Thermo Scientific 60-12 Service manual

Speed Sensor
Model 60-12
Operating and Service Manual
REC 3016 Rev M
Part number 005876—English

REC 3016 Rev M ii
Model 60-12
Speed Sensor
This document is confidential and is the property of Thermo Fisher Scientific. It may
not be copied or reproduced in any way without the express written consent of
Thermo Fisher Scientific. This document also is an unpublished work of Thermo
Fisher Scientific. Thermo Fisher Scientific intends to, and is maintaining the work as
confidential information. Thermo Fisher Scientific also may seek to protect this work
as an unpublished copyright. In the event of either inadvertent or deliberate
publication, Thermo Fisher Scientific intends to enforce its rights to this work under
the copyright laws as a published work. Those having access to this work may not
copy, use, or disclose the information in this work unless expressly authorized by
Thermo Fisher Scientific.
All registered and unregistered trademarks are the property of their respective
owners.
Thermo Fisher Scientific
50190thAvenueN.W.
Minneapolis, MN 55433 U.S.A.
Tel[phone]
Tel [phone]
Fax [phone]
http://www.thermofisher.com
Printed in the U.S.A.

REC 3016 Rev M iii
Revision History
Revision A
July 1985
Revision B
February 1990
Revision C
October 1990
Revision D
September 1991
Revision E
February 1992
Revision F
June 1993
Revision G
September 1995
Revision H
May 1999
Revision J
February 2001
Revision K
April 2001
Revision L
February 2003
Revision M
November 2008

REC 3016 Rev M iv

REC 3016 Rev M v
Table of Contents
List of Figures......................................................................................................................vi
About this Manual...............................................................................................................vii
Who Should Use this Manual?........................................................................................vii
Documentation Conventions...........................................................................................vii
The following conventions are used in this manual to help easily identify certain types of
information......................................................................................................................vii
Safety Messages............................................................................................................vii
General Precaution.........................................................................................................vii
Occupational Safety and Health Act (OSHA)...................................................................ix
European Directives ........................................................................................................ix
Thermo Fisher Scientific Warranty................................................................................... x
Disclaimer........................................................................................................................xi
Chapter 1 Introduction....................................................................................................1
1.1 Overview ...............................................................................................................1
1.2 Unpacking and Inspection.....................................................................................2
1.3 Storage .................................................................................................................2
Chapter 2 Installation...................................................................................................... 3
2.1 Overview ...............................................................................................................3
2.2 Restraint Arm Installation......................................................................................5
2.3 Alternate Sensor Location.....................................................................................5
2.4 Electrical Wiring .................................................................................................... 9
Chapter 3 Operation..................................................................................................... 11
3.1 Overview ............................................................................................................. 11
3.2 Model 60-12C ..................................................................................................... 11
3.3 Model 60-12F...................................................................................................... 12
3.4 Model 60-12G ..................................................................................................... 15
3.5 Model 60-12 ENC................................................................................................15
Chapter 4 Maintenance ................................................................................................17
4.1 Overview ............................................................................................................. 17
4.2 Calibration........................................................................................................... 17
4.3 Troubleshooting .................................................................................................. 17
Chapter 5 Service Repair and Replacement Parts.......................................................19
5.1 Service and Repair Information........................................................................... 19
5.2 Parts Ordering Information..................................................................................20
5.3 Contact Information.............................................................................................21
5.4 Return Material Authorization..............................................................................23
5.5 Parts List............................................................................................................. 26

REC 3016 Rev M vi
List of Figures
Figure 1-1 Model 60-12 Speed Sensor
Figure 2-1 Method A Installation
Figure 2-2 Method B Installation
Figure 2-3 Mounting Illustration
Figure 2-4 Outline and Mounting Dimensions
Figure 2-5 Wiring of 60-12 Speed Sensor
Figure 3-1 Schematic Model 60-12C Speed Sensor
Figure 3-2 60-12C Output Voltage Waveform
Figure 3-3 60-12F, 60-12G, or 60-12 Enc Output Voltage Waveform
Figure 3-4 Schematic, model 60-12F Speed Sensor
Figure 3-5 Schematic, Model 60-12 ENC
Figure 5-1 Centering Template for Speed Sensor

REC 3016 Rev M vii
About this Manual
This manual provides the information you need to install and maintain a
Model 60-12 Speed Sensor
Read this manual before working with the system. For personal and
system safety, and for the best product performance, make sure you
thoroughly understand the manual before installing, operating, or
maintaining this machine.
Who Should Use this Manual?
The Model 60-12 Speed Sensor Operating and Service Manual is a
learning resource and reference for anyone concerned with installing,
operating, or maintaining the Model 60-12 Speed Sensor.
Documentation Conventions
The following conventions are used in this manual to help easily identify
certain types of information.
•Italic type is used for references to other sections of the manual.
Italic is also used to introduce new terms and for emphasis.
•The names of setup and calibration displays and variables are
shown in FULL CAPITALS.
Safety Messages
Instructions in this manual may require special precautions to ensure the
safety of the personnel performing the operations.
Please read the safety information before performing any operation
preceded by this symbol.
There are two levels of safety messages: warnings and cautions. The
distinction between the two is as follows:
WARNING
Failure to observe could result in death or serious
injury.
CAUTION
Failure to observe may cause minor injury or
damage the equipment
General Precaution
Do not install, operate, or perform any maintenance procedures until you
have read the safety precautions presented.

