INSTRUCTION BOOK
OPERATING INSTRUCTIONS
TERMALINE®LOAD RESISTOR
MODEL 8578A100GIG
This is a preliminary manual. Specifications, limits, and text are subject to
change without notice. The information within this manual was as complete
as possible at the time of printing. Bird Electronic Corporation is not liable
for errors.
Electronic Corporation
Cleveland (Solon) Ohio USA
©Copyright 1998 by Bird Electronic Corporation
Instruction Book Part Number 920-8578A100GIG Preliminary
®
Termaline
and Thruline®are Registered Trademarks
of Bird Electronic Corporation
Safety Precautions
The following are general safety precautions that are not necessarily related
to any specific part or procedure, and do not necessarily appear elsewhere in
this publication. These precautions must be throughly understood and ap
plied to all phases of operation and maintenance.
Keep Away From Live Circuits
Operating personnel must at all times observe normal safety regulations. Do
not replace components or make adjustments to the equipment with the high
voltage supply turned on. To avoid casualties, always remove power.
Do Not Service Or Adjust Alone
Under no circumstances should any person reach into an enclosure for the
purpose of service or adjustment of equipment except in the presence of someone who is capable of rendering aid.
Safety Earth Ground
An uninterruptible earth safety ground must be supplied from the main
power source to test instruments. Grounding one conductor of a two conductor power cable is not sufficient protection. Serious injury or death can occur
if this grounding is not properly supplied.
-
Shock Hazard
Do not attempt to remove the RF transmission line while RF power is pres
ent. Radiated RF power is a potential health hazard.
Safety Symbols
WARNING
Warning notes call attention to a procedure, which if not correctly
performed could result in personal injury.
CAUTION
Caution notes call attention to a procedure, which if not correctly
performed could result in damage to the instrument.
This symbol appears on the equipment indicating there is
important information in the instruction manual regarding
that particular area.
-
i
Warning Statements
Note: Calls attention to supplemental informa
+
tion.
-
The following safety warnings appear in the text where there is danger to op
erating and maintenance personnel and are repeated here for emphasis.
WARNING
Do not insert a screwdriver or any thin metal objects through the
perforated cooling air grilles while the load is in operation. The power
within the unit could arc over and will cause serious injury to
personnel and damage to the unit.
WARNING
Disconnect this unit from RF power sources before any disassembly for
repair or replacement procedures. The potential for electrical shock
exists.
WARNING
Surface can reach temperatures in excess of 100°C when maximum
power is applied to load.
WARNING
Limit the interlock terminal to less than 30 Vrms. Although the
interlock terminal is rated to 230 Vac, the potential for electrical shock
exists.
Caution Statements
The following equipment cautions appear in the text whenever the equipment
is in danger of damage and are repeated here for emphasis.
-
CAUTION
Connect interlock before RF operation.
CAUTION
Do not apply more than the rated RF power to load. Excessive RF
power will damage the load resistors.
CAUTION
Do not block airflow. Air enters the housing through perforated grilles
at the side of the unit and exhausts through the opposite grille of the
unit. Blocking these grilles could cause unit failure.
ii
Safety Statements
USAGE
ANY USE OF THIS INSTRUMENT IN A MANNER NOT
SPECIFIED BY THE MANUFACTURER MAY IMPAIR
THE INSTRUMENT’S SAFETY PROTECTION.
USO
EL USO DE ESTE INSTRUMENTO DE MANERA NO
ESPECIFICADA POR EL FABRICANTE, PUEDE
ANULAR LA PROTECCIÓN DE SEGURIDAD DEL
INSTRUMENTO.
BENUTZUNG
WIRD DAS GERÄT AUF ANDERE WEISE VERWENDET
ALS VOM HERSTELLER BESCHRIEBEN, KANN DIE
GERÄTESICHERHEIT BEEINTRÄCHTIGT WERDEN.
