Kobelt 7178 Series Quick start guide

7178 Panoramic Rudder Angle Indicator
Owner’s Installation, Operation &
Maintenance Manual

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NOTES:
RECORD DATA BEFORE INSTALLATION FOR FUTURE REFERENCE
Model #:
Serial #:
Date of Purchase:
Date of Installation:

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TABLE OF CONTENTS
1Introduction .......................................................................................................... 4
1.1 Contact .......................................................................................................................4
1.2 Safety..........................................................................................................................4
2Product Description ............................................................................................... 6
2.1 Technical Data ............................................................................................................6
3Installation............................................................................................................ 8
3.1 Mechanical .................................................................................................................8
3.2 Electrical .....................................................................................................................8
4Commissioning .................................................................................................... 10
4.1 Electrical Check.........................................................................................................10
4.2 Calibration and Adjustment .....................................................................................10
4.3 Functional Test .........................................................................................................11
5Maintenance ....................................................................................................... 12
5.1 Preventative maintenance .......................................................................................12
5.2 Recommended Spare Parts......................................................................................12
5.3 Legacy Units..............................................................................................................12
6Troubleshooting .................................................................................................. 14
7Warranty............................................................................................................. 15
8Appendix A: Installation Dimensions .................................................................... 16
9Appendix B: Parts List .......................................................................................... 17

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1INTRODUCTION
1.1 CONTACT
Kobelt Manufacturing Co. Ltd.
8238 129th Street
Surrey, British Columbia
Canada, V3W 0A6
Sales Tel:
Fax:
Email:
Website:
[phone]
[phone]
[email protected]
www.kobelt.com
This document is intended to clearly present comprehensive product data and provide
technical information to assist the end user in design applications. Kobelt reserves the right,
without notice, to change the design, or construction, of any products and to discontinue or
limit distribution of any products. Kobelt also reserves the right to change, or update, without
notice, any technical information contained within this document.
Kobelt recommends that customers visit our website to check for updates to this Manual.
Once a product has been selected for use, it should be tested by the user to ensure proper
function in all possible applications. For further instructions, please contact our distributors or
visit our website.
1.2 SAFETY
1.2.1 Safety Alerts
Throughout this manual, the following symbols, and their accompanying explanation, are
used to alert the user to special instructions concerning a service or operation that may be
hazardous if performed incorrectly or carelessly. The associated risk levels are stated below.
This symbol indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury.
This symbol indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
This symbol indicates a hazardous situation, which if not avoided,
could result in minor or moderate injury.
This symbol informs the reader of events not related to personal
injury but which there is a risk of damage to property or equipment.
This symbol informs the reader of safety-related instructions or
procedures.

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1.2.2 Notice to Installer
Disregarding the following safety measures can result in an accident causing severe injury to
personnel and damage to material assets.
•Only use the product as directed in this manual.
•Never put the product into service if there is evidence of visible damage.
•Never put the product into service before fully completing installation and
commissioning.
•Do not carry out any modifications to the product.
•Only use authentic Kobelt spare parts.
•Observe all local regulations, directives and laws during the installation of this product.
•All installation, commissioning, and maintenance work must only be conducted by
qualified personnel. (For the purpose of this manual, qualified personnel are persons
who are familiar with the assembly, installation, commissioning, and operation of the
product and who have the qualifications necessary for their occupation.)
•Observe all specifications in this manual. If these guidelines are not followed and
damage occurs, the warranty will be voided.
1.2.3 Product Hazards
Disconnect Power: Turn off power at distribution panel before
beginning installation to protect installer from electrical hazards.
Voltage and Current Compatibility: Confirm that the power source
is compatible with the maximum voltage and current ratings of the
product variant. Failure to do so could result in damage or fire.
Disassembly and repair of this electronic unit should only be
performed by authorized service personal. Any modification of the
serial number or attempt to repair the original equipment or
accessories by unauthorized individuals will void the warranty.