REC 3016 Rev M viii
WARNING
Failure to follow safe installation and servicing
procedures could result in death or serious injury.
Make sure only qualified personnel perform
installation and maintenance procedures in
accordance with the instructions in this manual.
Allow only qualified electricians to open and work in
the electronics cabinest, power supply cabinest,
control cabinets, or switch boxes.
Covers over the electronics and rotatingpartsmust
always remain in place during normalooperation
Remove only for maintenance, with the machine’s
power OFF. Replace all covers before resuming
operation.
During maintenance, a safety tag (not supplied by
the facotry) is to be displayed in the ON/OFF switch
areas instructing others not to operate the unit
(ANSI:B157.1).
WARNING
High voltage that may be present on leads could
cause electrical shock.
All switches must be OFF when checking input AC
electrical connections, removing or inserting printed
circuit boards, or attaching voltmeters to the
s y s t e m .
Use extreme caution when testing in, on, or around
the electronics cabinet, PC boards, or modules.
There are voltages in excess of 115 V or 230 V in
these areas.
CAUTION
Keep hands and clothing away from all moving or
rotating parts.
CAUTION
Do not operate this equipment at more than the
specified production rate or utilize in applications
other than those stated in the original order.

REC 3016 Rev M ix
WARNING
Use only the procedures and new parts specifically
referenced in this manual to ensure specification
performance and certification compliance.
Unauthorized procedures or parts can render the
instrument dangerous to life, limb, or property.
C AU TION
Do not place or store objects of any kind on the
machine.
Occupational Safety and Health Act (OSHA)
The Occupational Safety and Health Act clearly places the burden of
compliance on the user of the equipment and the act is generalized to
the extent that determination of compliance is a judgment decision on the
part of the local inspection. Hence, Thermo Fisher Scientific will not be
responsible for meeting the full requirements of OSHA in respect to the
equipment supplied or for any penalty assessed for failure to meet the
requirements, in respect to the equipment supplied, of the Occupational
Safety and Health Act, as interpreted by an authorized inspector.
Thermo Fisher Scientific will use their best efforts to remedy such
violation at a reasonable cost to the buyer.
European Directives
Thermo Fisher Scientific products sold in Europe are compliant with
European Directives relating to CE marking and all heads or systems
(head, product transport, and rejecting mechanisms) are labeled in
accordance with the directives. Product labeling is affixed securely,
visible to the user and contains the following information:
•Warnings of any residual risk (nip points, reject mechanisms, inside
PSU areas).
•Name and address of Thermo Fisher Scientific, year of manufacture,
product type, and serial number.
•Supply voltage and frequency. Maximum rated current, value, and
type of fuses in PSU.
•Identification of the protective earth terminal.
•CE mark on machines.

