Nexen Paper Checker PC210 Instruction Manual

WEB CONTROL PRODUCTS
User Manual
Paper Checker
PC210
FORM L-20341-E-0208

In accordance with Nexen’s established policy of constant product improvement, the specifications contained in this
manual are subject to change without notice. Technical data listed in this manual are based on the latest information
available at the time of printing and are also subject to change without notice.
Technical Support: 800-843-7445
[phone]
www.nexengroup.com
Copyright 2008 Nexen Group, Inc.
Nexen Group, Inc.
560 Oak Grove Parkway
Vadnais Heights, Minnesota 55127
ISO 9001 Certified
Read this manual carefully before installation and operation.
Follow Nexen's instructions and integrate this unit into your system with care.
This unit should be installed, operated and maintained by qualified personnel ONLY.
Improper installation can damage your system or cause injury or death.
Comply with all applicable codes.
DANGER

3
FORM NO. L-20341-E-0208
Table of Contents
THEORY OF OPERATION------------------------------------------------------------------------------------------------------------------4
INSTALLATION-----------------------------------------------------------------------------------------------------------------------------------4
ELECTRICAL CONNECTIONS-----------------------------------------------------------------------------------------------------------6
FRONT PANEL CONTROLS & INDICATORS --------------------------------------------------------------------------------------7
SETUP CONTROLS---------------------------------------------------------------------------------------------------------------------------8
OPERATION --------------------------------------------------------------------------------------------------------------------------------------9
CALIBRATION ---------------------------------------------------------------------------------------------------------------------------------13
SPECIFICATIONS----------------------------------------------------------------------------------------------------------------------------15
WARRANTY-----------------------------------------------------------------------------------------------------------------------------------------

4FORM NO. L-20341-E-0208
THEORY OF OPERATION
front panel and contact closures. There are two sets of
contacts, one for overfeed or splice and one for break.
The Sensor is an ultrasonic sensor composed of a
sender and receiver. Each unit is provided with a mount-
ing bracket and 16 Ft. [5 m] of cable to interface with the
PC210. The ultrasonic signal allows the Sensor to see
through clear and opaque film, paper, foil, and laminates,
without false triggering caused by patterns or print on the
web.
INSTALLATION
in
mm
FIGURE 1
The PC210 Controller can be panel or shelf mounted in
any location suitable for electronic controls. Locations
for electronic controls must be free of shock, vibrations,
high temperatures, and moisture.
The sending and receiving elements of the Sensor are
provided with a 16 Ft. [5 m] cable to interface with the
PC210.
NOTE: The PC210 must be mounted within the cable
length of the Sensor. The cable length must not be
increased.
Nexen’s PC210 Paper Checker system is used on
web-fed machinery to detect web breaks or splices. On
sheet-fed presses or bag machines, the Paper Checker is
used to detect double sheet-feeding.
The Paper Checker system is composed of two parts:
the PC210 Paper Checker Control and UH200 Sensor.
The PC210 provides the excitation signal to the Sensor
and reads the return signal. The PC210 also indicates
machine feed conditions through LEDs located on the
(continued...)

5
FORM NO. L-20341-E-0208
FIGURE 2
NOTE: Sensor placement is dependent on the application, whether web or sheet-fed type machines.
SENSORS
The PC210 utilizes the UH200 sensor pair (finished
in black). The sensor model is selected with a switch
located on the PC210 Setup Control inside the Cover
Panel.
The UH200 sensor operates at a frequency of 40kHz.
If two sets of sensors of the same frequency are placed
close together there is a possibility of interference of
the signals. To prevent this interference or crosstalk, the
sensors must be placed at least 80 in. [2m] apart. In no
event may the sensors be placed closer than 8 in.[20 cm].
WEB FED MACHINES
The Sensor must be installed where the web pass line
is stable and does not change. If possible, position the
Sensor between two closely spaced rolls on a vertical
web run. The Sensor must be set at least 2 in. [50 mm]
in from the edge of the web.
NOTE: If several different web widths will run on the
machine the Sensor must be mounted where it will not
have to be moved when the web width is changed.
SHEET-FED MACHINES
Place the Sensor a minimum of 2 in. [50mm] in from the
edge of the sheet. The Sensor must be placed in an area
of the machine where the sheets are stable as they pass
through the Sensor beam.
INSTALLATION (continued...)
(continued...)
in
mm

