Yamaha | NEXO GeoSight | User's Manual | Yamaha NEXO GeoSight User's Manual

France
Nexo S.A.
154 allée des Erables
ZAC des PARIS NORD II
B.P. 50107
F-95950 Roissy CDG
Cedex
Tel: +33 1 48 63 19 14
Fax: +33 1 48 63 24 61
E-mail: info@nexo.fr
GeoSight Sender Unit
FAR EAST
Nexo Far East Pte.
Ltd.
No. 10 Ubi Crescent
#02-35/36 Ubi Techpark
(Lobby C)
SINGAPORE 408564
Tel: +65 742 5660
Fax: +65 742 8050
E-mail: info@nexosg.com
USA
Nexo USA Inc.
2165 Francisco Boulevard
Suite E2
San Rafael CA 94901
Tel: +1 415 482 6600
Fax: +1 415 482 6110
E-mail: info@nexo.cc
www.nexo-sa.com
GeoSight Meter Unit
GeoSight Laser Module
User Manual
This space is intentionally left blank for user notes:
CONTENTS
IMPORTANT SAFETY INSTRUCTIONS
4
GEOSIGHT SYSTEM COMPONENTS
6
MOST IMPORTANT – safety precautions when using laser equipment.
Other important safety issues
PRINCIPAL
FEATURES OF THE
INSTALLATION
USING
THE
OF THE
GEOSIGHT
SENDER UNIT
FOR
SYSTEM
GEOT SYSTEMS
GEOSIGHT INCLINOMETER SYSTEM
The Operation Menu
Angle display and interpolation
Limits of angle measurement
Adjusting the angle of the PA system using relative values
Preservation of calibration data
OPERATING
7
8
9
9
10
11
11
11
12
THE LASER
Vertical (elevation) reference
Horizontal (azimuth) reference
Laser Visibility
12
12
12
POWER MANAGEMENT
13
SERVICING
13
Automatic power off
Battery condition and replacement
To replace the batteries
Battery Life
INSTALLING
AND
CALIBRATING
Installing the LMT laser module
CALIBRATING
Page 18 - User Notes - NEXO GeoSight User Manual
4
5
THE
LMT
13
13
13
13
THE
LMT LASER MODULE
LASER MODULE
14
14
15
LIMITED 1 YEAR WARRANTY
16
GEOSIGHT SPECIFICATIONS
17
DECLARATION
17
OF
CONFORMITY
NEXO GeoSight User Manual - Table of Contents - Page 3
IMPORTANT SAFETY INSTRUCTIONS
GEOSIGHT SPECIFICATIONS
Size
Length
Width
245mm
160mm
160mm
BST
Sender Unit
Mounting
Bracket
4no. M5 x 15
Cap screws
4no. M5 S/p
washer
2no. Foam
rubber strip
1no. CTL
adapter
164mm
101.6mm
76.2mm
76.2mm
120mm
Height
50.8mm
50.8mm
50.8mm
Weight
1.20Kg
0.55Kg
0.60Kg
0.05Kg
0.45Kg
1.145Kg
Inclinometer only
-
255mW
255mW
-
-
-
Backlight on full
-
495mW
495mW
-
-
-
Laser on
-
-
1800mW
-
-
-
Inclinometer only
-
100 hours
100 hours
-
-
-
Backlight on full
-
50 hours
50 hours
-
-
-
MOST IMPORTANT – safety precautions when using laser equipment.
• NEVER look directly into the laser, even when it is switched off, as someone may
activate it without warning.
Laser on
-
-
14 hours
-
-
-
• WARN others in the venue that you are going to use a laser and move them away
from the target area before activating the GeoSight.
• Ensure that others do not enter the target area of the laser whilst it is in use and
ensure that the meter unit is to hand at all times so that the beam can be switched off
immediately if necessary.
Maximum Output
Power
Beam Diameter (1/e2)
1) Read these instructions.
2) Keep these instructions for future reference and give a copy of them to any other
person who may need to use your GeoSight system.
3) Follow all instructions and heed all warnings.
4) Do not use this apparatus near water.
5) Clean only with dry cloth.
6) Do not use near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
7) Only use attachments/accessories specified by the manufacturer.
8) Unplug this apparatus during lightning storms or when unused for long periods of
time.
9) Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, if liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
Part No.
Item Description
Accessories (included)
MMT
Meter Unit
SST
Standard
Sender Unit
LST
Sender Unit
with Laser
Module
6 x MN1500
battery
LMT
Laser Module
Option
4no. M3 x 10
Cap screws
30CT
30m
Cable
30m
57mm
Power Consumption
Battery Life (est)
CLASS 2 Laser. This symbol indicates potential hazard
• Use the laser for the minimum amount of time and switch off as soon as the
measurement is complete. Disconnect the cable from the Meter Unit as soon as
possible and ALWAYS ensure that the Meter Unit is
disconnected when the public have access to the
venue.
• NEVER use the laser in any other application than
it is designed. DO NOT operate the laser when
hand holding the Sender Unit. There are serious
penalties for using a laser in any manner that may
cause accident or injury.
!! Particularly it is VERY dangerous to point the
laser at vehicles or aircraft !!
Page 4 - Safety Instructions - NEXO GeoSight User Manual
Laser Class
Class 2 /
IEC825
532nm
Wavelength
<5 mW
<1 mm
Beam divergence
<1.4mrad
Mean time to failure
(based upon laser
diode manufacturer’s
figures)
>5000 hours
NEXO reserves the right to change specifications without notice.
DECLARATION
OF
CONFORMITY
This equipment has been tested and found to comply with the safety objectives and
essential requirements of the 73/23/EEC and 89/336/EEC directives:
EN 60065 (1998) Audio, video and similar electronic apparatus - Safety requirements,
EN55103-1 (1996) Electromagnetic compatibility - Product family standard for audio,
video, audio-visual and entertainment lighting control apparatus for professional use
– Part 1: Emission,
EN55103-2 (1996) Electromagnetic compatibility - Product family standard for audio,
video, audio-visual and entertainment lighting control apparatus for professional use
– Part 2: Immunity.