REC 3016 Rev M x
Thermo Fisher Scientific Warranty
The seller agrees, represents, and warrants that the equipment delivered
hereunder shall be free from defects in material and workmanship. Such
warranty shall not apply to accessories, parts, or material purchased by
the seller unless they are manufactured pursuant to seller's design, but
shall apply to the workmanship incorporated in the installation of such
items in the complete equipment. To the extent purchased parts or
accessories are covered by the manufacturer's warranty, seller shall
extend such warranty to buyer.
Seller's obligation under said warranty is conditioned upon the return of
the defective equipment, transportation charges prepaid, to the seller's
factory in Minneapolis, Minnesota, and the submission of reasonable
proof to seller prior to return of the equipment that the defect is due to a
matter embraced within seller's warranty hereunder. Any such defect in
material and workmanship shall be presented to seller as soon as such
alleged errors or defects are discovered by purchaser and seller is given
opportunity to investigate and correct alleged errors or defects and in all
cases, buyer must have notified seller thereof within one (1) year after
delivery, or one (1) year after installation if the installation was
accomplished by the seller.
Said warranty shall not apply if the equipment shall not have been
operated and maintained in accordance with seller's written instructions
applicable to such equipment, or if such equipment shall have been
repaired or altered or modified without seller's approval; provided,
however, that the foregoing limitation of warranty insofar as it relates to
repairs, alterations, or modifications, shall not be applicable to routine
preventive and corrective maintenance which normally occur in the
operation of the equipment.
“EXCEPT FOR THOSE WARRANTIES SPECIFICALLY CONTAINED
HEREIN, SELLER DISCLAIMS ANY AND ALL WARRANTIES WITH
RESPECT TO THE EQUIPMENT DELIVERED HEREUNDER, INCLUD-
ING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
NESS FOR USE. THE SOLE LIABILITY OF SELLER ARISING OUT OF
THE WARRANTY CONTAINED HEREIN SHALL BE EXCLUSIVELY
LIMITED TO BREACH OF THOSE WARRANTIES. THE SOLE AND
EXCLUSIVE REMEDY FOR BREACH OF THE WARRANTIES SET
OUT ABOVE SHALL BE LIMITED TO THE REPAIR OR
REPLACEMENT OF ANY DEFECTIVE ACCESSORY, PART OR
MATERIAL WITH A SIMILAR ITEM FREE FROM DEFECT, AND THE
CORRECTION OF ANY DEFECT IN WORKMANSHIP. IN NO EVENT
SHALL SELLER BE LIABLE FOR ANY INCIDENTAL OR
CONSEQUENTIAL DAMAGES.”
Purchaser agrees to underwrite the cost of any labor required for
replacement; including time, travel, and living expenses of Thermo
Fisher Scientific Field Service Engineer at closest factory base.
THERMO FISHER SCIENTIFIC
501 90TH AVE NW
MINNEAPOLIS, MN 55433
PHONE: [phone] OR 1-800-445-3503
F AX : [phone]

REC 3016 Rev M xi
Disclaimer Though the information provided herein is believed to be accurate, be
advised that the information contained herein is not a guarantee for satis-
factory results. Specifically, this information is neither a warranty nor
guarantee, expressed or implied, regarding performance,
merchantability, fitness, or any other matter with respect to the products,
and recommendation for use of the product/process information in
conflict with any patent. Please note that Thermo Fisher Scientific
reserves the right to change and/or improve the product design and
specifications without notice.

REC 3016 Rev M 1
Chapter 1
Introduction
1.1 Overview
The Thermo Scientific Model 60-12 Speed Sensor is designed and constructed for
direct connection to a conveyor tail pulley, snugging roll, or large diameter return
roller.
The speed sensor employs a brushless pulse generator producing a stream of
pulses, each pulse representing a unit of belt travel. Frequency of the pulse stream
is proportional to true belt speed.
Figure 1-1
Model 60-12
Speed Sensor

REC 3016 Rev M
2
1.1.1 Application
The speed sensor is coupled to a rotating shaft which drives a generator inside the
housing. the Model 60-12C Speed Sensor has a useable range between 20 and 200
RPM. The 60-12F is used for speeds from 3 to 30 RPM, and the 60-12G is used for
speeds from 10 to 200 RPM. The 60-12 ENC Speed Sensor has a 500 pulse per
revolution encoder inside, typically is used on slow RPM applications, and has a
range of 0 to 200 RPM. The frequency of the speed sensor output signal is exactly
proportional to shaft speed and provides the required speed input to a Thermo
Scientific Integrator/Totalizer.
1.2 Unpacking and Inspection
The Model 60-12 Speed Sensor has been properly packaged and inspected prior to
shipment. Before unpacking, be certain to check the package for external damage,
as the carrier may often times be held responsible for shipping damage.
1.3 Storage
The Model 60-12 Speed Sensor can be safely stored indoors, with hole plugs
installed, between -50 and +70 degrees C (-58 to +158 degrees F). The unit must be
protected against moisture.

REC 3016 Rev M 3
Chapter 2
Installation
2.1 Overview
The Models’ 60-12C, F, G and ENC Speed Sensor must be attached to a pulley
shaft which turns at true conveyor belt speed. Normally, the tail pulley shaft or a
snubbing roll shaft satisfies this requirement. In installations where the tail pulley or
snubbing roll shaft is not accessible, an additional pulley must be installed
specifically for the speed sensor (see Section 2.4).
2.1.1 Coupling Installation
Two methods of coupling the speed sensor to the pulley shaft are shown in Figures
2-1 and Figures 2-2. Other methods may work as well, The most important
requirement is that the speed sensor remains free floating and not rigidly coupled to
the conveyor frame.
Note
Never mount speed sensor on a driven pulley
Use the following procedures for coupling installation
2.1.1.1 Method “A”
Locate the exact center of tail pulley or snubbing roll shaft. Figure 5-1 may
be cut out and used as a centering guide. (Refer to Figure 2-1.)
1. Locate circle guide over tail pulley shaft and punch center. Drill a 1-3/4”
deep hole using a 17/32” drill. (Drilling a smaller pilot hole is helpful in
assuring correct centering.)
2. Tap this hole using a 5/8”-11 tap.
3. Clean out oil and dirt with an appropriate solvent and apply a thread lock
retaining compound, such as “LOCKTITE thread locker 262”.
4. Thread in supplied stub shaft coupling (part #037711) so that coupling
collar bottoms out against tail pulley or snubbing shaft. See Figure 2-1.
5. Insert 60-12 speed sensor into coupling. Be sure to align shaft flat spot
with set screws on coupling. Tighten all set screws securely.

