum pressure type, the

to 'kgf/cm
pressure unit can be changed from International System of
Units (SI) 'kPa' to 'kgf/cm

When the pressure unit is changed, the set values

・

and the measured value are automatically converted.
Please refer to ' SETTING ② Initial setting' for

・

the procedure to change the pressure unit.

inHg

mmHg psi bar

Note:

'MPa' in case of DP2-22□, DP2-42□ and DP2-62□.

Hysteresis

High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)

Hysteresis Hysteresis

Set Value 2 (P2)

High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)

Hysteresis: 1 digit

2 digits when using
psi unit

High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)

Hysteresis

Set Value 3 (P3)

2

', 'bar', 'psi', 'mmHg' or 'inHg'.

High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)

11

International System
of Units (SI)

kPa (Note)

: Positive pressure type: Vacuum pressure type

Hysteresis:

1 digit or more
2 digits or more
when using psi unit

Hysteresis: 1 digit

2 digits when using
psi unit

Hysteresis: 1 digit

2 digits when using
psi unit

kgf/cm

2

11

SETTING

●●If key-protect has been set, make sure to release

key-protect before operating the keys. (Please refer to

15

' KEY-PROTECT FUNCTION' for the procedure.)
The conditions which are set are stored in an EEPROM.
Please note that the EEPROM has a life span and its
guaranteed life is 100,000 write operation cycles.

Setting procedure

①

Zero-point
adjustment

Adjust
zero-point

②

Initial
setting

Set [Display],
[Output mode],
and [Unit]

③

Pressure
value setting

Enter
Set Value 1 (P1)
Set Value 2 (P2)
Set Value 3 (P3)

Measurement

Commence
measurement
on completion
of setting

① Zero-point adjustment

● The displayed pressure when the pressure port is left

open is adjusted to zero.

Set to sensing mode

DP2-20

-101.3kPa

・The sensor will automatically enter the

sensing mode when power is supplied.

OUT2OUT1

The figure on the left shows the display

MODE

0-ADJ

when the pressure unit and display are set
to 'kPa' and 'digital display', respectively.

Perform zero-point adjustment

DP2-20

-101.3kPa

Let the pressure port be at atmospheric pressure (i.e.,

・

no applied pressure condition), and press, simultane-

OUT2OUT1

ously, the increment and decrement keys continuously.

MODE

0-ADJ

is displayed and, when the fingers are

・

released, zero-point adjustment is completed
and the sensor returns to the sensing mode.

DP2-20

-101.3kPa

0-ADJ

If pressure has been applied during zero-point

・

adjustment, is displayed when

OUT2OUT1

the keys are pressed. Bring the applied

MODE

pressure to atmospheric pressure (i.e., no
applied pressure condition) and carry out the
zero-point adjustment once again.

② Initial setting

● Pressure [Unit], [Display] and [Output mode] of the

comparative outputs are set.

Set to initial setting mode

DP2-20

-101.3kPa

In the sensing mode, press key while

・

pressing key.

OUT2OUT1

MODE

0-ADJ

Initial setting is displayed.

・

If sensor is being used for the first

・

time, is displayed.

MODE

Set initial conditions

DP2-20

-101.3kPa

The settable digit blinks.

・

The settable digit changes when key

・

OUT2OUT1

is pressed.

MODE

0-ADJ

DP2-20

-101.3kPa

Change the setting of each digit as

・

desired.

OUT2OUT1

The setting is changed when key is

・

MODE

0-ADJ

pressed.

Change with key.

3rd digit 2nd digit

1st digit

Unit Output mode Display

: kPa or
MPa

: kgf/cm

: bar

Positive

pressure type

: psi

: mmHg

pressure type

Vacuum

: inHg

2

: Hysteresis
mode

: Window
comparator
mode

: Dual output
mode

: Automatic
sensitivity
setting mode

: Digital
display

: Analog
bar
display

Set to sensing mode

DP2-20

-101.3kPa

・ Press key.

OUT2OUT1

MODE

0-ADJ

MODE

The sensor returns to sensing mode

・

after the initial conditions have been set.
Since the initial conditions which

・

have been set are stored in an
EEPROM, they are not erased even
if the power supply is switched off.
The figure on the left shows the display

・

when the unit and display are set to
'kPa' and 'digital display', respectively.

