Micro Detectors SB400M User manual

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M.D. Micro Detectors
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SB400M
Safety Modules
LANGUAGE
Installation and Operation Manual
ENGLISH
M.D. Micro Detectors
CAT8ESB1261501
1/19
!
!

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M.D. Micro Detectors
Strada S. Caterina, 235
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SB400M
Safety Modules
LANGUAGE
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CONTENTS
1.0 INTRODUCTION ..................................................................................................... 3
2.0 SB400M MODULE ................................................................................................... 4
2.1 OPERATING MODES DESCRIPTION .................................................................... 4
2.1.1 AUTOMATIC.................................................................................................. 4
2.1.2 MANUAL........................................................................................................ 5
2.1.3 CONNECTION OF K1 K2 EXTERNAL CONTACTORS....................................... 6
2.2 CONNECTION EXAMPLES.................................................................................... 7
2.2.1 CONNECTION OF AD SRM WITH AN LS BARRIER (MANUAL
MODE,WORKING RANGE=HI, K1K2 EXTERNAL CONTACTORS, TIMEOUT
MUTING=30s) ........................................................................................................... 7
2.3 MUTING FUNCTION ............................................................................................ 7
2.3.1 Muting sequence .......................................................................................... 8
2.3.2 MUTING OVERRIDE FUNCTION.................................................................... 9
2.3.3 Override with mantained action control .................................................... 10
2.3.4 Override with pulse control........................................................................ 10
2.4 INSTALLATION AND ELECTRICAL CONNECTIONS............................................ 11
2.5 INSTALLATION AND ELECTRICAL CONNECTIONS............................................ 11
2.5.1 Characteristics of the output circuit........................................................... 12
2.5.2 Use of K1 and K2 auxiliary contact elements............................................. 12
2.5.3 Warnings regarding the connection cables................................................ 12
2.6 SIGNALS DESCRIPTION.................................................................................... 13
2.7 The RESTART command.................................................................................... 14
2.8 K1K2 FEEDBACK input ...................................................................................... 14
2.9 SYSTEM STATUS output.................................................................................... 14
2.10 DIMENSIONS .................................................................................................... 14
2.11 TECHNICAL DATA SB400M ............................................................................... 15
2.12 STATUS INDICATORS / FAULT DIAGNOSIS ..................................................... 15
2.12.1 Status indicators (BASE MODULE) ............................................................. 16
2.12.2 Status indicators (BASE MODULE) ............................................................. 16
2.12.3 Status Fault diagnosis ................................................................................ 16
2.12.4 Status indicators (MUTING MODULE) ........................................................ 17
2.13 PERIODIC TESTS TO DO EVERY YEAR .............................................................. 18
2.14 GUARANTEE ...................................................................................................... 19
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!This symbol indicates an important personal safety warning. Failure to comply with the warning
may result in very high risk for exposed personnel.
1.0 INTRODUCTION
The SB400M interface, connected to an IEC 61496 – ½certified type 4 safety light curtain and
equipped with two autocontrolled PNP type solid-state outputs, is a type 4 ESPE (Electro sensitive
Protective Equipment).
The other characteristics indicated above remaining constant, if the light curtain is type 2, the
entire ESPE will be type 2.
The SB400M main features are the following:
•Inputs for the connection of one safety barrier with fail safe outputs
•Restart manual or automatic selectable
•2 N.O. outputs with guided contact safety relays
•1 system monitor PNP output
•1 external contactors feedback input
•Muting function with two sensors logic
•1 muting function enable input
•1 muting lamp output
•Muting override function integrated
•Selectable muting timeout
The safety modules also guarantees that:
•the output lines are open if the barrier is intercepted;
•the output lines are enabled only with correct response times;
•in manual mode, maintenance of the RESTART contact closed is not interpreted as AUTO
mode.
!For safe use of the device, it is essential to read and understand the contents of this handbook.
!Failure to comply with the prescriptions indicated in this handbook may result in very high risks
for the operating personnel of the machine protected.