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2PRODUCT DESCRIPTION
The 7178 Rudder Angle Indicator responds to signals from a Rudder Feedback Unit or
alternative signal sources such as control levers. The signal commands the needle position on
the Indicator. This position can be calibrated to correspond to physical rudder position or the
position of an alternative signal source.
The 7178 Analog Indicator displays rudder angle position, on three scales to provide 230
degrees of viewing angle within the Vessel’s bridge. The indicator is driven by a position
transducer such as the Kobelt 7163, 7168, or 7174 Rudder Feedback Units (RFU).
2.1 TECHNICAL DATA
Table 1: 7178 Technical Data
MODEL
7178 SERIES
KOBELT P/N:
7178-DC12
7178-DC24
NOMINAL VOLTAGE
12 VDC
24 VDC
VOLTAGE RANGE
10.8-15.6 VDC
21.6-31.2 VDC
MAXIMUM CURRENT (METER)
750 mA
590 mA
INPUT
1kΩ
1kΩ
MOVEMENT RANGE
± 45°
ILLUMINATION BULB TYPE
T3-1/4 Wedge Type
MAXIMUM CURRENT; LIGHT BULBS
320 mA
160 mA
Figure 1: Rudder Angle Indicator Overview

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TERMINALS
22-16 AWG, screw clamp
EMC EMMISIONS
per IEC 60945
EMC IMMUNITY
per IEC 60945
COMPASS SAFE DISTANCE
2 in [5 cm]
ENVIRONMENTAL CATEGORY
ENV2 / class A / protected
INGRESS PROTECTION
IP20
OPERATING TEMPERATURE
-4°F … 131°F [-20°C … 55°C]
ENVIRONMENTAL CONDITIONS
per DNV No. 2.4
VIBRATION RESISTANCE
0.7 g
EXTERIOR FINISH
Polyester powder coat, textured black
PRODUCT WEIGHT
13.5 lbs [6.1 kg]

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3INSTALLATION
3.1 MECHANICAL
The indicator must be mounted overhead on a flat surface strong and stiff enough to isolate
the device from vessel vibrations without excessive flexing. Choose a location that has
sufficient sight lines from all areas within the bridge. Allow enough space at the back of the
meter to permit the cable entries.
The indicator is equipped with (4) four clearance holes for #10 (M5) screws or bolts inserted
from underneath for direct mounting to the ceiling. Ensure the unit is securely fastened,
preferably with an anaerobic thread locker such as Loctite 243.
Refer to Appendix A: Installation Dimensions for physical dimensions.
3.2 ELECTRICAL
The 7178 indicator is equipped with two cable glands with which to make the electrical
connections. Use 0.20 inch [5 mm] to 0.47 inch [12 mm] OD cable with 18 AWG conductors
for external connections to the power supply and rudder feedback unit. The RFU cable must
be twisted pair, and shielded to protect the signal integrity. Use ferrules on the cable ends
for all wire connections.
All terminal wire connections to the meter should made using
crimped ferrules to ensure a secure connection for high-vibration
environments.
The 7178 indicator uses a nominal supply voltage of either 12VDC or 24VDC, depending on
the configuration selected. Use a regulated, clean, and reliable source to power the 7178
indicator.
Plug connectors are supplied on the board of the indicator for making the connections to the
circuit board. Power connections are made at connector P4 whereas the potentiometer input
from the RFU is made at connector P3. Rudder Feedback Unit signals shown in the following
figures are provided by standard Kobelt RFUs. Please review the Kobelt website for all RFU
options available.
A circuit breaker of 2A is required between the vessel power supply
source and the indicator(s) as shown in the example installation
diagrams.

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Figure 2: Electrical Connections
Disconnect Power: Turn off power at distribution panel before
beginning installation to protect installer from electrical hazards.