6FORM NO. L-20341-E-0208
ALIGNMENT (SEE FIGURE 2)
1. The Transmitter must be the upper unit with
the Receiver mounted below when used with a
horizontal web run.
2. The angle of inclination to the web must be 45° + 5o.
3. The Transmitter to Receiver gap must be
2.36 + 0.20 in. [60 + 5 mm].
4. The lateral displacement must be within 0.20 In.
[5 mm].
5. The angular displacement must be within + 3o.
FIGURE 3
1. Provide AC Power 100, 110, 120, 200, 220,
240VAC, 50 or 60 Hz at Terminals 1 and 2.
Connect the ground wire to Terminal 3 (See Figure
3).
2. Connect the Sensor Transmitter 16 ft. [5 m] cable to
Terminals 4 and 5 (See Figure 3).
NOTE: Do not extend this cable length.
3. Terminals 7, 8, and 9 provide the Web Break Relay
contact signal. Wire as appropriate for Normally
Open (N.O.) or Normally Closed (N.C.) logic (See
Figure 3).
4. Terminals 10, 11, and 12 provide the double sheet-
feed (two sheets stacked on top of each other)
contact signal for sheet-fed machines or the splice
contact signal for web-fed machines. Make electrical
connections as appropriate for N.O. or N.C. logic
(See Figure 3).
5. A relay may be connected to Terminals 13 and 14
to prevent triggering of either the Web Break or
Double Sheet Feed/Web Splice condition. The relay
must be a normally open type which closes when
triggering is to be prevented.
This Lock Out Relay is normally used to prevent
false triggering when the web or sheets stop moving
as the machine is stopped. As the web or sheets
stop moving they often change position (sag, relax
tension, etc.) which causes false triggering.
6. A remote button can be used to reset the system
after a double feed or splice signal, when the
machine is in manual reset mode. If this option is
used, a customer supplied N.O. momentary contact
remote Output Reset switch must be connected to
Terminals 15 and 16 (See Figure 3).
7. Connect the Sensor Receiver 16 ft. [5 m] cable to
Terminals 17, 18, 19, and 20 (See Figure 3).
NOTE: Do not extend this cable length.
INSTALLATION (continued...)
ELECTRICAL CONNECTIONS

7
FORM NO. L-20341-E-0208
FRONT PANEL CONTROLS AND INDICATORS
The Power Switch has an imbedded indicator LED that
glows when power is on (See Figure 4).
The Cover Panel encloses setup controls (See Figure 4).
The Web Break Indicator is a red LED that glows under
the symbol of a dashed line drawing of a sheet of paper.
This LED glows when there is a web break, and the relay
at Terminals 7, 8, and 9 changes state (See Figure 4).
The Normal Run Indicator is a green LED that glows
under a solid line drawing of a single sheet of paper. This
LED glows when a single sheet is being fed in a sheet-
fed machine or a single thickness of web is running in a
web-fed machine. At this time, the relay at Terminals 7,
8, and 9and the relay at Terminals 10, 11, and 12 are in
their normal state (See Figure 4).
The Double Feed/Splice Indicator is a red LED that
glows under a solid line drawing of two sheets of paper.
This LED glows when a double sheet-feed is detected
on a sheet-fed machine or when a splice is detected in a
web-fed machine. At this time, the relay at Terminals 10,
11, and 12 changes state (See Figure 4).
The Test Switch with imbedded indicator LED allows the
Sensor to be tested for sensitivity to various materials,
thickness, web breaks, etc., without changing state of
the relays at Terminals 7, 8, and 9and at 10, 11, and
12. When the Test Switch is depressed and the red
LED glows, the PC210 is in test mode. The Web Break,
Normal Run, and Double Feed/Splice Indicator LEDs will
indicate normally for varying conditions, but the relays will
stay in their normal state. This allows for testing without
interference with machine logic controls, which read
these relay states. When the Test Switch is depressed
again, the red LED goes out and the PC210 is back to
its normal operation state, with the relays changing state
along with the indicator LEDs (See Figure 4).
The Reset Switch is used to reset the system after a
double feed contact signal in a sheet-fed machine or
a splice signal in a web-fed machine is given and the
Output Reset Selector Switch (located inside the Cover
Panel) is set to manual reset mode (See Figure 4).
FIGURE 4
Web Break
Indicator
RED LED
Normal Run
Indicator
GREEN LED
Double Feed/
Splice Indicator
RED LED
Reset
Switch
Test
Switch
Power
Switch
Cover
Panel

