Entek IRD 6687 User manual

6687
Dual Channel Absoute/
Shell Expansion Monitor
Your Guide to the
6687 Protection Monitor
Entek IRD International Corporation
P/N 45171
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6687 CASE
EXPANSION MONITOR
CHAN 1 CHAN 2
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500.0
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6687 firmware version 2.50
Copyright Notice
Copyright © 1999 by Entek IRD International Corporation
All Rights Reserved
Second Edition 1999
Printed in the U.S.A.
This Manual is supplied to the User under license, subject to recall by Entek IRD International Corporation at any time, and
the Manual at all times remains the property of Entek IRD International Corporation. The information contained in this
Manual is considered confidential. No part of this Manual is to be copied or reproduced or transmitted in any form whatever
(including orally or by electronic transmission), nor is any information in this Manual to be disclosed in any form whatever
(including orally or by electronic transmission) to anyone other than an authorized representative of the User’s employer who
also shall agree not to disclose same, without express prior written consent of Entek IRD International Corporation.
Trademarks
Entek and IRD and registered trademarks of Entek IRD International Corporation.
All trademarks are owned by their respective manufacturers.
Entek IRD International Corporation
Corporate Headquarters
1700 Edison Drive
Milford, Ohio 45151-2729

Entek IRD 6687 Protection Monitor iii
Contents
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Monitor Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Customer Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Display Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Displaying Alternate Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Manually Resetting Relays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Displaying the Monitor Firmware Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Monitor Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
LVDT to Monitor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Non-contact Sensor to Monitor Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
General Configuration Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
User Menu Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
To display the User menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
User menu options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
User menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
To set the date and time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
ALARMS submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Factory Menu Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
To display the Factory menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Factory menu options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Factory menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
COMM’S submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
RANGES submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
TX OK submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
RELAYS submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
DELAYS submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Setting the Display Scale and Zero Position. . . . . . . . . . . . . . . . . . . . . . . . . . . .24

iv Entek IRD 6687 Protection Monitor
Table of Contents
Testing Calibration and Relays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Signal Inputs for Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Calibration and System OK Relay Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Alarm Relay Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6687 Monitor Settings Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

Terms and Conditions
Entek IRD 6600 Series Protection Monitors v
ENTEK IRD INTERNATIONAL CORPORATION
GENERAL TERMS AND CONDITIONS
1. CONTRACT. When Customer accepts a Quotation from Entek IRD International Corporation or an
affiliate (the entity issuing the quotation being "Entek IRD") by issuance of a purchase order or
otherwise and Entek IRD accepts the order, Customer is deemed to have agreed to all the Terms
and Conditions contained herein. Unless otherwise approved in writing, the acceptance of Entek
IRD is expressly conditioned upon Customer accepting these Terms and Conditions, and any
different or additional terms and conditions contained in Customer's order or related documents
are expressly objected to by Entek IRD and not binding upon it. Entek IRD reserves the right to
accept or reject all orders received by it and all orders may only be accepted at the contracting
office of Entek IRD located in Ohio. Entek IRD may accept in writing, by commencement of
performance or otherwise.
2. QUOTATIONS. All quotations expire automatically thirty days from date of quotation or earlier by
notice from Entek IRD. Unless otherwise notedin writing by Entek IRD, all prices are F.O.B. the
place of origin for domestic shipments and Ex Works (as defined in INCOTERMS 1990) for
international shipments; and risk of loss in transit is on Customer. Prices do not include any
applicable taxes, however designated, levied or based upon the goods or services being quoted.
Customer agrees to pay all such taxes or provide acceptable evidence of exemption therefrom.
3. TIMING. All delivery/shipping and service dates stated by Entek IRD are approximate dates only
and estimated in good faith to the best of Entek IRD's ability and are dependent upon Entek IRD's
prompt receipt of all necessary information from Customer. Time shall not be deemed to be of
the essence in Entek IRD's performance of this agreement, and no penalty clause of any
description in any specification or order will be effective unless specifically approved in writing
by an authorized officer of Entek IRD. In any event delivery/shipping and service dates are
always quoted subject to unavoidable delays due to causes beyond Entek IRD's control including
but not limited to strikes, casualty, war, acts of God, systems failure or government action.
4. TERMS. Payment terms for domestic orders are net 10 days from date of invoice, unless otherwise
provided in the quotation. For international orders, Entek IRD reserves the right to specify
prepayment, letter of credit, or payment net 10 days from the date of invoice. Each shipment
shall be considered a separate and independent transaction and payment must be made
accordingly. If the financial condition or credit of Customer at any time in the judgment of Entek
IRD, does not warrant shipment of goods ordered, Entek IRD may at its option require full
payment prior to shipment or refuse to ship and terminate any order outstanding without liability
to Entek IRD. If any sum is not paid by Customer when due, Entek IRD shall not be obligated to
continue performance. If any amount is not paid when due, to the extent permitted by law a late
fee of 1% per month (or any part thereof) shall be charged on past due amounts until paid.
5. CONFIDENTIALITY. If Customer data comes into Entek IRD's possession, Entek IRD shall use
the same level of care to maintain the confidentiality of that data which Entek IRD uses for its
own confidential information. Subject thereto, Entek IRD may use data in its possession to
compile and maintain commercial machinery information databases in which the origin of
specific data is not identifiable by users. Such databases shall be the sole property of Entek IRD.
6. CANCELLATION. Once accepted by Entek IRD, an order is not subject to cancellation in whole
or in part by Customer without Entek IRD's prior written consent. Any such cancellation shall be
subject to a cancellation charge as determined by Entek IRD to cover any loss that may be
incurred by Entek IRD as a result of such cancellation, including without limitation a 25%
restocking charge for standard products.

