Omron E3NT - User manual

E3NT
A-83E3NT
Harsh environment long distance photoelectric Sensor in metal housing
E3NT
• 4 Diffuse reflective E3NT-L application
optimized models:
• Extra long distance type for setting
distances up to 3 m
• Window heating type for low tem-
perature environments
• Analog output type for distance in-
formation
• Fast response type for high speed
detection and counting
• Retro reflective E3NT-R models with
sensing distance up to 16 m
• Two programmable outputs for ’win-
dow teaching’
• Double triangulation for stable detec-
tion of reflective objects
• IP67 and IP69k for highest resistance
in wet environments
Application
Condensation in often cleaned envi-
ronments or due to rapid temperature
changes is prevented by the complete-
ly sealed housing of the E3NT and the
optional window heating.
With the optic link, the sensor can be
remotely set and checked while it is op-
erating in an area where access is re-
stricted.
This robust sensor is ideal for opera-
tion in harshest environments.
F502-EN2-04.book Seite 83 Dienstag, 26. Juli 2005 5:48 17

A-84 Standard Photoelectric Sensors
Ordering Information
Sensors
Accessories (order separately)
Optical data link
Laser alignment aid
Sensing method Type Appearance Connection
method
Sensing / Setting distance Model
Distance setting
(BGS/FGS)
Long distance M12 Connector
(5-pole)
0.2 m .. 3.0 m (90% remission)
0.2 m .. 2.7 m (6% remission)
E3NT-L17-20
E3NT-L37-20
Window heating 0.2 m .. 2.0 m E3NT-LH17
E3NT-LH37
Fast response E3NT-L17
E3NT-L37
Analog and
digital output
E3NT-L27
E3NT-L47
Retro reflective
(with MSR-polarisa-
tion)
Long distance 0.2 m .. 16.0 m (with E39-R8) E3NT-R17
E3NT-R37
Communication method to sensor Appearance Communication method to PC Model
IR data interface RS232 E3NT-AL232 2M
200 mm 3,000 mm
200 mm 2,000 mm
200 mm 16,000 mm
Max. distance for visible spot Appearance Operation time Model
50 m min. 5 hours with new battery E3NT-AP1
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A-85E3NT
E3NT
Mounting brackets
Reflectors
E39-R8
Sensor I/O connectors
Appearance Model Qty. Remarks
E39-EL1 1 Universal mounting bracket
E39-EL2 1 Adapter bracket (for use of the universal mounting bracket for
not matching holes)
E39-EL3 1 Adapter bracket replacing E3N with E3NT
ffor M3
for M3
9100
100
92
92
Size Cable type Shape Cable length Model
M12 Standard 5-pole 2m XS2F-D521-DG0-A
5m XS2F-D521-GG0-A
2m XS2F-D522-DG0-A
5m XS2F-D522-GG0-A
Standard 4-pole
(Pin 5 not connect-
ed)
2m 934 401 101 (PVC)
934 401 201 (PUR)
5m 934 401 100 (PVC)
934 401 200 (PUR)
2m 934 402 102 (PVC)
934 402 201 (PUR)
5m 934 402 100 (PVC)
934 402 200 (PUR)
Straight
L-shape
Straight
L-shape
F502-EN2-04.book Seite 85 Dienstag, 26. Juli 2005 5:48 17