③ Setting of pressure values

For the case when output mode is set to either the hysteresis
mode ( ), window comparator mode ( ) or dual output mode ( ).

● [Set Value 1 (P1)] and [Set Value 2 (P2)] of the

comparative outputs are set.

The setting of Set Value 2 (P2) with respect to Set Value 1

・

(P1) can only be towards the high pressure side in case of
the positive pressure type sensor and only towards the high
vacuum side in case of the vacuum pressure type sensor.

・

Set Value 1 (P1) and Set Value 2 (P2) can be made common
for all the output modes. However, when a changeover is
made to the automatic sensitivity setting mode, since Set
Value 3 (P3) has not been set, make sure to carry out the
pressure value settings for the automatic sensitivity mode.

Set to Set Value 1 (P1) set mode

DP2-20

-101.3kPa

・In the sensing mode, press key.
・・and Set Value 1 (P1) which

OUT2OUT1

MODE

0-ADJ

is being set are displayed
alternately.

MODE

The figure on the left shows the

Displayed
alternately

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

display of a vacuum pressure
type sensor when the pressure
unit has been set to 'kPa'.

Enter Set Value 1 (P1)

DP2-20

-101.3kPa

・

Enter using key and key.

・

In case of the positive pressure type

OUT2OUT1

sensor, if key is pressed once the set

MODE

0-ADJ

value changes towards the high

Displayed
alternately

pressure side by 1 digit and if key is

Displayed
alternately

DP2-20

0-ADJ

pressed once the set value changes
towards the low pressure side by 1 digit.
In case of the vacuum pressure type

-101.3kPa

sensor, if key is pressed once the
set value changes towards the high

OUT2OUT1

vacuum side by 1 digit and if key is

MODE

pressed once the set value changes
towards the low vacuum side by 1 digit.

・

If key or key is pressed continu­ously, the set value changes quickly.

If the set pressure range is exceeded,
either (upper limit exceeded) or

(lower limit exceeded) is displayed.

Displayed
alternately

Set to Set Value 2 (P2) set mode

DP2-20

-101.3kPa

In the Set Value 1 (P1) set mode, press

・

MODE

key.

and Set Value 2 (P2) which is

being set are displayed alternately.

Displayed
alternately

DP2-20

OUT2OUT1

MODE

0-ADJ

-101.3kPa

OUT2OUT1

MODE

0-ADJ

Enter Set Value 2 (P2)

DP2-20

Displayed
alternately

DP2-20

-101.3kPa

・Using key and key, enter in a

manner similar to that for entering Set

OUT2OUT1

Value 1 (P1).

MODE

0-ADJ

0-ADJ

If the set pressure range is exceeded,
either (upper limit exceeded) or

(lower limit exceeded) is displayed.

-101.3kPa

OUT2OUT1

MODE

Displayed
alternately

If the output mode has been set to the window
comparator mode ( ) in the initial setting mode, Set
Value 1 (P1) and Set Value 2 (P2) should be set with a
difference of 3 digits or more. However, when unit is set
to 'psi', the difference should be 6 digits or more.

Displayed
alternately

Set to sensing mode

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

MODE

・Press key.

・・The sensor returns to sensing

mode after Set Value 1 (P1) and
Set Value 2 (P2) have been set.
Since the values which have been
set are stored in an EEPROM,
they are not erased even if the
power supply is switched off.

For the case when the output mode is set to automatic
sensitivity setting mode ( )

● Comparative outputs' [Set Value 1 (P1)], [Set Value 2

(P2)] and [Set Value 3 (P3)] are set.

The setting of Set Value 2 (P2) with respect to Set Value 1

・

(P1) can only be towards the high pressure side in case of
the positive pressure type sensor and only towards the high
vacuum side in case of the vacuum pressure type sensor.

