ە
When an error occurs, take the following corrective action.
ERROR MESSAGES
7
Error message
Cause
Corrective action
Overcurrent due to short-circuit.
Switch off the power supply and
check the load.
Pressure (differential pressure)
is being applied during
zero-point adjustment.
Applied pressure at the Hi-port
and Lo-port should be brought to
atmospheric pressure and
zero-point adjustment should be
done again.
Applied pressure (differential
pressure) exceeds the upper limit
of displayable pressure range
(2.10 kPa.D {210 mmH
2
O.D}).
Applied pressure (differential
pressure) exceeds the lower limit
of displayable pressure range
(-0.05 kPa.D {-5 mmH
2
O.D}).
Applied pressure should be
brought within the rated pressure
range.
0 to 2.00 kPa.D
{0 to 204 mmH
2
O.D}
MOUNTING
4
ە
ە
The displayed value may vary by 1 digit (0.01 kPa.D {1 mmH
2
O.D})
maximum depending on whether the sensor is installed vertically
or horizontally.
The sensor mounting bracket
MS-PE-1
(optional) is available.
When mounting the sensor with the sensor mounting bracket,
etc., the tightening torque should be 0.5N
࣭
m or less.
ە
The panel mounting bracket
MS-PE-2
(optional) and the front
protection cover
MS-PE-3
(optional) are also available.
L o
H
i
M3 (length 8mm) screws with washer
(accessory for
MS-PE-1
)
Sensor mounting bracket
MS-PE-1
(optional)
Front protection cover
MS-PE-3
(optional)
Panel mounting bracket
MS-PE-2
(optional)
Suitable for 1 to 3.2mm
thick panel
FUNCTIONAL DESCRIPTION
6
Increment key
(
ࠉࠉ
)
Decrement key
(
ࠉࠉ
)
Mode selection key
(
ࠉࠉ
)
MODE
Three modes, the sensing mode, the lower threshold value
(M1) setting mode, and the upper threshold value (M2) setting
mode, are cyclically selected at every press of the key.
During the sensing mode, pressing the key for 4 sec., or
more, can make the key protection either effective or
ineffective.
Holding the increment key ( ) and simultaneously pressing
the mode selection key brings the sensor from the sensing
mode to the initial setting mode.
࣭
࣭
࣭
Designation
Function
3 digit LED display
(Red)
ձ
The measured differential pressure level, setting values, error
codes, and key protection sign are displayed.
Pressure unit indicator
(mmH
2
O, kPa)
(Red)
յ
The indicator of the selected unit lights up during the
sensing mode.
Both indicators turns off during the initial setting mode and
during an error occurrence.
The indicator of the selected unit blinks during the upper
and lower threshold value setting mode.
࣭
࣭
࣭
ո
ն
The settable digit is shifted cyclically at
every press of the key during the initial
setting mode.
Pressing the key increases the set
value, in the upper and lower threshold
value setting mode.
࣭
࣭
During the
sensing mode,
pressing both
switches
calibrates the
sensor into
atmospheric zero.
շ
The set condition changes at every
press of the key during the initial setting
mode.
Pressing the key decreases the set
value, in the upper and lower threshold
value setting mode.
࣭
࣭
M1 setting indicator
(Red)
ղ
Blinks in the lower threshold value (M1) setting mode.
M2 setting indicator
(Red)
ճ
Blinks in the upper threshold value (M2) setting mode.
Pressure Lo-port
չ
Lower pressure should be applied.
Pressure Hi-port
պ
Higher pressure should be applied.
Operation indicator
(Orange)
մ
Lights up when the comparative output is ON.
ձ
3 digit LED
display (Red)
ղ
M1 setting
indicator (Red)
յ
Pressure unit indicator
(mmH
2
O) (Red)
յ
Pressure unit indicator
(kPa) (Red)
ճ
M2 setting
indicator (Red)
մ
Operation indicator
(Orange)
ն
Increment key
շ
Decrement key
ո
Mode selection key
չ
Pressure Lo-port
պ
Pressure Hi-port
I/O CIRCUIT DIAGRAMS
5
ە
Standard type / DP-M2
Symbols... D
Z
D
T
r
: Reverse supply polarity protection diode
: Surge absorption zener diode
: NPN output transistor
D
T
r
Z
D
Internal circuit
Uses' circuit
Load
(Black)
Comparative output
(Blue) 0V
(Brown) +V
100mA max.
12 to 24V DC
+10
-15
ࠉ
%
+
-
Color code
Sensor circuit
Symbols... D: Reverse supply polarity protection diode
Z
D1
, Z
D2
: Surge absorption zener diode
T
r
: NPN output transistor
Note: The analog current output is not incorporated with a short-circuit protection circuit.
Do not directly connect a power supply or a capacitive load.
ە
With analog current output type / DP-M2A
(Black)
Comparative output
(Blue) 0V
(White) Analog current output (Note)
(Brown) +V
Color code
D
T
r
Z
D1
Z
D2
Internal circuit
Uses' circuit
Load
Load
100mA max.
12 to 24V DC
+10
-15
ࠉ
%
+
-
0 to 250
Ȑ
4 to 20mA
Sensor circuit
