IOM
TopWorx engineers are happy to provide technical assistance on GO™ Switch products. However, it is the customer's responsibility to determine the safety and suitability of the product in their application.
It is also the customer's responsibility to install the switch using the current electrical codes in their region.
Stroke-to-GO
Stroke-to-GO™ Switch
Models 7CX & 7DX
Cylinder Position Sensor
Stroke-To-GO™ Switches provide
precise end-of-stroke position indication on pneumatic and hydraulic
cylinders. Designed to exceed automotive industry standards, the housing is machined from stainless steel
bar stock to handle operating pressures to 3,000 PSI while withstanding the extreme external conditions
such as weld slag, coolants, cutting
fluids, physical abuse and even high
temperatures.
Stroke-to-GO™ Switches incorporate the same 70 Series GO™
Switch mechanism that has been
field proven in the most rigorous
applications. This unique design
offers the greatest benefits in cylinder position indication.
Unique Features
Leakage current: None
Voltage Drop: None
Temperature Drift: None
Weld Field Immune: Tested and
exceeded General Motors EHS-320
specifications. Testing Agency Candid Logic.
Radio Frequency Interface (RFI):
No affect at any frequency.
Benefits
70 Series GO Switches are unaffected by weld fields and RF interference.
70 Series GO Switches may be
mounted adjacent to or surrounded
by ferrous metals however the proximity of ferrous metals will affect
sensing distance. For the maximum
rated sensing distance, avoid mounting near ferrous metals.
GO Switches sense ferrous materials such as mild steel, 400 series
and 17/4 stainless steel.
Sensing and differential of switch
may vary depending on target travel
direction.
Avoid contact between target and
switch. Configure mounting of switch
and/or target so that target passes
within the sensing area. Sensing
range will vary according to model
number and mass of target used.
Attachment of Conduit or
Cable
Attach conduit or cable correctly.
– When using long runs of conduit
or cable, place supports close to
the switch to avoid pulling switch
out of position.
– If switch is mounted on a mov-
ing part, be sure flexible conduit
is long enough to allow for
movement, and positioned to
eliminate binding or pulling.
– For installation in hazardous
locations, check local electrical
codes.
– All conduit connected electrical
devices, including GO Switches,
must be sealed against water
ingression through the conduit
system. In figure 1, something
common has occurred, the
conduit system has filled with
water. Over a period of time this
may cause the switch to fail
prematurely. In figure 2, the
termination of the switch has
been carefully filled with electronics grade RTV to prevent
water ingression and to prevent
premature switch failure. A drip
loop with provision for water to
escape has also been installed.
For hazardous locations install per
Electrical Code. Dry contact devices, such as GO Switch, maybe
installed intrinsically safe with
matched barrier. W hen installed as
explosion proof, lead seal fittings
required within 18" of switch.
Conduit
Water
Conduit
Water
Water drain
Thread sealing
compound
RTV
Figure 1. Incorrect
Figure 2. Correct
All GO Switches are "pure" contact switches, meaning they have
no voltage drop when closed,
nor do they have any leakage
current when open. For m ultiunit installation, switches may be
wired in series or parallel, as
shown below.
Series Wiring
Any number of GO Switches may
be wired in series, without voltage
drop. By contrast, solid state
switches have about two volts drop
across the switch when operated.
In a 12 volt solid state system with
four switches in series, 8 volts is
dropped across the switches. Only
4V is left to operate the load.
When using GO Switches, 12V is
still available to operate the load.
(Except 7L - approx. 5V drop)
Visit www.topworx.com for comprehensive information on our
company, capabilities, and products – including model numbers,
data sheets, specifications, dimensions, and certifications.
The Emerson logo is a trademark and service mark of Emerson
Electric Co. ©2013 Emerson Electric Co. ©2013 TopWorx, All rights
reserved. TopWorx, Valvetop, GO Switch, and Leverless Limit Switch are
all trademarks of TopWorx. All other marks are the property of their respective owners. Information herein – including product specifications – is
subject to change without notice.