8FORM NO. L-20341-E-0208
Setup controls are located inside the cover on the
front panel of the PC210. These controls are used to
customize the control logic of the PC210 to the indi-
vidual machine (See Figure 5).
Web Splice Sensitivity Control indicated by "SENS"
regulates the sensitivity of the PC210 to splices.
Normally set to Position 3, it has no affect on double
feed signals when the machine is in a sheet-fed
mode or on web break sensitivity.
Gain Control adjust the level of the signal from the
Sensor
Mode Selector Switch indicated by "MODE" programs
the logic of PC210 to correspond to the machine-
feed conditions. The various positions are described
below.
(Mode 0) Not Used
(Modes 1 and 4) Web Splice Only
Used when the only indication wanted is a double
thickness splice on a web feed machine. The
difference between Modes 1 and 4 is the speed of
the machine.
(Modes 2 and 5) Web Splice and Web Break
Used when indication of double thickness (a splice)
and absence of web (web break) are needed on a
web feed machine. The difference between Modes
2 and 5 is the speed of the machine.
(Mode 3) Used to calibrate the Sensor signal for
web splice/double sheet feed when the PC210 is to
be used in Modes 1, 2, or 7.
(Mode 6) Used to calibrate the Sensor signal level
for web splice/double sheet-feed when the PC210 is
to be used in Modes 4 or 5.
(Mode 7) Used when the PC210 is used to detect
double sheet feeding in a sheet-fed machine.
Web Thickness Selector Switch sets the standard
product thickness to be run. It has two ranges:
(LEFT) 0.002- 0.008 in. [0.05-0.20 mm] and
(RIGHT) 0.008-0.031 in. [0.20-0.80 mm].
Output Reset Selector Switch determines method of
reset after a double sheet-feed or web splice has
been indicated. The auto reset relay (switch to the
left) automatically resets the PC210 to normal state
after a splice or double sheet enters the Sensor.
The time delay is adjustable from 0.2-6 seconds
(standard factory setting is 2 seconds). The manual
reset relay (switch to the right) must be reset to
normal state with the Reset Switch on the front panel
or by a momentary contact between Terminals 15
and 16.
Sensor Select Switch The Sensor Select Switch
determines which sensor is to be used. UH200 with
the switch in the left position, and UH215 with the
switch in the right position.
FIGURE 5
NOTE: For machine speed below 30 ft. per minute [10 meters per minute] use Modes 4, 5, and 6.
SETUP CONTROLS
MODE FUNCTION MACHINE SPEED
1Web Splice Only
30-1000 fpm [10-300
m/min]
2Web Splice/Web Break
3Calibration Mode for Sensor
Signal Level
4Web Splice Only
Over 1000 fpm [300 m/min]
5Web Splice and Web Break
6Calibration Mode for Sensor
Signal Level
7Double Sheet-Feed only 1650 fpm [500m/min] max
8-9-0 Not Used
TABLE 1