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4COMMISSIONING
4.1 ELECTRICAL CHECK
Ensure that the unit is properly installed and secured before
powering on the 7178.
•Confirm that all electrical connections to the 7178 have been made.
•Confirm that a breaker has been installed correctly and is turned ON.
4.2 CALIBRATION AND ADJUSTMENT
The indicator may need to be adjusted to correct the overall range of the meter to align with
the position of the rudder’s maximum travel or the RFU may need to be adjusted to centre
the pointer.
Follow these instructions to configure the zero point and span using the on-board trimpots.
To reduce the potential for electrical shock and to avoid damaging
the 7178 electronics, use a non-conductive screwdriver, or other
equivalent tool, to adjust the trimpot.
Exercise caution when reaching in with the screwdriver. Do not let it
touch any components other than the trimpot.
Ensure no oil or other contamination enters the 7178 while its cover
is removed.
1. Turn OFF power to the 7178 prior to making adjustment.
2. Remove the bottom access panel.
3. Use a non-conductive flathead screwdriver to make adjustments.
a. Rotate trimpot clockwise to increase
b. Rotate trimpot counterclockwise to decrease
4. Turn ON power.
5. Move rudder through its range to verify desired response.
6. Repeat as necessary, until the 7178 functions as desired.
Default position for all configuration trimpots is at centre.
4.2.1 “ZERO” Trimpot: Adjust Midpoint
Adjustments to the meter zero point, if required, must be made at the rudder feedback unit
(RFU). When the rudder is centered, adjust the feedback potentiometer to align the needle
with the midpoint marking.

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4.2.2 “SPAN” Trimpot: Adjust Range Size
The span adjust trimpot adjusts the range of the meter. The range reported by the RFU will
vary depending on mechanical linkages. This trimpot can be used to calibrate the hard-over
angles. Reference Figure 1: Rudder Angle Indicator Overview for the span trimpot location.
4.3 FUNCTIONAL TEST
Before commencing normal operations with the installed unit(s). A functional test shall be
conducted to ensure proper operation of the system as per the intended application and
configuration.
Functional testing should be done by qualified personnel only. The
system functionality should be fully tested dockside before an open
water sea trail is performed to ensure proper response of the
system based on rudder commands.
After installation perform the following function tests:
1. Center the rudder
a. Ensure that the meter displays 0°. If not, first adjust the RFU lever arm until it is
centered at 0°. If the RFU lever arm is already centered then the potentiometer
inside the RFU will require adjustment.
2. Move the rudder to hard-over
a. Ensure that the meter displays the hard-over angle. If not, adjust the ‘Span’
trimpot until it is at the correct angle.

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5MAINTENANCE
5.1 PREVENTATIVE MAINTENANCE
•Quarterly (4 times per year)
oVisually inspect all wire connections for signs of wear.
•Every year
oConfirm all electrical connections are secure.
oEnsure calibration and zero point of unit.
5.2 RECOMMENDED SPARE PARTS
As a minimum Kobelt recommends the following spare parts are on-hand:
Table 2: Recommended Spares
RECOMMENDED SPARES
QTY
ITEM
KOBELT PART #
4
T3-1/4 BULB, 24 VDC* (ANSI Model: 464)
6001-3641
4
T3-1/4 BULB, 12 VDC* (ANSI Model: 193)
6001-3642
* Select the spare bulb based on the desired operating voltage. Bulbs are the same for all
models of 7178 indicators (including all discontinued models)
The unit contains four T3-1/4 Miniature Wedge Base incandescent bulb holders with pre-
installed bulbs.
5.3 LEGACY UNITS
Depending on the date of purchase, a retrofit motor diver chip may be required if replacing
the motor. When ordering a new motor for Kobelt panoramic RAIs with serial numbers #396
or lower the following parts must be ordered:

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Table 3: Legacy Motor Replacement
QTY
ITEM
KOBELT PART #
1
Motor Subassembly
7178-1003
1
Motor Driver IC
6008-3002-RF
To replace the chip, locate it on the board using Figure 3: Motor driver Chip below, gently pry
out the old chip and press in the replacement.
Figure 3: Motor driver Chip
It is recommended that any required service work on a Kobelt unit
be performed by a factory authorized service representative. Please
contact the nearest Kobelt authorized distributor for assistance.