Asia-Pacific
1 Pandan Crescent
Singapore 128461
+65 6891 7550
Middle East
P.O. Box 17033
Jebel Ali Free Zone
Dubai 17033
United Arab Emirates
+971(4) 811 8100
ES-03531-1 R2
TM
Benefits Continued
For optimum performance, provide sufficient mass of target.
Greater target mass and target
movement fully into and out of
sensing range will increase contact
pressure. This is helpful in low
current controls applications.
For heavy or inductive loads, arc
suppression devices or interposing
relays are recommended for contact longevity. Contact factory for
specifics.
Specifications
Housing
Size: Standard probe lengths:
1.025" (26 mm), and 1.250" (32
mm).
Materials: Stainless Steel bar stock
Conduit Outlet: 1/2”-14 NPT
Sensing
Target Material: Ferrous
Sensing Range: Approx.
.090" (2 mm) end sensing (3,000
PSI) (Recommended air gap .015" .040")
Contacts
Materials: Palladium silver with
Sawtooth® surface configuration
Form: Single Pole, Double Throw
(SPDT) Form C
Electrical Ratings: Resistive
Performance
Repeatability: .002"(.05 mm) typical
Response Time: 8 milliseconds
Differential: Approximately .020"
(.51 mm).
Operating Temperature: -40ºF
(-40ºC) to 302ºF (150ºC)
Pressure Rating: Stainless steel
3,000 PSI operating.
Emerson Process Management
Emerson Process Management is a powerful, global, single
source of process improvement technology and expertise. We
help major companies in selected industries optimize their plants
and processes to achieve higher quality, greater reliability and
faster time to market, while steadily advancing productivity and
profitability.
We can build it - providing experienced project management,
engineering and a single point of accountability for the entire
instrumentation and automation system. We can connect it --
seamlessly integrating people and technology at every level of
the process. We can improve it -- creating more efficient utiliza-
tion of energy and raw materials. And we can sustain it -- pro-
ducing greater reliability, month after month, year after year.
From the field, to the plant, to the bottom line -- where perfor-
mance is the question, Emerson is the answer.
www.topworx.com
GLOBAL SUPPORT OFFICES
Americas
3300 Fern Valley Road
Louisville, Kentucky 40213 USA
+1 502 969 8000
Europe
Horsfield Way
Bredbury Industrial Estate
Stockport SK6 2SU
United Kingdom
+44(0)161 406 5155
Africa
24 Angus Crescent
Longmeadow Business Estate East
Modderfontein
Gauteng
South Africa
+27 011 451 3700
Parallel Wiring
When solid state switches are
placed in parallel, there is about
100 microamps leakage through
each switch. If ten solid state
switches were wired in parallel, the
total leakage current would be 1000
microamps or one milliamp - sufficient current to indicate an "ON"
condition to a programmable logic
controller (PLC). Any number of
GO™ Switches may be wired in
parallel, with no current leakage
and without drawing operating
current. (Except 7L - approx. 5V
drop)
EU Declaration of Conformity
The products described herein, conform to the provisions of the following
Union Directives, including the latest amendments:
Low Voltage Directive (2014/35/EU)
EMD Directive (2014/30/EU)
UNION Directive (2014/34/EU)
9. TERMS OF PAYMENT: Subject to the approval of Seller's Credit Department,
terms are F.O.B. shipping point, net 30 days from date of Seller's invoice in U.S.
