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All written and visual data contained in this document reflects the latest product information available at the time of publication. 

Graco reserves the right to make changes at any time without notice.

This manual contains English. MM 311200

Graco Headquarters: 

Minneapolis

International Offices: 

Belgium, China, Japan, Korea

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441

Copyright 2005, Graco Inc. is registered to I.S. EN ISO 9001

www.graco.com

Revised 7/2017

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in 
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty 
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by 
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written 
recommendations.

This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty 
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of 
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with 
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or 
maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of 
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned 
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs 
will be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE

Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy 
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or 
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT 
MANUFACTURED BY GRACO

. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to 

the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these 
warranties.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or 
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the 
negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, 
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la 
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite 
de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information

TO PLACE AN ORDER, 

contact your Graco distributor or call to identify the nearest distributor.

Phone: 

612-623-6921

 or Toll Free: 

1-800-328-0211

 Fax: 

612-378-3505

Summary of Contents for 234576

Page 1: ... use in explosive atmospheres Part No 234576 Leak Detection System 120 psi 0 8 MPa 8 bar Maximum Air Input Pressure Part No 24B290 Leak Detector Sensor Replacement Kit Important Safety Instructions Read all warnings and instructions in this manual Save these instructions See page 2 for Table of Contents TI6850A ...

Page 2: ...hnical Data in all equipment manuals For complete information about your material request MSDS from distributor or retailer Use fluids and solvents that are compatible with equipment wetted parts See Technical Data in all equipment manuals Read fluid and solvent manufacturer s warnings Check equipment daily Repair or replace worn or damaged parts immediately with genuine Graco replacement parts on...

Page 3: ...flashing When the sensor is immersed in a liquid compatible with the optical sensor the yellow LED will stop flashing Control Box The control box powers and monitors the sensors and sound the alarm when a leak is detected The control box powers and reads the sensors every second If the sensors detect liquid the control box will alarm and set it s fault relay Relay The relay has two sets of contact...

Page 4: ...Screw the sensors B into the pump Use thread sealant as needed See FIG 3 FIG 1 Leak Detection System TI6850A Control Box Sensors To replace a sensor order Part No 24B290 Leak Detector Sensor Replacement Kit The kit includes one sensor To install the kit first shut off power to the control box Follow steps 2 7 below and step 10 on page 6 FIG 2 Sensor and Cap B A FIG 3 Typical Installation TI6851A C...

Page 5: ...wires to the sensor terminals as shown in FIG 4 7 Plug the sensor terminals to the respective connec tors on the circuit board located on the inside of the cover See FIG 5 If installing Part No 24B290 Leak Detector Sensor Replacement Kit shut off power to the control box before opening the cover FIG 4 Sensor Wire Connections in Control Box TI13328A TI13329A TI13329A Black Red White Green Black Red...

Page 6: ... etc to the internal relay CRS if desired using J4 See FIG 5 C Common R is Reset which is connected to Common during normal operation NO S is Set which is connected to Common when an error is detected NC 10 Reinstall the cover D using the four screws C Grounding 1 Follow the instructions in your pump manual to ground the Graco diaphragm pump system and check its electrical grounding continuity 2 W...

Page 7: ...2 Verify operation of the Optical sensor Submerge each sensor separately in a non transparent fluid such as milk Verify that the alarm sounds the yellow LED on this sensor stops flashing the LED on the control box blinks three times per second the relay is set and performs the intended oper ation i e shuts down the pump 3 Verify operation of the Conductive sensor Sub merge each sensor separately i...

Page 8: ...trol box Inspect the sensor connection for proper contacts and connections If the problem persists replace the sensor s as required Light flashes 3 sec and alarm sounds 8 sec The reset button is stuck in the down position Remove any obstruction possibly depressing the reset button If no obstruction exists remove the cover and inspect the reset button for anything holding it in the down position Re...

Page 9: ...VAC 50 60 Hz Maximum power consumption 3 W Relay contact rating 230 VAC 60 W 62 5 VA Maximum sensor pressure 200 psi 1 4 MPa 14 bar Operating temperature range 0 104 F 18 40 C Maximum sensor line length 2 ft 6 m Type of liquids that can be detected water oil or any liquid compatible with polysulphone ...

Page 10: ...close any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole obligation and buyer s sole remedy for ...

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