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http://www.sunx.co.jp/
Head Office
SUNX Limited
Phone:
ⴐ
81-(0)568-33-7861
FAX:
ⴐ
81-(0)568-33-8591
Overseas Sales Dept.
2431-1 Ushiyama-cho, Kasugai-shi, Aichi,
486-0901, Japan
Phone:
ⴐ
81-(0)568-33-7211
FAX:
ⴐ
81-(0)568-33-2631
12
PROCEDURE FOR CHECKING SET VALUES
Set to Set Value 3 (P3) set mode
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
Displayed
alternately
•
In the Set Value 2 (P2) set mode, press
key.
•
and the automatically set Set Value
3 (P3) are displayed alternately.
•
In case
Set Value 1 (P1) =
ⳮ
50.0kPa
Set Value 2 (P2) =
ⳮ
100.0kPa
then
Set Value 3 (P3) =
ⳮ
50.0
Ⳮ
(
ⳮ
100.0)
=
ⳮ
75.0kPa
2
Digits smaller than the displayed digits
are discarded.
MODE
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.
Set to sensing mode
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
•
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.
MODE
䢇
The conditions which have been set in the initial setting and the
pressure settings can be checked by the following procedure.
•
Please note that if any key, except key, is pressed in any
setting mode, the set conditions shall get changed.
MODE
Procedure to check initial conditions
Procedure to check set values
Set to sensing mode
Set to sensing mode
Press key
while pressing
key.
Press key.
Sensor enters initial setting mode
Sensor enters Set Value 1 (P1) set mode
•
Initial conditions which have
been set are displayed and can
be checked.
•
Set Value 1 (P1) which has
been set is displayed and can
be checked.
Sensor returns to sensing mode
Sensor enters Set Value 2 (P2) set mode
•
Set Value 2 (P2) which has
been set is displayed and can
be checked.
Sensor enters Set Value 3 (P3) set mode
•
Set Value 3 (P3) which has
been set is displayed and can
be checked.
Sensor returns to sensing mode
MODE
Press key.
In case of auto-
matic sensitivity
setting mode only
MODE
MODE
Press key.
MODE
Press key.
MODE
Press key.
MODE
13
CONVERSION OF PRESSURE UNITS
䢇
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.
•
For example, if 2kPa is to be expressed in kgf/cm
2
, since 1kPa=1.01972
⳯
10
ⳮ
2
kgf/cm
2
, 2kPa becomes 2
⳯
1.01972
⳯
10
ⳮ
2
c
0.020kgf/cm
2
Conversion procedure
Conversion table for pressure units
kPa
MPa
kgf/cm
2
bar
psi
mmHg
inHg
atm
(Torr)
1kPa
1
1
⳯
10
ⳮ
3
1.01972
⳯
10
ⳮ
2
1
⳯
10
ⳮ
2
1.45038
⳯
10
ⳮ
1
7.50062
0.2953
9.86923
⳯
10
ⳮ
3
1MPa
1
⳯
10
3
1
1.01972
⳯
10
1
⳯
10
1.45038
⳯
10
2
7.50062
⳯
10
3
0.2953
⳯
10
3
9.86923
1kgf/cm
2
9.80665
⳯
10 9.80665
⳯
10
ⳮ
2
1
9.80665
⳯
10
ⳮ
1
1.42234
⳯
10 7.35559
⳯
10
2
2.8959
⳯
10 9.67841
⳯
10
ⳮ
1
1bar
1
⳯
10
2
1
⳯
10
ⳮ
1
1.01972
1
1.45038
⳯
10 7.50062
⳯
10
2
2.953
⳯
10
9.86923
⳯
10
ⳮ
1
1psi
6.89473
6.89473
⳯
10
ⳮ
3
7.03065
⳯
10
ⳮ
2
6.89473
⳯
10
ⳮ
2
1
5.17147
⳯
10
2.036
6.80457
⳯
10
ⳮ
2
1mmHg
1.33322
⳯
10
ⳮ
1
1.33322
⳯
10
ⳮ
4
1.35951
⳯
10
ⳮ
3
1.33322
⳯
10
ⳮ
3
1.93368
⳯
10
ⳮ
2
1
3.9370
⳯
10
ⳮ
2
1.31579
⳯
10
ⳮ
3
(1Torr)
1inHg
3.3864
3.3864
⳯
10
ⳮ
3
3.4531
⳯
10
ⳮ
2
3.3864
⳯
10
ⳮ
2
0.4912
2.5400
⳯
10
1
3.342
⳯
10
ⳮ
2
1atm
1.01325
⳯
10
2
1.01325
⳯
10
ⳮ
1
1.03323
1.01325
1.46960
⳯
10 7.60000
⳯
10
2
2.9921
⳯
10
1
14
PEAK HOLD & BOTTOM HOLD FUNCTIONS
15
KEY-PROTECT FUNCTION
䢇
Peak hold and bottom hold functions enable the display of the
peak value (maximum pressure value in case of 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.
䢇
These functions are convenient for finding the pressure
variation range or for determining the reference for pressure
settings.
䢇
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.
16
LABEL FOR CHANGE IN PRESSURE UNIT
䢇
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.
•
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.
•
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.
Peak hold display
Initiating peak hold display
Setting of key-protect
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
Displayed
alternately
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
•
In the sensing mode, keep key pressed
until is displayed. (4 sec. approx.)
When the finger is released after is
displayed, the peak value and are
displayed alternately.
•
If the applied pressure exceeds the
displayable pressure range, error
message ( or ) and 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’.
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
•
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.
MODE
Ending peak hold display
•
Press key.
[
•
Sensor returns to sensing mode.]
Bottom hold display
Initiating bottom hold display
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
Displayed
alternately
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
•
In the sensing mode, keep key pressed
until is displayed. (4 sec. approx.)
When the finger is released after is
displayed, the bottom value and are
displayed alternately.
•
If the applied pressure exceeds the
displayable pressure range, error
message or and 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’.
Ending bottom hold display
•
Press key.
[
•
Sensor returns to sensing mode.]
•
When the keys are to be operated, make sure that key-
protect is released.
Release of key-protect
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
•
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.
MODE
Pressure unit label (accessory)
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
Comparative
Output 1
Comparative
Output 2
ON
OFF
ON
OFF
0 Set Value 1 (P1)
Set Value 2 (P2)
Set Value 3 (P3) High pressure
(Positive pressure type)
High vacuum
(Vacuum pressure type)
Hysteresis
Changeable
range
Hysteresis: 1 digit
2 digits when
psi unit is used
(
)
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
DP2-20
–101.3kPa
OUT2
OUT1
MODE
0-ADJ
Displayed
alternately
•
Enter using key and key.
•
In case of a positive pressure type
sensor, if key is pressed once, the set
value changes towards the high pressure
side by 1 digit and if key is pressed
once, the set value changes towards the
low pressure side by 1 digit.
In case of a vacuum pressure type
sensor, if key is pressed once the set
value changes towards the high vacuum
side by 1 digit and if key is pressed
once the set value changes towards the
low vacuum side by 1 digit.
•
If key or key is pressed conti-
nuously, the set value changes quickly.
•
If the set pressure range is exceeded,
either (upper limit exceeded) or
(lower limit exceeded) is displayed.
(
)