currency, except for applicable milestone payments covered below or export shipments for which Seller may require other arrangements. Freight charges may include
shipping and handling charges, and Buyer shall pay all such charges. If any payment
owed to Seller hereunder is not paid when due, it shall bear i nterest at a rate 1-1/2%
per month interest from the date on which it is due until it is received and future
shipments may be placed on hold. Seller shall have the right, among other remedies,
either to terminate the Agreement or to suspend further deliveries under this and/or
other agreements with Buyer in the event Buyer fails to make any payment hereunder
when due. Buyer shall be liable for all expenses attendant to collection of past due
amounts, including attorneys' fees. Unless otherwise provided in Seller's written
quotation, periodic milestone payments shall be made by Buyer when the purchase
price of this Agreement exceeds $100,000. In such cases, invoices shall be issued by
Seller and paid by Buyer based on the following milestones: Milestone 1: 30% of
price upon acceptance of order by Seller. Milestone 2: 30% of price upon release by
Seller of approved bills of material to m anufacturing for assembly. Milestone 3: 40%
of price upon shipment of the Goods by Seller. Seller reserves the right to designate
additional Milestones where the Agreement provides for Services in excess of
$50,000.
10. SOFTWARE AND FI RMWARE: Notwithstanding any other provision herein to the
contrary, Seller or applicable third party owner shall retain all rights of ownership and
title in its respective firmware and software, including all copyrights relating to such
firmware and software and all copies of such firmware and software. Except as
otherwise provided herein, Buyer is hereby granted a nonexclusive, royalty free
license to use firmware and software, and copies of firmware and software, incorporated into the Goods only in conjunction with such Goods and only at the Buyer’s
plant site where the Goods are f irst used. Buyer may negotiate with Seller separate
licenses to use such copies and firmware and software at other plant sites. Buyer’s
use of certain firmware (as specified by Seller) and all other software shall be
governed exclusively by Seller’s and/or third party owner’s applicable license terms.
11. BUYER SUPPLIED DATA: To the extent that Seller has relied upon any specifications, information, representation of operating conditions or other data or information supplied by Buyer to Seller (“Data”) i n the selection or design of the Goods
and/or provision of the Services and the preparation of Seller's quotation, and in the
event that actual operating conditions or other conditions differ from those represented by Buyer and relied upon by Seller, any warranties or other provisions contained
herein which are affected by such conditions shall be null and void.
12. EXPORT/IMPORT: Buyer agrees that al l applicable import and export control
laws, regulations, orders and requirements, including without limitation those of the
United States and the European Union, and the jurisdictions in which the Seller and
Buyer are established or f rom which items may be supplied will apply t o its receipt
and use of Goods and Services. In no event shall Buyer use, transfer, release,
import, export, or re-export Goods in violation of such applicable laws, regulations,
orders, or requirements.
TOPWORX TERMS AND CONDITIONS OF SALE
These terms and conditions, the attendant quotation or acknowledgment, and
all documents incorporated by reference therein, binds TopWorx, Inc. hereinafter the Seller, and the buyer, hereinafter Buyer, and constitutes the entire
agreement (Agreement) between Buyer and Seller for the provision of services
(Services) and/or the sale of goods (Goods) including (except as provided i n
Section 10) firmware incorporated therein.
1. PRICES: Unless otherwise specified by Seller, Seller's price for the Goods
and/or Services shall remain in effect for thirty (30) days after the date of
Seller's quotation or acceptance of the order for the Goods/Services, whichever
is delivered first, provided an unconditional, complete authorization for the
immediate manufacture and shipment of the Goods and/or provision of Services pursuant to Seller's standard order processing procedures is received and
accepted by Seller within such time period. If such authorization is not received
by Seller within such thirty (30) day period, Seller shall have the right to change
the price for the Goods/Services to Seller's price in effect for the Goods/
Services at the time the order is released to final manufacture. Prices for Goods
do not cover storing, installing, starting up or maintaining Goods unless expressly stated in Seller’s quotation. Notwithstanding the foregoing, the price f or
Goods/Services sold by Seller, but manufactured by others, shall be Seller's
price in effect at the time of shipment to Buyer.