UTILISATION
TOUTE UTILISATION DE CET INSTRUMENT QUI
N’EST PAS EXPLICITEMENT PRÉVUE PAR LE FABRICANT PEUT ENDOMMAGER LE DISPOSITIF DE PROTECTION DE L’INSTRUMENT.
IMPIEGO
QUALORA QUESTO STRUMENTO VENISSE
UTILIZZATO IN MODO DIVERSO DA COME
SPECIFICATO DAL PRODUTTORE LA PROZIONE DI
SICUREZZA POTREBBE VENIRNE COMPROMESSA.
SERVICE
SERVICING INSTRUCTIONS ARE FOR USE BY SER
VICE - TRAINED PERSONNEL ONLY. TO AVOID DAN
GEROUS ELECTRIC SHOCK, DO NOT PERFORM ANY
SERVICING UNLESS QUALIFIED TO DO SO.
SERVICIO
LAS INSTRUCCIONES DE SERVICIO SON PARA USO
EXCLUSIVO DEL PERSONAL DE SERVICIO
CAPACITADO. PARA EVITAR EL PELIGRO DE
DESCARGAS ELÉCTRICAS, NO REALICE NINGÚN
iii
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-
Bird Model 8578A100GIG Termaline Load Resistor
SERVICIO A MENOS QUE ESTÉ CAPACITADO PARA
HACERIO.
WARTUNG
ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES
GELTEN NUR FÜR GESCHULTES FACHPERSONAL.
ZUR VERMEIDUNG GEFÄHRLICHE, ELEKTRISCHE
SCHOCKS, SIND WARTUNGSARBEITEN
AUSSCHLIEßLICH VON QUALIFIZIERTEM
SERVICEPERSONAL DURCHZUFÜHREN.
ENTRENTIEN
L’EMPLOI DES INSTRUCTIONS D’ENTRETIEN DOIT
ÊTRE RÉSERVÉ AU PERSONNEL FORMÉ AUX
OPÉRATIONS D’ENTRETIEN. POUR PRÉVENIR UN
CHOC ÉLECTRIQUE DANGEREUX, NE PAS
EFFECTUER D’ENTRETIEN SI L’ON N’A PAS ÉTÉ
QUALIFIÉ POUR CE FAIRE.
ASSISTENZA TECNICA
LE ISTRUZIONI RELATIVE ALL’ASSISTENZA SONO
PREVISTE ESCLUSIVAMENTE PER IL PERSONALE
OPPORTUNAMENTE ADDESTRATO. PER EVITARE
PERICOLOSE SCOSSE ELETTRICHE NON
EFFETTUARRE ALCUNA RIPARAZIONE A MENO CHE
QUALIFICATI A FARLA.
CONNECT INTERLOCK TO TRANSMITTER BEFORE
OPERATING.
BRANCHER LE VERROUILLAGE À L’ÉMETTEUR
AVANT EMPLOI.
CONECTE EL INTERBLOQUEO AL TRANSMISOR AN
-
TES DE LA OPERACION.
VOR INBETRIEBNAHME VERRIEGELUNG AM SENDER
ANSCHLIESSEN.
PRIMA DI METTERE IN FUNZIONE L’APPARECCHIO,
COLLEGARE IL DISPOSITIVO DI BLOCCO AL
TRASMETTITORE.
iv
About This Manual
This instruction book covers the model 8578A100GIG Termaline Load Resis
tor.
This instruction book is arranged so that essential information on safety ap
pears in the front of the book. Reading the Safety Precautions Section before
operating the equipment is strongly advised.
The remainder of this Instruction Book is divided into Chapters and Sections.
At the beginning of each chapter, a general overview describes the contents of
that chapter.
Operation
First time users should read Chapter 1 - Introduction, Chapter 2 - Theory Of
Operation, and Chapter 3 - Installation, to get an overview of equipment capabilities and installation. An experienced operator can refer to Chapter 4 Operating Instructions. All instructions necessary to operate the equipment
appear in this chapter.