Terms and Conditions
vi Entek IRD 6600 Series Protection Monitors
7. CUSTOMER RESPONSIBILITIES. Customer shall be solely responsible for the accuracy and
adequacy of the information provided to Entek IRD, and Entek IRD shall not be liable for any
damages resulting from the loss, disclosure or inaccuracy of such information. Customer shall,
for those contracts which include on-site installation, have the installation site prepared at its
expense prior to the scheduled installation date to enable Entek IRD to promptly deliver and
commence installation. The products are not for use in or with any nuclear facility, unless the
Quotation expressly permits such use; and Customer shall indemnify and hold Entek IRD
harmless from all liability (including such liability resulting from Entek IRD's negligence) arising
out of such improper use. Customer shall not send or use the products outside the United States
except in compliance with all applicable law, including U.S. export regulations and restrictions.
8. SOFTWARE AND SERVICES DOCUMENTS. If any computer software, whether incorporated
into a piece of equipment ("firmware"),or provided separately, and related user documentation in
any medium (collectively referred to as "Software") are included in the contract, the terms of the
Entek IRD Standard Software License Agreement shall govern the contract with respect to
Software. If any services other than oil analysis services are included in the contract, the Entek
IRD Standard Field Engineering Services Terms and Conditions shall govern such services.
Those documents are available to Customer upon request, and Customer is responsible to obtain
and read the Standard Software License Agreement and the Standard Field Engineering Services
Terms and Conditions.
9. LIMITED WARRANTIES AND REMEDIES. A. Entek IRD warrants to Customer (and not
anyone else) that (i) all products manufactured by Entek IRD shall be free of defects in materials
and workmanship under normal conditions for a period of one (1) year from the date of shipment
(except that items with limited life such as batteries and lamps are warranted for 90 days from
date of shipment) and that (ii) services will be free from defects in workmanship under normal
conditions, for 90 days from performance. With respect to performance related in any way to the
passage of time to the year 2000 and beyond, or the occurrence of a leap year, Entek IRD does not
make any representation or warranty; Entek IRD has issued a Year 2000 readiness disclosure
statement, which is available to Customer upon request.
B. With respect to any Entek IRD product or service that fails to satisfy the limited warranty
provisions in this Section, as Customer's exclusive remedy, and at Entek IRD's option, Entek IRD
will repair or replace the product or refund its purchase price or refund the purchase price of the
service, provided that any defect is brought to the attention of Entek IRD within the warranty
period. To qualify for this warranty concerning a product Customer must return the defective
product to Entek IRD's designated facility freight prepaid, and after repair or replacement Entek
IRD will return the product freight prepaid; or, if in Entek IRD's opinion the product is
impractical to ship, Customer shall be charged for labor, transportation and subsistence expenses
for the service representative(s) providing the warranty work at Customer's site. Entek IRD alone
will be authorized to furnish or arrange for repairs or replacements.
C. The above limited warranties do not apply, and no warranty, either express or implied, shall be
applicable, (a) to damage resulting from accident, alteration, misuse or abuse, harmful conditions,
systems failure or Act of God; (b) if the product is not installed, operated and maintained
according to procedures recommended by Entek IRD; or (c) if the Entek IRD serial number is
obliterated. In no case shall the limited warranty extend to defects in materials, components, or
services furnished by third parties or to the repair or installation of the product performed by third
parties. The above warranties do not extend to any products sold "as-is" or "as-inspected;" no
warranties, either express or implied, are made with respect to such products.
D. Entek IRD makes no representations or warranties to Customer, or anyone else, with respect to
products manufactured by a third party. Any warranties of the third party manufacturers shall run
directly to Customer to the extent permitted by law and Entek IRD shall have no liability therefor.