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6TROUBLESHOOTING
If you encounter problems with the operation of your product, please refer to the trouble-
shooting suggestions before contacting Kobelt for assistance. If the steps below do not
resolve your issue, please reach out either Kobelt directly or our Dealers in your area.
Table 4: Common Solutions
Problem
(Issue encountered)
Cause
(What it means)
Corrective Action
(What to do)
7178 indicator(s) not
operational
Blown fuse/circuit
breaker
Check and replace fuse or reset circuit
breaker. Cycle power to the meter.
Wiring issue
Check for proper wiring
Legacy motor driver
Replace motor driver chip (see sec 5.3)
7178 unit does not
illuminate
Lightbulb not
correctly installed
Check the lightbulb installation and
ensure that all connections have been
properly made
Dimming is turned
down all the way
Adjust the dimming knob until the 7178
unit is adequately illuminated.
7178 illumination too
dim or too bright
Wrong voltage light
installed
Change the bulb to match the system
voltage of either 12 VDC or 24 VDC.
Indicator moves in
opposite direction to
rudder
Potentiometer
power wires are
reversed
Reverse the wiring at connector P3
Correct the wiring following the figure in
Section 3.2.
Port and Starboard
hard-over are not equal
RFU is not installed
or adjusted
properly
Confirm correct installation and
adjustment of the rudder angle
feedback unit.
Rudder center angle
does not read zero
RFU is uncalibrated
Adjust RFU potentiometer as described
in Section 4.2 to adjust scale.
Hard-over angle isn’t
correct
Span trimpot needs
adjustment
Adjust span trimpot as described in
Section 4.2.

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7WARRANTY
Kobelt Manufacturing Co. Ltd. (“Kobelt”) warrants the Products and Parts manufactured by
Kobelt to be free from defects in workmanship or material and that said products are
designed mechanically and functionally to perform to specifications.
This warranty is effective providing:
•The equipment is used within the intended operating conditions and in accordance with
Kobelt recommendations
•The equipment is installed according to equipment diagrams, specifications and
recommendations which Kobelt has provided
This warranty becomes invalid if the factory supplied serial number has been removed or
altered on the product. This warranty does not cover cosmetic damage or damage caused by
an act of God, accident, misuse, abuse, negligence or modification of any part of the product.
This warranty does not cover damage due to improper operation or maintenance, connection
to inappropriate equipment or attempted repair by anyone other than an authorized Kobelt
representative.
Upon identification of a potential issue or defect with a Kobelt Product or Part, the Warranty
Applicant (“Applicant”) must immediately contact Kobelt and describe the issue in writing, by
letter, fax, email or other electronic conveyance. Kobelt will then assess the cause of the
defect, and determine warranty applicability and appropriate remediation.
If any part is found to be defective, Kobelt will replace said part FOB the Kobelt factory
provided that any such defective part is returned by the Buyer with freight and applicable
forwarding charges prepaid by the Buyer. Kobelt’s sole obligation to the Applicant will be to
repair or replace the defective part with same or similar product, to a maximum value of the
list price of the product or part. The Kobelt warranty does not cover labour charges, travel or
any other associated expenses.
All Products and Parts manufactured by Kobelt, are subject to a warranty against
manufacturer’s defects in materials or workmanship for a period of two (2) years from the
date of purchase.
Kobelt will be responsible for all Products or Parts sold by Kobelt but manufactured by 3rd
party manufacturing companies. However, these products and parts are subject to applicable
3rd party warranties, and may not be the same as the Kobelt warranty.

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8APPENDIX A: INSTALLATION DIMENSIONS
Figure 4: Mechanical Dimensions of 7178