9
FORM NO. L-20341-E-0208
OPERATION
Detailed operation, setup, testing, and troubleshooting for each mode will be described in this section. Modes 3, 6, 9,
and 0 are not operating modes and will be discussed where appropriate within the text.
TABLE 2
OUTPUT CONFIGURATIONS FOR VARIOUS MODES
MODE
NO.
WEB BREAK WEB SPLICE/
DOUBLE SHEET COMMENTS
LAMP RELAY LAMP RELAY
1 NO NO YES YES Speeds of 30-1000 fpm [10-300 m/min]
2 YES YES YES YES
3 YES NO YES NO Sensor calibration Signal for Modes 1, 2, and 7
4 NO NO YES YES Speeds over 1000 fpm [300 m/min]
5 YES YES YES YES
6 YES NO YES NO Sensor calibration Signal for Modes 4 and 5
7 NO NO YES YES Sheet-Feed Machine
8 NO NO NO NO
Not Used
9 NO NO NO NO
0 NO NO NO NO
SHEET FEED MODE (MODE 7)
This mode is used for sheet-fed machinery where the
sheets do not overlap but are separated by a gap be-
tween sheets. During the time when a single thickness
of sheet is passing through the Sensor, the Normal Run
Indicator glows. The Web Break Indicator glows during
the gap between sheets, but the Web Break Relay at
Terminals 7, 8, and 9does not change state. A double
feed will cause the Double Feed/Splice Indicator to glow
and the Web Double Feed/Splice Relay at Terminals 10,
11, and 12 will change state.
If the Output Reset Selector Switch is in AUTO, the Web
Double Feed/Splice Relay will return to its normal state
after approximately 2 seconds. This time delay may set
for any time in the range of 0.2-6 seconds. If the Output
Reset Selector Switch is in MAN, the relay will not return
to its normal state until the Reset Switch (located on the
front panel) is pushed or a momentary contact is made
between Terminals 15 and 16.
TesT Run in sheeT Feed Mode
1. Set the Mode Selector Switch to 7.
2. Set the Web Thickness Selector Switch appropriate
to material being fed.
3. Set the Output Reset Selector Switch as required to
AUTO or MAN.
4. Set the Power Switch to ON.
5. Run the machine and feed sheets as normal.
6. Observe the front panel indicators and compare to
data for Mode 7in Table 1.
7. If errors occur, follow the correction suggestions in
Table 3.
8. The double sheet-feed function can be tested by
pressing the Test Switch. When the red LED in the
Test Switch glows, the double sheet-feed function
can be tested without changing the state of the
double sheet-feed relay at Terminals 10, 11, and 12.
Next, purposely feed two sheets through the Sensor.
The Double Feed/Splice Indicator red LED should
glow for approximately two seconds (if the Output
Reset Selector Switch is set to AUTO), until the
Reset Switch (located on the front panel) is pressed,
or until momentary contact is made from Terminal 15
to 16 in MAN.
9. Press Test Switch again after the test is completed.
The red LED in the Test Switch will go out and the
PC210 is back to normal operation. The relay will
change state when a double feed occurs.
10. Although the above test is required only when a new
material is being run, the test may be performed at
any time during normal operation.
(continued...)

10 FORM NO. L-20341-E-0208
Single sheet in Sensor gap
Set the Web Thickness Selector
Switch to the RIGHT side 0.008
In. - 0.031 in. [0.20-0.80 mm]
Abnormal
Two sheets in Sensor gap
Normal
None
Abnormal
1. Is the Sensor installed and
aligned properly?
2. Has dust accumulated
inside the Sensor tube?
(Clean the Sensor tube with an
air gun or remove the Sensor
tube for cleaning.)
3. Is the Sensor signal
calibrated correctly?
(See Sensor Signal Calibration.)
TABLE 3 SHEET FEED MODE OPERATIONS
WEB SPLICE ONLY (MODES 1 AND 4)
This mode is used for web feed machinery where the only
desired measurements are normal run and web splice
(See Table 1 for Output Configurations for Modes 1
and 4).
During normal run with a single thickness of web passing
through the Sensor, the Normal Run Indicator LED will
glow and the Web Break Relay at Terminals 7, 8, and 9
and the Web Splice Relay at Terminals 10, 11, and 12
will remain in their normal state.
CONDITION STATUS CORRECTIVE ACTION
Receiver
Emitter
45°
Normal
None
No Web in Sensor gap
Abnormal
Abnormal
1. Is the Sensor installed and
aligned correctly?
2. Has dust accumulated
inside the Sensor tube?
(Clean the Sensor tube with
anair gun or remove the Sen-
sor tube for cleaning.)
Single sheet in Sensor gap
Normal
Abnormal
Set the Web Thickness Selec-
tor Switch LEFT 0.002-0.008 in.
[0.05-0.20 mm].
None
OPERATION (continued...)
(continued...)