Terms and Conditions
Entek IRD 6600 Series Protection Monitors vii
E. The limited warranties in this Section constitute Entek IRD's entire warranty as to the
products and services provided hereunder. ENTEK IRD HEREBY DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING CONFORMITY TO ANY
REPRESENTATION OR DESCRIPTION AND INCLUDING IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSES
WHATSOEVER.
10. EXCLUSIVE REMEDIES AND LIABILITY LIMITATION. THE REMEDIES PROVIDED
HEREIN ARE CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES, AND ENTEK IRD'S
EXCLUSIVE LIABILITY WHETHER ARISING IN CONTRACT, TORT (INCLUDING
NEGLIGENCE), STRICT LIABILITY OR ANY OTHER LEGAL THEORY. CUSTOMER
AGREES THAT NO OTHER REMEDY (INCLUDING, BUT NOT LIMITED TO,
INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOST PROFITS, LOST SALES, LOST
PRODUCTION, OVERHEAD, LABOR, INJURY TO PERSON OR PROPERTY, OR ANY
OTHER INCIDENTAL LOSS) SHALL BE AVAILABLE TO CUSTOMER. THIS
ALLOCATION OF RISK IS REFLECTED IN THE PRICES OF THE PRODUCTS AND
SERVICES. ENTEK IRD'S MAXIMUM LIABILITY HEREUNDER ARISING FROM ANY
CAUSE WHATSOEVER SHALL BE LIMITED TO THE PURCHASE PRICE OF THE
PRODUCTS AND SERVICES IN QUESTION. Any suit related to this Agreement, on any legal
theory, must be commenced within one year after the cause of action accrues.
11. TITLE AND LIEN RIGHTS. Each product shall remain personal property regardless of how it is
affixed to Customer's real property and Entek IRD reserves a purchase money security interest in
the product until the purchase price has been fully paid. Customer agrees to execute, and hereby
appoints Entek IRD as its attorney-in-fact to execute on Customer's behalf, any documents
requested by Entek IRD which are necessary for attachment and perfection of its security interest.
If Customer defaults, Entek IRD shall have all the rights of a secured creditor under the Uniform
Commercial Code as enacted in Ohio.
12. OTHER TERMS. These terms and conditions and any issue, claim or dispute arising hereunder
shall be interpreted under and governed in all respects by the internal laws of the State of Ohio,
and not by the 1980 U.N. Convention on the International Sale of Goods. These terms and
conditions and the written quotation to which they relate constitute the entire contract between
the parties, and supersede all other oral or written statements of any kind whatsoever made by the
parties or their representatives. Waiver by Entek IRD of strict compliance with any one or more
of these Terms and Conditions is not to be considered a continuing waiver or a waiver of any
other term or condition. No statement purporting to modify any of these terms or conditions shall
be binding unless expressly agreed to in writing signed by an officer of Entek IRD and by
Customer.

Terms and Conditions
viii Entek IRD 6600 Series Protection Monitors
ENTEK IRD INTERNATIONAL CORPORATION
STANDARD SOFTWARE LICENSE AGREEMENT
1. LICENSE: This License Agreement ("Agreement") sets forth the terms and conditions on which
software owned by or licensed to Entek IRD International Corporation ("Entek IRD"), whether
incorporated into a piece of equipment (i.e. "firmware") or provided separately, together with
related user documentation in any medium and hardware security keys (together referred to as
"Software"), are licensed to a customer ("Customer"). Each entity that has licensed to Entek IRD
any Software that is being licensed to Customer hereunder, including Oracle Corporation, is a
third party beneficiary of this Agreement, to the extent permitted by law. Upon Customer's use of
or payment for the Software, Customer is deemed to have agreed to all the terms and conditions
contained in this Agreement. Any different or additional terms and conditions contained in
Customer's order or other documents are expressly objected to by Entek IRD and not binding
upon it.
A. Entek IRD grants Customer a non-exclusive and non-transferable license to use each Software
program furnished hereunder solely for Customer's internal use and subject to the following
limitations: If the Software provided is for a single-user system as identified in the quotation,
Customer may use the Software only on a single computer. If the Software provided is for a local
area network (LAN) multi-user system as identified in the quotation, Customer may install the
Software on a single database server and may access the Software only from other network
clients located at the same site. If the Software provided is for a wide area network (WAN) multi-
user system as identified in the quotation, Customer may install the Software on a single database
server and may access the Software only from network clients at the same site and at the number
of remote sites for which Customer purchases licenses. If the Software provided is for a multi-
user system as identified in the quotation, the Customer may use the Software with a single
database server, and the Software may be accessed only by the number of concurrent users for
which Customer purchases concurrent user licenses. TurboMonitor software may be installed
only on a single computer per license. If any Software requires a security key for access,
Customer may use only security keys purchased from Entek IRD.
B. Customer acknowledges that the Software and related documentation including all versions,
corrections, enhancements and improvements thereto, include confidential data and know-how
which are claimed as trade secrets or other proprietary information by Entek IRD and/or its
suppliers. Use of the Software is restricted to object code. Without prior written consent of Entek
IRD, Customer shall not do, or permit or assist others to do any of the following: (i) allow the
Software, related documentation or any portion thereof in any form to be used by any person or
entity other than Customer's employees or agents, and then only to the extent necessary in the
scope of their employment or agency; (ii) copy or otherwise reproduce, disassemble, decompile,
reverse engineer, modify, update, translate, transform into other form, or enhance the Software; or
(iii) disclose or permit access to the Software to any person or entity, except to the extent
necessary to facilitate the permissible use thereof as set forth in (i) above. Entek IRD is under no
obligation to furnish source code for any Software program.

