IMI SENSORS 691B41 User manual

Model 691B41
Switch Box
Installation and Operating Manual
For assistance with the operation of this product,
contact the IMI-Sensors Division of PCB Piezotronics, Inc.
Division toll-free:
24-hour SensorLine:
Fax: [phone]
E-mail: [email protected]

The information contained in this document supersedes all similar information that
may be found elsewhere in this manual.
Total Customer Satisfaction – PCB
Piezotronics guarantees Total Customer
Satisfaction. If, at any time, for any
reason, you are not completely satisfied
with any PCB product, PCB will repair,
replace, or exchange it at no charge. You
may also choose to have your purchase
price refunded in lieu of the repair,
replacement, or exchange of the product.
Service – Due to the sophisticated nature
of the sensors and associated
instrumentation provided by PCB
Piezotronics, user servicing or repair is
not recommended and, if attempted, may
void the factory warranty. Routine
maintenance, such as the cleaning of
electrical connectors, housings, and
mounting surfaces with solutions and
techniques that will not harm the
physical material of construction, is
acceptable. Caution should be observed
to insure that liquids are not permitted to
migrate into devices that are not
hermetically sealed. Such devices should
only be wiped with a dampened cloth
and never submerged or have liquids
poured upon them.
Repair – In the event that equipment
becomes damaged or ceases to operate,
arrangements should be made to return
the equipment to PCB Piezotronics for
repair. User servicing or repair is not
recommended and, if attempted, may
void the factory warranty.
Calibration – Routine calibration of
sensors and associated instrumentation is
recommended as this helps build
confidence in measurement accuracy and
acquired data. Equipment calibration
cycles are typically established by the
users own quality regimen. When in
doubt about a calibration cycle, a good
“rule of thumb” is to recalibrate on an
annual basis. It is also good practice to
recalibrate after exposure to any severe
temperature extreme, shock, load, or
other environmental influence, or prior
to any critical test.
PCB Piezotronics maintains an ISO-
9001 certified metrology laboratory and
offers calibration services, which are
accredited by A2LA to ISO/IEC 17025,
with full traceablility to N.I.S.T. In
addition to the normally supplied
calibration, special testing is also
available, such as: sensitivity at elevated
or cryogenic temperatures, phase
response, extended high or low
frequency response, extended range, leak
testing, hydrostatic pressure testing, and
others. For information on standard
recalibration services or special testing,
contact your local PCB Piezotronics
distributor, sales representative, or
factory customer service representative.
Returning Equipment – Following
these procedures will insure that your
returned materials are handled in the
most expedient manner. Before returning
any equipment to PCB Piezotronics,
contact your local distributor, sales
representative, or factory customer
service representative to obtain a Return
Warranty, Service, Repair, and
Return Policies and Instructions

Materials Authorization (RMA)
Number. This RMA number should be
clearly marked on the outside of all
package(s) and on the packing list(s)
accompanying the shipment. A detailed
account of the nature of the problem(s)
being experienced with the equipment
should also be included inside the
package(s) containing any returned
materials.
A Purchase Order, included with the
returned materials, will expedite the
turn-around of serviced equipment. It is
recommended to include authorization
on the Purchase Order for PCB to
proceed with any repairs, as long as they
do not exceed 50% of the replacement
cost of the returned item(s). PCB will
provide a price quotation or replacement
recommendation for any item whose
repair costs would exceed 50% of
replacement cost, or any item that is not
economically feasible to repair. For
routine calibration services, the Purchase
Order should include authorization to
proceed and return at current pricing,
which can be obtained from a factory
customer service representative.
Warranty – All equipment and repair
services provided by PCB Piezotronics,
Inc. are covered by a limited warranty
against defective material and
workmanship for a period of one year
from date of original purchase. Contact
PCB for a complete statement of our
warranty. Expendable items, such as
batteries and mounting hardware, are not
covered by warranty. Mechanical
damage to equipment due to improper
use is not covered by warranty.
Electronic circuitry failure caused by the
introduction of unregulated or improper
excitation power or electrostatic
discharge is not covered by warranty.
Contact Information – International
customers should direct all inquiries to
their local distributor or sales office. A
complete list of distributors and offices
can be found at www.pcb.com.
Customers within the United States may
contact their local sales representative or
a factory customer service
representative. A complete list of sales
representatives can be found at
www.pcb.com. Toll-free telephone
numbers for a factory customer service
representative, in the division
responsible for this product, can be
found on the title page at the front of this
manual. Our ship to address and general
contact numbers are:
PCB Piezotronics, Inc.
3425 Walden Ave.
Depew, NY 14043 USA
Toll-free: [phone]
24-hour SensorLineSM: [phone]
Website: www.pcb.com
E-mail: [email protected]
DOCUMENT NUMBER: 21354
DOCUMENT REVISION: B
ECN: 17900