・

Set Value 3 (P3) is automatically set to the mid-value of Set
Value 1 (P1) and Set Value 2 (P2). However, if Set Value 1 (P1)
is set to a value on the vacuum pressure side for a positive
pressure type sensor or to the positive pressure side for a
vacuum pressure type sensor, Set Value 3 (P3) is automatically
set to the mid-value of 'zero' (atmospheric pressure) and Set
Value 2 (P2). Further, if both, Set Value 1 (P1) and Set Value 2
(P2) are set to a value on the vacuum pressure side for a
positive pressure type sensor or to the positive pressure side
for a vacuum pressure type sensor, Set Value 3 (P3) is
automatically set to 'zero' (atmospheric pressure).

・

The automatically set Set Value 3 (P3) can be changed manually.

・

Since display of error messages is not possible during pressure
value setting in the automatic sensitivity setting mode, make
sure that the sensor is used within the rated pressure range.

Set to Set Value 1 (P1) set mode

DP2-20

-101.3kPa

・In the sensing mode, press key.
・・and Set Value 1 (P1) which

OUT2OUT1

MODE

0-ADJ

is being set are displayed
alternately.

MODE

The figure on the left shows the
display of a vacuum pressure
type sensor when the pressure

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

unit has been set to 'kPa'.

Enter Set Value 1 (P1)

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

Within the required permissible

・

pressure range, having created a
pressure state which is nearest to the
atmospheric pressure, press key.

The pressure value at the time of

・

pressing key is entered as Set
Value 1 (P1). Set Value 1 (P1) and

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

are displayed alternately.

・

If the set pressure range is
exceeded, either (upper limit
exceeded) or (lower limit
exceeded) are displayed and Set
Value 1 (P1) is set automatically
to the upper or lower limit of the
set pressure range.

・

The setting of Set Value 1 (P1)
can be repeated several times in
the Set Value 1 (P1) set mode.

Set to Set Value 2 (P2) set mode

DP2-20

-101.3kPa

In the Set Value 1 (P1) set mode, press

・

MODE

key.

and Set Value 2 (P2) which is

being set are displayed alternately.

DP2-20

OUT2OUT1

MODE

0-ADJ

-101.3kPa

OUT2OUT1

MODE

0-ADJ

Enter Set Value 2 (P2)

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

Within the required permissible pressure

・

range, having created a pressure state
which is nearest to the high pressure
end (for a positive pressure type sensor)
or the high vacuum end (for a vacuum
pressure type sensor), press key.

The pressure value at the time of

・

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

pressing key is entered as Set
Value 2 (P2). Set Value 2 (P2) and

are displayed alternately.

If the set pressure range is

・

exceeded, either (upper limit
exceeded) or (lower limit
exceeded) are displayed and Set
Value 2 (P2) is set automatically
to the upper or lower limit of the
set pressure range.
The setting of Set Value 2 (P2)

・

can be repeated several times in
the Set Value 2 (P2) set mode.

Set to Set Value 3 (P3) set mode

DP2-20

-101.3kPa

In the Set Value 2 (P2) set mode, press

・

MODE

key.

and the automatically set Set Value

・

3 (P3) are displayed alternately.
In case

・

Set Value 1 (P1) = -50.0kPa
Set Value 2 (P2) = -100.0kPa
then
Set Value 3 (P3) =

-50.0+(-100.0)
2

=-

Digits smaller than the displayed
digits are discarded.

75.0kPa

Displayed
alternately

DP2-20

OUT2OUT1

MODE

0-ADJ

-101.3kPa

OUT2OUT1

MODE

0-ADJ

In case Set Value 3 (P3) is to be changed

The automatically set Set Value 3 (P3) can be manually
changed to a value between Set Value 1 (P1) and Set Value 2
(P2). However Set Value 3 (P3) cannot be set to a value on the
vacuum pressure side for a positive pressure type sensor or to
the positive pressure side for a vacuum pressure type sensor.

Hysteresis

Changeable
range

Set Value 1 (P1) Set Value 2 (P2)

Set Value 3 (P3)

-101.3kPa

・

Enter using key and key.