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2.0 SB400M MODULE
2.1 OPERATING MODES DESCRIPTION
OPERATING MODES SELECTION
TERMINAL 6
TERMINAL 15
OPERATION
0 Vdc
+24 Vdc
Automatic
+24 Vdc
+24 Vdc through a N.O. contact
Manual
0 Vdc
0 Vdc
Non-permissible
conditions
+24 Vdc
+24 Vdc
Table!1!
2.1.1 AUTOMATIC
In this operating mode, the outputs of the safety module follow the status of the photocell:
•with the protected area free (outputs of the barrier active), the relay outputs of the control
unit are active.
•with the protected area occupied (outputs of the barrier de-activated), the relay outputs of
the safety module are de-activated.
!
Figure!1
NOTE: refer to the "CONNECTON EXAMPLES" section to see the muting signals connection
! Use in manual mode (start/restart interlock activated) is mandatory in the case in which the
safety device controls an access protecting a danger zone and once a person has passed through
the opening, he/she may remain in the danger zone without being detected (use as trip device
according to IEC 61496). Failure to comply with this rule may result in very serious risks for the
persons exposed.

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!Check correct functioning of the entire safety system (control unit+barrier) following each re-
installation. In particular, if the original operating mode was Manual, check that the unit has been
reconfigured in this mode.
2.1.2 MANUAL
In this operating mode, the outputs of the control unit are activated only if the protected area is
free and after sending the RESTART signal to the control unit using the push-button or by means
of a specific command on the RESTART input (terminal 15).
Once the protected area has been occupied, the relay outputs are deactivated.
The sequence described above must be repeated in order to re-activate these.
The RESTART command is active with with a 0 Vdc ---> +24 Vdc transition.
The minimum duration of the command is 100 ms.
!
Figure!2!
NOTE: refer to the "CONNECTON EXAMPLES" section to see the muting signals connection
!
!

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2.1.3 CONNECTION OF K1 K2 EXTERNAL CONTACTORS
In this operating mode, the outputs of the control unit are activated only if the protected area is
free and after sending the RESTART signal to the control Control of external contactors K1K2 can
be activated in both operating modes. If this control is to be used, the set of normally closed
contacts of the external contactors must be connected to terminal 20 of the safety module (Figure
8 and Figure 9).
!
Figure!3
Automatic functioning with K1K2 relays
!
Figure!4
Manual operation with K1K2 relays
NOTE: refer to the "CONNECTON EXAMPLES" section to see the muting signals connection

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2.2 CONNECTION EXAMPLES
2.2.1 CONNECTION OF AD SRM WITH AN LS BARRIER
(MANUAL MODE,WORKING RANGE=HI, K1K2 EXTERNAL
CONTACTORS, TIMEOUT MUTING=30s)
!
Figure!5!
!
2.3 MUTING FUNCTION
!The muting function is a temporary suspension of the safety light curtain’s protective function.
Carefully check your risk analysis in order to assess whether the muting function is compatible with
your application and what additional measures have to be taken.
The muting function generates a temporary, automatic interruption of the protective action of the
barrier in order to permit normal transit of material through the guarded opening.
The muting function is activated when the system detects the object that interrupts the opening
protected. In other words, when the system recognizes the material and distinguishes between
this and any operator (in a potentially dangerous situation), it is enabled to bypass the light curtain
temporarily, allowing the material to pass through the opening (Figure 11).
The muting sensors form the sensing system that decides whether the muting function is to be
activated (or not). Control of the dangerous opening can be de-activated only by a correct
sequence of interruption of the beams of the muting sensors.