Terms and Conditions
Entek IRD 6600 Series Protection Monitors ix
C. Customer shall not assign or otherwise transfer the license to the Software granted herein
except toa successor in interestto the entire business in which the Software is used, and then only
if the assignee or transferee agrees in writing to be bound by the terms hereof. Timesharing and
rental of the Software is prohibited. Customer warrants that all persons having access to the
Software will observe and perform the obligations set forth in this document. Customer
understands and agrees that the Software is an unpublished work and agrees that the existence of
any copyright notice shall not be construed as an admission or presumption that publication has
occurred. Customer acknowledges, notwithstanding the license granted herein, that all
intellectual property rights in the Software are and shall continue to be exclusively owned by
Entek IRD and/or its suppliers. The Software is "commercial computer software" for purposes of
licenses to any divisions or agencies of the U.S. Federal Government. Customer shall not send or
use the Software outside the United States exceptin compliance with all applicable law, including
U.S. export regulations and restrictions. Entek IRD may enter Customer's premises during normal
business hours to verify Customer's compliance with the terms of this license. Customer may not
publish the results of any benchmark test run on the Software.
D. If Customer data comes into Entek IRD's possession, Entek IRD shall use the same level of
care to maintain the confidentiality of that data which Entek IRD uses for its own confidential
information. Subject thereto, Entek IRD may use data in its possession to compile and maintain
commercial machinery information databases in which the origin of specific data is not
identifiable by users. Such databases shall be the sole property of Entek IRD.
2. LIMITED WARRANTIES.
A. Entek IRD warrants to Customer (and not anyone else) that all Entek IRD Software supplied
by Entek IRD shall perform in substantial conformance with the specifications provided by Entek
IRD in the product manual of such Software for a period of one year from the date of shipment.
With respect to performance related in any way to the passage of time to the year 2000 and
beyond, or the occurrence of a leap year, Entek IRD does not make any representation or
warranty; Entek IRD has issued a Year 2000 readiness disclosure statement, which is available to
Customer upon request. Entek IRD does not warrant that the operation of the CPU or Software
will be uninterrupted or error free. Entek IRD makes no representation or warranty, either express
or implied, with regard to the Software's suitability, capacity, or performance in relation to
Customer's specifications or needs. Entek IRD warrants that the Software does not contain
computer viruses when shipped. It is Customer's responsibility to preserve the integrity of its
computer systems and to conduct virus checks of all Software before it is installed, and this
warranty concerning computer viruses expires when the Software is installed.
B. With respect to any Entek IRD Software which fails to satisfy the limited warranty provisions
in this Agreement, as Customer's exclusive remedy, and at Entek IRD's option, Entek IRD agrees
to repair or replace such defective item without charge, or Entek IRD's sales price therefor shall
be refunded upon return of the defective product to Entek IRD, provided that any defect in the
Software is brought to the attention of Entek IRD within the warranty period; Entek IRD alone
will be authorized to furnish or arrange for repairs or replacements, or to refund Entek IRD's sales
price, within the terms of this limited warranty.
C. The above limited warranties do not apply, and no warranty, either express or implied, shall be
applicable, (a) to damage resulting from accident, alteration, misuse or abuse, harmful conditions
or Act of God; (b) if the product is not installed, operated and maintained according to procedures
recommended by Entek IRD; or (c) if any modifications whatsoever to the Software are made by
anyone except Entek IRD. In no case shall the limited warranty extend to defects in materials,
components, or services furnished by third parties or to the repair or installation of the product
performed by third parties.