A-86 Standard Photoelectric Sensors
Rating/performance
Sensors
Item Model
E3NT-L17
E3NT-L37
E3NT-L27
E3NT-L47
E3NT-LH17
E3NT-LH37
E3NT-L@7-20 E3NT-R
Sensor type Diffuse reflective sensor with background suppression respectively
foreground suppression
Retroreflective
sensor
Signal evaluation Double triangulation method Polarization
Configuration By push button on the sensor or with a PC connected via the optical data link E3NT-AL232
2m
Operating modes Background suppression, foreground suppression, background and
foreground suppression (2-point window evaluation)
---
Light source Infrared LED 850 - 880 nm Red LED
660 nm
Rated sensing distance 2 m 3 m 16 m
Setting distance Sr Distance – setting possible between ---
0.2 ... 2.0 m (90 % remission)
0.2 ...1.7 m (6 % remission)
0.2 ... 2.0 m
(90 % remission)
0.2 ...1.4 m
(6 % remission)
0.2 ... 3.0 m
(90 % remission)
0.2 ...2.7 m
(6% remission)
0.2 ... 16.0 m
Standard measured object Kodak gray card 90% (white), size: 200 x 200 mm ---
Blind zone < 0.1 m < 0.15 m
Black/white error (6%/90%) < 15 % of setting distance Sr ---
Hysteresis (typical) < 5 % of setting distance Sr or 4 cm (for white 90 %)
< 10 % of setting distance Sr or 6 cm (for black 6 %)
< 10 % of setting
distance Sr or
10 cm (for
white)
< 15 % of setting
distance Sr or
10 cm (for
black)
---
Repetition accuracy < 5 % (of setting distance Sr) or 4 cm < 5 % (of setting
distance Sr) or
10 cm
---
Light spot diameter < 40 mm in the case of Sr = 2 m app. 100 mm*1
at 10 m
Minimum object size > 40 mm
Ambient light immunity to
EN 60947-5-2:
Halogen lamps (100-120 Hz > 10,000 lux
Fluorescent lamps (30 kHz) > 5,000 lux
Energy saving lamps > 2,000 lux
Utilization category to EN 60947-5-2 DC 12
Rated operating voltage + 24 V DC, polarized
Operating voltage range + 10 ... + 30 V DC + 11 ...
+30VDC
+ 10 ...
+30VDC
Current consumption < 90 mA
(display off)
< 110 mA
(display on)
< 100 mA
(display off)
< 120 mA
(display on)
< 220 mA with
front pane heat-
ing
< 110 mA
(display off)
< 130 mA
(display on)
< 80 mA
(display off)
< 110 mA
(display on)
Power-on delay < 300 ms
Input – / Output – pins Pin 2 = Input (In 2) or output (Out 2), depending on configuration
Pin 4 = Output (Out 1)
Pin 5 = Input
(In 1)
Pin 5 = Analog
output
Pin5=Input(In1)
Digital Outputs User set functions (e.g. switching output, alarm output, ...)
Output circuit User set PNP (open collector), NPN (open collector) or complementary (push-pull)
Output current max. 100 mA
Voltage drop < 2.0 V
Residual current < 100 µA
Circuit protection Reversed power supply, overload, short-circuit (pulsed)
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A-87E3NT
E3NT
Inputs User set functions (e.g. teach-in, trigger, test, ...)
Input circuit Voltage input +10 V ... Usupply Voltage input
+11 V ... Usupply
Voltage input
+10 V ... Usupply
Input pulse duration min. 1 ms
Analog Output Current output
3..21mA:
• 3 mA corre-
spond to
distance < 0.2
m
• 4 ... 20 mA
correspond to
distance 0.2
m ... 2.0 m
• 21 mA corre-
spond
to distance >
2.0 m
(or no object)
Switch-on/off time (TON / TOFF)≤2.5 ms ≤5 ms ≤2.5 ms ≤20 ms ≤2.0 ms
Insulation resistance 20 MΩat 500 V DC
Insulation voltage strength 1,0 kV AC, 50/60 Hz (1 min)
Impulse strength (insulation) 1,5 kV
Dimensions (length x width x depth) 85 x 27 x 65 mm
Materials
Housing Powder-coated aluminum, sea-water resistant, 231 GD AlSi12 (Cu) (standard version)
Front pane Glass
Keyboard HTV silicone
Seals RTV silicone
Housing color Grey, RAL 7030
Assembly Screw fastening by way of four M5 threads and two M5 through holes or with universal
mounting bracket (order separately)
Connection M12 connector, 5-pole (piercing)
Ambient temperature range - 25 °C ... +
55 °C
- 10 °C ... +
55 °C
(analog output)
- 40 °C ... +
55 °C
- 25 °C ... + 55 °C
Storage temperature range - 40 °C ... + 60 °C - 40 °C ... + 70 °C
Permissible relative humidity 35 % ... 95 %, no condensation
Enclosure rating IP 67 (EN 60529), IP 69k (DIN 40050)
Protection class II (50 V DC)
Vibration resistance ± 1.5 mm, 1 h , 10 - 70 Hz (IEC 68-2-6)
Shock resistance 300 m/s² (IEC 68-2-27)
User set parameters - Mode
- Output function
- Teach/set switching points
- Output switching
- Function on connector pin 2 and 5
- Switch-on and off delay
- Type of switch-off time function
- Type of display on the sensor
- Keyboard lock
- Energy saving mode
- Display direction
- Reset to factory defaults
*1. see diagramm
Item Model
E3NT-L17
E3NT-L37
E3NT-L27
E3NT-L47
E3NT-LH17
E3NT-LH37
E3NT-L@7-20 E3NT-R
F502-EN2-04.book Seite 87 Dienstag, 26. Juli 2005 5:48 17