REC 3016 Rev M
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Figure 2-1
Method A Installation
2.1.1.2 Method “B”
If customer’s tail pulley shaft has a 5/8” diameter stub shaft extending from
it and is concentric with the centerline of the driving shaft, use part #002931
to couple 60-12 speed sensor to tail pulley shaft. (Refer to Figure 2-2.)
This coupling is not supplied with the speed sensor but may be purchased
separately from Thermo Fisher Scientific.
It would be advisable to provide two flat surfaces, 90º apart, on the stub
shaft for a good set screw holding power.
NOTE
If possible, weld coupling to tail pulley shaft. Do not weld to any part of 60-
12 speed sensor.
Align shaft flat spots with set screws on coupling. See Figure 2-2. Tighten
all set screws securely.
Figure 2-2
Method B Installation

REC 3016 Rev M 5
2.2 Restraint Arm Installation
1. Attach restraint arm to speed sensor with two (supplied) 5/16” x 1-1/4” bolts. See
Figure 2-3. The restraint arm should be mounted in a direction that will allow the
sensor restraint arm to twist against the mechanical stop and in the direction of
belt travel.
2. Weld or otherwise secure an appropriate mechanical stop such as a piece of
scrap iron (or a bolt) to the conveyor frame. Rotate restraint arm to let it rest on
the stop. See Figure 2-3. Make the mechanical stop large enough to
accommodate some lateral movement of the restraint arm.
3. Fit one end of the supplied restraining spring through the hole in the end of the
restraint arm. Attach the other end to the conveyor frame. Location should be
such as to give a 1/2 inch spring stretch. Do not over-tighten spring as this may
cause premature failure. See Figure 2-3.
4. Although not required, it is recommended that a rock or step shield be fabricated
and installed around the speed sensor.
5. Do not connect power to the machine or turn on the unit until you have read and
understood this entire chapter. The precautions and procedures presented in this
chapter must be followed carefully to prevent equipment damage and protect the
operator from possible injury.
NOTE
The purpose of this mounting arrangement is to allow the speed sensor to “float” and
accommodate any slight misalignment of the coupling. Therefore, no resultant
bearing stress is applied due to misalignment, nor will a slight “wobble” of the device
result in electrical errors.
2.3 Alternate Sensor Location
In installations where the tail pulley or snubbing roll shaft is not accessible and
additional pulley must be installed specifically for the speed sensor. When using an
additional pulley for the speed sensor, the following requirements are essential:
1. Select the proper pulley diameter to provide a shaft RPM within the range of the
speed sensor (at rated belt speed or over the range of belt speeds that are of
concern).
2. Locate the pulley on the clean side of the return belt to minimize material build up
on the pulley.
3. Install the unit in such a manner as to provide 15 to 30 degrees contact wrap on
the pulley. Any slippage between belt and pulley will decrease the belt scale
accuracy.
CAUTION
Unless the installation is consistent with the
illustrations shown in Figure 2-1, Figure 2-2,
Figure 2-3, and as described above, the
warranty on the device is void

REC 3016 Rev M
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Figure 2-3
Mounting Illustration
1. Speed Sensor must not be mounted rigid. Use restraint arm and
retaining spring. Mechanical stop and spring mount are by others.
2. Attach spring in location such as to give 1/2” spring stretch.
3. All wiring by others in accordance with system field wiring diagram and
applicable codes.

REC 3016 Rev M 7
Speed
Minimum “A”
Maximum “A”
100 FPM
2”
14”
200 FPM
4”
36”
300 FPM
6”
48”
400 FPM
8”
60”
500 FPM
10”
60”
600 FPM
12”
60”
700 FPM
14”
60”
800 FPM
16”
60”
900 FPM
18”
60”
1000 FPM
20”
60”

REC 3016 Rev M
8
Figure 2-4
Outline and
Mounting Dimensions
Notes:
1. Speed Sensor to be driven by conveyor tail pulley shaft or by special return roll.
2. Unit must bedirectly coupled to driving shaft. Do not drive with chains, belts,
gears, etc.
3. Customer to provide tapped hole 1.75” deep.
4. Do not rigid mount speed sensor.