Maintenance
All personnel should be familiar with preventative maintenance found in
Chapter 5 - Maintenance. If a failure should occur, the troubleshooting section will aid in isolating and repairing the failure.
Parts
For location of major assemblies or parts, refer to the parts lists and associ
ated drawings in Chapter 5.
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-
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Changes To This Manual
We have made every effort to ensure this manual is accurate. If you should
discover any errors or if you have suggestions for improving this manual,
please send your comment to our factory. This manual may be periodically
updated. When inquiring about updates to this manual refer to the part num
ber and revision level on the title page.
-
v
Bird Model 8578A100GIG Termaline Load Resistor
vi
Table of Contents
Safety Precautions. .......................i
Warning Statements.....................ii
Caution Statements ....................ii
Safety Statements. ....................iii
About This Manual. ....................v
Introduction .....................1
General ..........................1
Description.........................1
Unpacking and Inspection ..................3
Site and Shelter Requirements ................3
Theory Of Operation .................5
General ..........................5
RF Section Description....................5
Heat Transfer .......................5
Interlock Control Circuit ...................5
Installation .....................7
Mounting Location .....................7
Placement .........................7
Interlock Connections ....................7
Connecting RF Line........................8
Swivel Flange Coupling ...................9
Unflanged Coupling .....................9
vii
Bird Model 8578A100GIG Termaline Load Resistor
Operating Instructions ................11
General..........................11
Load Power ........................11
Operation Under Normal and Abnormal Conditions .......11
Shut Down ........................11
Measurement and Monitoring of RF Power ..........12
Maintenance ....................13
Troubleshooting .........................13
Cleaning ............................13
Outside Surfaces ......................13
Interior Surfaces ......................14
Diagnosing the RF Assembly ...................14
Replacing Resistors.....................15
Replacing the Thermoswitch .................15
Customer Service ........................16
Preparation for Storage or Shipment ................16
Storage ..........................16
Shipment .........................16
Replacement Parts List......................17
viii
Chapter 1
Introduction
General The Model 8578A100GIG is an air cooled, high powered
Termaline Load resistor designed to be efficient, rugged and
trouble free. It is designed to be forced air cooled and is ca
pable of dissipating RF line power up to 10 kW, with 1000
3
ft
/min (28.32 m3/min) or more of externally supplied cool
ing air through it. Virtually maintenance free and simple to
operate, this unit should provide years of trouble free opera
tion yet is field repairable in the event of failure of the load
resistor or other components. The RF section is composed of
a parallel combination of resistors.
Description The unit is rectangular in shape. It is supported on three
sides by four bumper feet on each side. The RF input con
nector is located on the front panel of the unit. Perforated
side panel grilles on two sides of the unit allow for direct
forced air cooling of the resistors. The transmitter interlock
is located on the front panel of the unit. The rear and side
panels are removable for servicing. Refer to Figure 1, Outline Drawing.
WARNING
Do not insert a screwdriver or any thin metal objects
through the perforated cooling air grilles while the
load is in operation. The power within the unit could
arc over and will cause serious injury to personnel and
damage to the unit.
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1
Bird Model 8578A100GIG Termaline Load Resistor
Specifications
Impedance 50 ohms nominal
VSWR 1.15:1 maximum 88-108 MHz
Connectors Standard— 1-5/8" Diameter Swivel Flange
Optional— 3-1/8" Diameter Unflanged
Power Rating
10 kW continuous duty @ ³ 1000 ft
(28.32 m
3
/min) of air (externally supplied)
3
/min
Frequency Range 88 - 108 MHz
Dimensions:
with connector:
27-5/8"L x 16-15/32"W x 19-11/16"H
(702 x 418 x 500 mm)
without connector:
25-5/32" x 16-15/32" x 19-11/16"
(639 x 418 x 500 mm)
Ambient Temperature -40°C to +40°C (-40°F to 104°F)
Interlock contact rating 10 Amp @ 120 Vac
5 Amp @ 250 Vac
Cooling Method
Forced air cooled @ ³ 1000 ft
3
m
/min) (externally supplied)
3
/min (28.32
Weight, Nominal 34 lbs (15.3 kg)
Finish Grey Powder Coat
Environmental Specificaiton
Safety: In conformity with European Standard
EN-61010-1:1993 - Safety, Group II in ac
cordance with Council Directive
89/336/EEC (May 3, 1989), on Electro
magnetic Compatibility, as amended by
Council Directive 92/31/EEC (April 28,
1992).
