Thank you very much for purchasing Panasonic products. Please
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.
SPECIFICATIONS
1
Indicators
12 to 24V DC % Ripple P-P 10% or less
+10
-15
Item
Type of pressure
Model No.
DP-M2
DP-M2A
Type
Standard
With analog current output
50mA or less
75mA or less
Differential pressure
Rated pressure range
0 to 2.00 kPa.D {0 to 204 mmH
2
O.D}
Hysteresis
0.01 kPa.D {1mm H
2
O.D}
Repeatability
Within
s
1% F.S.
Displayable
pressure range
-0.05 to 2.10 kPa.D {-5 to 210 mmH
2
O.D}
Operation
Orange LED (lights up when the comparative output is ON)
Pressure unit
Red LED (The indicator corresponding to the selected unit
lights up during the sensing mode.)
M1 setting
Red LED (blinks in the M1 setting mode)
M2 setting
Red LED (blinks in the M2 setting mode)
Response time
10ms or less
Short-circuit protection
Incorporated
Set pressure range
0 to 2.00 kPa.D {0 to 204 mmH
2
O.D}
Setting resolution
0.01 kPa.D {1 mmH
2
O.D}
Pressure withstandability
6 kPa.D {612 mmH
2
O.D}
Applicable fluid
Non-corrosive gas
Display
3 digit red LED display (Sampling rate: 4 times/sec. approx.)
Comparative output
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)
0.4V or less (at 16mA sink current)
Output operation
Supply voltage
Ambient temperature
0 to +50
Υ
(No dew condensation), Storage: -10 to +60
Υ
Ambient humidity
35 to 85% RH, Storage: 35 to 85% RH
Pressure port
ȭ
4.6mm resin pipe
Weight
75g approx.
Temperature characteristics
Over ambient temperature range 0 to +50
Υ
:
within
s
3% F.S. of detected pressure at 25
Υ
Material
Front case: ABS, Rear case: ABS
LED display: Acrylic, Pressure port: PA
Cable
0.18mm
2
3-core oil resistant
cabtyre cable, 2m long
0.18mm
2
4-core oil resistant
cabtyre cable, 2m long
Current consumption
㸫
Analog current output
Selectable either Normally open (NO) or Normally closed
(NC) by the keys.
Refer to '
ࠉࠉ
SETTING
' [
Output mode and output
operation
] for more details.
8
Output current: 4 to 20mA
0 to 1.96 kPa.D
{0 to 200 mmH
2
O.D}
Zero-point: Within 4mA
s
1% F.S.
Span: Within 16mA
s
3% F.S.
Linearity: Within
s
1% F.S.
Load resistance: 0 to 250
Ȑ
MJE-DPM No.0050-31V
PIPING
3
Recommended tube
Notes: 1)
2)
3)
TYGON is registered trademarks of SAINT-GOBAIN.
Ensure that excessive pressure is not applied to the pressure ports. Since this
sensor is designed for detecting small pressures, if excessive pressure or shock
is applied to the pressure ports, the diaphragm (pressure sensing device) in the
sensor may get damaged.
Please do not compress the tube. If the tube is compressed, pressure exceeding
the rated value may be generated, damaging the diaphragm (pressure sensing
device).
Pressure Hi-port
Fix tubes on ports securely
Pressure Lo-port
Flexible tubes
(silicone tube etc.)
࣭
TYGON tube, size: internal dia 4mm, external dia 6mm, made
by SAINT-GOBAIN.
Not good
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Apply higher pressure to the Hi-port and lower pressure to the
Lo-port.
Use flexible tubes (silicone tube etc.) that can fit the pressure
ports,
ȭ
4.6mm in diameter. The tubes should cover more than
half the length of the pressure ports.
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Never use this product as a sensing device for
personnel protection.
In case of using sensing devices for personnel protec-
tion, 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.
WARNING
CAUTIONS
2
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This product has been developed / produced for industrial use
only.
Use within the rated pressure range.
Make sure that the power supply is off while wiring.
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.
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 malfunc-
tion due to induction.
Avoid dust, dirt, and steam.
Take care that the sensor does not come in contact with water,
oil, grease, organic solvents, such as, thinner etc., or strong
acid, and alkaline.
Do not insert wires, etc, into the pressure port. The diaphragm
(pressure sensing device) will get damaged and correct opera-
tion 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
2
, or more,
cable. However, in case of using this product as a CE conformity
product, the power wire connected to this product must be within
10m.
DP-M
series is designed for use with non-corrosive gas. It cannot
be used for liquid or corrosive gas.
LED Display
࣭
Digital Differential Pressure Sensor
DP-M
Series
For use outside Japan
INSTRUCTION MANUAL
