Omron E8F2 - User manual

1
Pressure Sensor E8F2
Incorporates Easy-to-see LED Display
Industry’s smallest, lightest model.
Both analog and digital pressure values are
displayed.
Two independent outputs plus one analog output
are available.
Bears CE markings.
Ordering Information
Sensors
Pressure range ON/OFF output Linear output Model
Positive pressure
0 to 100 kPa
NPN open collector
(i d d t t
1 to 5 V
E8F2-A01C
0 to 1 MPa (independent two
out
p
uts)
E8F2-B10C
Negative pressure 0 to –101 kPa
ou
t
pu
t
s
)
E8F2-AN0C
Accessories (Order Separately)
Appearance Name Model Remarks
Mounting Bracket E89-F3 Provided with the E8F2
Panel-mounting Bracket E89-F4 ---
Application Examples
Chip Attachment Checks Air Pressure Checks PCB and Wafer Attachment
Checks
E8F2
E8F2
E8F2

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Specifications
Ratings/Characteristics
Item E8F2-A01C E8F2-B10C E8F2-AN0C
Power supply voltage 12 to 24 VDC ± 10% with a ripple (p-p) of 10% max.
Current consumption 70 mA max. (see note 1)
Pressure type Gauge pressure
Rated pressure range 0 to 100 kPa 0 to 1 MPa 0 to –101 kPa
Pressure setting range 0 to 100 kPa 0 to 1 MPa 0 to –101 kPa
W ithstand pressure 400 kPa 1.5 MPa 400 kPa
Applicable fluid Non-corrosive gas and non-flammable gas
Operating mode Hysteresis mode, window mode, and auto-teaching mode
Repeat accuracy
(ON/OFF output) ±
1% FS max.
Linearity ± 1% FS max.
Response time
(ON/OFF output)
5 ms max.
Linear output 1 to 5 V ± 5% FS with an output impedance of 1 k Ω and a permissible resistive load of 500 k Ω
min.
ON/OFF output NPN open collector (NO/NC)
Load current 30 mA max.
Output applied voltage 30 VDC max.
Residual voltage 1 V max. with a load current of 30 mA
Display (see note 2)
3.5-digit red LED
Green LED bar indicator
The orange LED is lit for two independent outputs with output transistor turned ON
Green unit indicator
Display accuracy ± 3% FS ± 1 digit max.
Circuit protection Reverse polarity connection, load short-circuiting
Ambient temperature
Operating: 0°C to 55 °C
Storage: –10° C to 60 ° C (with no icing)
Ambient humidity Operating/Storage: 35% to 85% (with no condensation)
T emperature influence ± 3% FS max.
V oltage influence ± 1.5% FS max.
Insulation resistance 100 M Ω min. (at 500 VDC) between current-carry parts and case
Dielectric strength 1,000 V AC at 1 min
V ibration resistance
Destruction: 10 to 500 Hz, 1.0-mm double amplitude or 150 m/s
2
, 3 times each for 11 min in X, Y ,
and Z directions
Shock resistance 300 m/s
2
(30G) 3 times each in X, Y , and Z directions
Degree of protection IEC60529, IP50
Pressure port R(PT) 1/8 taper screw and M5 female screw
Connection method Pre-wired (standard length: 2 m)
Cable Approved by UL
W eight (incl. packing material) Approx. 1 10 g
Material
Pressure port Aluminum die cast
Case Heat-resistive ABS
Accessory Mounting Bracket and instruction sheet
Note: 1. The current consumption is approximately 43 mA in energy-saving mode.
2. Display Example of Digital Indicator
Model
Setting unit
kPa mmHg kgf
A
pp
li
e
d
p
ressure
Di
g
i
ta
l
dis
p
la
y
A
pp
li
e
d
p
ressure
Di
g
i
ta
l
dis
p
la
y
A
pp
li
e
d
p
ressure
Di
g
i
ta
l
dis
p
la
y
E8F2-A01C 100 1000
.
Cannot be set
11000
.
E8F2-B10C 1,000 1000 10 1000
.
E8F2-AN0C –101 Ć1 0 1 0
.–760 Ć7 6 0–1.01 Ć1 0 1 0
.

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Note: The “ . ” in the display indicates the decimal point. Its position will not change unless the setting unit is changed.