A-88 Standard Photoelectric Sensors
Accessories
E3NT-AL 232 2 M
E3NT-AP1
Item
Dimensions (length x width x depth) 29.5 x 72.9 x 26.4 mm
Housing material ABS and PMMA (IR transparent)
Housing colour Black, RAL 9005
Assembly Snap mounting on sensor
Connection 2 m connecting cable with 9-pole sub-D connector
Ambient temperature range - 10 °C ... + 50 °C
Storage temperature range - 40 °C ... + 60 °C
Permission relative humidity 35% ... 85%, no condensation
Degreee of protection to
EN 60529 / IEC 529
IP 54
Emitted light IR communication element 880 nm
Rated operating voltage Via RS 232 interface from PC
Current consumption 6 mA
Item
Supply voltage 3 V DC
Battery type Button battery Ø 11.6 mm, thickness: 5.4 mm, 3 Vm, type: CR1/3N
Ambient temperature range + 10 °C ... + 40 °C
Storage temperature range - 40 °C ... + 60 °C (with no icing or condensation)
Ambient humidity Operation and storage: 35% ... 85% (with no icing or condensation)
Ambient environment No corrosive gases
Operation time period min. 5 hours operation with 1 new battery
Degree of protection IP20 (EN 60529)
Case material Case: ABS/PC
Base plate: Aluminium
Weight Approx. 42 g
Accessories: 1 Instruction sheet, 1 battery type CR1/3N
Max. distance for a visible beam spot about 50 m (depending on the ambient light and surface conditions)
Laser beam power < 1 mW
Laser class Laser Class II
F502-EN2-04.book Seite 88 Dienstag, 26. Juli 2005 5:48 17

A-89E3NT
E3NT
Characteristic data (typical)
E3NT-L17/L37 and E3NT-LH17/LH37
E3NT-L27/L47
E3NT-L17-20 and E3NT-L37-20
E3NT-R
Operating range
(90% remission)
Black/White - Error
(6% - 90% remission)
Hysteresis
Analog output current
(90% remission)
Parallel Operating range Black/White - Error
(6% - 90% remission, typical)
Hysteresis (typical)
Spotsize
-30
-20
-10
0
10
20
30
0 500 1000 1500 2000 2500
Object position X (mm)
Distance Z (mm)
E3NT
X
Z
Object
-10
-5
0
5
10
15
20
0 500 1000 1500 2000 2500
Black/White-error (%)
Distance Z (mm)
E3NT
X
Z
Object
0
5
10
15
0 500 1000 1500 2000 2500
Hysteresis (%)
Distance Z (mm)
E3NT
X
Z
Object
black object
white object
0
8
16
24
0 500 1000 1500 2000 2500
current I (mA)
Distance Z (mm)
4
12
20
-30
-20
-10
0
10
20
30
0 1500 3000
Object position X (mm)
Distance Z (mm)
E3NT
X
Z
Object
-4%
-3%
-2%
-1%
0%
1%
2%
3%
4%
Black/White-error (%)
0 3000 0%
2%
4%
6%
8%
10%
12%
Hystersis (%)
White
Black
0 3000
501015
200
100
0
Spotsize (mm)
Distance Z (mm)
F502-EN2-04.book Seite 89 Dienstag, 26. Juli 2005 5:48 17

A-90 Standard Photoelectric Sensors
Circuit diagram
Output
When use is made of the PNP or NPN output circuit, the output circuit that is not selected is deactivated. When used as a comple-
mentary output, NPN or PNP outputs act in antiphase as the switch state changes.
Input
The sensor inputs are realised in positive logic and detect a positive voltage level of more than 1 ms duration as a valid signal if
the voltage level is between 10 V and the power supply voltage.
Connectors
Push-pull output circuit
(Out1 at pin 4 / Out2 at pin 2)
Load connection
PNP NPN Analog
In2 at pin 2 In1 at pin 5
(not available for analogue output models)
Class Wire jacket
color
Connector
pin no.
Application
For DC Brown 1 Power
supply (+V)
White 2 Output or Input
Out2 / In2
Blue 3 Power
supply (0V)
Black 4 Output Out1
Grey 5* Analog Output or
Input In1
* Not connected for standard 4-pole connectors
Out1
Out2
0 V
+ U
S
T
PNP
T
NPN
1
4
(2)
3
E3NT
Internal circuit
Out1
Out2
0 V
+ UB1
4
2
3
L1
L2
Out1
Out2
0 V
+ UB1
4
2
3
L2
L1
+
-
+ UB1
A
n Out 5
0 V 3
I
O
0 V 3
Internal circuit
In2 2
+ US1
E3NT
0 V 3
E3NT
Internal circuit
In1 5
+ U
S
1
Brown
White
Blue
Black
Wire
colors
1
2
3
4
AE
D
C
B
F502-EN2-04.book Seite 90 Dienstag, 26. Juli 2005 5:48 17