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Figure!6
Muting on palletizing system application example
2.3.1 Muting sequence
The timing diagrams in Figure 12 and Figure 13 show the correct signal sequence. The muting
function is initiated by the contemporary occurrence of two events :
•When the two beams of the muting sensors are activated within a time limit of 4 sec.
•When the muting enable signal (terminal 11) is high (+24 Vdc)
The muting function is terminated by one of the following events:
•As soon as one of the muting sensors is no longer activated whichever occurs first.
•When the muting time-out limit is expired; in this case the OSSDs are brought to the off-
state. The muting time-out limit can be selected at 30 s or ∞.
!The muting enable command will only enable the muting function and should be generated at
the appropriate time by the machine control system (e.g. When the muting function is needed); it
has no effect on the deactivation of the muting function. If not used, fix the terminal 11 at +24
Vdc.
!Remember that muting is a temporary automatic suspension of the safety function. This means
that a time limit is always mandatory. If a time out limit of 30 s is a too short time for a particular
machine cycle, the configuration without time monitoring (t = ∞) can be selected. In this case
alternative solutions or additional measures shall be implemented to detected the condition of a
muting function permananently active caused by accumulation of faults or by the muting sensors
activated all the time. For example for the application of guarding the openings of a conveyor
system (palletizers) by monitoring appropriate signals generated by the transport system to
determinate if and when a pallet is in the detection zone.

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Figure!7
Muting Cycle
!
Figure!8
Muting cycle closed by a timeout
2.3.2 MUTING OVERRIDE FUNCTION
The OVERRIDE function must be used when the machine stops due to incorrect muting activation
sequences with the material obstructing the guarded opening.
In this situation, the OSSD outputs are not active as the barrier and/or at least one Muting sensor
is occupied. In this condition the OVERRIDE request LED blinks (ref. "Status Indicators").

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!This function activates the OSSD outputs making it possible to remove the material that is
obstructing the protected field.
!Throughout the phase during which the OVERRIDE function is active, the OVERRIDE/MUTING
light blinks. Check efficiency of this light periodically (during the Muting or Override phases).
!Warning!! The Override with pulse command automatically activates the outputs of the light
curtain until both the light curtain and the muting sensors are free of obstacles again. During this
period, the light curtain is unable to protect access to the guarded opening. Therefore, all
operations must be carried out under the strict supervision of expert personnel.
!During the installation of the module be sure to avoid short circuits between the contacts 7 and
8.
The operator will use the Override mode previously selected.
1. Override with mantained action control.
2. Override with pulse control.
2.3.3 Override with mantained action control
This function is activated driving terminals 7 and 8 of the control unit to +24 Vdc at the same time
(maximum delay = 400 ms) using for example a 2-way key selector with spring return;
PIN 7
PIN 8
CONDITION
0
0
Normal operation
24 Vdc
24 Vdc
OVERRIDE request
The maximum override duration is 15 minutes; it can be stopped for two different causes.
@ When the selector is released or if the 15 minutes has been elapsed, override ends, de-
activating the OSSD outputs, turning off the muting lamp and showing normal condition on the
display. A new override condition can be started, releasing and rearming the selector.
@ Once the opening has been cleared and the sensors are free again, override ends and GUARD
condition (control unit in normal operation) is activated without necessity of further commands.
2.3.4 Override with pulse control
This function is activated inverting (maximum delay = 400 ms) the condition of pin 7 and 8 of the
receiver using for example a push button (switch). During the override the 7 and 8 are not
controlled.
PIN 7
PIN 8
CONDITION
0
24 Vdc
Normal operation
24 Vdc
0
OVERRIDE request
!The override condition can last a maximum of 15 minutes (repeatable).