Terms and Conditions
xEntek IRD 6600 Series Protection Monitors
D. The limited warranties in this Section constitute Entek IRD's entire warranty as to the
Software provided hereunder. ENTEK IRD AND EACH LICENSOR OF ENTEK IRD
HEREBY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
CONFORMITY TO ANY REPRESENTATION OR DESCRIPTION AND INCLUDING
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY
PARTICULAR PURPOSES WHATSOEVER.
3. PATENT AND COPYRIGHT INDEMNITY. Entek IRD will at its expense, defend Customer
against any claim that any Entek IRD Software furnished under this Agreement infringes a
United States patent or copyright. Entek IRD will pay all costs, damages and attorney's fees that
a court finally awards as a result of such claim. To qualify for such defense and payment,
Customer must 1) give Entek IRD prompt written notice of any such claim, and 2) allow Entek
IRD to control, and fully cooperate with Entek IRD in, the defense and all related settlement
negotiations.
Customer agrees that if the operation of the Entek IRD Software becomes, or Entek IRD believes is
likely to become, the subject of such a claim, Customer will permit Entek IRD at its option and
expense, either to secure the right for Customer to continue using the Entek IRD Software or to
replace or modify it so that it becomes non-infringing. However, if neither of the foregoing
alternatives is available on terms which are reasonable in Entek IRD's judgment, Customer will
return the Entek IRD Software upon Entek IRD's written request. Entek IRD will grant Customer
a credit for any Entek IRD Software whose total charges are fully paid, as Customer's sole
remedy and Entek IRD shall have no other liabilities therefor.
Entek IRD shall have no obligation with respect to any such claim based upon Customer modification
of any Software or its combination, operation or use with apparatus, data or programs not
furnished by Entek IRD or in other than the specified operating environment. This Section states
Entek IRD's entire obligation to Customer regarding infringement or the like.
4. EXCLUSIVE REMEDIES AND LIABILITY LIMITATION. THE REMEDIES PROVIDED
HEREIN ARE CUSTOMER'S SOLE AND EXCLUSIVE REMEDIES, AND ENTEK IRD'S
EXCLUSIVE LIABILITY WHETHER ARISING IN CONTRACT, TORT (INCLUDING
NEGLIGENCE), STRICT LIABILITY OR ANY OTHER LEGAL THEORY. CUSTOMER
AGREES THAT NO OTHER REMEDY (INCLUDING, BUT NOT LIMITED TO,
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR LOST PROFITS, LOST SALES,
LOST PRODUCTION, OVERHEAD, LABOR, INJURY TO PERSON OR PROPERTY, OR
ANY OTHER INCIDENTAL LOSS) SHALL BE AVAILABLE TO CUSTOMER. THIS
ALLOCATION OF RISK IS REFLECTED IN THE PRICE OF THE SOFTWARE. ENTEK
IRD'S MAXIMUM LIABILITY HEREUNDER ARISING FROM ANY CAUSE
WHATSOEVER SHALL BE LIMITED TO THE PURCHASE PRICE OF THE SOFTWARE IN
QUESTION. Any suit related to this Agreement, on any legal theory, must be commenced within
one year after the cause of action accrues.
5. SOFTWARE LICENSE TERM. The Software license granted hereunder shall be effective until
terminated. Customer may terminate the license at any time by returning to Entek IRD the
Software and related documentation together with all copies, modifications, and merged portions
in any form. Entek IRD may terminate this license if Customer breaches any term of this license.
This license will terminate automatically when Customer ceases to use the Software, except for
temporary periods not exceeding one year. When the license terminates no refund shall be made
by Entek IRD, and Customer shall at its expense return to Entek IRD the Software and all related
keys and documentation together with all copies, modifications, and merged portions in any
form. Upon termination Customer must discontinue use and destroy or return to Entek IRD all
copies of the Software and all documentation.
6. MAINTENANCE AND SERVICE. Entek IRD has no obligation, except as otherwise expressly
stated in the Quotation or herein, to provide service, support, technical assistance, updates or
training.

Terms and Conditions
Entek IRD 6600 Series Protection Monitors xi
7. MISCELLANEOUS. Entek IRD may enter Customer's premises from time to time during business
hours and conduct such inspections as Entek IRD deems appropriate to verify Customer's
compliance with this Agreement. This Agreement, any written quotation to which it relates and
the General Terms and Conditions of Entek IRD constitute the entire contract between the parties
with respect to the Software, and supersede all other oral or written statements of any kind
whatsoever made by the parties or their representatives. No statement purporting to modify any
of these terms or conditions shall be binding unless expressly agreed to in writing signed by an
officer of Entek IRD and by Customer. These terms and conditions and any issue, claim or
dispute arising hereunder shall be interpreted under and governed in all respects by the internal
laws of the State of Ohio, and the state and federal courts of Clermont County, Ohio shall have
exclusive jurisdiction and venue over all disputes related to this Agreement or relationship.
Waiver by Entek IRD of strict compliance with any one or more of these Terms and Conditions is
not to be considered a continuing waiver or a waiver of any other term or condition.