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Engineering Data
(Typical)
Temperature vs. Linear Output Current Fluctuation
E8F2-A01C Temperature vs. Operating Pressure Fluctuation
E8F2-A01C
Linear output fluctuation (% FS)
Pressure 0
Rated pressure
Temperature ( °C)
Operating pressure fluctuation (% FS)
T emperature ( °C)
Pressure vs. Linear Output
E8F2-A01C Linearity E8F2-A01C
Linear output voltage (V)
Pressure (kPa)
Linearity deviation (%FS)
Pressure (kPa)
Nomenclature
(1)
(4)
(5)
(2)
(3)
(8)
(7)
(6)
Display Panel
1. Bar Indicator (Green)
Indicates the degree of measured pressure according to the
the set pressure.
2.
Numeric and Menu Display (Red)
Indicates measurement values and setting menu items.
3. Unit Indicator (Green)
Indicates the unit used for detection. The unit indicated with
the indicator is the one currently set.
4. OUT1 Indicator (Orange)
Lit when OUT1 is turned ON.
5. OUT2 Indicator (Orange)
Lit when OUT2 is turned ON.
Operation Keys
6. Up Key
7. Down Key
•Used to select or change the set items, set contents, and set
values in setting mode.
•Press either key to check the ON and OFF points in
measurement mode. The values are reset by pressing
both
keys simultaneously .
•Used together with the SET Key for setting the Sensor to a
special
setting mode or energy-saving mode.
8. SET Key
•Used for entering the set contents and set values in setting
mode.
•Used for setting the Sensor to basic setting mode or pressure
setting mode.

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Operation
Output Stage Circuit
Output type NPN output (normally open) NPN output (normally closed)
Model E8F2-A01C
E8F2-B10C
E8F2-AN0C
Timing
chart Hysteresis
mode Pressure
ON point
OFF point
Output
OUT
indicator
(orange) OFF
ON
OFF
ON
Pressure
ON point
OFF point
Output
OUT
indicator
(orange) OFF
ON
Window
mode Pressure
OFF point
ON point
Output
OUT
indicator
(orange) OFF
ON
OFF point – 10% FS
max.
ON point – 10% FS
max.
OFF
ON
Pressure
OFF point
ON point
Output
OUT
indicator
(orange) OFF
ON
OFF point – 10% FS
max.
ON point – 10% FS
max.
Output circuit
Pressure
Sensor
main
circuit
Brown
Black
(ON/OFF1)
30 mA
max.
Load
30 mA
max.
White (ON/OFF2)
Gray
(linear) 1 to 5 V
Load
Blue 0 V
Load
12 to 24 V
Functions and Settings
Function/Setting Description Page
Zero-reset function Sets the measurement value to 0 when the Sensor is exposed to the air . 8
Basic setting
d
Unit setting Changes the unit for detection. 8
g
mode
Pressure setting method --- 9
Output-type setting Selects normally-open or normally-closed output. 9
Pressure
tti d
Manual setting Sets ON and OFF points manually . 10
setting mode
Auto-teaching setting Automatically sets ON and OFF points depending on actual sensing
objects. 11
Special setting
mode
Key-protect setting Protects set value changes due to the incorrect operation of the keys.
Prevents set values changes due to careless key operation.
13
Hysteresis range setting Changes the hysteresis range. 13
Window range setting Changes the window mode setting. 14
Display refresh interval setting Changes the display refresh interval to make the displayed value easier to
see. 14
Measurement value averaging
time setting
Prevents incorrect output due to sudden, instantaneous changes that may
occur with pressure. 14
LED bar indicator range setting Changes the display range of the LED bar indicator in hysteresis mode. 15
Energy-saving
d
Energy-saving function 1 Displays the LED bar indicator but turns the red LED display OFF . 16
gy g
mode
Energy-saving function 2 The LED bar indicator and red LED display flashes in window mode if the
measured value exceeds the set range.
16

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Function/Setting PageDescription
ON/OFF set value check function Checks the set ON and OFF points. 16
Settings
Digital Display
The E8F2 displays alphanumeric characters, such as measure-
ment
values and menu items, with 7-segment LEDs as shown be -
low
for example.
Display Meaning
ope
In output ope ration
kpa Unit (kPa)
wid Width
The following abbreviations are used for the digital display of the
Controller.
Abbreviation Meaning Abbreviation Meaning
Unt Unit DSP Display
M-A Manual/Auto AVE Average
OPE Operation BAR Bar
PRT Protect AUT Auto
HYS Hysteresis ECO Economy
WID Width
a b c d e f g h i j k l m n o p r s t u U w x y =
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Modes
In addition to displaying measurement values, the E8F2 has a variety of functions. These functions are available in four main modes as de -
scribed
below . Three functions are available in measurement mode. For the relationships among each mode and for switching methods, refer
to the following figure.
Power ON
Zero-reset function
ON- and OFF-point check
function
No key operation
No key operation
Measurement
mode
Energy-saving function 1
Energy-saving function 2
or or
Basic Setting Mode
unt: Measurement unit selection
mĆa : Pressure setting method
selection
ope: Output-type selection
Pressure Setting Mode
on: OUT1 ON-point setting
off: OUT1 OFF-point setting
Manual setting
on: OUT2 ON-point setting
off: OUT2 OFF-point setting
t.h1: OUT1 two-point teaching
t.w : OUT1 one-point teaching
Auto-teaching setting
t.h1: OUT2 two-point teaching
t.w : OUT2 one-point teaching
prt: Key-protect setting
Special Setting Mode
hys: Hysteresis width setting
wid: Window width setting
dsp: Measurement value display
refresh interval setting
aUe : Number of measurement times
setting for measurement value averaging
bar : LED bar indicator range setting
or
or
Note: 1. and indicate that the key must be pressed for approximately 2 or 3 s respectively .
2.
The following will result when the E8F2 in basic, pressure setting, or special setting mode is reset to measurement mode.
: The set values are entered.
: The set values are not entered (left as they are).