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!The function can only be re-started by pressing the pushbutton again (subject to the following
conditions):
1. Maximum total OVERRIDE time (after n consecutive requests) = 60 min
2. Maximum number of consecutive requests for OVERRIDE = 30.
!The override condition ends when the barrier and sensors are cleared (entrance clear) and the
GUARD condition is re-enabled (barrier fully operational) without sending any further commands.
!The timer (point 1) and counter (point 2) are reset when one of the following conditions occurs:
- A correct muting sequence.
- A system reset (switched off and then turned on).
2.4 INSTALLATION AND ELECTRICAL CONNECTIONS
Figure 9
LED
COLOR
STATUS
CONDITION
S1
Green
OFF
Muting sensor 1 free
ON
Muting sensor 1 interrupted
S2
Red
OFF
Muting sensor 2 free
ON
Muting sensor 2 interrupted
MUT
Yellow
OFF
Correct operation
ON
Muting active
Blinking
Override request
Muting fail (only with FAIL
LED ON) *
IN
Green
OFF
Barrier interrupted
ON
Barrier free
FAIL
Red
OFF
No Failure
ON
Failure detected *
GUARD
BREAK
Green /
Red /
Yellow
RED
Output relays opened
RED blinking
The number of blinking shows
the kind of FAIL (only with
FAIL is ON) *
GREEN
Output relays closed
YELLOW
Barrier free – Output relays
opened (only in manual
mode)
Table 2
* M.D. MICRO DETECTORS TO THE “FAULT DIAGNOSI” SECTION
TO HAVE A DETAILED EXPLANATION OF THE POSSIBLE FAULT
2.5 INSTALLATION AND ELECTRICAL CONNECTIONS
!Install the SB400M safety module in an environment with a protection rating of at least IP54.
!If more modules SB400M must be installed in the same board panel, in order to avoid
overheatings, maintain between them one minimal distance of 2 cm.
!The SB400M control unit must be supplied with a 24 Vdc ±20%.
!The external power supply must comply with the standard EN 60204-1.
!During the installation of the SB400M control unit be sure to avoid short circuits between the
contacts 17 and 18.

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2.5.1 Characteristics of the output circuit
For the output circuit, the control unit uses two guided contact safety relays.
These relays are rated by the manufacturer for voltage and current values above those indicated
in the technical data; however, to assure correct insulation and to avoid damage or premature
aging, protect each output line with a 4 A slow-blow fuse and check that load characteristics
comply with the indications given in the table below.
Minimum switching voltage
18 Vdc
Minimum switching current
20 mA
Maximum switching voltage
250 Vac
Maximum switching current
2 A
2.5.2 Use of K1 and K2 auxiliary contact elements
For loads with higher voltage and current characteristics than those indicated in the table above,
use of auxiliary external relays or contactors suitable for the load to be controlled is recommended.
•The K1 and K2 auxiliary contactors or relays must be of the guided contact safety type.
•Referring to the table below, pay particular attention to the configuration of the control
contacts on terminal 20 and that of the contacts of use.
Relay K1
Relay K2
Control contacts
K1-1 normally closed
K2-1 normally closed
Use contacts
K1-2 normally open
K2-2 normally open
•Control contacts K1-1 and K2-1 (terminal 20) must be able to switch a current of 20 mA
and a voltage of 24 Vdc.
•To increase the electrical life of internal relays A and B, it is advisable to use anti-
disturbance devices which must be connected across the coils of K1 and K2.
2.5.3 Warnings regarding the connection cables
•For light curtain/control unit connections of more than 50 m, cables with a cross-section of
at least 1 mm2must be used.
•It is good practice to separate the power supply of the control unit from that of other
electrical appliances (electrical motors, inverters, frequency variators) or other sources of
disturbance.
•The path of the connection cables between the control unit and the sensors, the
connection referring to the test command and feedback contacts connected to terminal 20
must be different from that of other power cables.
!