Terms and Conditions
xii Entek IRD 6600 Series Protection Monitors

Entek IRD 6687 Protection Monitor 1
6687
1.
6687 Monitor
This manual introduces you to the Entek IRD 6687 protection monitor. It is intended for
anyone who installs, tests, configures, or uses the 6687 protection monitor. This manual
covers the 6687 with the version 2.50 firmware.
Introduction
The Entek IRD 6600 Series protection monitors are part of a modular protection system for
critical machinery. Each monitor is a stand-alone unit, using a separate power supply, relays,
and wiring termination unit. Each monitor in the 6600 Series fulfills a different role in
providing comprehensive machinery protection.
Monitor Description
The 6687 protection monitor provides continuous monitoring of the input signal from a
linear variable differential transformer (LVDT) or non-contact eddy current probe. The 6687
independently monitors the DC value for each input channel, providing position information
from each sensor. In addition, the 6687 continually compares the value to the Alert and
Danger alarm setpoints.
The monitor buffers the last 30 minutes of values (1 per minute) for each channel. In the
event of a Danger alarm, or a “first out” Danger alarm message from another monitor, the
6687 stores this data in a separate memory area. A “first out alarm” is the first alarm in an
interconnected series of monitors. This feature allows later analysis of the data leading up to
the event that caused the Danger alarm. You can retrieve any of this data from the monitor
using the MODBUS protocol through a 4-wire multi-drop serial interface.
Caution: Do not connect the monitors to the transducers until you are sure of the power
connections. Transducers could be damaged if the transducer supply is not correct.
Application
The 6687 is appropriate for monitoring case expansion on a variety of machines. Typically
this involves measuring the thermal growth of one end of the case relative to the fixed
position of the LVDT or non-contact probe. LVDTs are preferred for this application
because they provide a DC signal proportional to the position of the case, and can monitor a
wider linear range than non-contact probes. Case expansion signals are expressed in linear
units of micrometers, millimeters, inches, or mils (1 mil = 0.001").
The 6687 can also monitor the input from a cam potentiometer. It could be used for
applications such as monitoring guide vane position, and includes rotational units (°rot).

2Entek IRD 6687 Protection Monitor
6687 Monitor
Table of Abbreviations
The following table lists the abbreviations used in this manual.
Abbrevia-
tion Definition
eu current engineering unit for the monitor
g g (acceleration)
Hz Hertz (frequency)
in, ins inch, inches
mA milliamp
mil thousandth of an inch
mm millimeter
mV millivolt
pk peak (signal detection)
pp peak to peak (signal detection)
rms root mean square (signal detection)
°rot degrees of rotation
RPM revolutions per minute (frequency)
µm micrometer
VVolt
VAC Volt AC
VDC Volt DC

Monitor Description
Entek IRD 6687 Protection Monitor 3
Front Panel Description
The 6687 front panel appears below. It consists of two bar graphs, showing the position of
the two input channels relative to the full scale. Above the bar graph, the numeric display
shows the actual value for the active input channel. The numeric display automatically
switches between the two input channels every two seconds. The display uses a small line
above the active channel bar graph to indicate the active channel.
The display contains the following information.
There are two BNC connectors below the display, one for each input channel. The two
channel connectors carry a buffered input signal at 25% of the input millivolt sensitivity.
H
L
P
L
I
T
D
I
S
R
E
S
T
S
T
S
E
L
6687 CASE
EXPANSION MONITOR
CHAN 1 CHAN 2
D
A
500.0
mil
D
A
A
DA
D
Retaining screw (4)
HLP button (reserved for future use)
LIT (backlight) button
DIS (display) button
SEL (select) button
Up Arrow button
Down Arrow button
TST button (reserved for future use)
RES (relay reset/acknowledge) button
BNC connectors for
output of buffered input
signals
Display explained below
500.0
mil
D
A
D
A
A
DA
D
Active channel
position value
and units
Active channel indicator
Channel 1 bar graph
showing input signal
Channel 1 high Alert (A),
and Danger (D)
alarm setpoints
Channel 1 low Alert (A),
and Danger (D)
alarm setpoints
Channel 2 bar graph and
input signal
Channel 2 zero point

4Entek IRD 6687 Protection Monitor
6687 Monitor
There are eight push buttons to the right of the display.
Inputs The primary 6687 terminal connections are described below. For a complete listing of the
inputs, see “Monitor Backplane” on page 8.
z
Transducer input for each of the two input channels:
Displacement sensor sensitivity specified in mV/mil, mV/mm, or mV/µm, adjustable in
0.01 mV/eu increments
z
Start-up alarm inhibit signal connections
z
Remote alarm relay reset signal connections
z
First-out alarm signal indicates that a connected monitor has detected an alarm; first-out
Danger alarm signal from another monitor causes this monitor to store the latest “trip
trend” data for later analysis
Outputs
The primary 6687 outputs are described below. For a complete listing of the backplane
outputs, see “Monitor Backplane” on page 8.
z
Isolated 4–20 mA per channel into a maximum load of 600 ohms, scaled so that 20 mA
represents the full scale value for the channel
z
Buffered output signals on the front panel BNC connectors, attenuated to 25%
z
First out event line for each alarm (Alert and Danger) for each channel; these lines
signal connected monitors of an alarm condition, applying common first out alarm
indications across the monitors. In the case of a Danger alarm, this causes all connected
monitors to store their “trip trend” and “trip spectrum” data for later analysis
z
Transducer power supply at +18 VDC, -18 VDC, +24 VDC or -24 VDC
HLP Reserved for future use.
LIT Toggles the display backlight on and off. Under normal conditions, the
monitor turns the backlight off after a period of time. The backlight
automatically turns on and stays on in case of an alarm or input signal
failure. See “Display Backlight” on page 5.
DIS Toggles the display among the alternate display pages. The 6687 has two
display pages. See “Displaying Alternate Pages” on page 6.
RES Resets the alarm relays and acknowledges other messages. See “Manually
Resetting Relays” on page 6.
TST Reserved for future use.
Up Arrow Used when configuring the 6687: moves the menu selection highlight,
increases the value for the selected configuration option.
Down Arrow Used when configuring the 6687: moves the menu selection highlight,
decreases the value for the selected configuration option.
SEL Used when configuring the 6687: selects the highlighted menu option,
accepts the displayed value for the selected configuration option.