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-
2
Introduction
Unpacking
and
Inspection
Site and
Shelter
Requirements
1. Carefully inspect the shipping container for signs
of damage. If damage is noticed, do not unpack
the unit. Immediately notify the shipping carrier
and Bird Electronic Corporation of the damage.
2. If the container is not damaged, unpack the unit.
Save the packing materials for repacking.
3. Inspect all of the components for visual signs of
damage. Immediately notify the shipping carrier
and Bird Electronic of equipment damage or
missing parts.
The equipment is not intended for exposed outdoor use, or
use in areas of condensing humidity. The surrounding air
must be free of contaminants or particles that could be
drawn into the air intakes. These load resistors have no in
termediate dielectric fluids or coolant and require no cooling
water hookups. The unit should be placed where adequate
space is available for air circulation.
Do not enclose the unit in a small room or closet without
proper ventilation. In small rooms or restricted areas, the
heat given off by the unit may increase the ambient temperature to an unacceptable level for sufficient cooling of the resistors.
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3
Bird Model 8578A100GIG Termaline Load Resistor
Model 8578A100GIG
Figure 1
Outline Drawing
4
Chapter 2
Theory of Operation
General The 8578A100GIG is a high powered, air-cooled, RF load
used for termination of coaxial transmission lines. The RF
energy, when converted into heat, is transmitted directly to
the external area by a forced air system.
RF Section
Description
Heat
Transfer
Interlock
Control
Circuit
The RF section of the 8578A100GIG is composed of a paral
lel combination of tubular resistors. These resistors are
carefully positioned to provide a reduction in surge imped
ance proportional to the distance along the resistive system,
which finally terminates to the housing forming the return
path for the coaxial circuit. This produces a very uniform
and almost reflectionless line termination over the stated
frequencies of the load resistor.
The resistors used in the 8578A100GIG are of a tubular ceramic type, situated in an angled position within their housing. When the unit is in operation, externally forced air is
blown into the side grille opening and directed over the RF
resistor network. The heat, developed in the resistors from
dissipation of the RF energy, is carried off by the flow of air
over the resistors surface. The hot air is then exhausted
through the opposite side grille openings in the unit.
The interlock control circuit provides fail-safe protection of
the transmitter and load resistor in the event of an overload
situation. This protection is necessary because dissipation of
the heat generated by the RF power is critically dependent
upon a required minimum flow of external cooling air at all
times. If the airflow over the resistor array should stop or be
restricted and the temperature in the RF chamber should
rise beyond a safe limit, the heat sensor unit will sense the
change and actuate the interlock relay to reverse the pro
cess and turn off the transmitter. The interlock system will
not permit re-operation of the transmitter until the air flow
is restored and a safe low temperature in the RF housing is
once again attained.
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5
Bird Model 8578A100GIG Termaline Load Resistor
6
Chapter 3
Installation
This chapter provides information for on site requirements,
unpacking, inspection, and preparing the Model
8578A100GIG for use.
Mounting
Location
This unit is designed for use in any of the mounting configu
rations called out in the outline drawing.
CAUTION
Do not block airflow. Air enters the housing through
perforated grilles at the side of the unit and exhausts
through the opposite grille of the unit. Blocking these
grilles could cause unit failure.
