dol sensors DOL 25 NPN DOL Manual

DOL 25 PNP/NPN/SCR
EN
TECHNICAL USER’S GUIDE

EN-DOL25 SENSORTECHNICAL USER’S GUIDE
EN-DOL 25SENSOR TECHNICAL USER’S GUIDE
PRODUCT DESCRIPTION
DOL 25 is a small capacitive proximity sensor with adjustable sensitivity for detection of grain and solids. The sensor
can have adjustable OFF time delay.
DOL 25-PNP/NPN
The sensor is DC supplied and has two NPN or PNP outputs (NO and NC).
DOL 25-SCR
The sensor is AC supplied and has a two-wired connection (NC or NO).
MOUNTING GUIDE
Fields of application:
•Control of emptying or filling various
containers
Mounting methods, Figure 1:
•The sensor mounted in a PG21 gland
•The sensor mounted hanging in a bush
Figure 1
Figure 2
Mounting of the non-flushed version:
The sensor can be supplied in either a flushed or a non-
flushed version. The non-flushed sensor is sensitive on
the side, and therefore it is not to be placed closer to
another item than shown in Figure 2. If these
measurements are not observed, the sensor will have a
different sensitivity than the one given.
Figure 3
Mounting of the flushed version:
The flushed sensor is not sensitive on the side, and
therefore it can be placed flush with the mounting
surface.

EN-DOL 25SENSOR TECHNICAL USER’S GUIDE
INSTALLATION GUIDE
Figure 4
PNP (Figure 4)/NPN (Figure 5) electric installation:
Connect the sensor to a DC supply and connect the loads
between the outputs and V- for the PNP version and V+
for the NPN version. The sensor is protected against
polarity errors, and the outputs are protected against
overload and short circuit. If the output current exceeds
the nominal output current, the output function is
switched off. Eliminate the short circuit or choose a
smaller load to eliminate the error. The current limitation
error is indicated on the sensor by two quick flashes
followed by a pause.
Figure 5
NC
Figure 6
SCR (Figure 6) electric installation:
The sensor is connected in series with the load. The
polarity is unimportant.
Figure 7
Functional description, Figure 7:
When material is in front of the sensor, the NO output is
ON and the NC output is OFF. When the material
disappears the timer will start, and after OFF time delay
the outputs will change condition.
Status on the sensor is indicated by an orange LED.
Sensor
NO-contact
NC-contact
LED
OFF
ON
OFF
ON
OFF
ON
ON
OFF
Flashing
Figure 8
The sensor can be supplied with either
•no setting
•one setting
•two settings
Setting of sensivitity, Figure 8:
The sensitivity is reduced by turning the potentiometer
counter-clockwise and increased by turning the
potentiometer clockwise.
Setting of time delay, Figure 8:
The time delay is reduced by turning the potentiometer
counter-clockwise and increased by turning the
potentiometer clockwise.
LED
Sensor
Output on
Output off
Output on
Output off
Time delay
Sensitivity
On
Off
NC
NO
NC
NO
(Make)
(Break)
90-250 V AC
50-60 Hz
10-36 V DC
10-36 V DC

EN-DOL 25SENSOR TECHNICAL USER’S GUIDE
Figure 9
Sensor dimensions, Figure 9:
Cable length 2 m
Conductor dimensions 4 x 0.26 mm2(AWG22)
Conductor colours
Brown
V+
Black
NO output
White
NC output
Blue
V-
M12 sensor plug
1. V+
2. NC output
3. V-
4. NO output
Conductor colours and pin numbers are according to
IEC60947-5-2.
TECHNICAL DATA
DOL 25 PNP/NPN
DOL 25 SCR
Supply voltage (Ue)
10 –36 V DC
Supply voltage (Ub)
90-250 V AC
Max. ripple
10 %
Rated current (Ie)
500 mA
300 mA
Voltage drop, output ON
< 2.5 V
< 10 V AC RMS
Output function
NC and NO
NC or NO
No-load supply current
< 6 mA
Time delay at start-up
< 100 mS
< 100 mS
Time delay ON
< 100 mS
< 100 mS
Time delay OFF
0-600 sec.
0-600 sec.
Temperature, operation
-20 - +70 ºC
-20 - +70 ºC
Temperature, storage
-30 - +80 ºC
-30 - +80 ºC
Protection class
IP67
IP67
Approvals
CE and C-UL
CE and C-UL
Ø18 mm
Ø30 mm
Non-flushed
Flushed
Non-flushed
Flushed
Operating distance (Sn) adjustable
0-10 mm
0-5 mm
0-20 mm
0-10 mm
Effective operating distance (Sa)
0 ≤ Sa ≤ 0.8* Sn mm
Repetition accuracy (R)
5 %
Hysteresis (H)
< 0.15* Sn mm
MAINTENANCE INSTRUCTIONS
No maintenance is required. However, it may be necessary to clean around the sensor, if it is placed in a dirty
environment