INDUSTRIAL MONITORIN
G INSTRUMENTATION DI
VISION
The Models 691B41 & 691B42 Vibration Switch Boxes
M Mo od de el l 6 69 91 1B B4 41 1 S Sw wi it tc ch h B Bo ox x M Mo od de el l 6 69 91 1B B4 42 2 S Sw wi it tc ch h B Bo ox x
Operating Guide with Enclosed Warranty Information
3425 Walden Avenue, Depew, New York 14043-2495
Phone [phone]
Fax [phone]
Toll Free Line 1-800-959-4IMI
SENSORS AND INSTRUMENTATION FOR MACHINE CONDITION MONITORING
MANUAL NUMBER: 18420
MANUAL REVISION: NR

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CONDITION MONITORING
table of contents
Introduction....................................................................................................................... page 3
Installation........................................................................................................................ page 3
Terminal Strip Wiring........................................................................................................ page 4
Grounding the Enclosure.................................................................................................. page 5
figure 1 –vibration switch box..................................................................................... page 5
Calibration........................................................................................................................ page 5
ESD Warning Information................................................................................................. page 6
warranty/servicing
Warranty, Service & Return Procedure............................................................................ page 7
Customer Service............................................................................................................. page 8

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introduction
The Models 691B41 and 691B42 are vibration switch boxes that provide terminal strip input with the convenience
of BNC outputs. They are used in conjunction with commercially available data collectors and analyzers. They
provide inputs and switched outputs for vibration sensors with built in temperature sensors. A few specifications
are listed below for easy reference:
Model Number Number of Channels
691B41.............................................................................................................................................6
691B42...........................................................................................................................................12
Input Connectors........................................................................................4-Socket Terminal Strip
Output Connector: Vibration.............................................................................................BNC Jack
Output Connector: Temperature ......................................................................................BNC Jack
Enclosure Type .......................................................................................................NEMA 4X (IP67)
Size..............................................................................................8 x 6 x 4 in [203 x 152 x 102 mm]
installation
Establish an easily accessible location for installation and keep in mind that the cabling will be coming from the
bottom panel of the enclosure. Make the necessary holes in the panel for the vibration sensor cabling. Use the
supplied mounting feet to install the enclosure.
NOTE: Be very careful when punching and/or drilling the enclosure as to not damage the internal metal, terminal
strips and printed circuit boards.

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SENSORS AND INSTRUME
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terminal strip wiring
Positive Input
Connect the sensor’s positive input
Negative Input
Connect the sensor’s negative input
Shield
Connect the sensor’s shield; if applicable
TEMP
SH
-
+
TEMP –Temperature Sensor Input
If the vibration sensors have a built-in temperature
sensor, connect the wire to this terminal strip input.