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2.6 SIGNALS DESCRIPTION
TERMINAL
NUMBER
SIGNAL NAME
TYPE OF SIGNAL
DESCRIPTION
1
SENSOR 1
Input
Muting Sensor n°1
2
SENSOR 2
Input
Muting Sensor n°2
3
24 Vdc
Input
Power supply 24 Vdc
4
TIMEOUT 1
Input
Timeout selection n°1 *
5
TIMEOUT 2
Input
Timeout selection n°2 *
6
MAN / AUTO
Input
Manual/Automatic configuration
7
OVERRIDE 1
Input
Override selection n°1 **
8
OVERRIDE 2
Input
Override selection n°2 **
9
N.C.
-
-
10
MUTING LAMP
Output
Muting lamp output
11
MUTING ENABLE
Input
External muting enable input
12
Relay B NO 1
Output
Safety relay B, contact 1 (N.O.)
13
0 Vdc
Input
Power supply 0 Vdc
14
PE
-
Ground connection
15
RESTART
Input
Restart command Input
16
N.C.
-
-
17
INPUT1 BARR
Input
Barrier input 1
18
INPUT2 BARR
Input
Barrier input 2
19
N.C.
-
20
K1/K2 (Feedback)
Input
K1K2 external contactors feedback
21
SYSTEM STATUS
Output
Output safety relays status
22
Relay B NO 2
Output
Safety relay B, contact 2 (N.O.)
23
Relay A NO 1
Output
Safety relay A, contact 1 (N.O.)
24
Relay A NO 2
Output
Safety relay A, contact 2 (N.O.)
Table 3
* M.D. MICRO DETECTORS TO THE Table 4 FOR THE SELECTION OF THE MUTING TIMEOUT
Read carefully the "muting sequence" section to select the right timeout
SELECTION OF THE MUTING TIMEOUT
TERMINAL 4
TERMINAL 5
DURATA TIMEOUT
0 Vdc
+24 Vdc
30 s
+24 Vdc
0 Vdc
Infinite
0 Vdc
0 Vdc
Conditions
not allowed
+24 Vdc
+24 Vdc
Table 4
** REFER TO THE Table 5 FOR THE SELECTION OF THE OVERRIDE
SELECTION OF THE MUTING TIMEOUT
TERMINAL 7
TERMINAL 8
DURATA TIMEOUT
0 Vdc
0 Vdc
Spring return key
0 Vdc
+24 Vdc
Push button
+24 Vdc
0 Vdc
Conditions
not allowed
+24 Vdc
+24 Vdc
Table!5

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2.7 The RESTART command
•The RESTART command must be sent to the control unit connecting terminal 15 to the +24
Vdc.
•The contact used for the RESTART command must be able to switch a voltage of 24 Vdc
and a current of 20 mA (guaranteeing a closing time > 100 ms). This data is particularly
important in the case of automatic management of sending of the RESTART command, for
example using a PLC.
•The SYSTEM RESET TIME is obtained adding the reset time of any external contactors
K1K2 to the reset time of the SB400M control unit (100 ms).
•In the case of manual activation, a normally open external button can be used, temporary
closing of which generates the RESTART command.
!The Restart command must be installed outside the danger area in a position where the danger
area and the entire work area concerned are clearly visible.
!It must not be possible to reach the RESTART control from inside the danger area.
2.8 K1K2 FEEDBACK input
Using the K1 and K2 auxiliary safety contactors with guided contact safety type, it is necessary to
connect the +24 Vdc to the K1K2 FEEDBACK through the series of the K1-1 e K2-1 N.O. control
contacts. The control of the correct switching of K1 and K2 is performed with a delay of 300ms
after the real command. When the K1-1 e K2-1 N.O. control contacts are not used (or no control is
provided) it is mandatory to connect the terminal 20 (K1K2 FEEDBACK) to the terminal 21
(SYSTEM STATUS).
2.9 SYSTEM STATUS output
The SYSTEM STATUS output reports exactly the output safety relays status :
•When the output relays are opened, the SYSTEM STATUS reports 0 Vdc.
•When the output relays are closed, the SYSTEM STATUS reports +24 Vdc.
2.10 DIMENSIONS
!
Figure!10