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9APPENDIX B: PARTS LIST

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ITEM QTY PART NUMBER DESCRIPTION
1 1 7178-K24V-SUB 7178 MAIN SUBASSEMBLY
1.1 1 7178-0001-B HOUSING, 7178, TEXTURED BLACK
1.2 1 7178-0002 BACK PLATE, 7178
1.3 1 7178-0003 INSPECTION COVER, BACK, 7178
1.4 1 7178-0004 SUPPORT HUB
1.5 1 7178-0005 POINTER HOLDER
1.6 1 7178-0006-B INSPECTION COVER, FRONT, 7178, TEXTURED BLACK
1.7 2 7178-0008 BRACKET, LAMP & TERMINAL BLOCK, 7178
1.8 1 7178-0009-IN LENS, INNER, 7178
1.9 1 7178-0009-OUT LENS, OUTER, 7178
1.1 1 7178-0010 LABEL, SCALE, RUDDER ANGLE
1.11 1 7178-0011 SLEEVE, 7178
1.12 1 7178-0014 SHAFT, 7178
1.13 3 7178-0020 POINTER
1.14 1 POT-5 POTENTIOMETER; 22MM, 5K, 1 TURN
1.15 4 6001-0206 LAMP HOLDER, MINIATURE BAYONET
1.16 1 6009-0004 TERMINAL BLOCK, BARRIERS, 4 POSITION
1.17 1 Y-3220 SPUR GEAR - BRASS; 32P/20T/B STYLE/.250IN BORE
1.18 1 7178-1003 MICROMOTOR SUB-ASSEMBLY
1.19 4 1010-0808 SCREW, RND HD PHIL, #10-24 X 1/2, 18-8 SS
1.2 12 1012-0604 MACHINE SCREW - PAN HD PHIL;, 6-32 X 1/4, 18-8
1.21 3 1016-0804 SCREW, SET, SKT HEAD, CUP POINT, 10-24 X 1/4, 18-8
1.22 1 1024-0512 SPRING PIN, 1/8 X 3/4, AISI 420
1.23 1 1024-0516 SPRING PIN, 1/8 X 1, AISI 420
1.24 2 1012-0606 SCREW, PAN HD, PHL DRIVE, 6-32 x 3/8IN, 18-8 SS
1.25 2 1023-0106 WASHER, FLAT, #6, ANSI B18.22.1 TYPE A, 18-8 SS
1.26 11 1010-0604 MACHINE SCREW - RND HD PHILLIPS; #6-32 X 1/4, 18-8
1.27 6 1009-0604 SCREW, MACHINE, FLAT HD PHILLIPS, 6-32 X 1/4, SS
1.28 1 6639-0001 SHIM WASHER, 10MM X 2MM, AISI 304
2 1 7178-1002 CONTROL BOARD, 7178
3 1 7178-0019 BRACKET, TRIM POT, 7178
4 1 TRIMPOT-3 TRIMPOT, 1K
5 1 TRIMPOT-2 TRIMPOT, 5K
6 1 6009-7625 KNOB, 1/4 IN DIA
7 4 6009-7851 SPACER, NYLON, 3/8
8 2 6001-0248 CABLE GLAND; M16 X 1.5, .197-.394 CABLE, PA6, BLACK
9 4 6001-3641 LIGHT BULB, 1819 TYPE, 28V, T3-1/4, BA9S BASE
10 2 1012-0606 SCREW, PAN HD, PHL DRIVE, 6-32 x 3/8IN, 18-8 SS
11 2 1012-0614 SCREW, PAN HD, PHLP DR, 6-32 X 7/8IN, 18-8
12 4 1022-0106 NUT, HEX, 6-32, 18-8
13 4 1023-0304 WASHER, LOCK, #6, SS
14 2 6001-0248-W-M16 WASHER, SEALING, M16, POLYETHYLENE
15 1 6639-0001 SHIM WASHER, 10MM X 2MM, AISI 304
16 1 6002-4001 SHAFT LOCK FOR TRIM POT
17 2 6014-0318S CABLE; 3C/18AWG/SHLD, 600V, GRY
18 2 1012-0616 SCREW, MACHINE, PAN HD PHILLIPS, 6-32 X 1, SS
Heiko Epkens
Digitallysigned by Heiko
Epkens
Date:2022.03.07 16:44:30
-08'00'

Kobelt Manufacturing Co. Ltd.
8238 129th Street
Surrey, British Columbia,
Canada, V3W 0A6
Sales Tel: [phone]
Fax: [phone]
Email: [email protected]
Website: www.kobelt.com
Made in Canada / Printed in Canada