11
FORM NO. L-20341-E-0208
FIGURE 6
0.80 Inch
[20 mm]
or more
0.80 Inch
[20 mm]
or more
0.80 Inch
[20 mm]
or more
Double-sided
adhesive tape
Adhesive tape
Web
(A) OVERLAP SPLICE (B) SINGLE BUTT SPLICE (C) DOUBLE BUTT SPLICE
A web splice passing through the Sensor will cause the
Web Splice Indicator to glow and the Web Splice Relay
to change state. The Web Splice Relay and Indicator
will remain in this state until:
a. If output Reset Selector Switch is in the AUTO
position, the Web Splice Relay and Indicator Light
will return to their deenergized state after 2 seconds
(factory setting), or 0.2-6.0 seconds as set in
REMOTE RESET TIME SELECTION.
b. If the Output Reset Selector Switch is in the MANual
position, the Web Splice Relay and Indicator will
return to their deenergized state only upon pushing
the Reset Switch on the front panel or an Output
Reset momentary contact closure on Terminals 15
and 16.
Refer to Figure 9 for descriptions of the various splice
types and dimensions and observe the following rules
which apply to all splice detection.
The splice must be at least 0.8 In. [20 mm] long.
Web thickness can be from 0.0004-0.003 In. [1-00.8
mm].
Splice thickness must always be at least 0.002 In. [0.05
mm]. It may be necessary to splice as at A or C to
achieve this minimum value (See Figure 9).
If the splicing tape is less than half the thickness of the
web, it will be necessary to splice as at A or C (See
Figure 6).
TesT Run in Web splice Mode (Modes 1 oR 4)
1. Set the Mode Selector Switch to 1 or 4 as required.
2. Set the Web Thickness Selector Switch to
appropriate position, LEFT 0.002-0.008 in. [0.05-
0.20 mm] or RIGHT 0.008-0.03 In. [0.20-0.80 mm].
3. Set the Output Reset Selector Switch to AUTO or
MAN.
4. Set the Web Splice Sensitivity Control to 3.
5. Set the Power Switch to ON.
6. Check operation (See Table 4).
7. The Test Switch can be pressed prior to testing to
prevent the Web Splice Relay from changing state
during a test. The red LED imbedded in the Test
Switch glows while it is in test mode. Pressing the
Test Switch a second time extinguishes the LED and
allows the relay to operate normally.
8. The test described above can be performed at any
time but is normally required only when the web
thickness has changed.
(continued...)
OPERATION (continued...)

12 FORM NO. L-20341-E-0208
Single thickness of Web in Sensor
Normal
None
Abnormal If the Web thickness is less than 0.002
In. [0.05 mm] thick, the Web Break
Indicator will glow. Be sure the splice
is more than 0.002 In. [0.05 mm] thick
or the PC210 will not detect it.
Abnormal Set the Web Thickness Selector
Switch to 0.008-0.031 In. [0.20 - 0.80
mm].
A splice has passed
through the Sensor
Normal
None
Abnormal
Increase the Web Splice Sensitivity
Control setting from 3 -3.5. If the
unit still does not respond, increase
the setting to 4.0.
Abnormal
WEB SPLICE AND WEB BREAK MODE (MODES 2 AND 5)
This mode is used where both web break and web splice
detection are required.
NOTE: Web thickness must be set at least 0.002 In.
[0.05 mm] to use this mode.
Mode 2 and 5 are the same as Modes 1 and 4 for Web
Splice Sensing with the addition of the following WEB
OPERATION (continued...)
(continued...)
CONDITION STATUS CORRECTIVE ACTION
No Web in Sensor
Normal
Abnormal
None
1. Is the Sensor installed
and aligned correctly?
2. Has dust accumulated inside
the Sensor tube?
(Clean the Sensor tube with an
air gun or remove the Sensor
tube for cleaning.)
TABLE 4
WEB SPLICE MODE - MODES 1 OR 4
45 °
Lack of response is often caused by
the tape being half or less than half
the thickness of the web when using
type B single butt splice. This situation
can also be corrected by changing to
a type A or C splice by using a thicker
tape (See Figure 9).