A-91E3NT
E3NT
Nomenclature
Operation
Setting the switching points
The switching points can either be user set (Teach-in mode)
with a measured object positioned at the corresponding dis-
tance or can be set using the setting input, for remote setting.
For each output of the sensor (up to two), up to two switching
points can be user set.
Only one switching point is active in the foreground and back-
ground suppression modes.
For the 2-point window evaluation mode, two switching points
must be set.
Teaching the switching points in the normal mode
The sensor is set at the factory for both outputs to BGS, light
on.
1. Place the target object in front of the sensor at the desired
position.
2. Teach the switching point for output 1:
• Beginning with the key, press it simultaneously with the
ENTER key. Threshold level is obtained and the output/
LED is updated. Status LED is blinking.
• Using the / keys an adjustment of the switching point is
possible. The output/LED is updated immediately.
• Pressing the ENTER key for more than 2 seconds or af-
ter 2 minutes without any activation of the keys, the sensor
returns to normal operation. The status LED is turned off.
3. Teach the switching point for Output 2:
• Beginning with the key, press it simultaneously with the
ENTER key.
Main menu structure
When the ENTER key is pressed for 2 seconds, the sensor
switches from the normal mode to the TEACH menu path.
The sensor switches to each next menu path when the EN-
TER key is repeatedly pressed for 2 seconds. In the menu
paths, the required parameters can be selected by pressing
and keys.
To skip a menu path, you can also press the ENTER key
for 4 seconds.
[ENTER] Press the ENTER key < 1 second
[ENTER 2s] Press the ENTER key > 2 seconds.
LED display The distance from the measured object and the names of the menu levels during set-up of the sensor are
displayed by the 4-digit 7-segment LED display.
The display appears as red digits or letters.
If the sensor is set to a bar chart display, the distance from the measured object is displayed as a green
LED bar chart.
LED The switching status and the stability of the two outputs are signalled as follows by two LEDs, visible from
the top and the front of the sensor:
Yellow LED (Output 1) ON Object stably detected
Blinking Object not stable detected
OFF No object within range
Red LED (Output 2) ON Object stably detected
Blinking Object not stable detected
OFF No object within range
Status LED ON Set-up menu selected
Blinking Menu level with change of setting distance
OFF RUN (normal) mode
LED display Status LED optical IR element for data communication
Red LED
(Output 2)
Yellow LED
(Output 1)
Alignment aid
ENTERIncrementDecrement
≈
≈
tch
Normal
operation
Enter 2 s
5Et 0Pt
팫/ 팬 팫 / 팬팫/ 팬
Menu path
TEACH
Menu path
SET
Menu path
OPTIONS
Enter 2 s Enter 2 s Enter 2 s
Switching
point
settings
Additional
settings
Function
settings
Status LED
OFFON
≈
F502-EN2-04.book Seite 91 Dienstag, 26. Juli 2005 5:48 17