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grounding the enclosure
The enclosure is made of a non-conductive material. To ground the internal shielding system (ground planes on
PC Board, mounting panel and switch enclosure), an external earth ground wire must be connected. To do this,
the bottom, right, inner-mounting hole has a double nut included. Unscrew the nut and insert ground wire
between the washers and screw nut tightly down again. This will earth ground all the shields and the inner metal
pieces. This will not ground the (-) input of the vibration sensors, since they are isolated from the shield.
figure 1 –vibration switch box
calibration
The 691B41 and 691B42 do not need any calibration since they are only switch boxes. If there are any questions
concerning the products, please contact the factory.

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warning 1 –ESD sensitivity
The power supply/signal conditioner should not be opened by anyone other than qualified service
personnel. This product is intended for use by qualified personnel who recognize shock hazards and are familiar
with the safety precautions required to avoid injury.
warning 2 –ESD sensitivity
This equipment is designed with user safety in mind; however, the protection provided by the equipment may be
impaired if the equipment is used in a manner not specified by PCB Piezotronics, Inc.
caution 1 –ESD sensitivity
Cables can kill your equipment. High voltage electrostatic discharge (ESD) can damage electrical devices.
Similar to a capacitor, a cable can hold a charge caused by triboelectric transfer, such as that which occurs in the
following:
 Laying on and moving across a rug,
 Any movement through air,
 The action of rolling out a cable, and/or
 Contact with a non-grounded person.
The PCB solution for product safety:
 Connect the cables only with the AC power off.
 Temporarily “short”the end of the cable before attaching it to any signal input or output.
caution 2 –ESD sensitivity
ESD considerations should be made prior to performing any internal adjustments on the equipment. Any
piece of electronic equipment is vulnerable to ESD when opened for adjustments. Internal adjustments should
therefore be done ONLY at an ESD-safe work area. Many products have ESD protection, but the level of
protection may be exceeded by extremely high voltage.

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warranty
IMI instrumentation is warranted against defective material and workmanship for 1 year unless otherwise
expressly specified. Damage to instruments caused by incorrect power or misapplication, is not covered by
warranty. If there are any questions regarding power, intended application, or general usage, please consult with
your local sales contact or distributor. Batteries and other expendable hardware items are not covered by
warranty.
service
Because of the sophisticated nature of IMI instrumentation, field repair is typically NOT recommended and may
void any warranty. If factory service is required, return the instrumentation according to the “Return Procedure”
stated below. A repair and/or replacement quotation will be provided prior to servicing at no charge. Before
returning the unit, please consult a factory IMI applications engineer concerning the situation as certain problems
can often be corrected with simple on-site procedures.
return procedure
To expedite returned instrumentation, contact a factory IMI applications engineer for a RETURN MATERIAL
AUTHORIZATION (RMA) NUMBER. Please have information available such as model and serial number. Also,
to insure efficient service, provide a written description of the symptoms and problems with the equipment to a
local sales representative or distributor, or contact IMI if none are located in your area.
Customers outside the U.S. should consult their local IMI distributor for information on returning equipment. For
exceptions, please contact the International Sales department at IMI to request shipping instructions and an RMA.
For assistance, please call [phone], or fax us at [phone]. You may also receive assistance via e-
mail at [e-mail] or visit our web site at www.pcb.com.

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customer service
IMI, a division of PCB Piezotronics, guarantees Total Customer Satisfaction. If, at any time, for any reason, you
are not completely satisfied with any IMI product, IMI will repair, replace, or exchange it at no charge. You may
also choose, within the warranty period, to have your purchase price refunded.
IMI offers to all customers, at no charge, 24-hour phone support. This service makes product or application
support available to our customers, day or night, seven days a week. When unforeseen problems or emergency
situations arise, call the IMI Hot Line at [phone], and an application specialist will assist you.
3425 Walden Avenue, Depew, NY 14043-2495
Phone: [phone]
 USA Fax: [phone]  INTL Fax: [phone]
ICP ® is a registered trademark of PCB Piezotronics, Incorporated,
which uniquely identifies PCB sensors that incorporate built-in microelectronics.