NEXO GeoSight User Manual - GeoSight Specifications - Page 17
LIMITED 1 YEAR WARRANTY
Nexo hereby warrants that GeoSight products will be free from defects in materials and
workmanship for a period of 1 year from date of purchase. This warranty EXCLUDES
the following components for which no warranty is offered:
The CT30 cable
The LMT laser diode
The MN1500 batteries supplied.
The above items are either subject to unwarrantable wear and tear or have a life
expectancy which is dependent upon use and treatment (i.e. the Laser Diode has
an expected life of >5000 Hours but could be easily damaged or reduced in life by
rough handling). In the case of a Laser Module misfunction the LMT module should be
removed from the Sender Unit, carefully packed and returned to NEXO for inspection.
Replacement of the Laser Module at any time is at the sole discretion of NEXO.
If you believe that the product is defective within the warranty period please return
it complete to your nearest NEXO dealer who will arrange for the replacement or
repair. Please keep the packaging supplied with the product for this purpose. NEXO
reserves the right to replace or repair products with successful warranty claims at their
discretion.
The warranty does not apply to normal wear and tear, abuse, water penetration or
use in extreme environments. It does not apply in the case of unauthorised repair. All
implied WARRANTIES OF MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE are hereby disclaimed and NEXO hereby disclaims liability for incidental,
special or consequential damages resulting from the use or unavailability of this
product.
If there is no NEXO dealer in your territory please pack the defective product(s)
carefully and send them with a written explanation of the fault to:
NEXO France S.A.
154 allée des Erables
ZAC des PARIS NORD
II B.P. Roissy CDG
Cedex
Please include all of your contact information and a note of the date of purchase.
NEXO will contact you upon receipt.
Other important safety issues
The GeoSight system is primarily a rigging accessory and as such requires careful handling.
Use of the meter does not absolve the user from any other rigging practice or responsibility.
The user must assess risk and method before using GeoSight in any given application. No
liability is accepted on the part of NEXO or it’s agents or representatives for damage, loss or
injury caused as a consequence of using GeoSight or related accessories.
• The Sender Unit must be safely attached to the loudspeaker array structure when used
above 2m from ground level. DO NOT fix the Sender Unit with tape, Velcro or any other
temporary fixing method.
• Always use the GeoT mounting bracket supplied or, if used in other applications, ensure
that a suitable mounting fixture is provided.
• The use of GeoSight does not preclude the obligation to follow normal rigging safety
procedures.
• Be aware that any object left on the top of a PA system during installation may fall when the
system is operated. Always check that all accessories are secured before final hoisting.
• When making adjustments to the PA system with motor hoists always look to the system
– not the Meter Unit! Check the measurement only when you are satisfied that the system
has finished moving safely.
• When using the Meter Unit be aware of other rigging operations around you.
• Always follow the appropriate safety procedures for the site (including wearing the
appropriate protective clothing and headgear).
• Always store the meter unit and the cable properly after use to prevent trip hazards or
damage. GeoSight components are not waterproof. Take care when using them outdoors.
• As with any component of flown loudspeaker arrays, regular safety inspections are
obligatory
• Take care when disposing of batteries. Never throw used batteries into fire or source of
heat. Place them in a suitable waste container.
• GeoSight operates at low voltages and cannot itself give rise to electric shock HOWEVER:
The Sender Unit and the Cable could come into contact with other electrical apparatus
which, if faulty, could result in electrical potential being applied to the GeoSight components.
For this reason always ensure that associated equipment is thoroughly tested.
When using GeoSight outdoors be aware that lightning could strike the Sender Unit. Always
unplug the system in case of electrical storms.
Page 16 - Warranty - NEXO GeoSight User Manual
NEXO GeoSight User Manual - Safety Instructions - Page 5
GEOSIGHT SYSTEM COMPONENTS
CALIBRATING
THE
LMT
LASER MODULE
Careful calibration of the laser is required as small errors multiply to produce large
errors over distance. Use the following procedure to calibrate the laser.
The Sender Unit must be placed in a position where it is registered vertically and
horizontally – e.g. on a solid table with a block clamped to it as a side fence. The laser
output beam should be aimed at a vertical surface at least 20m distant from the Sender
Unit.
GeoSight SST/LST - The Sender Unit that mounts to
the system bumper or rigging frame. Available as either
SST (without laser module) or LST (with laser module as
shown in the above photograph) the Sender Unit contains
a precision solid-state inclinometer, calibration storage and
a rugged housing. Mounting hardware for NEXO GeoT
bumpers is included.
NOTE: Observe the laser safety procedures when activating the laser
• Switch on the laser and note where the laser dot falls on the vertical target surface.
Make a mark on the surface at the centre of the laser dot.
• Rotate the Sender Unit 180° around the axis of the laser output beam. Ensure that
the Sender Unit is firmly registered against the fence and observe the new position of
the laser dot. Make a second mark at the centre of the dot and make sure that the two
marks are identified for vertical orientation.
GeoSight MMT - The Meter Unit containing a backlit
display with a two-button menu driven interface. The Meter
Unit operates on 6 x AA batteries.
• Turn the Sender Unit through 90° and repeat the process,
identifying the two laser dots marks for horizontal orientation.
After following this procedure the target surface should have
four marks as shown in the diagram shown right.
• Connect the marks V1 and V2 with a line and similarly
the pair of marks H1 and H2. The point where the two lines
coincide is the calibrated target point for the laser dot. Make a
clear mark on the target surface at this point.
GeoSight LMT - optional high brightness laser
module. This item can be purchased separately and fitted
by the user but requires calibration (see appendix A of this
manual).
• With the Sender Unit firmly registered against the fence adjust the four M3 machine
screws around the circumference of the laser bezel until the laser dot falls on the
desired calibration mark. The adjustment is quite sensitive and more so the further the
target surface is from the Sender Unit. Make only small adjustments to each of the
screws and make sure that the screws are not tightened completely.
• When the calibration is completed place a drop of thread
lock on each of the screw heads and label the sender unit
as having been calibrated with the date and name of the
person doing the work.
GeoSight 30CT - 30m long 6-pin XLR-XLR cable that
connects the Meter Unit to the Sender Unit.