Customer Support
Entek IRD 6687 Protection Monitor 5
Customer Support
If you are under warranty or have an active ESAFE Agreement, Entek IRD provides a
variety of Customer Support services. In the United States you can reach the Technical
Support Hotline by dialing (800) ENTEKIRD (1-800-368-3547) Monday through Friday
8:00 a.m.–5:00 p.m. eastern time. Limited extended support for users in the mountain and
Pacific time zones is available until 7:00 p.m. eastern time. You can send a fax detailing
your questions or comments 24 hours a day by dialing [phone]. Please address the
fax to the Customer Support department. You can also reach Entek IRD from your
computer.
z
Send questions to suppo[email protected]
z
Send suggestions and comments to [email protected]
z
Visit our web site at http://www.entekird.com
For support outside of the United States, please contact your local Entek IRD representative
or the nearest Entek IRD office. If your local support representative is not available, please
contact the U.S. Customer Support department.
Basic Operation
This section describes the day-to-day operations for the 6687 protection monitor. It includes
the steps to use the display backlight, display alternate pages, reset the relays after an alarm
(if the alarm relays are set to latching), and display the firmware version. It also describes
the status messages that may appear on the display.
Display Backlight
The backlight makes it easy to see the 6687 display, even in dim light. When the system is
functioning properly and no signals are in alarm, the backlight is off. However, in case of an
alarm or transducer failure, the 6687 automatically turns on the backlight to alert you.
To turn on the backlight, press and release the LIT button. The backlight remains on for
about 3 minutes, after which it automatically turns off. If you press and hold the LIT button
for 5 seconds, the backlight remains on for 10 minutes.
You can manually turn off the backlight by pressing the LIT button once. Note that if the
backlight is on because of a fault condition, you cannot turn it off until the fault or alarm
condition is corrected. If the alarm relays are set to latching (LATCHED option, page 22),
you must also reset the alarm relays with the RES button before the backlight turns off.

6Entek IRD 6687 Protection Monitor
6687 Monitor
Displaying Alternate Pages
The 6687 has two display pages. The first is the one pictured on page 3, and shows the two
bar graphs. To display the second page, press and release the DIS button.
There are three fields in the second display page.
To return to the first display page, press and release the DIS button. For information on
changing the monitor’s serial address or the clock settings, see “Configuration” on page 12.
Manually Resetting Relays
You can configure the 6687 so that you must manually reset the alarm and System OK
relays after an alarm. This feature is controlled by the LATCHED option on the RELAYS
submenu (page 22). To reset the alarm relays for a monitor, press and release theRES
button. The monitor displays the “LOCAL RELAY RESET” message, then returns to the
display page after resetting the relays.
Note: This resets the relays only if the input is no longer in alarm or the fault condition is
corrected.
Displaying the Monitor Firmware Version
The behavior of a 6600 Series protection monitor is controlled by an internal firmware
program. This firmware program has a version number, just like a software program. The
version number may be useful in diagnosing problems with your monitor, should any arise.
Note that the monitor number in the display is the 6682, which is correct because the 6682
and 6687 share the same firmware. To display the firmware version:
1. Press and hold the Down Arrow and the SEL buttons, then also press and hold the
TST button until the Firmware Version screen appears.
2. When finished viewing the Firmware Version screen, use the Down Arrow button to
move the highlight to EXIT.
3. Press SEL to exit the Firmware Version screen.
MOD 1
CLOCK
13:00:00
21/11/99
GAP
10.26 V
GAP
10.26 V
MOD The monitor’s serial address for the RS422/485 interface. MOD is an
abbreviation for Module.
CLOCK The current time and date settings in the monitor (HH:MM:SS,
DD:MM:YY). Time is in military (24 hour) clock—it does not use
AM or PM.
GAP The DC voltage reading for the two channels; the first value is for
channel 1, the second value for channel 2.
VERSION
P X.XX
(C)
19XX
EXIT
SET
MONITOR
6682