2. DELIVERY, ORDER ACCEPTANCE AND DOCUMENTATION: All shipping
dates are approximate and are based upon Seller's prompt receipt of all
necessary information from Buyer to properly process the order. Notwithstanding any provisions to the contrary in this or other documents related to this
transaction, and regardless of how price was quoted, whether FOB, FAS, CIF
or otherwise, legal title to the Goods and ri sk of loss thereto shall transfer to
Buyer as f ollows: for sales in which the end destination of the Goods is within
the United States, upon delivery to the freight carrier at the shipping point; for
sales in which the end destination of the Goods is outside of the United States,
immediately after the Goods have passed beyond the territorial limits of the
United States. Seller shall provide Buyer with that data/documentation which is
specifically identified in the quotation. If additional copies of data/documentation
or non-standard data/documentation are to be provided by Seller, they shall be
provided to Buyer at Seller's price then in effect. Data/documentation marked
as confidential or proprietary may not be reproduced or used for any purpose
other than the purpose for which it was provided and may not be disclosed to
third parties without the prior written permission of Seller.
3. EXCUSE OF PERFORMANCE: Seller shall not be liable for delays in
performance or for non-performance due to failure or interruption of computer
or telecommunication systems, acts of God, war, riot, fire, terrorism, labor
IOM
Stroke-to-GO
Special Conditions for Safe Use and Possible Misuse
-The oversheathed or individual conductors must be suitably protected against mechanical damage and terminated within a terminal or
junction facility suitable for the conditions of use.
-Three wire devices are not provided with an external connection
facility for the earthing or bonding conductor. It is the user's responsibility to ensure adequate earth continuity via the mounting arrangements.
-The proximity switches do not require a connection to earth for safety purposes, but an earth connection is provided which is directly
connected to the metallic enclosure. Normally an intrinsically safe
circuit may be earthed at one point only. If the earth connection is
used, the implications of this must be fully considered in any installation. i.e. by the use of a galvanically isolated interface.
-The switch must be supplied from a Certified Ex ia IIC intrinsically
safe source.
-The flying leads must be terminated in a manner suitable for the
zone of installation.
-An external ground connection must be protected by an external
mounting device and / or cable connections / conduits.
Application Considerations
Cylinder cushion must be ferrous.
Air gap between switch sensing face and cushion
should be .015" to .040" (outside this range please
consult factory).
Largest diameter of target (cushion) should cover at
least 75% of probe sensing face.
Sensing face of Stroke-To-GO Switch must be at
least .125" from piston rod for proper switch reset. This
may at times require an air gap distance greater than
.040".
For cushion diameters less than .50", air gap should
be .015" to .025".
Stroke-to-GO Wiring Diagrams
Ex ia llC T* Ga; Ex ia lllC T*C Da
Ambient temperatures as low as –40°C up to 150°C available for
certain products.
(Reference Certificate for specific marking)
Baseefa 09ATEX0173X
IECEx BAS 09.0080X
0518
II 1GD
Reference Baseefa Certificate for special conditions.
All area classifications are dictated by the model number.
Reference GO Switch brochure for complete listing.
trouble, unavailability of materials or components, explosion, accident, compliance with governmental requests, laws, regulations, orders or actions, or other
unforeseen circumstances or causes beyond Seller's r easonable control. In the
event of such delay, the time for performance or delivery shall be extended by a
period of time reasonably necessary to overcome the effect of the delay.
4. TERMINATION AND SUSPENSION BY BUYER: Buyer may terminate or
suspend its order for any or all of the Goods/Services covered by the Agreement provided t hat Buyer gives Seller reasonable advance written notice of
such termination or suspension and reim burses Seller for all losses, damages,
costs and expenses arising from such termination or suspension.
5. LIMITED WARRANTY: Subject to the limitations contained in Section 6
herein, Seller warrants that the licensed firmware embodied in the Goods will
execute the programming instructions provided by Seller, and that the Goods
manufactured or Services provided by
Seller will be free from defects in materials or workmanship under normal use
and care. The foregoing warranties will apply until the expiration of the applicable warranty period. All other Goods are warranted for twelve (12) months from
the date of shipment by Seller. Consumables and Services are warranted for a
period of 90 days from the date of shipment or completion of the Services.