Placement For ease of movement, hold the two handles on each side of
the RF input connector, located at the front center of the
unit. Move the unit into position, and rest it on the four
bumper feet.
WARNING
Limit the interlock terminal to less than 30 Vrms.
Although the interlock terminal is rated to 230 Vac,
the potential for electrical shock exists.
CAUTION
Connect interlock before RF operation.
Interlock
Connections
There are three terminals on the interlock connection of the
load. One is a ground terminal, the other two a SPST switch
connection with a rating of 10A@120Vacand5A@250
Vac. Check the requirements of the transmitter interlock
and make the connections to the appropriate terminals as
required.
-
Figure 2
Interlock
Terminal
1
GND
2
SPST
3
SPST
7
Bird Model 8578A100GIG Termaline Load Resistor
1. Attach the transmitter interlock connections to
the three binding posts on the control panel. Re
fer to figure 2.
Connecting RF Line
After installation of the load, the coaxial RF transmission
line may be attached using the standard 1-5/8" EIA Swivel
Flange Connector or the optional 3-1/8" Unflanged Connec
tor kit p/n 8731A700.
Removal of the 1-5/8" EIA Swivel Flange Connector
While following these instructions, refer to figure 3.
1. Using a Hex Key, remove and retain the four
hex screws holding the Swivel Flange Connector
to the top of the unit.
2. Remove and retain the Button head screw located in the center of the Inner Conductor.
Attachment of the 3-1/8" Unflanged Conductor
1. Attach the new Inner Conductor using the button
head screw.
-
-
Figure 3
Replacement
of Flanged
Connector.
8
2. Attach the 3-1/8" Unflanged Connector with two
hex screws to the unit by aligning the alignment
holes over the two hex screws in the top of the
unit.
Note: The coupling must be fastened with all
+
four of the screws. Tighten evenly all around.
Installation
Swivel
Flange
Coupling
Figure 4
Swivel
Flange
Coupling
To couple the swivel flange with a flanged RF transmission
line, use 1-5/8 coupling kit P/N 4712-020. The kit includes:
four 5/16-18 x 1-1/2 bolt and nut sets, O-Ring, and insulated
center bullet. Refer to figure 4 while following the instruc
tion below.
1. Insert the center bullet, push it in until it is
fully seated.
2. Install the O-Ring in the groove.
3. Connect the coaxial input in a straight line, push
carefully on the center conductor to close.
Note: The swivel flange on the load makes con
+
nection independent of a fixed flange on the co
axial input outer conductor.
4. Insert the bolt sets, tighten evenly all around.
RF Coaxial Line
Bolt
Bullet
Flange
-
-
-
Unflanged
Coupling
To couple the 3-1/8” unflanged connector with an unflanged
RF transmission line, use 3-1/8 inch unflanged coupling kit,
P/N 5-726. The kit includes: an outer sleeve with two clamp
ing bands, and the center conductor coupling bullet. Refer to
figure 5 while following the instructions below.
1. Insert the center bullet and bottom it on the
midpoint nibs.
2. Position the outer sleeve, with clamps, over the
input connector.
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9
Bird Model 8578A100GIG Termaline Load Resistor
Figure 5
Unflanged
Coupling
3. Snugly set the transmission line against the cou
pling stops.
4. Position the clamping bands evenly about ¾ inch
from the ends of the sleeve.
6. Tighten the clamping bands.
RF Coaxial Line Clamping Bands Connector Sleeve Bullet
-
Load
10
Chapter 4
Operating Instructions
General The Model 8578A100GIG has no operating controls. When
installed the only requirement is for the interlock switch to
be connected to the RF power source. After applying an air
flow ³ 1000 ft
is now ready to accept RF power. Once the unit is set, there
is no need for the presence of an operator.
Load Power
Surface can reach temperatures in excess of 100°C
Limit the interlock terminal to less than 30 Vrms.