Basic Operation
Entek IRD 6687 Protection Monitor 7
Status Messages
The 6687 can display a number of status messages that alert you to alarms or to problems
with the transducers or monitoring system.
Note: The monitor backlight turns on and remains on while any of these messages appears on the
screen. This helps alert you to an alarm or a problem condition.
For information on setting the transducer input range or the alarm settings, see
“Configuration” on page 12.
In addition, there is another message that can appear. This message replaces the normal
display.
z
“SYS FAIL” message - This indicates that the monitor is unable to read the
configuration information from its internal memory. See the manual on 6600 monitor
troubleshooting for diagnostic information.
This message appears when the transducer voltage signal goes out of the
specified range. The number indicates the channel with the transducer fault.
See the manual on 6600 monitor troubleshooting for diagnostic information.
This message appears when the position exceeds one of the Alert alarm
setpoints. The number indicates the channel that exceeded the Alert alarm
setpoint. The underline indicates that the channel was the “first-out” alarm
for this monitor (or series of monitors if interconnected).
This message appears when the position exceeds one of the Danger alarm
setpoints. The number indicates the channel that exceeded the Danger alarm
setpoint. The underline indicates that the channel was the “first-out” alarm
for this monitor (or series of monitors if interconnected).
This message appears when the Danger alarm relays are manually inhibited
with the INHIBIT option on the User menu (page 15).
This message appears when the Danger alarm relays are inhibited (set with
the STARTUP option on the DELAYS submenu, page 24).
TX FAIL
1
ALERT
1
DANGER
1
INHIBIT
1 2
STARTUP
1 2

8Entek IRD 6687 Protection Monitor
6687 Monitor
Installation
This section contains information specific to installing the 6687. Refer to the manual on
6600 monitor installation for general monitor installation instructions.
Monitor Backplane
The following diagram shows the definitions for the 6687 backplane terminals.
The polarity of terminal 4 can be set with jumpers on the power supply. The voltage is set by
the choice of power supply. For more information on configuration of the power supply,
refer to the manual on 6600 monitor power supplies and backplanes.
The relay contacts on the backplane of the 6687 are:
16
41
42
43
44
48
45
46
47
18
19
24
23
20
21
22
17
32 7
35
40
36
37
38
39
34
33
10
15
11
12
13
14
9
8
27
31
29
30
28
26
25
2
6
4
5
3
1
1. SIG IN CHAN 1
2. SIGNAL COMMON
3. SIG IN CHAN 2
4. TRANSDUCER SUPPLY
5. 4-20 mA CHAN 1
6. RETURN CHAN 1
7. 4-20 mA CHAN 2
8. RETURN CHAN 2
9. NOT USED
10. REMOTE RESET
11. START UP INHIBIT
12. RESERVED
13. NOT USED
14. NOT USED
15. NOT USED
16. FIRST OUT ALERT
17. FIRST OUT DANGER
18. MON SER I/O RX+
19. MON SER I/O RX-
20. MON SER I/O TX+
21. MON SER I/O TX-
22. +24V DC POWER A
23. +24V DC POWER B
24. 24V RETURN
POWER CONVENTION
PIN 1 LINE
PIN 2 NEUTRAL
PIN 3 EARTH
9 PIN D CONNECTOR
PIN 1 NOT USED
PIN 2 NOT USED
PIN 3 NOT USED
PIN 4 MON SER I/O TX+
PIN 5 MON SER I/O TX-
PIN 6 NOT USED
PIN 7 NOT USED
PIN 8 MON SER I/O RX+
PIN 9 MON SER I/O RX-
BACKPLANE DIAGRAM FOR A 6687 MONITOR
EARTH
NEUTRAL
LINE
1
5
96
25. RLY1 N/C - SYSTEM OK
26. RLY1 COMM
27. RLY1 N/O
28. RLY2 N/C - CHAN 1 ALERT
29. RLY2 COMM
30. RLY2 N/O
31. RLY3 N/C - CHAN 1 DANGER
32. RLY3 COMM
33. RLY3 N/O
34. RLY4 N/C - CHAN 1 DANGER
35. RLY4 COMM
36. RLY4 N/O
37. RLY5 N/C - CHAN 2 ALERT
38. RLY5 COMM
39. RLY5 N/O
40. RLY6 N/C - CHAN 2 DANGER
41. RLY6 COMM
42. RLY6 N/O
43. RLY7 N/C - CHAN 2 DANGER
44. RLY7 COMM
45. RLY7 N/O
46. DIGITAL COMM
47. NOT USED
48. NOT USED
Function Relay Function Relays Function Relays
System OK 1 Chan 1 Alert 2 Chan 2 Alert 5
Chan 1 Danger 3 and 4 Chan 2 Danger 6 and 7