・

In case of a positive pressure type

OUT2OUT1

sensor, if key is pressed once, the

MODE

set value changes towards the high

Hysteresis: 1 digit

2 digits when psi
unit is used

High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)

Comparative
Output 1

OFF

Comparative
Output 2

OFF

DP2-20

ON

ON

0

0-ADJ

pressure side by 1 digit and if key is

Displayed
alternately

DP2-20

0-ADJ

pressed once, the set value changes
towards the low pressure side by 1 digit.
In case of a vacuum pressure type

-101.3kPa

sensor, if key is pressed once the
set value changes towards the high

OUT2OUT1

vacuum side by 1 digit and if key is

MODE

pressed once the set value changes
towards the low vacuum side by 1 digit.

・

If key or key is pressed continu­ously, the set value changes quickly.

If the set pressure range is exceeded,
either (upper limit exceeded) or

(lower limit exceeded) is displayed.

Set to sensing mode

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

MODE

・Press key.

The sensor returns to the sensing mode

・

after Set Value 1 (P1), Set Value 2 (P2)
and Set Value 3 (P3) have been set.
Since the values which have been

・

set are stored in an EEPROM,
they are not erased even if the
power supply is switched off.

12

PROCEDURE FOR CHECKING SET VALUES

● The conditions which have been set in the initial

setting and the pressure settings can be checked by
the following procedure.

Procedure to check initial conditions

Set to sensing mode

MODE

Press key
while pressing

key.

Sensor enters initial setting mode

Initial conditions which have been set
are displayed and can be checked.

MODE

Press key.

Sensor returns to sensing mode

Procedure to check set values

Set to sensing mode

MODE

Press key.

Sensor enters Set Value 1 (P1) set mode

Set Value 1 (P1) which has been set
is displayed and can be checked.

MODE

Press key.

Sensor enters Set Value 2 (P2) set mode

Set Value 2 (P2) which has been set
is displayed and can be checked.

MODE

Press key.

In case of auto-matic
sensitivity setting
mode only

Sensor enters Set Value 3 (P3) set mode

Set Value 3 (P3) which has been set
is displayed and can be checked.

MODE

Press key.

Sensor returns to sensing mode

Please note that if any key, except key, is pressed in

MODE

any setting mode, the set conditions shall get changed.

13

CONVERSION OF PRESSURE UNITS

●

In the DP2 series, the conversion to different units is automatically done on changing the setting of the pressure unit.
However, this conversion can also be obtained by multiplying the values by the coefficients given in the following table.

Conversion procedure

・

For example, if 2kPa is to be expressed in kgf/cm2, since 1kPa=1.01972×10-2kgf/cm2, 2kPa becomes 2×1.01972×10-2
≒0.020kgf/cm

2

Conversion table for pressure units

kPa MPa kgf/cm2 bar

1kPa

1MPa

1kgf/cm

1bar

1psi

1mmHg

(1Torr)

1inHg

1atm

14

PEAK HOLD & BOTTOM HOLD FUNCTIONS

Peak hold and bottom hold functions enable the display

●

of the peak value (maximum pressure value in case of

1 1×10

3

1×10

2

9.80665×10

2

1×10

6.89473

1.33322×10-11.33322×10-41.35951×10-31.33322×10-31.93368×10

3.3864 3.3864×10

1.01325×1021.01325×10

-3

1.01972×10-21×10-21.45038×10

1 1.01972×10 1×10

-2

9.80665×10

1×

10-1

1

9.80665×10-11.42234×10

1.01972 1 1.45038×10

6.89473×10-37.03065×10-26.89473×10

-3

3.4531×10-23.3864×10

-1

1.03323 1.01325 1.46960×10

the positive pressure type sensor and maximum vacuum
pressure value in case of the vacuum pressure type
sensor) and the bottom value (minimum pressure value
in case of the positive pressure type sensor and
minimum vacuum pressure value in case of the vacuum
pressure type sensor) of the varying measured pressure.
These functions are convenient for finding the

●

pressure variation range or for determining the
reference for pressure settings.

・・Please note that the peak value and the bottom value

data is erased when it is no longer displayed.
The response time of the comparative outputs becomes
slower during the peak hold and bottom hold display.

Peak hold display

Initiating peak hold display

DP2-20

-101.3kPa

・In the sensing mode, keep key

pressed until is displayed. (4 sec.

OUT2OUT1

approx.) When the finger is released

MODE

after is displayed, the peak value
and are displayed alternately.

