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.