Head-separated Digital Pressure Sensor DP5SERIES DPHSERIES
732
PRECAUTIONS FOR PROPER USE
FIBER
Refer to General precautions.
SENSORS
LASER
SENSORS
Auto-reference function
Operation chart
PHOTO-
• Auto-reference function corrects Set Value P-3 and
Set Value P-4 of Comparative Output 2 by taking the
pressure measured at the time of auto-reference input as
the reference pressure.
Please select the auto-reference function at the
supplementary setting mode when using this function.
<Normal operation (comparative outputs set to NO)>
ELECTRIC
SENSORS
MICRO
ON
PHOTO-
ELECTRIC
SENSORS
Comparative
Output 1
OFF
ON
AREA
SENSORS
Comparative
Output 2
OFF
LIGHT
<Before auto-reference input>
CURTAINS
Applied
0
1
1
0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 00
0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 1 00
-1 P-2 P-3 P-4
PRESSURE /
FLOW
pressure (kPa)
SENSORS
Display value (kPa)
0
ON
INDUCTIVE
PROXIMITY
SENSORS
P
Set value (kPa)
1
0 2 0 3 0 4 0
Comparative
Output 2
PARTICULAR
USE
<With auto-reference input (comparative outputs set to NO)>
OFF
SENSORS
Auto-reference input: 50 kPa
Output mode: Hysteresis mode
Atmospheric pressure
P-3
Pressure
P-4
SENSOR
OPTIONS
SIMPLE
ON
WIRE-SAVING
UNITS
• When there is no auto-reference input, the atmospheric
pressure is taken as the reference pressure for Set Value
P-3 and Set Value P-4.
Comparative
Output 1
OFF
ON
WIRE-SAVING
SYSTEMS
Comparative
Output 2
OFF
<After auto-reference input>
MEASURE-
MENT
SENSORS
Applied
0
10 20 30 40 50 60 70 80 90 100
10 20 30 40 50 60 70 80 90 100
STATIC
pressure (kPa)
CONTROL
DEVICES
Auto-reference input
ON
Display value (kPa)
0
P-3’ = P-3 + P-A
P-4’ = P-4 + P-A
P
1
-1 P-2
20
P-A
0
P-3’ P-4’
80 9
Comparative
Output 2
Set value (kPa)
ENDOSCOPE
0
5
0
Pressure change
OFF
LASER
Note: As in the case of the hysteresis mode, Set Value P-3 and Set Value
P-4 are shifted also in case the output is set to the window comparator
mode or the leak test mode.
MARKERS
Atmospheric pressure P-A
P-3’
P-4’
PLC /
Pressure
TERMINALS
• At the time of auto-reference input, the pressure value
detected at that instant is temporarily recorded as Set
Value P-A and becomes the reference pressure.
• With Set Value P-A as the reference pressure, Set Value
P-3 and Set Value P-4 are automatically corrected to “Set
Value P-3 + Set Value P-A” and “Set Value P-4 + Set
Value P-A”, respectively.
• Maintain the pressure at a constant level for at least 2 ms
after the auto-reference input is made Low (High in case
of PNP output type). If used in a transient state, it will
result in wrong operation.
• Use Comparative Output 2 at least “set response time +
2 ms” after the auto-reference input is made Low (High in
case of PNP output type).
HUMAN
MACHINE
INTERFACES
ENERGY
CONSUMPTION
VISUALIZATION
COMPONENTS
FA
COMPONENTS
MACHINE
VISION
• At the time of auto-reference input,
is displayed on
SYSTEMS
Settable range and set pressure range after correction
the 3 1/2 digit display for 1 sec. approx.
UV
CURING
SYSTEMS
• The settable range of Set Value P-3 and Set Value P-4 is
wider than the rated pressure range to cater to the
auto-reference function.
• The auto-reference input value (Set Value P-A) becomes
zero when the power supply is switched off and then on
again.
• Although it is not possible to display the corrected Set
Value P-3’ and Set Value P-4’, it is possible to display the
auto-reference input value (Set Value P-A).
Selection
Guide
• At the time of auto-reference input, if the corrected set
value exceeds the set pressure range, the set value is
automatically corrected to be within the set pressure
range. Hence, please see that the set pressure range
is not exceeded.
Pressure/
Digital Display
Pressure/
Head-separated
Flow
Other
Products
DPC-L100/
DPH-L100
DPS-400/
DPH-100
DPC-100/
DPH-100
DP5/
DPH
PANASONIC [ PANASONIC ]