A-92 Standard Photoelectric Sensors
TEACH menu
1.) In the 2-point window evaluation mode, two switching points (A/B and C/D) can be set for each output. In the foreground and background suppression modes, only
one switching point (A and C) can be set for each output. Then, only these switching points, A and C, can be set in the TEACH menu path. B and D switching points
are not available.
2.) If connector pin 2 is set as an input, only the switching points for Output 1 can be set.
Ad-d
Output 2
Switch. point D
set
Ad-C
Output 2
Switch. point C
set
tc-A
Enter
Output 1
Switch. point A
teached
Ad-A
Set
Switch. point A
in m
with 팫/ 팬
tc-d
Output 2
Switch. point D
teached
tc-C
Output 2
Switch. point C
teached
tc-b
Output 1
Switch. point B
teached
tch
Output 1
Switch. point A
set
Ad-b
Output 1
Switch. point B
set
Teaching
Switching point A
Output 1
Teaching
Switching point B 1.)
Output 1
Teaching
Switching point C
Output 2 2.)
Teaching
Switching point D 1.)
Output 2 2.)
Setting of
Switching point A
Output 1
0 ... 2.5 m
in 1 cm increments
Setting of
Switching point B 1.)
Output 1
0 ... 2.5 m
in 1 cm increments
Setting of
Switching point C
Output 2 2.)
0 ... 2.5 m
in 1 cm increments
Setting of
Switching point D 1.)
Output 2 2.)
0 ... 2.5 m
in 1 cm increments
Set
Switch. point B
in m
with 팫/ 팬
Set
Switch. point C
in m
with 팫/ 팬
Set
Switch. point D
in m
with 팫/ 팬
Menu items
Enter 2 s
Enter 2 s
Enter
Enter
Enter
Enter Enter
Enter Enter
Enter Enter
Enter Enter
Normal
operation
Set
Switch. point A
in m
with 팫/ 팬
Set
Switch. point B
in m
with 팫/ 팬
Set
Switch. point C
in m
with 팫/ 팬
Set
Switch. point D
in m
with 팫/ 팬
Enter
Enter
Enter
Enter
Status LED
is blinking
Status LED
is blinking
Status LED is blinking
Enter 2 s
5Et
F502-EN2-04.book Seite 92 Dienstag, 26. Juli 2005 5:48 17

A-93E3NT
E3NT
SET menu
1.) If connector pin 2 is set as an input, the switch-on/off delay function canonly be set for Output 1. A second switching output is not available.
2.) If the switch-on/off delay is off in the OPTIONS menu path, the switch-on/off delay parameters do not appear in the SET menu path.
3.) The outputs behave differently depending on the switch-off delay functionthat is set in the OPTIONS menu path.
4.) The key lock becomes active again when no keys have been pressed for approx. 5 minutes.
The key lock can be temporarily cancelled by pressing the and keys for 4 seconds.
5.) The On-delay-setting tr-1 or tr-2 are only available if the switch-on/off de-lay in the OPTIONS menu path is set to %n-1.
tF-1
Set time
in ms
with팫/ 팬
Switch-off
delay
Output 1
parameterised
Switch-off
delay 2.) 3.)
Output 1
0 ... 9999 ms
in 1 ms decrements
0ut2 Select
function
with
팫/ 팬
b65
Background
suppression
F65
Foreground
suppression
2-P
Window
evaluation
Select
function
with
팫/ 팬
L-on
light-on
d-on
dark-on
0ut1 Select
function
with
팫/ 팬
b65
Background
suppression
F65
Foreground
suppression
2-P
Window
evaluation
Select
function
with
팫/ 팬
L-on
light-on
d-on
dark-on
5Et
Function
Output 1
Function
Output 2 1.)
tr-1
Set time
in ms
with팫/ 팬
Switch-on
delay
Output 1
parameterised
Switch-on
delay 2.) 5.)
Output 1
0 ... 9999 ms
in 1 ms decrements
tF-2
Set time
in ms
with팫/ 팬
Switch-off
delay
Output 2
parameterised
Switch-off
delay 2.) 3.)
Output 2 1.)
0 ... 9999 ms
in 1 ms decrements
tr-2
Set time
in ms
with팫/ 팬
Switch-on
delay
Output 2
parameterised
Switch-on
delay 2.) 5.)
Output 2 1.)
0 ... 9999 ms
in 1 ms decrements
di5P
Select
function
with
팫/ 팬
Ab5
Absolute
bAr
Bar
graph
Distance
display
L0CH
Select
function
with
팫/ 팬
oFF
Locking
OFF
on
Locking
ON
Key
lock 4.)
Menu items
Enter
Enter
Enter 2 s
Enter 2 s
Enter 2 s
Enter
Enter
Enter Enter
Enter Enter
Enter Enter
Enter Enter
Enter Enter
Enter Enter
EnterEnter
Normal
operation
Enter 2 s
0Pt
≈
F502-EN2-04.book Seite 93 Dienstag, 26. Juli 2005 5:48 17