Page 6 - System Components - NEXO GeoSight User Manual
Calibration of the Laser will be required annually to
ensure the precision of the system. It is good practice
to incorporate this task with a general inspection of the
system components for electrical and mechanical safety.
NEXOGeoSightUserManual-CalibratingtheLMTLaserModule-Page15
INSTALLING
AND
CALIBRATING
THE
LMT LASER MODULE
PRINCIPAL
FEATURES OF THE
GEOSIGHT INCLINOMETER
SYSTEM
The Sender Unit is supplied in two versions:
GeoSight SST – standard version without the laser module
GeoSight LST – with the optional laser module fitted
The LST version has been factory calibrated so that the laser output beam is parallel
to the top face and the edge faces of the Sender housing. If the GeoSight LMT Laser
Module is purchased separately it requires installation and calibration before use.
Installation is simple providing that the following guidance is observed.
Installing the LMT laser module
• Remove the three countersunk machine screws from the
side faces of the Sender Unit.
• Withdraw the inner chassis from the outer cover and
place it on a table.
• Remove the plastic blanking plate that occupies the
mounting hole for the laser. The blanking plate is located
directly opposite the XLR connector.
• Carefully remove the LMT module from the packaging
NOTE: The laser module has an exposed PCB and must be treated with extreme care.
• Offer the LMT module to the inner face of the chassis ensuring that the laser bezel
passes through the mounting hole. The clearance is tight to help prevent water ingress
and there may be a little of the coating material causing the bezel to bind in the hole. If
this is the case clean the inner edge of the hole gently with fine wet and dry paper.
• When the bezel fits correctly pass the four M3 machine screws (supplied) through
the fixing holes from the outside of the chassis. Offer the bezel to the screws and start
each thread in the bezel by hand.
• Spin each machine screw so that it just pinches the rubber pads on the front surface
of the bezel between the bezel and the chassis. Using a suitable Allen key add a
quarter turn to each screw.
• Attach the two-pin plug on the end of the flying leads of the LMT module to the socket
in the Sender Unit chassis. Early models of the Sender have the socket soldered to the
XLR connector. Later models have the socket mounted on the PCB.
• Replace the outer cover of the Sender Unit and refit the three fixing screws. Do not
over tighten.
Page14-InstallingtheLMTLaserModule-NEXOGeoSightUserManual
• Precision angle measurement to +/- 0.05 deg. resolved to +/- 0.1 deg. displayed.
• Intelligent interpolative measurement - the final resting angle of the system is
displayed within three periods of oscillation whilst the system is moving after motor
hoist adjustment. This feature reduces installation time, as the user does not need to
wait until the PA system comes to rest after each angle adjustment.
• Many Sender Units may be used with one Meter Unit. Calibration information is
stored in the Sender Unit using non-volatile memory and remains accurate after the
Meter Unit is disconnected. The Sender Unit may be re-calibrated on the fly to any
angle within its range from menu controls on the meter unit, allowing adjustment of PA
system elevation to be made in relative values if required.
NOTE: Observe the laser safety procedures when activating the laser
• The Sender Unit has an on-board green laser
(optional) that is calibrated parallel to the Sender
Unit mounting faces and switched from menu
commands on the Meter Unit. Green lasers are
20 times more visible than red lasers and provide
highly visible indication of the aiming of the PA
system.
• Serial data connection between the Meter Unit
and the Sender Unit. This enables any cable length
to be used (up to 100m), as cable resistance has
no influence upon the calibration of the Sender
Unit.
• Rugged packaging for reliable performance and long service life. Mounting hardware
for use with NEXO GeoT Tangent Array systems is included however the GeoSight
may be used in many other applications with suitable accessories (not supplied).
• Integration with the GeoT rigging system providing a reliable and tour friendly
precision tool.
• NEXO innovation and reliability.
NEXO GeoSight User Manual - GeoSight Features - Page 7
INSTALLATION
OF THE
SENDER UNIT
FOR
GEOT
SYSTEMS
A mounting bracket and cable adaptor is supplied for use with GeoT bumper systems.
The Sender is mounted on the underside of the bumper as follows:
• Invert the GeoT bumper and support it so that it cannot
topple and cause injury.
Observe that there are six pre-drilled holes in the central
spine plate. These holes must be prepared by threading
with an M5 tap
• Identify the front of the GeoT bumper and attach two
pieces of rubber strip to the surface of the central spine
plate as shown in the photograph below.
POWER MANAGEMENT
Automatic power off
The GeoSight Inclinometer system manages its power consumption and auto powers
off 3 minutes after the last button push.
Battery condition and replacement
The Meter Unit requires 6 x AA batteries for operation (included in the shipping
package). Only high performance alkaline type batteries such as Duracell MN1500 LR6
should be used.
Low battery indication: When the batteries are low the display shows ****** and the
functions of the GeoSight are disabled.
To replace the batteries
• Remove the 2 x M4 countersunk machine
screws in each of the side faces of the Meter
Unit.
• Place the GeoSight Sender Unit with the top surface of
the Sender Unit against the rubber strips and the XLR
connector towards the rear of the bumper. Observe that
the laser output beam passes through the holes provided
in the front bumper cross-member.
• Withdraw the inner assembly of the Meter Unit
from the outer cover and place on a flat surface.
• Place the mounting bracket over the Sender Unit
ensuring that the mounting holes align as shown in the
photograph. Note that the bracket is not symmetrical and
has a front and rear orientation.
• Withdraw the battery pack from the battery
bay.
• Fix the bracket to the bumper spine plate with the 4 x M5
machine screws and shake-proof washers supplied.
• A short cable with 1 x Male chassis XLR and 1 x Female
line XLR is supplied. Pass the female line plug through the
XLR mounting hole in the cross-member at the rear of the
GeoT bumper and again through the second hole in the
inner face of the cross-member. The chassis XLR should
be fitted to the bumper using the 2 x M3 nuts and bolts
supplied. Access to the nuts can be made through the cut
outs in the cross-member. The rubber grommet can then
be fitted in the hole in the inner face of the cross-member
and the line plug inserted into the socket in the rear of the
Sender Unit.
In operation the Inclinometer Cable may then be easily
plugged into to the rear of the bumper without requiring
access to the Sender Unit itself.