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*1. Manual setting is available by selecting m (manual) in the pressure setting method selection in basic setting mode.
*2. Auto-teaching setting is available by selecting a (auto-teaching) in the pressure setting method selection in basic setting mode.

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Zero-reset Function
Use the zero-reset function with the Sensor exposed to the air .
Measurement mode
Normal
Error
The
displayed measurement value is reset to 0 by pressing the Up
and Down Key simultaneously . The reset range is within ±5% (FS)
of the rated pressure. If the value is not within the range, an error will
be displayed and the reset will not be enabled.
Basic Setting Mode
The unit of measurement, pressure setting method, and output type are set in basic setting mode.
Measurement
mode
Setting item
1. Press the SET Key for approximately 2 s so that the E8F2
will be set to basic setting mode and unt will be displayed.
2. Set the items unt , mĆa , and ope with Up or Down Key .
Setting item
Unit setting Pressure setting method selection Output-type setting
Unit Setting
Setting item
Unit setting in E8F2-AN0C
1. Press the SET Key while unt is displayed to display the unit presently set.
2. Press the Up or Down Key to select the unit.
3. Press the SET Key to select the displayed unit and display unt again.
4. Press the Up and Down Keys simultaneously , to display unt again without selecting the unit.

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Pressure Setting Method Selection
Setting item
Pressure setting
Manual setting Auto-teaching
m: Manual setting (The ON and OFF
points are manually set.)
a: Auto-teaching (The ON and OFF
points
are set automatically .)
or
1.
Press the SET Key while mĆa is displayed to display the pressure setting method presently set.
2. Press the Up or Down Key to select the pressure setting method.
3. Press the SET Key to select the displayed pressure setting method and display mĆa again.
4. Press the Up and Down Keys simultaneously to display mĆa without selecting the unit.
Output-type Setting
Setting item
Output-type setting
or
or or
nc : Normally closed
no : Normally open
1. Press the SET Key while ope is displayed to display the output type of OUT1 presently set.
2. Press the Up or Down Key to select the output type.
3. Press the SET Key to select the displayed output type and display the output type of OUT2 presently set.
4. Press the Up or Down Key to select the output type.
5. Press the SET Key to select the displayed output type and display ope again.
6. Press the Up and Down Keys simultaneously to display ope again without selecting the unit.
Returning to Measurement Mode
Setting item
Unit setting Pressure setting
Entering the Setting Item:
Press the SET Key for approximately 2 s to
enter
the item that has been set.
or
Output configuration
or Entered
Not entered Measurement
Mode
Not Entering the Setting Item:
Press the Up and Down Keys simultaneously
so that the item set will not be entered.

Normally Open
Hysteresis Mode Window Mode
OFF-point
set value
ON
OFF
ON-point
set value
Pressure
value ON-point
set value OFF-point
set value Pressure
value
Normally Closed
Hysteresis Mode
Window Mode
OFF-point
set value ON-point set value Pressure
value ON-point
set value OFF-point set value Pressure
value
Output
ON
OFF
Output
ON
OFF
Output
ON
OFF
Output
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Pressure Setting Mode
The E8F2 provides output according to the measured
values to control external devices, such as valves and
pumps.
In order to control the external devices, a reference
value
can be set so that the output will be ON or OFF if
the measured values are above or below the refer-
ence
value.
The output ON- and OFF-point settings are described
below, provided that the output is normally open.
The ON and OFF points are set in pressure setting
mode manually or through auto-teaching.
Manual Setting
Note: Manual setting will be possible if m is selected in pressure setting method selection in basic setting mode.
Measurement
mode
Manual setting
or
Displayed
alternately Displayed
alternately Displayed
alternately Displayed
alternately
Press the Up or Down
Key to change the set
value.
1. Press the SET Key , to set the E8F2 to pressure setting mode and display the OUT1 ON point and on alternately .
2.
Press the Up or Down Key to change the OUT1 ON point.
3. Press the SET Key to select the ON point and display the OUT1 OFF point and off alternately .
4.
Press the Up or Down Key to change the OUT1 OFF point.
5. Press the SET Key to select the displayed OFF point and display the OUT2 ON point and on alternately .
6.
Press the Up or Down Key to change the OUT2 ON point.
7. Press the SET Key to select the ON point and display the OUT2 OFF point and off alternately .
8.
Press the Up or Down Key to change the OUT2 OFF point.
9. Press the SET Key to select the OFF point and display the OUT1 ON point and on alternately .
Returning to Measurement Mode
• Entering the Setting Item:
Press the SET Key for approximately 2 s to enter any item that
has been set.
• Not Entering the Setting Item:
Press the Up and Down Keys simultaneously so that any item set
will not be entered.