Although the interlock terminal is rated to 230 Vac,
Do not apply more than the rated RF power to the
load. Excessive RF power will damage the load resistor.
3
/min (28.32 m3/min) to the inlet grill the unit
WARNING
when maximim power is applied to load.
WARNING
the potential for electrical shock exists.
CAUTION
-
Do not operated above the rated capacity; i.e. 10kW of
power. The unit will handle a small percentage of overload
until the interlock system’s sensor relay opens due to over
temperature and turns off the transmitter. If a large
amount of overloading occurs, resistor failure is eminent be
fore the interlock system reacts.
Shortly after load power has been applied, the RF line may
be too hot to touch. Disconnect only while following the Shut
Down procedure.
Operation
Under
Normal and
Abnormal
Conditions
Shut Down When operation of the load has been completed, follow these
The interlock is for proper operation at the maximum rated
ambient condition of 40°C (104°F).
The normally closed relay opens at 86°C ± 3°C (186.8°F
±5.4°F) and closes at 80°C ±3°C (176°F ±5.4°F).
steps for shut down.
1. Turn transmitter off.
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11
Bird Model 8578A100GIG Termaline Load Resistor
Note: Always, turn transmitter off first.
+
WARNING
Surface can reach temperatures in excess of 100°C
when maximum power is applied to load.
2. Allow the unit to cool.
3. Disconnect the RF line.
Measurement
Monitoring of
and
RF Power
The Model 8578A100GIG Load Resistor may be used in con
junction with any one of the various Bird rigid coaxial line
Thruline Wattmeters. When fitted with the appropriate line
section and wattmeter, either model becomes a useful tool
for tuning and adjusting a transmitter as well as monitoring
RF power directly in watts. Contact a Bird Sales office for
more information about Thruline wattmeters.
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12
Chapter 5
Maintenance
This chapter covers the cleaning, inspection, troubleshoot
ing, and performance information.
Troubleshooting
WARNING
Disconnect this unit from the RF power sources before
any disassembly for repair or replacement procedures.
The potential for electrical shock exists.
For corrections requiring repair or replacement of compo
nents refer to the appropriate section. Only those functions
within the scope of normal maintenance are listed. This
manual can not list all malfunctions that may occur, or corrective actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify a qualified service
center.
Problem Possible
Cause
Interlock is
active.
High resis
tance
Overheating Higher power at source.
-
One or more
resistors fail
ing.
-
Possible Correction
Make sure input or output
openings for air are not
restricted.
Replace thermoswitch.
Insufficient air flow. The
air flow must be ³ 1000
3
ft
/min (28.32 m3/min).
Replace resistor or resis
tors.
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-
-
Outside
Surfaces
Cleaning
A main factor in effective preventive maintenance is cleanli
ness. For optimum performance and service life, the load
must be kept in a clean, and dust-free condition. During pe
riods of inaction, or if the unit is to be stored for a period of
time, keep the unit covered with a cloth or plastic sheet.
Keeping the unit covered prevents the intrusion of dust, dirt
13
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Bird Model 8578A100GIG Termaline Load Resistor
Interior
Surfaces
or moisture, especially to the RF connector. The outside sur
face of the unit should be wiped free of dust and dirt occa
sionally. When necessary the inner RF housing and the
outside housing may be cleaned with a mild detergent solu
tion on a cloth.
The back and top panel may be removed without difficulty
for cleaning purposes. Give particular attention to the air
intake and exhaust grilles. These grilles must be kept clear
of dust, lint or any matter that may cause restriction of air
flow. If required, clean the surfaces of the resistors using a
soft, damp cloth. Occasionally check the condition of the RF
coaxial connection. If required, disconnect the unit from the
transmission line and clean the RF connector parts, both
metallic and insulator surfaces. When cleaning these parts
and all other electrical parts, use a dry cleaning solvent that
leaves no residue. Use a cloth to wipe the surfaces.