If the applied pressure exceeds the

・

displayable pressure range, error

-101.3kPa

message ( or ) and

are displayed alternately. In this

case, bring back the applied pressure

OUT2OUT1

to within the rated pressure range.

MODE

The figure on the left shows the

・

display of a vacuum type sensor when

Displayed
alternately

0-ADJ

DP2-20

0-ADJ

the pressure unit has been set to 'kPa'.

Ending peak hold display

DP2-20

-101.3kPa

・Press key.

(Sensor returns to sensing mode.)

OUT2OUT1

MODE

0-ADJ

Bottom hold display

Initiating bottom hold display

DP2-20

-101.3kPa

・

In the sensing mode, keep key
pressed until is displayed. (4 sec.

OUT2OUT1

approx.) When the finger is released

MODE

Displayed
alternately

0-ADJ

DP2-20

0-ADJ

after is displayed, the bottom value
and are displayed alternately.

If the applied pressure exceeds the

・

displayable pressure range, error
message ( or ) and

-101.3kPa

OUT2OUT1

MODE

are displayed alternately. In this
case, bring back the applied pressure
to within the rated pressure range.
The figure on the left shows the

・

display of a vacuum type sensor when
the pressure unit has been set to 'kPa'.

1.45038×1027.50062×1030.2953×10

-2

1 5.17147×10 2.036

-2

0.4912 2.5400×10 1 3.342×10

15

KEY-PROTECT FUNCTION

● Key-protect is a function which prevents any

unintentional change in the conditions which have
been entered in each setting mode by making the
sensor not to respond to the key operations.

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

・・Since the key-protect information is stored in an

EEPROM, it is not erased even if the power supply
is switched off.
Please take care to remember if the key-protect
function has been set.

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

When the keys are to be operated, make sure that
key-protect is released.

16

LABEL FOR CHANGE IN
PRESSURE UNIT

● When a pressure unit other than 'kPa' or 'MPa' has

been selected in the initial setting mode, the label
(supplied as accessory) which corresponds to the
selected unit should be stuck at the position shown
in the figure below.

Pressure unit label (accessory)

－101.3kPa用

－1.033kgf/cm

－14.70psi

－1.013bar

－760mmHg

－29.9inHg

圧力センサ用　単位切り換え銘板

17

INTENDED PRODUCTS FOR
CE MARKING

●

The models listed under ' SPECIFI-CATIONS'
come with CE Marking.
As for all other models, please contact our office.

Contact for CE

●

Panasonic Marketing Europe GmbH Panasonic
Testing Center

Winsbergring 15, 22525 Hamburg,Germany

mmHg

(Torr)

-1

7.50062 0.2953

inHgpsi atm

3

7.35559×1022.8959×10

7.50062×1022.953×10

-2

1 3.9370×10

-2

7.60000×1022.9921×10 1

Setting of key-protect

In the sensing mode, press key

・

continuously for about 3 sec. and release
it immediately when is displayed.

Key-protect is set and the sensor
returns to the sensing mode.

Release of key-protect

・

In the sensing mode, press key
continuously for about 3 sec. and release
it immediately when is displayed.

Key-protect is released and the
sensor returns to the sensing mode.

2

100kPa用

1.020kgf/cm

14.50psi

1.000bar

2

1MPa用

10.20kgf/cm

145.0psi

10.00bar

N2L58

2

Stick the pressure
unit label at the
position shown.

1

9.86923×10

9.86923

9.67841×10

9.86923×10

6.80457×10

1.31579×10

DP2-20

0-ADJ

MODE

MODE

–101.3kPa

Ending bottom hold display

DP2-20

-101.3kPa

OUT2OUT1

MODE

0-ADJ

・Press key.

(Sensor returns to sensing mode.)

http://panasonic.net/id/pidsx/global

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2431-1 Ushiyama-cho, Kasugai-shi, Aichi, 486-0901, Japan
Phone: [phone] FAX: [phone]

For sales network, please visit our website.

© Panasonic Industrial Devices SUNX Co., Ltd. 2015

PRINTED IN JAPAN

OUT2OUT1

MODE

-3

-1

-1

-2

-3

-2