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2.11 TECHNICAL DATA SB400M
Safety category
Type 4
Power supply
Vdc
24 ± 20%
Power requirement
W
5 max
Output
Relay
2 N.O. contacts (2 A; 250 V)
Response time
ms
20 max
Operating modes
Manual or Automatic, selectable from terminal block
External Relay control
2 N.C. contacts (20 mA; 24 Vdc)
Number of connectable
barriers
1 (with 2 PNP safety static outputs)
Muting sensors input
2 sens. (24 Vdc; PNP; dark-on)
Muting enable input
24 Vdc, PNP
Time-out Override
min
15
System Status Output
100 mA; 24 Vdc
Muting lamp output
24 Vdc / 0,5 ÷ 5 W
Connections
Terminal block with protection against reversal of
polarity
Status indicator
LEDs
Power On – Barrier status – Fail
Max. length of connections
M
100
Operating temperature
°C
0 ÷ 55
Enclosure protection rating
IP 20
Terminal block protection
rating
IP 2X
Fastening
Fast attachment to rail according to EN 50022-35
Dimensions (h x w x d)
mm
99 x 22,5 x 114,5
Weight
g
150
B10d
800.000
Device lifetime
20 years
Safety level
Type 4
IEC 61496-1:2004
IEC 61496-2:2006
SIL 4
IEC 61508:1998
SILCL 4
IEC 62061:2005
Cat. 4
ISO 13849-1 : 2006
Load
Number of Commutations
PFHd *
DCavg #
MTTFd #
PL #
CCF #
2 A @
230Vac
1 every 30 s
2,80E-08
98,89%
25,97
d
80%
1 every min
1,71E-08
98,78%
49,92
e
80%
1 every hour
6,58E-09
98,78%
100,00
e
80%
1 every day
6,42E-09
96,25%
100,00
e
80%
0,5 A
@
24Vdc
1 every 30 s
5,03E-08
98,94%
13,25
d
80%
1 every min
2,80E-08
98,89%
25,97
d
80%
1 every hour
6,76E-09
97,01%
100,00
e
80%
1 every day
6,43E-09
96,28%
100,00
e
80%
Table!6
* IEC 61508
# ISO 13849-1
2.12 STATUS INDICATORS / FAULT DIAGNOSIS

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2.12.1 Status indicators (BASE MODULE)
LED
MEANING
IN
FAIL
GUARD / BREAK
(GREEN)
(RED)
(RED/YELLOW/GREEN)
ON
ON
Red
Power up test
OFF
OFF
Red
Photocell interrupted
Output relays opened
ON
OFF
Yellow
Photocell free
Output relays opened
ON
OFF
Green
Photocell free
Output relays closed
Table!7
2.12.2 Status indicators (BASE MODULE)
LED
MEANING
SENSOR1
(YELLOW)
SENSOR2
(YELLOW)
MUTING (YELLOW)
ON
ON
ON
Power up test
OFF
OFF
OFF
Both the sensors are
free
ON
OFF
OFF
Sensor 1 interrupted
OFF
ON
OFF
Sensor 2 interrupted
ON
ON
ON
Muting active
Shows the
sensor_1 status
Shows the
sensor_2 status
Blinking
Override request
Table!8
2.12.3 Status Fault diagnosis
LED
MEANING
IN
FAIL
GUARD/BREAK
GREEN
RED
RED/GREEN (pulses LED Red)
OFF
ON
(2 pulses)
Internal fault
OFF
ON
(3 pulses)
Internal relays fault
OFF
ON
(4 pulses)
K1K2 external relays fault
OFF
ON
(5 pulses)
User configuration failure
OFF
ON
(6 pulses)
User configuration changed
without system restart: Switch
off and restart the module to
solve the problem. At the switch
on verify the new user
configuration
OFF
ON
(7 pulses)
Possible overload or
SYSTEM STATUS
connection error
Table!9