Enclosure Disassembly
WARNING
Disconnect this unit from RF power sources before any
disassembly for repair or replacements procedures. The
potential for electrical shock exists.
As mentioned previously, the Model 8578A100GIG is field
repairable. To disassemble the enclosure proceed with the
following steps:
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-
-
-
14
1. Remove and retain the 18 Phillips head machine
screws from the back panel.
2. Remove the back panel.
With the RF housing back panel removed, the resistor as
sembly can be tested and resistors replaced if necessary.
Diagnosing the RF Assembly
The RF section for the Model 8578A100GIG is comprised of
a parallel combination of 9 resistors resulting in a total
nominal resistance of 53.3 ohms. It is normal for the total
resistance to change by a few ohms from measurement to
measurement as this is a characteristic of the type of ce
ramic resistors used. Wait for the unit to completely cool be
fore measuring the resistance with a digital multimeter. If
the unit is not adequately cooled, measurement errors can
take place due to the resistors inherent thermocouple char
acteristic. If there has been a drastic change in the resis
-
-
-
-
-
Maintenance
tance of the load or if you have reason to suspect a resistor
has failed, the following procedure may be helpful in finding
a faulty resistor.
1. Make a visual inspection of all the resistors.
Check for cracks or burned spots on the surface
of each resistor. If no visual discrepancies are
found to indicate resistor failure, it will be neces
sary to take resistance measurements on each re
sistor individually.
2. Use a digital multimeter or an ohmmeter with
an accuracy of 1% at 50 ohms. After removing
the resistor from its retaining clips connect the
test leads across each resistor end. The individ
ual resistance measurements at 25°C (77°F)
should be 480 ohms ±20%.
3. Record the value of the resistance. If resistors
are found that greatly exceed the respective
ranges, they should be replaced.
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-
Replacing
Resistors
Replacing the
Thermoswitch
The resistors are held very firmly in their clips. Use caution
and carefully remove one end of the resistors at a time. Do
not use excessive force, as there is the possibility of the resistors chipping or cracking.
Assembly
To reassemble the RF assembly and panels, reverse the disassembly instructions given above. Be sure to install all of
the screws in the panels.
WARNING
Disconnect this unit from the RF power sources before
any disassembly for repair or replacement procedures.
The potential for electrical shock exists.
The thermalswitch is located on the backside of the internal
airflow deflector plate closest to the external interlock ter
minal.
1. Remove the 1-5/8 connector from the front panel.
+
Note: Be sure to remove the two small hex
screws holding the inside flange to the panel.
Remove the panel and detach the
thermalswitch wires from the front panel ter
minal
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15
Bird Model 8578A100GIG Termaline Load Resistor
2. Remove the thermalswitch by unbolting the two
screws holding the bracket to the flow detector
plate.
3. Replace the thermalswitch by reversing the pro
-
cedure in steps 1 and 2.
Customer Service
Any maintenance or service procedure beyond scope of those
provided in this section should be referred to a qualified ser
vice center.
All instruments returned for service must be shipped pre
paid and to the attention of the Customer Service Group.
Service Group
U.S.A. Sales and Manufacturing
Bird Electronic Corporation
30303 Aurora Road
Cleveland (Solon), Ohio 44139-2794
Phone: (440) 248-1200
Fax: (440) 248-5426
Sales Offices
For the location of the sales office nearest you, give us a call
or visit our Web site at:
http://www.bird-electronic.com
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Preparation for Storage or Shipment
Storage If the unit is to be unused or stored for any length of time,
cover it with a cloth or plastic sheet and store it in a mois
ture free, cool, dry place. There is no special preparation for
the unit however; moisture will be the greatest concern.
Storage temperatures should remain -40°C to 70°C (-40°F to
158° F) and the relative humidity percentage should remain
low.