Products purchased by Seller from a third party for resale to Buyer (“Resale
Products”) shall carry only the warranty extended by the original manufacturer.
Buyer agrees t hat Seller has no liability for Resale Products beyond m aking a
reasonable commercial effort to arrange f or procurement and shipping of the
Resale Products. If Buyer discovers any warranty defects and notifies Seller
thereof in writing during the applicable warranty period, Seller shall, at its option,
correct any errors that are found by Seller in the firmware or Services or repair
or replace F .O.B. point of m anufacture that portion of the Goods or firmware
found by Seller to be defective, or refund the purchase price of the defective
portion of the Goods/Services. All replacements or repairs necessitated by
inadequate maintenance, normal wear and usage, unsuitable power sources or
environmental conditions, accident, misuse, improper installation, modification,
repair, use of unauthorized replacement parts, storage or handling, or any other
cause not the fault of Seller are not covered by this limited warranty, and shall
be at Buyer’s expense. Seller shall not be obligated to pay any costs or charges
incurred by Buyer or any other party except as may be agreed upon in writing in
advance by Seller. All costs of dismantling, reinstallation and freight and the
time and expenses of Seller’s personnel and representatives for site travel and
diagnosis under this warranty clause shall be borne by Buyer unless accepted
in writing by Seller. Goods repaired and parts replaced by Sell er during the
warranty period shall be in warranty for the remainder of the original warranty
period or ninety (90) days, whichever is l onger. This limited warranty is the only
warranty made by Seller and can be amended only in a writing signed by Seller.
THE WARRANTIES AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE.
THERE ARE NO REPRESENTATIONS OR WARRANTIES OF ANY KIND,
EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE OR ANY OTHER MATTER WITH RESPECT TO ANY OF
THE GOODS OR SERVICES.
6. LIMITATION OF REMEDY AND LIABILITY: SELLER SHALL NOT BE
LIABLE FOR DAMAGES CAUSED BY DELAY IN PERFORMANCE. THE
REMEDIES OF BUYER SET FORTH IN THIS AGREEMENT ARE EXCLUSIVE. IN NO EVENT, REGARDLESS OF THE FORM OF THE CLAIM OR
CAUSE OF ACTION (WHETHER BASED IN CONTRACT, INFRINGEMENT,
NEGLIGENCE, STRICT LIABILITY, OTHER TORT OR OTHERWISE), SHALL
SELLER’S LIABILITY TO BUYER AND/OR ITS CUSTOMERS EXCEED THE
PRICE TO BUYER OF THE SPECIFIC GOODS MANUFACTURED OR
SERVICES PROVIDED BY SELLER GIVING RISE TO THE CLAIM OR
CAUSE OF ACTION. BUYER AGREES THAT IN NO EVENT SHALL
SELLER’S LIABILITY TO BUYER AND/OR ITS CUSTOMERS EXTEND TO
INCLUDE INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES. THE
TERM “CONSEQUENTIAL DAMAGES” SHALL INCLUDE, BUT NOT BE
LIMITED T O, LOSS OF ANTICIPATED PROFITS, REVENUE OR USE AND
COSTS INCURRED INCLUDING WITHOUT LIMITATION FOR CAPITAL,
FUEL AND POWER, AND CLAIMS OF BUYER’S CUSTOMERS.
7. PATENTS: Subject to the limitations contained in Section 6, Seller shall
defend any suits brought against Buyer based on a claim that use of the Goods
manufactured by Seller constitutes an infringement of a v alid patent of the
United States, and shall pay any damages awarded therein against Buyer,
provided that Buyer: promptly notifies Seller in writing of the filing of such suit or
the threat thereof; permits Seller to control completely the defense or compromise of such claim of infringement; and provides all reasonable assistance and
cooperation requested by Seller for the defense of such suit. In the event that
only the Goods manufactured by Seller are held to be infringing in such suit and
their use is enjoined, Seller shall, at its sole option and expense, provide a
commercially reasonable alternative, including, but not limited to, procuring for
Buyer the right to continue using the Goods, replacing them with a noninfringing product or modifying them so they become non-infringing. Buyer
agrees that Seller shall not be liable for infringement, and that Buyer shall fully
indemnify Seller therefore, if infringement is based upon the use of Goods in
connection with goods not manufactured by Seller or in a manner f or which the
Goods were not designed by the Seller or if the Goods were not designed by
the Seller or if the Goods were designed by the Buyer or were modified by or for
the Buyer in a manner to cause them to become infringing.