Page 8 - Sender Installation - NEXO GeoSight User Manual
• Identify the battery bay and disconnect the
PP3 type connector.
• Replace the batteries being careful to observe
polarity.
• Replace the battery pack and re-connect
• Replace the outer cover and re-fit the screws. Do not over tighten.
Battery Life
The LMT laser module is by far the most demanding feature of the system in terms
of power consumption, followed by the backlight function and finally the inclinometer
electronics. Users should expect approximately 2.5 hours continuous use of the laser
for the LST version. The standard SST version without the laser has battery life in the
order of 100 hours continuous use (estimated).
SERVICING
The SST/LST Sender Units, the LMT optional laser module and the MMT Meter Unit
contain no user serviceable parts. Please refer to your local NEXO distributor for
service.
NEXO GeoSight User Manual - Power management - Page 13
OPERATING
THE LASER
The laser is operated by scrolling to the LASER menu using the RED button and
switching ON and OFF using the GREEN button. Note that the unit will automatically
power off three minutes after the last button push.
USING
THE
GEOSIGHT INCLINOMETER SYSTEM
The Operation Menu
The GeoSight is operated from the meter unit by means of two buttons, one RED
and the other GREEN. In most screens the RED button calls the menu item and the
GREEN button executes the command. The diagram below illustrates the menus and
button actions.
NOTE: Observe the laser safety procedures when activating the laser
Vertical (elevation) reference
The laser is used to confirm that the upper margin of
the PA system dispersion is reaching the design target.
The NEXO GeoSoft array design software illustrates the
position of the laser target relative to the overall system
coverage (GeoSoft version 2.0 and later).
Horizontal (azimuth) reference
With correct calibration (see page 13) the laser provides
an accurate azimuth reference as well as vertical. Future
versions of GeoSoft will refer to the laser in reference to
horizontal coverage.
Laser Visibility
The brightness of the laser is approximately 20 times that of a red laser of similar
power however the actual visibility will depend on the ambient light and the colour of
the surface which the laser is illuminating. The beam is quite visible when there are air
particles present and the spot is visible in daylight under suitable conditions.
Take extreme care in bright ambient light conditions not to look into the laser beam
whilst searching for the spot. Even though the beam may be difficult to locate the onaxis power of the beam is dangerous to eyesight in all ambient conditions.
Notes:
• Connect the Inclinometer Cable to the Sender Unit (via the GeoT bumper socket if
present) and to the Meter Unit.
NOTE: The Inclinometer Cable is durable but requires the same handling precautions
and strain relief that users would provide for any other flown cable.
continued overleaf
Page 12 - Operating the Laser - NEXO GeoSight User Manual
NEXOGeoSightUserManual-UsingtheGeoSightInclinometer-Page9
NOTE: Observe the laser safety procedures when activating the laser
• Switch on the unit by pressing the RED and the GREEN button simultaneously. The
unit checks the backlight and displays ‘NEXO’ for approximately 5 seconds during the
boot sequence. After booting the unit displays the current angle readout in degrees.
NOTE: The initial angle reading is relative to the last calibration of the unit. In order to
be sure that the inclinometer measurement is correctly calibrated to the bumper the
following procedure must be followed:
Sender Unit angle calibration procedure
• Place the bumper on a solid, stable surface.
• Take a good quality spirit level or calibrated digital level and place it on the top edge
of the bumper.
• Pack the bumper at the front or rear as required so that the bumper is perfectly
horizontal.
• Switch on the GeoSight and scroll to the ‘ZERO’ menu item using the RED button.
Press the GREEN button and note that the display reads ‘SURE?’ Immediately press
and HOLD the RED button and then press the GREEN button. The display reads ‘ZSET’ for approximately 5 seconds whilst the calibration register is reset and the Sender
Unit re-boots.
The Sender Unit is now calibrated to read +0.00° when the bumper is perfectly
horizontal.
NOTE: It is normal for the Meter Unit display to occasionally display +/- 0.01° when
static. This is because the GeoSight continually calculates the static angle from
dynamic information and is in fact fractionally more accurate when the PA system is
swinging than it is when absolutely still.
Limits of angle measurement
The GeoSight has a usable range of +/- 30° with full accuracy. The sensor is capable of
measuring angles up to 44° but with reduced accuracy of +/- 1° at 40°. The additional
range is left available to the user but should be used with caution. If extreme angles are
needed outside the +/- 30° range it is preferable to mount the Sender Unit at a known
angle that is closer to the target angle however this would require customised mounting
hardware.
Adjusting the angle of the PA system using relative values
Once in position, the Sender Unit can if required be re-calibrated in place to relative
zero by following the calibration procedure given above. This allows the PA system to
be re-adjusted relative to its original elevation by reading the value of the adjustment
rather than the absolute value.
In this case the user must be careful to note when the Sender Unit has been recalibrated because its horizontal position will no longer be 0.00°. For this reason it is
wise to calibrate each Sender installation before use unless you are confident that it
has not been re-calibrated to some other angle.
This function may be useful when re-adjusting a system that has been installed to
a known position but where the calibration state of the Sender Unit is unknown or
appears to be incorrect.
Preservation of calibration data
Once the array installation is complete the Meter Unit should be disconnected from the
Inclinometer Cable and can be used with other Sender Units. If subsequent adjustment
of the array is required the Meter Unit may be re-connected to the Sender Unit without
loss of calibration.
Notes:
Angle display and interpolation
The GeoSight system is now ready for use and will display the computed static resting
angle of the Sender Unit when the Meter Unit is active. The accuracy of the reading
is a function of the number of periods of pendulum ‘swing’ that the PA system has
undergone. As a guideline, the angle display has the following accuracy:
1 periods (cycles) of swing: +/- 1.0°
2 periods (cycles) of swing: +/- 0.5°
3 periods (cycles) of swing: +/- 0.1°
It will be obvious that the measurement cannot be relied upon when the PA system
hoists are actually being operated. Once the hoist(s) have stopped the Meter Unit
display quickly resolves the measurement. A satisfactory value for the resting angle is
normally displayed within a few seconds.