A-94 Standard Photoelectric Sensors
OPTIONS menu
1.) If connector pin 2 is set as an input, the type of switch-on/off delay option can only be set for Output 1.
2.) If the ECO energy saving mode is on, the display is switched off if no keys are pressed for about 5 minutes. The display is switched on again when any key is
pressed.
3.) Firmware 1.10 and higher
r5et
Enter
pin5
Enter
Select
function
with
tcha
Teach input A
tchb
Teach input B
tchc
Teach input C
tchd
Teach input D
te5t
Test input
tri6
Trigger input
,ff
Input off
Enter
pin2
Enter
n-p
ec0
Select
function
with
,n
ECO-Mode
ON
,ff
ECO-Mode
OFF
ti-1
Select
function
with
,ff
Switch-on / switch-off
delay OFF
,n-1
Switch-on / switch-off
delay NORMAL
,n-2
Switch-off delay
Minimum pulse width
,n-3
Switch-off delay
Single pulse
ti-2
Select
function
with
,ff
Switch-on / switch-off
delay OFF
,n-1
Switch-on / switch-off
delay NORMAL
,n-2
Switch-off delay
Minimum pulse width
,n-3
Switch-off delay
Single pulse
flip
0pt
Enter 2 s
Enter 2 s
Enter 2 s
Enter 2 s
Enter
Enter
Enter
Enter
Enter
Enter
Enter
Enter
Enter
Select
function
with
in
Input
,ut
Output
Enter
Enter
Select
function
with
tcha
Teach input A
tchb
Teach input B
te5t
Test input
tri6
Trigger input
Enter
Select
function
with
,ut2
Switching
output
alar
Alarm output
Enter
Select
function
with
pnp
Plus
switching
npn
Minus
switching
c,pl
Comple-
mentary
Select
function
with
Enter
,n
,ff
Select
function
with
Enter
Enter
d,ne
Enter
Function
Switch-on /
switch-off
delay
Output 1
Function
Switch-on /
switch-off
delay
Output 2
1.)
Menu items
Energy saving mode
ECO
2.)
Turn display
Output
stage
Reset
to
Works default
Function
Connector pin 2
Function
Connector pin 5
Normal
operation
n,
ye5
Enter 2 s
Normal
operation
3.)
//
/
/
/
/
/
/
/
/
F502-EN2-04.book Seite 94 Dienstag, 26. Juli 2005 5:48 17

A-95E3NT
E3NT
SET menu E3NT-R
EnterEnter
/
Locking
OFF
Locking
ON
EnterEnter /
EnterEnter /
EnterEnter /
Enter
Enter 2 s
Enter
/
EnterEnter /
light-on
dark-on
Enter 2s
Menu items
Function of
switching output
Switch-on
delay of switching
output in ms
(regarding to setting
of delay function in
OPT menu)
Switch-on
delay of switching
output in ms
(regarding to setting
of delay function in
OPT menu)
minimum pulse
width / constant
pulse width of
switching output in
ms (regarding to
setting of delay
function in OPT
menu)
Key lock
Select
function
with
Set time
in ms
with
Set time
in ms
with
Set time
in ms
with
Select
function
with
Minimum pulse
width / constant
pulse width
parameterized
Switch-off delay
parameterized
Switch-on delay
parameterized
Normal
operation
F502-EN2-04.book Seite 95 Dienstag, 26. Juli 2005 5:48 17

A-96 Standard Photoelectric Sensors
OPTIONS menu E3NT-R
Enter
/
Enter
/
Front window
heating OFF
Front window
heating ON
Front window
heating AUTO
Enter
/
Plus
switching
Minus
switching
Enter
/
Delay function
OFF
Enter
/
OFF
Enter
Enter
/
Display turn
OFF
Display turn
ON
Enter
/
Input
Output
/
Test input
/
Alarm output
Enter
Enter
Test input
Switch-on / switch off
delay
Switch-off delay
minimum pulse width
constant pulse width
Enter
/
ECO-mode
OFF
ECO-mode
ON
Comple-
mentary
Enter
Menu items
Function
connector pin 2
Function
connector pin 5
Switching output
delay functions
Energy saving
mode ECO
Turn display
Output stage
Front window
heating (optional)
Reset to
works default
Normal
operation
Enter 2 s
Enter 2 s
Enter 2 s
Normal
operation
Enter
Enter
Enter
Enter
Enter
Enter
Enter
Enter
Select
function
with
Select
function
with
Select
function
with
Select
function
with
Select
function
with
Select
function
with
Select
function
with
Select
function
with
Select
function
with
Select
function
with
F502-EN2-04.book Seite 96 Dienstag, 26. Juli 2005 5:48 17