Shipment To ship or return the unit to the factory, first secure all
loose parts such as the swivel flange. Pack and seal se
curely in a sturdy wooden box or equivalent, with sufficient
padding to avoid shock damage. If possible, keep the origi
nal shipping carton for reshipment.
16
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Maintenance
Replacement Parts List
Item Qty. Description Part Number
19
21
32
41
51
63
71
818
91
10 12
11 1
Ceramic Resistor 5A2453
Top Panel Assy. 8578A112
Handle 5-957
Front Panel Assy. 8578A117
Thermal Switch 5A2382
Terminal Block, Feed Thru 5A2447
Resistor Bracket Assy. 8578A123
Resistor Clip 5A2443
1-5/8" EIA Swivel Flange Assy. 5-121-1
Bumper, Recessed 5A2406
3-1/8" Flanged Connector Kit 8731A700
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Limited Warranty
All products manufactured by Seller are warranted to be free from defects in
material and workmanship for a period of one (1) year, unless otherwise spec
ified, from date of shipment and to conform to applicable specifications, draw
ings, blueprints and/or samples. Seller’s sole obligation under these
warranties shall be to issue credit, repair or replace any item or part thereof
which is proved to be other than as warranted; no allowance shall be made
for any labor charges of Buyer for replacement of parts, adjustment or re
pairs, or any other work, unless such charges are authorized in advance by
Seller.
If Seller’s products are claimed to be defective in material or workmanship or
not to conform to specifications, drawings, blueprints and/or samples, Seller
shall, upon prompt notice thereof, either examine the products where they
are located or issue shipping instructions for return to Seller (transporta
tion-charges prepaid by Buyer). In the event any of our products are proved
to be other than as warranted, transportation costs (cheapest way) to and
from Seller’s plant, will be borne by Seller and reimbursement or credit will
be made for amounts so expended by Buyer. Every such claim for breach of
these warranties shall be deemed to be waived by Buyer unless made in writing within ten (10) days from the date of discovery of the defect.
The above warranties shall not extend to any products or parts thereof which
have been subjected to any misuse or neglect, damaged by accident, rendered
defective by reason of improper installation or by the performance of repairs
or alterations outside of our plant, and shall not apply to any goods or parts
thereof furnished by Buyer or acquired from others at Buyer’s request and/or
to Buyer’s specifications. In addition, Seller’s warranties do not extend to the
failure of tubes, transistors, fuses and batteries, or to other equipment and
parts manufactured by others except to the extent of the original manufac
turer’s warranty to Seller.
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The obligations under the foregoing warranties are limited to the precise
terms thereof. These warranties provide exclusive remedies, expressly in lieu
of all other remedies including claims for special or consequential damages.
SELLER NEITHER MAKES NOR ASSUMES ANY OTHER WARRANTY
WHATSOEVER, WHETHER EXPRESS, STATUTORY, OR IMPLIED, IN
CLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS, AND
NO PERSON IS AUTHORIZED TO ASSUME FOR SELLER ANY OBLIGA
TION OR LIABILITY NOT STRICTLY IN ACCORDANCE WITH THE
FOREGOING.
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DECLARATION OF CONFORMITY
Manufacturer: Bird Electronic Corporation
Product: TERMALINE LOAD RESISTOR
The undersigned hereby declares, on behalf of Bird Electronic Corporation of
Cleveland, Ohio, that the above-referenced product, to which this declaration relates, is
in conformity with the provisions of the following standards;
1. European Standard EN 61010-1:1993 - Safety, Group II.
This standard is in accordance with Council Directive 89/336/EEC and 92/31/EEC.
The technical documentation file required by this directive is maintained at the corporate
headquarters of Bird Electronic Corporation, 30303 Aurora Road, Cleveland, Ohio.
30303 Aurora Road
Cleveland, Ohio 44139-2794
Model: 8578A100GIG
Ken DeVore
QA/Metrology Manager
Bird ElectronicCorporation
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