Page10-UsingtheGeoSightInclinometer-NEXOGeoSightUserManual
NEXOGeoSightUserManual-UsingtheGeoSightInclinometer-Page11
NOTE: Observe the laser safety procedures when activating the laser
• Switch on the unit by pressing the RED and the GREEN button simultaneously. The
unit checks the backlight and displays ‘NEXO’ for approximately 5 seconds during the
boot sequence. After booting the unit displays the current angle readout in degrees.
NOTE: The initial angle reading is relative to the last calibration of the unit. In order to
be sure that the inclinometer measurement is correctly calibrated to the bumper the
following procedure must be followed:
Sender Unit angle calibration procedure
• Place the bumper on a solid, stable surface.
• Take a good quality spirit level or calibrated digital level and place it on the top edge
of the bumper.
• Pack the bumper at the front or rear as required so that the bumper is perfectly
horizontal.
• Switch on the GeoSight and scroll to the ‘ZERO’ menu item using the RED button.
Press the GREEN button and note that the display reads ‘SURE?’ Immediately press
and HOLD the RED button and then press the GREEN button. The display reads ‘ZSET’ for approximately 5 seconds whilst the calibration register is reset and the Sender
Unit re-boots.
The Sender Unit is now calibrated to read +0.00° when the bumper is perfectly
horizontal.
NOTE: It is normal for the Meter Unit display to occasionally display +/- 0.01° when
static. This is because the GeoSight continually calculates the static angle from
dynamic information and is in fact fractionally more accurate when the PA system is
swinging than it is when absolutely still.
Limits of angle measurement
The GeoSight has a usable range of +/- 30° with full accuracy. The sensor is capable of
measuring angles up to 44° but with reduced accuracy of +/- 1° at 40°. The additional
range is left available to the user but should be used with caution. If extreme angles are
needed outside the +/- 30° range it is preferable to mount the Sender Unit at a known
angle that is closer to the target angle however this would require customised mounting
hardware.
Adjusting the angle of the PA system using relative values
Once in position, the Sender Unit can if required be re-calibrated in place to relative
zero by following the calibration procedure given above. This allows the PA system to
be re-adjusted relative to its original elevation by reading the value of the adjustment
rather than the absolute value.
In this case the user must be careful to note when the Sender Unit has been recalibrated because its horizontal position will no longer be 0.00°. For this reason it is
wise to calibrate each Sender installation before use unless you are confident that it
has not been re-calibrated to some other angle.
This function may be useful when re-adjusting a system that has been installed to
a known position but where the calibration state of the Sender Unit is unknown or
appears to be incorrect.
Preservation of calibration data
Once the array installation is complete the Meter Unit should be disconnected from the
Inclinometer Cable and can be used with other Sender Units. If subsequent adjustment
of the array is required the Meter Unit may be re-connected to the Sender Unit without
loss of calibration.
Notes:
Angle display and interpolation
The GeoSight system is now ready for use and will display the computed static resting
angle of the Sender Unit when the Meter Unit is active. The accuracy of the reading
is a function of the number of periods of pendulum ‘swing’ that the PA system has
undergone. As a guideline, the angle display has the following accuracy:
1 periods (cycles) of swing: +/- 1.0°
2 periods (cycles) of swing: +/- 0.5°
3 periods (cycles) of swing: +/- 0.1°
It will be obvious that the measurement cannot be relied upon when the PA system
hoists are actually being operated. Once the hoist(s) have stopped the Meter Unit
display quickly resolves the measurement. A satisfactory value for the resting angle is
normally displayed within a few seconds.
Page10-UsingtheGeoSightInclinometer-NEXOGeoSightUserManual
NEXOGeoSightUserManual-UsingtheGeoSightInclinometer-Page11
OPERATING
THE LASER
The laser is operated by scrolling to the LASER menu using the RED button and
switching ON and OFF using the GREEN button. Note that the unit will automatically
power off three minutes after the last button push.
USING
THE
GEOSIGHT INCLINOMETER SYSTEM
The Operation Menu
The GeoSight is operated from the meter unit by means of two buttons, one RED
and the other GREEN. In most screens the RED button calls the menu item and the
GREEN button executes the command. The diagram below illustrates the menus and
button actions.
NOTE: Observe the laser safety procedures when activating the laser
Vertical (elevation) reference
The laser is used to confirm that the upper margin of
the PA system dispersion is reaching the design target.
The NEXO GeoSoft array design software illustrates the
position of the laser target relative to the overall system
coverage (GeoSoft version 2.0 and later).
Horizontal (azimuth) reference
With correct calibration (see page 13) the laser provides
an accurate azimuth reference as well as vertical. Future
versions of GeoSoft will refer to the laser in reference to
horizontal coverage.
Laser Visibility
The brightness of the laser is approximately 20 times that of a red laser of similar
power however the actual visibility will depend on the ambient light and the colour of
the surface which the laser is illuminating. The beam is quite visible when there are air
particles present and the spot is visible in daylight under suitable conditions.
Take extreme care in bright ambient light conditions not to look into the laser beam
whilst searching for the spot. Even though the beam may be difficult to locate the onaxis power of the beam is dangerous to eyesight in all ambient conditions.
Notes:
• Connect the Inclinometer Cable to the Sender Unit (via the GeoT bumper socket if
present) and to the Meter Unit.
NOTE: The Inclinometer Cable is durable but requires the same handling precautions
and strain relief that users would provide for any other flown cable.
continued overleaf
Page 12 - Operating the Laser - NEXO GeoSight User Manual
NEXOGeoSightUserManual-UsingtheGeoSightInclinometer-Page9
INSTALLATION
OF THE
SENDER UNIT
FOR
GEOT
SYSTEMS
A mounting bracket and cable adaptor is supplied for use with GeoT bumper systems.
The Sender is mounted on the underside of the bumper as follows:
• Invert the GeoT bumper and support it so that it cannot
topple and cause injury.
Observe that there are six pre-drilled holes in the central
spine plate. These holes must be prepared by threading
with an M5 tap
• Identify the front of the GeoT bumper and attach two
pieces of rubber strip to the surface of the central spine
plate as shown in the photograph below.
POWER MANAGEMENT
Automatic power off
The GeoSight Inclinometer system manages its power consumption and auto powers
off 3 minutes after the last button push.