A-97E3NT
E3NT
Dimensions
Sensors
Accessoires (order separately)
E3NT-L17
E3NT-L27
E3NT-LH17
E3NT-L37
E3NT-L47
E3NT-LH37
14 33.4
14
27
M12
14.3
88.7
30 23.1 15.7
4.7
65.1
M5 (2x)
M5 (4x)
12.1
23.130
65.1
15.2 4.7
M12
14 33.4
14
27
88.7
M5 (2x)
M5 (4x)
Optical data link
E3NT-AL232 2m
cable 2 m
68,9
27 30
Sub-D connector 9-pole, female
F502-EN2-04.book Seite 97 Dienstag, 26. Juli 2005 5:48 17

A-98 Standard Photoelectric Sensors
Laser alignment aid
E3NT-AP1
68,9
27 30
Universal mounting bracket
E39-EL1
Adapter bracket
E39-EL2
ø4.2
±0.1
15
R30
74
10˚
7
R25
10.5
9.5˚
28
R82.74
10˚
55.5
92
4
90˚
ø4.2
±0.1
Rx
60
120±1
38±1
R30
30˚
84.5
26
25˚
R80.62
10
7
7
ø 5.3±0.1
14
2.5
46
50˚
11
Rx 2
5
17.5
28˚
8.5
30
R22.5
R28.4
15˚
39.5
31
108
Rx 7
5
95
ø6.
3±0.1
30
material: stainless steel 1.4305
45
43.4
20
22.5
15
7
ø5.2
10
20.3
2
ø6.3
7.8
R3
90˚
Rx
material: stainless steel 1.4305
F502-EN2-04.book Seite 98 Dienstag, 26. Juli 2005 5:48 17

A-99E3NT
E3NT
Replacement bracket for E3N with E3NT
E39-EL3
3
50
73
90˚
70
R6
4x
R2
4 x
Ø
6.5
6
12
14
±0.3
12x
Ø
5.2
14 ±0.3
10˚
30
58
10˚
21
30
7
10˚
35
15
6
5˚
R60
material: stainless steel 1.4305
F502-EN2-04.book Seite 99 Dienstag, 26. Juli 2005 5:48 17

A-100 Standard Photoelectric Sensors
Precautions
Mounting Directions
Sensor assembly
Contrary to sensors with single triangulation, E3NT with dou-
ble triangulation, allows the measured object's direction of
motion to be in all three directions. Thus, the rotatory position
of the sensor about its optical axis can be chosen freely.
If the light spot is not completely on the same plane as the tar-
get object (minimum object size) the distance is not deter-
mined and malfunction can occur. If necessary a trigger signal
or timer function has to be applied.
The sensor must be fitted so that:
• It is correctly aligned before it is adjusted
• It is protected as far as possible against vibration and shock
• It is protected as far as possible against extraneous incident
light
• It is protected as far as possible against damage and soiling
• Electrical connection is possible
• It is as accessible as far as possible for maintenance work
• Operation of the push buttons is possible
• The display is visible.
Sensor's assembly direction
As far as possible, the sensor's optical surface should be
aligned parallel to the surface of the measured object.
If the measured object has a glossy, reflecting surface, the
sensor's optical system should be tilted by 5 … 10° in relation
to the surface of the measured object.
If there is a reflecting surface in parallel with the sensor's op-
tical axis, this might lead to unstable switching states.
Therefore, reflecting objects within the sensor's optical axis
should be avoided.
If this should not be possible, the reflecting surface should not
be parallel to the sensor's optical axis, but should be rotated
by at least 10°.
Mirror-like objects can cause malfunction inside and outside
the sensing range. Avoid mirror-like objects in or close to the
optical axis.
Inspection and Maintenance
Cleaning
Do not use any scratching or abrasive cleaning materials. The
protective pane of the optical system might get damaged.
The sensor requires no maintenance.
Remove dirt build up from the optical system and the display
at regular intervals only with a soft, non abrasive fabric. Re-
sidual dirt may have influence on the switching point and dis-
play accuracy.
90˚
90˚
detection object
90˚
5 … 10˚˚
detection object
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. E332-E2-02-X
F502-EN2-04.book Seite 100 Dienstag, 26. Juli 2005 5:48 17