Datasheet

669
Dual Display Digital Pressure Sensor DP-100 SERIES
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Pressure/
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Pressure/
Head-separated
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DP-100
DP-M
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FUNCTIONS
Equipped with two independent comparative outputs,
and separate sensing modes can be selected for each
of them. Since there are two comparative outputs, one
of the comparative outputs can even be used for alarm
output. In addition, if an output is not being used, it can
be disabled.
Equipped with independent dual output and three output modes
Standard type
Comparative output 1
EASY mode
Comparative output 2
EASY mode
ON
OFF
ON
OFF
–100 kPa P-1 0 kPa P-2
Suction checking
Vacuum breakdown checking
Vacuum breakdown can also be checked during suction applications!
Reference pressure alarm output is possible during reference pressure checking!
0 kPa
Comparative output 1
hysteresis mode
Comparative output 2
EASY mode
ON
OFF
ON
OFF
Lo-1 Hi-1 P-2
Reference
pressure
checking
Alarm output
1
EASY mode
This mode is used for comparative output ON / OFF control.
H (Hysteresis)
H: Fixed
P
0
ON
OFF
Comparative output
Pressure
Notes:1)Hysteresiscanbexedtooneofeightdifferentlevels.
2) “
”appears in the sub display for comparative output 1, and
“
” appears for comparative output 2.
2
Hysteresis mode
This mode is used for setting comparative output hysteresis
to the desired level and for carrying out ON / OFF control.
Lo
Hi
0
ON
OFF
Comparative output
H (Hysteresis)
H: 1 digit or more
Pressure
Note: “ ” or “ ” appears in the sub display for comparative
output 1, and “
” or “ ” appears for comparative output 2.
3
Window comparator mode
This mode is used for setting comparative output ON
and OFF at pressures within the setting range.
H (Hysteresis)
H: Fixed
H (Hysteresis)
Comparative output
Lo
Hi
0
ON
OFF
Pressure
Notes:1)Hysteresiscanbexedtooneofeightdifferentlevels.
2)
“ ” or “ ” appears in the sub display for comparative
output 1, and “ ” or “ ” appears for comparative output 2.
If the reference pressure of the device changes, the auto-reference function
partially shift the comparative output judgment level by the amount that the
reference pressure shifts, and the remote zero-adjustment function can reset
thedisplayvaluetozeroviaexternalinput.Thesefunctionsareidealfor
placeswherethereferencepressureuctuateswildly,orwherenesettings
are desired.
Equipped with auto-reference / remote zero-adjustment functions, more precise pressure management is possible with a minimum of effort
Multi-function type
With auto-reference function applied
20
15
0
–5
OK
Comparative output: Window comparator mode
Hi-1…0, Lo-1…–5
When auto-reference input is applied, the reference pressure “30”
is added to the threshold level. If the reference pressure changes
to “20” or “40”, the auto-reference input compensates for this
every time by changing the threshold level, so any variation in
the filling pressure can be ignored.
30
Auto-reference input
Sets the absolute threshold level
The display remains at “30” and
only the threshold level is changed.
Threshold level before applying
auto-reference input
Trial 1
25
Time
Pressure
Trial 1
Auto-reference input value…
Comparative output: Window comparator mode
Hi-1…0, Lo-1…–5
Sets the absolute threshold level
With remote zero-adjustment function applied
20
15
0
–5
OK
When remote zero-adjustment input is applied, the reference
pressure is forced to “0”. If the reference pressure changes to
“20” or “40”, the remote zero-adjustment input adjusts the
reference pressure to “0” every time the reference pressure
changes, so any variation in the filling pressure can be ignored.
30
Remote zero-adjustment input
Threshold level before applying
remote zero-adjustment input
Threshold level after applying
remote zero-adjustment input
25
Time
Pressure
Displayed when remote zero-adjustment
input is applied…
–5
The display is forced to “0”, and only the
filling pressure drop range is displayed.
0
Threshold level after applying
auto-reference input