Battery condition and replacement
The Meter Unit requires 6 x AA batteries for operation (included in the shipping
package). Only high performance alkaline type batteries such as Duracell MN1500 LR6
should be used.
Low battery indication: When the batteries are low the display shows ****** and the
functions of the GeoSight are disabled.
To replace the batteries
• Remove the 2 x M4 countersunk machine
screws in each of the side faces of the Meter
Unit.
• Place the GeoSight Sender Unit with the top surface of
the Sender Unit against the rubber strips and the XLR
connector towards the rear of the bumper. Observe that
the laser output beam passes through the holes provided
in the front bumper cross-member.
• Withdraw the inner assembly of the Meter Unit
from the outer cover and place on a flat surface.
• Place the mounting bracket over the Sender Unit
ensuring that the mounting holes align as shown in the
photograph. Note that the bracket is not symmetrical and
has a front and rear orientation.
• Withdraw the battery pack from the battery
bay.
• Fix the bracket to the bumper spine plate with the 4 x M5
machine screws and shake-proof washers supplied.
• A short cable with 1 x Male chassis XLR and 1 x Female
line XLR is supplied. Pass the female line plug through the
XLR mounting hole in the cross-member at the rear of the
GeoT bumper and again through the second hole in the
inner face of the cross-member. The chassis XLR should
be fitted to the bumper using the 2 x M3 nuts and bolts
supplied. Access to the nuts can be made through the cut
outs in the cross-member. The rubber grommet can then
be fitted in the hole in the inner face of the cross-member
and the line plug inserted into the socket in the rear of the
Sender Unit.
In operation the Inclinometer Cable may then be easily
plugged into to the rear of the bumper without requiring
access to the Sender Unit itself.
Page 8 - Sender Installation - NEXO GeoSight User Manual
• Identify the battery bay and disconnect the
PP3 type connector.
• Replace the batteries being careful to observe
polarity.
• Replace the battery pack and re-connect
• Replace the outer cover and re-fit the screws. Do not over tighten.
Battery Life
The LMT laser module is by far the most demanding feature of the system in terms
of power consumption, followed by the backlight function and finally the inclinometer
electronics. Users should expect approximately 2.5 hours continuous use of the laser
for the LST version. The standard SST version without the laser has battery life in the
order of 100 hours continuous use (estimated).
SERVICING
The SST/LST Sender Units, the LMT optional laser module and the MMT Meter Unit
contain no user serviceable parts. Please refer to your local NEXO distributor for
service.
NEXO GeoSight User Manual - Power management - Page 13
INSTALLING
AND
CALIBRATING
THE
LMT LASER MODULE
PRINCIPAL
FEATURES OF THE
GEOSIGHT INCLINOMETER
SYSTEM
The Sender Unit is supplied in two versions:
GeoSight SST – standard version without the laser module
GeoSight LST – with the optional laser module fitted
The LST version has been factory calibrated so that the laser output beam is parallel
to the top face and the edge faces of the Sender housing. If the GeoSight LMT Laser
Module is purchased separately it requires installation and calibration before use.
Installation is simple providing that the following guidance is observed.
Installing the LMT laser module
• Remove the three countersunk machine screws from the
side faces of the Sender Unit.
• Withdraw the inner chassis from the outer cover and
place it on a table.
• Remove the plastic blanking plate that occupies the
mounting hole for the laser. The blanking plate is located
directly opposite the XLR connector.
• Carefully remove the LMT module from the packaging
NOTE: The laser module has an exposed PCB and must be treated with extreme care.
• Offer the LMT module to the inner face of the chassis ensuring that the laser bezel
passes through the mounting hole. The clearance is tight to help prevent water ingress
and there may be a little of the coating material causing the bezel to bind in the hole. If
this is the case clean the inner edge of the hole gently with fine wet and dry paper.
• When the bezel fits correctly pass the four M3 machine screws (supplied) through
the fixing holes from the outside of the chassis. Offer the bezel to the screws and start
each thread in the bezel by hand.
• Spin each machine screw so that it just pinches the rubber pads on the front surface
of the bezel between the bezel and the chassis. Using a suitable Allen key add a
quarter turn to each screw.
• Attach the two-pin plug on the end of the flying leads of the LMT module to the socket
in the Sender Unit chassis. Early models of the Sender have the socket soldered to the
XLR connector. Later models have the socket mounted on the PCB.
• Replace the outer cover of the Sender Unit and refit the three fixing screws. Do not
over tighten.
Page14-InstallingtheLMTLaserModule-NEXOGeoSightUserManual
• Precision angle measurement to +/- 0.05 deg. resolved to +/- 0.1 deg. displayed.
• Intelligent interpolative measurement - the final resting angle of the system is
displayed within three periods of oscillation whilst the system is moving after motor
hoist adjustment. This feature reduces installation time, as the user does not need to
wait until the PA system comes to rest after each angle adjustment.
• Many Sender Units may be used with one Meter Unit. Calibration information is
stored in the Sender Unit using non-volatile memory and remains accurate after the
Meter Unit is disconnected. The Sender Unit may be re-calibrated on the fly to any
angle within its range from menu controls on the meter unit, allowing adjustment of PA
system elevation to be made in relative values if required.
NOTE: Observe the laser safety procedures when activating the laser
• The Sender Unit has an on-board green laser
(optional) that is calibrated parallel to the Sender
Unit mounting faces and switched from menu
commands on the Meter Unit. Green lasers are
20 times more visible than red lasers and provide
highly visible indication of the aiming of the PA
system.
• Serial data connection between the Meter Unit
and the Sender Unit. This enables any cable length
to be used (up to 100m), as cable resistance has
no influence upon the calibration of the Sender
Unit.
• Rugged packaging for reliable performance and long service life. Mounting hardware
for use with NEXO GeoT Tangent Array systems is included however the GeoSight
may be used in many other applications with suitable accessories (not supplied).
• Integration with the GeoT rigging system providing a reliable and tour friendly
precision tool.
• NEXO innovation and reliability.
NEXO GeoSight User Manual - GeoSight Features - Page 7
GEOSIGHT SYSTEM COMPONENTS
CALIBRATING
THE
LMT
LASER MODULE
Careful calibration of the laser is required as small errors multiply to produce large
errors over distance. Use the following procedure to calibrate the laser.