13
FORM NO. L-20341-E-0208
TesT Run in Web bReak opeRaTion
1. Set the Mode Selector Switch to Mode 2 or 5.
2. Set the Web Thickness Selector Switch as
appropriate for web.
3. Set the Power Switch to ON.
4. Check operation according to Table 5.
5. The Test Switch can be depressed prior to testing
to prevent the Web Break Relay from changing state
when a test piece is placed in the sensor path with
an open section (which looks like a web break).
The PC210 is in test mode when the red LED in
the Test Switch glows. When the open section
passes through the sensor, the Normal Run Indicator
should go out and the Web Break Indicator should
glow. The PC210 will return to normal State when a
section of web reenters the Sensor.
6. Depress Test Switch again and the imbedded LED
will go out, indicating the PC210 is back to normal
operation and the Web Break Relay is operational.
CONDITION STATUS CORRECTIVE ACTION
45o
No Web in Sensor
Normal
Abnormal 1. Is the Sensor installed
and aligned correctly?
2. Has dust accumulated inside
the Sensor tube?
(Clean the Sensor tube with an
air gun or remove the Sensor
tube for cleaning.)
Normal
Abnormal
Set the Web Thickness Selector
Switch LEFT 0.002 - 0.008 In. [0.05
- 0.020 mm].
Single thickness of Web in Sensor
TABLE 5 WEB BREAK OPERATION
None
None
CALIBRATION
This potentiometer adjusts PC210 sensitivity to splices.
It has no effect in Sheet-Fed Mode 7.
The Web Splice Sensitivity Control is normally set to
Position 3. In rare cases where the thickness of the
splice is not twice the thickness of the web (as a butt
splice made with single sided taping and very thin tape),
it may be necessary to increase sensitivity (See Figure 6).
The sensitivity should be increased slowly from 3 - 3.5 or
even 4.
NOTE: An increase in sensitivity will also increase the
possibility of false triggering. Increase sensitivity slowly
and only as much as necessary.
Web Splice
Sensitivity Control
FIGURE 7
WEB SPLICE SENSITIVITY CONTROL
(See Figure 7)
OPERATION (continued...)
(continued...)

14 FORM NO. L-20341-E-0208
DETECTING SIGNAL LEVEL
This control is factory set for normal operation and in
most applications does not require field adjustment.
If the web or sheet run in a machine is consistently less than
0.002 In. [0.05 mm] and the Normal Run Indicator LED will
not come on (the Web Break Indicator LED stays on), it may
be necessary to adjust the detecting signal level.
If the web or sheet used in the machine is over 0.031In.
[0.8 mm] and the Normal Run Indicator LED will not
come on (Double Feed/Splice Indicator stays on), it may
also be necessary to adjust the detecting signal level.
1. Select Mode 3 or 6 as appropriate for the machine
speed.
2. Have a sample of the problem material on hand.
3. Set the Power Switch to ON.
AUTOMATIC RESET TIME SELECTION
The factory preset for Automatic Time Selection is ap-
proximately 2 seconds. This time can be changed to
anywhere from 0.2-6 seconds with VR1, located on the
printed circuit board. To select a time other than the fac-
tory preset time adjust VR1 as follows:
1. Turn power OFF using the Power Switch located on
the front panel of the PC210 (See Figure 9).
2. Remove the four screws and Top Cover from the
PC210 (See Figure 9).
3. Turn power ON using the Power Switch located on
the front panel of the PC210 (See Figure 9).
4. Locate VR1 on the main printed circuit board (See
Figure 10).
5. Adjust VR1 until the desired reset time is selected
(See Figure 11 for approximate time delay positions).
6. Test the reset time by inserting a splice or double
sheet into the Sensor until the Web Splice/Double
Sheet-Feed triggers with the Reset Selection in
AUTO; then, observe the time until the relay resets.
7. Turn power OFF using the Power Switch located on
the front panel of the PC210 (See Figure 9).
8. Replace the Top cover and the four screws (See
Figure 9).
FIGURE 9
Remove
Screws
Power
Switch
Sensor Signal
Gain
FIGURE 8
4. Insert the problem material into the Sensor.
5. Adjust the Sensor Signal Gain until the red LED for
Web Break or Double Feed/Splice goes out and the
green LED for Normal Run comes on (See Figure 8).
6. Set the Power Switch to OFF.
7. Select Operating Mode 1, 2, 4, 5, or 7 as
appropriate.
FIGURE 10
FIGURE 11
CALIBRATION (continued...)