!
M.D. Micro Detectors
Strada S. Caterina, 235
41122 Modena Italy
Tel. [phone]
Fax [phone]
www.microdetectors.com
[email protected]m!
SB400M
Safety Modules
LANGUAGE
Installation and Operation Manual
ENGLISH
M.D. Micro Detectors
CAT8ESB1261501
17/19
!
2.12.4 Status indicators (MUTING MODULE)
NOTE: The following status signals are present with the base module permanently light on.
LED
MEANING
SENSOR
1
SENSOR2
MUTING
YELLOW
YELLOW
YELLOW
OFF
OFF
(2 pulses)
Bad connection of the
muting lamp, lamp
not present or in
overload
OFF
OFF
(3 pulses)
Muting timeout
wrong configuration
OFF
OFF
(4 pulses)
Wrong override
configuration
at the power up
Shows the
sensor_1
status
Shows the
sensor_2
status
(5 pulses)
Instable Muting
Sensor
Blinking
Blinking
Blinking
Override with pulse
command expired
!If it is not possible to clearly identify the malfunction and to to remedy it, stop the machine and
contact the M.D. Micro Detectors's Assistence Service.
!

!
M.D. Micro Detectors
Strada S. Caterina, 235
41122 Modena Italy
Tel. [phone]
Fax [phone]
www.microdetectors.com
[email protected]m!
SB400M
Safety Modules
LANGUAGE
Installation and Operation Manual
ENGLISH
M.D. Micro Detectors
CAT8ESB1261501
18/19
!
2.13 PERIODIC TESTS TO DO EVERY YEAR
!
!

!
M.D. Micro Detectors
Strada S. Caterina, 235
41122 Modena Italy
Tel. [phone]
Fax [phone]
www.microdetectors.com
[email protected]m!
SB400M
Safety Modules
LANGUAGE
Installation and Operation Manual
ENGLISH
M.D. Micro Detectors
CAT8ESB1261501
19/19
!
2.14 GUARANTEE
M.D. Micro Detectors warrants that each SB400M unit in new ex-factory condition, in conditions of
normal use, is free of defects in the materials and of manufacturing defects for a period of 24
months.
In this period, M.D. Micro Detectors undertakes to eliminate any faults in the product through
repair or replacement of the faulty parts, completely free of charge as regards material and labor.
However, M.D. Micro Detectors reserves the right to replace the entire faulty appliance with
another equivalent appliance or with the same characteristics instead of repairing this.
Validity of this warranty is regulated by the following conditions:
• The user must inform M.D. Micro Detectors of the fault within 24 months from the date of
delivery of the product.
• The appliance and its components must be in the conditions in which they were delivered by
M.D. Micro Detectors.
• The serial numbers must be clearly legible.
• The fault or defect has not been caused directly or indirectly by:
– Improper use;
– Non-compliance with instructions for use;
– Carelessness, inexperience, incorrect maintenance;
– Repairs, modifications, adaptations not carried out by M.D. Micro Detectors personnel,
tampering, etc.;
– Accidents or impacts (also due to transportation or causes of force majeure);
– Other causes not to be ascribed to M.D. Micro Detectors.
Repairs will be carried out at the M.D. Micro Detectors laboratories to which the material must be
delivered or dispatched: transport risks and the risks of any damage or loss of the material during
shipment are the responsibility of the user.
All products and components replaced become the property of M.D. Micro Detectors.
M.D. Micro Detectors does not recognize any other warranties or rights except for those
specifically described above; therefore, no claims for damages may be submitted for expenses,
interruption of business or other factors or circumstances in any way related to failure of the
product or of one of its parts.
Do not dispose of WEEE as mixed urban waste, arrange separate collection.
Contact the appropriate authorized collection points or the
manufacturer. (2012/19/UE)
Precise, complete compliance with all the rules, instructions and prohibitions indicated in this
handbook is an essential requirement for correct functioning of the safety interface.
M.D. Micro Detectors s.p.a. therefore declines any responsibility for all and anything resulting from
failure to comply, even partially, with such indications.
Characteristics subject to change without notice.
Total or partial reproduction is forbidden without the prior authorization of M.D. Micro Detectors.