The Sender Unit must be placed in a position where it is registered vertically and
horizontally – e.g. on a solid table with a block clamped to it as a side fence. The laser
output beam should be aimed at a vertical surface at least 20m distant from the Sender
Unit.
GeoSight SST/LST - The Sender Unit that mounts to
the system bumper or rigging frame. Available as either
SST (without laser module) or LST (with laser module as
shown in the above photograph) the Sender Unit contains
a precision solid-state inclinometer, calibration storage and
a rugged housing. Mounting hardware for NEXO GeoT
bumpers is included.
NOTE: Observe the laser safety procedures when activating the laser
• Switch on the laser and note where the laser dot falls on the vertical target surface.
Make a mark on the surface at the centre of the laser dot.
• Rotate the Sender Unit 180° around the axis of the laser output beam. Ensure that
the Sender Unit is firmly registered against the fence and observe the new position of
the laser dot. Make a second mark at the centre of the dot and make sure that the two
marks are identified for vertical orientation.
GeoSight MMT - The Meter Unit containing a backlit
display with a two-button menu driven interface. The Meter
Unit operates on 6 x AA batteries.
• Turn the Sender Unit through 90° and repeat the process,
identifying the two laser dots marks for horizontal orientation.
After following this procedure the target surface should have
four marks as shown in the diagram shown right.
• Connect the marks V1 and V2 with a line and similarly
the pair of marks H1 and H2. The point where the two lines
coincide is the calibrated target point for the laser dot. Make a
clear mark on the target surface at this point.
GeoSight LMT - optional high brightness laser
module. This item can be purchased separately and fitted
by the user but requires calibration (see appendix A of this
manual).
• With the Sender Unit firmly registered against the fence adjust the four M3 machine
screws around the circumference of the laser bezel until the laser dot falls on the
desired calibration mark. The adjustment is quite sensitive and more so the further the
target surface is from the Sender Unit. Make only small adjustments to each of the
screws and make sure that the screws are not tightened completely.
• When the calibration is completed place a drop of thread
lock on each of the screw heads and label the sender unit
as having been calibrated with the date and name of the
person doing the work.
GeoSight 30CT - 30m long 6-pin XLR-XLR cable that
connects the Meter Unit to the Sender Unit.
Page 6 - System Components - NEXO GeoSight User Manual
Calibration of the Laser will be required annually to
ensure the precision of the system. It is good practice
to incorporate this task with a general inspection of the
system components for electrical and mechanical safety.
NEXOGeoSightUserManual-CalibratingtheLMTLaserModule-Page15
LIMITED 1 YEAR WARRANTY
Nexo hereby warrants that GeoSight products will be free from defects in materials and
workmanship for a period of 1 year from date of purchase. This warranty EXCLUDES
the following components for which no warranty is offered:
The CT30 cable
The LMT laser diode
The MN1500 batteries supplied.
The above items are either subject to unwarrantable wear and tear or have a life
expectancy which is dependent upon use and treatment (i.e. the Laser Diode has
an expected life of >5000 Hours but could be easily damaged or reduced in life by
rough handling). In the case of a Laser Module misfunction the LMT module should be
removed from the Sender Unit, carefully packed and returned to NEXO for inspection.
Replacement of the Laser Module at any time is at the sole discretion of NEXO.
If you believe that the product is defective within the warranty period please return
it complete to your nearest NEXO dealer who will arrange for the replacement or
repair. Please keep the packaging supplied with the product for this purpose. NEXO
reserves the right to replace or repair products with successful warranty claims at their
discretion.
The warranty does not apply to normal wear and tear, abuse, water penetration or
use in extreme environments. It does not apply in the case of unauthorised repair. All
implied WARRANTIES OF MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE are hereby disclaimed and NEXO hereby disclaims liability for incidental,
special or consequential damages resulting from the use or unavailability of this
product.
If there is no NEXO dealer in your territory please pack the defective product(s)
carefully and send them with a written explanation of the fault to:
NEXO France S.A.
154 allée des Erables
ZAC des PARIS NORD
II B.P. Roissy CDG
Cedex
Please include all of your contact information and a note of the date of purchase.
NEXO will contact you upon receipt.
Other important safety issues
The GeoSight system is primarily a rigging accessory and as such requires careful handling.
Use of the meter does not absolve the user from any other rigging practice or responsibility.
The user must assess risk and method before using GeoSight in any given application. No
liability is accepted on the part of NEXO or it’s agents or representatives for damage, loss or
injury caused as a consequence of using GeoSight or related accessories.
• The Sender Unit must be safely attached to the loudspeaker array structure when used
above 2m from ground level. DO NOT fix the Sender Unit with tape, Velcro or any other
temporary fixing method.
• Always use the GeoT mounting bracket supplied or, if used in other applications, ensure
that a suitable mounting fixture is provided.
• The use of GeoSight does not preclude the obligation to follow normal rigging safety
procedures.
• Be aware that any object left on the top of a PA system during installation may fall when the
system is operated. Always check that all accessories are secured before final hoisting.
• When making adjustments to the PA system with motor hoists always look to the system
– not the Meter Unit! Check the measurement only when you are satisfied that the system
has finished moving safely.
• When using the Meter Unit be aware of other rigging operations around you.
• Always follow the appropriate safety procedures for the site (including wearing the
appropriate protective clothing and headgear).
• Always store the meter unit and the cable properly after use to prevent trip hazards or
damage. GeoSight components are not waterproof. Take care when using them outdoors.
• As with any component of flown loudspeaker arrays, regular safety inspections are
obligatory
• Take care when disposing of batteries. Never throw used batteries into fire or source of
heat. Place them in a suitable waste container.
• GeoSight operates at low voltages and cannot itself give rise to electric shock HOWEVER:
The Sender Unit and the Cable could come into contact with other electrical apparatus
which, if faulty, could result in electrical potential being applied to the GeoSight components.
For this reason always ensure that associated equipment is thoroughly tested.
When using GeoSight outdoors be aware that lightning could strike the Sender Unit. Always
unplug the system in case of electrical storms.