15
FORM NO. L-20341-E-0208
SPECIFICATIONS
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16 FORM NO. L-20341-E-0208
WARRANTY
Warranties
Nexen warrants that the Products will be free from any defects in material or workmanship for a period of 12 months
from the date of shipment. NEXEN MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, AND ALL IMPLIED
WARRANTIES, INCLUDING WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
NESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. This warranty applies only if (a) the
Product has been installed, used and maintained in accordance with any applicable Nexen installation or maintenance
manual for the Product; (b) the alleged defect is not attributable to normal wear and tear; (c) the Product has not been
altered, misused or used for purposes other than those for which it was intended; and (d) Buyer has given written no-
tice of the alleged defect to Nexen, and delivered the allegedly defective Product to Nexen, within one year of the date
of shipment.
Exclusive Remedy
The exclusive remedy of the Buyer for any breach of the warranties set out above will be, at the sole discretion of Nex-
en, a repair or replacement with new, serviceably used or reconditioned Product, or issuance of credit in the amount of
the purchase price paid to Nexen by the Buyer for the Products.
Limitation of Nexen’s Liability
TO THE EXTENT PERMITTED BY LAW NEXEN SHALL HAVE NO LIABILITY TO BUYER OR ANY OTHER PER-
SON FOR INCIDENTAL DAMAGES, SPECIAL DAMAGES, CONSEQUENTIAL DAMAGES OR OTHER DAM-
AGES OF ANY KIND OR NATURE WHATSOEVER, WHETHER ARISING OUT OF BREACH OF WARRANTY OR
OTHER
BREACH OF CONTRACT, NEGLIGENCE OR OTHER TORT, OR OTHERWISE, EVEN IF NEXEN SHALL HAVE
BEEN ADVISED OF THE POSSIBILITY OR LIKELIHOOD OF SUCH POTENTIAL LOSS OR DAMAGE. For all of
the purposes hereof, the term “consequential damages” shall include lost profits, penalties, delay images, liquidated
damages or other damages and liabilities which Buyer shall be obligated to pay or which Buyer may incur based
upon, related to or arising out of its contracts with its customers or other third parties. In no event shall Nexen be li-
able for any amount of damages in excess of amounts paid by Buyer for Products or services as to which a breach of
contract has been determined to exist. The parties expressly agree that the price for the Products and the services was
determined in consideration of the limitation on damages set forth herein and such limitation has been specifically bar-
gained for and constitutes an agreed allocation of risk which shall survive the determination of any court of competent
jurisdiction that any remedy herein fails of its essential purpose.
Limitation of Damages
In no event shall Nexen be liable for any consequential, indirect, incidental, or special damages of any nature whatso-
ever, including without limitation, lost profits arising from the sale or use of the Products.
Warranty Claim Procedures
To make a claim under this warranty, the claimant must give written notice of the alleged defect to whom the Product
was purchased from and deliver the Product to same within one year of the date on which the alleged defect first
became apparent.
Nexen Group, Inc.
560 Oak Grove Parkway
Vadnais Heights, MN 55127
800.843.7445
Fax: [phone]
www.nexengroup.com
ISO 9001 Certified