8. TAXES: Any tax or governmental charge payable by the Seller because of
the manufacture, sale or delivery of the Goods, or provision of Services, may at
Seller's option be added t o the price herein specified. The foregoing shall not
apply to taxes based upon Seller’s net income.
13. GENERAL PROVISIONS: (a) Buyer shall not assign its rights or obligations
under the Agreement without Seller's prior written consent; (b) there are no
understandings, agreements or representations, ex press or implied, not
specified in the Agreement; (c) no action, regardless of form, arising out of
transactions under the Agreement, may be brought by either party more than
two years af ter the cause of action has accrued; (d) any modification of these
terms and conditions must be set forth in a written i nstrument signed by a duly
authorized representative of Seller; (e) the Agreement is f ormed and shall be
construed, performed and enforced under the laws of the St ate of Missouri
(however, Buyer and Seller agree that the proper venue for all actions arising
under the Agreement shall be only in the State where t he G oods involved in
such actions were manufactured; (f) The 1980 United Nations Convention on
Contracts for the International Sale of Goods does not apply to this Agreement;
(g) If any provision of the Agreement is i nvalid under any statute or rule of law,
such provision, to that extent only, shall be deemed to be omitted without
affecting the validity of the remainder of the Agreement; (h) Seller specifically
objects to the application of any Federal Acquisition Regulation (“FAR”) or other
governmental procurement provision or clause to the Agreement; (i) UNLESS
OTHERWISE SPECIFICALLY PROVIDED IN SELLER’S QUOTATION,
GOODS AND SERVICES HEREUNDER ARE NOT INTENDED FOR USE IN
ANY NUCLEAR OR NUCLEAR RELATED APPLICATIONS. Buyer (i) accepts
Goods and Services in accordance with the restriction set forth in the immediately preceding sentence, (ii) agrees to communicate such restriction in writing
to any and all subsequent purchasers or users and (iii) agrees to defend,
indemnify and hold harmless Seller from any and all claims, losses, liabilities,
suits, judgments and damages, including incidental and consequential damages, arising from use of Goods and Services in any nuclear or nuclear related
applications, whether the cause of action be based in tort, contract or otherwise, including allegations that the Seller's liability is based on negligence or
strict liability; (j) The rights, remedies and protections afforded t o Seller under
this Agreement, including but not limited to indemnification of Seller, limitation
of remedy and liability and limited warranty shall extend t o Seller and to its
affiliates, subsidiaries, or related companies performing or supplying work,
services, or products under this Agreement or any agreement into which it is
incorporated by reference; and (k) Seller does not agree to: (i) indemnify Buyer;
or (ii) name Buyer as an additional insured.
0518
II 2GD
Ex d llC T* Gb; Ex tb lllC T*C Db
Ambient temperatures as low as –40°C up to 150°C available for
certain products.
(Reference Certificate for specific marking)
Baseefa 08ATEX0360X
IECEx BAS 08.0122X
TM
CL I DIV 1 &2 GROUPS A-D, CL II DIV 1&2 GROUPS E-G
- Warning-Explosion Hazard- Substitution of components may
impair suitability for Class 1, Division 2.
- Warning-Explosion Hazard - Do not disconnect equipment
unless power has been switched off or the area is known to be
non-hazardous.
Contact Forms LEADS
4 -SPDT COM Black
Form C N/O Blue
N/C Red
GND Green
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