Page 16 - Warranty - NEXO GeoSight User Manual
NEXO GeoSight User Manual - Safety Instructions - Page 5
IMPORTANT SAFETY INSTRUCTIONS
GEOSIGHT SPECIFICATIONS
Size
Length
Width
245mm
160mm
160mm
BST
Sender Unit
Mounting
Bracket
4no. M5 x 15
Cap screws
4no. M5 S/p
washer
2no. Foam
rubber strip
1no. CTL
adapter
164mm
101.6mm
76.2mm
76.2mm
120mm
Height
50.8mm
50.8mm
50.8mm
Weight
1.20Kg
0.55Kg
0.60Kg
0.05Kg
0.45Kg
1.145Kg
Inclinometer only
-
255mW
255mW
-
-
-
Backlight on full
-
495mW
495mW
-
-
-
Laser on
-
-
1800mW
-
-
-
Inclinometer only
-
100 hours
100 hours
-
-
-
Backlight on full
-
50 hours
50 hours
-
-
-
MOST IMPORTANT – safety precautions when using laser equipment.
• NEVER look directly into the laser, even when it is switched off, as someone may
activate it without warning.
Laser on
-
-
14 hours
-
-
-
• WARN others in the venue that you are going to use a laser and move them away
from the target area before activating the GeoSight.
• Ensure that others do not enter the target area of the laser whilst it is in use and
ensure that the meter unit is to hand at all times so that the beam can be switched off
immediately if necessary.
Maximum Output
Power
Beam Diameter (1/e2)
1) Read these instructions.
2) Keep these instructions for future reference and give a copy of them to any other
person who may need to use your GeoSight system.
3) Follow all instructions and heed all warnings.
4) Do not use this apparatus near water.
5) Clean only with dry cloth.
6) Do not use near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
7) Only use attachments/accessories specified by the manufacturer.
8) Unplug this apparatus during lightning storms or when unused for long periods of
time.
9) Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, if liquid has been spilled or objects have
fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
Part No.
Item Description
Accessories (included)
MMT
Meter Unit
SST
Standard
Sender Unit
LST
Sender Unit
with Laser
Module
6 x MN1500
battery
LMT
Laser Module
Option
4no. M3 x 10
Cap screws
30CT
30m
Cable
30m
57mm
Power Consumption
Battery Life (est)
CLASS 2 Laser. This symbol indicates potential hazard
• Use the laser for the minimum amount of time and switch off as soon as the
measurement is complete. Disconnect the cable from the Meter Unit as soon as
possible and ALWAYS ensure that the Meter Unit is
disconnected when the public have access to the
venue.
• NEVER use the laser in any other application than
it is designed. DO NOT operate the laser when
hand holding the Sender Unit. There are serious
penalties for using a laser in any manner that may
cause accident or injury.
!! Particularly it is VERY dangerous to point the
laser at vehicles or aircraft !!
Page 4 - Safety Instructions - NEXO GeoSight User Manual
Laser Class
Class 2 /
IEC825
532nm
Wavelength
<5 mW
<1 mm
Beam divergence
<1.4mrad
Mean time to failure
(based upon laser
diode manufacturer’s
figures)
>5000 hours
NEXO reserves the right to change specifications without notice.
DECLARATION
OF
CONFORMITY
This equipment has been tested and found to comply with the safety objectives and
essential requirements of the 73/23/EEC and 89/336/EEC directives:
EN 60065 (1998) Audio, video and similar electronic apparatus - Safety requirements,
EN55103-1 (1996) Electromagnetic compatibility - Product family standard for audio,
video, audio-visual and entertainment lighting control apparatus for professional use
– Part 1: Emission,
EN55103-2 (1996) Electromagnetic compatibility - Product family standard for audio,
video, audio-visual and entertainment lighting control apparatus for professional use
– Part 2: Immunity.
NEXO GeoSight User Manual - GeoSight Specifications - Page 17
This space is intentionally left blank for user notes:
CONTENTS
IMPORTANT SAFETY INSTRUCTIONS
4
GEOSIGHT SYSTEM COMPONENTS
6
MOST IMPORTANT – safety precautions when using laser equipment.
Other important safety issues
PRINCIPAL
FEATURES OF THE
INSTALLATION
USING
THE
OF THE
GEOSIGHT
SENDER UNIT
FOR
SYSTEM
GEOT SYSTEMS
GEOSIGHT INCLINOMETER SYSTEM
The Operation Menu
Angle display and interpolation
Limits of angle measurement
Adjusting the angle of the PA system using relative values
Preservation of calibration data
OPERATING
7
8
9
9
10
11
11
11
12
THE LASER
Vertical (elevation) reference
Horizontal (azimuth) reference
Laser Visibility
12
12
12
POWER MANAGEMENT
13
SERVICING
13
Automatic power off
Battery condition and replacement
To replace the batteries
Battery Life
INSTALLING
AND
CALIBRATING
Installing the LMT laser module
CALIBRATING
Page 18 - User Notes - NEXO GeoSight User Manual
4
5
THE
LMT
13
13
13
13
THE
LMT LASER MODULE
LASER MODULE
14
14
15
LIMITED 1 YEAR WARRANTY
16
GEOSIGHT SPECIFICATIONS
17
DECLARATION
17
OF
CONFORMITY
NEXO GeoSight User Manual - Table of Contents - Page 3
France
Nexo S.A.
154 allée des Erables
ZAC des PARIS NORD II
B.P. 50107
F-95950 Roissy CDG
Cedex
Tel: +33 1 48 63 19 14
Fax: +33 1 48 63 24 61
E-mail: info@nexo.fr
GeoSight Sender Unit
FAR EAST
Nexo Far East Pte.
Ltd.
No. 10 Ubi Crescent
#02-35/36 Ubi Techpark
(Lobby C)
SINGAPORE 408564
Tel: +65 742 5660
Fax: +65 742 8050
E-mail: info@nexosg.com
USA
Nexo USA Inc.
2165 Francisco Boulevard
Suite E2
San Rafael CA 94901
Tel: +1 415 482 6600
Fax: +1 415 482 6110
E-mail: info@nexo.cc
www.nexo-sa.com
GeoSight Meter Unit
GeoSight Laser Module
User Manual
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