TABLE OF CONTENTS Introduction …………………………………………………….4 Page Section I – System Description ………………………………. 6 Page Components Components - Optional Function Section II – Application ……………………………………………8 Page Section III – Installation …………………………………………...10 Page Anode Installation & Parts List Reference Electrode Installation & Parts Lists Controller Installation ®...
INTRODUCTION You now have the finest system for the elimination of corrosion ® on under water metal parts. CAPAC , the electrical system which stops the corrosive attack on metal is designed and built with the boat owner in mind. The system is permanent and fully automatic with nothing to be used up or wear out.
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SPECIAL INSTRUCTIONS TO OWNER Check to see that the Capastic epoxy plastic shield has been applied to metal and wood hulls around each anode as described on page 9. This shield must be properly installed fro proper operation of ® the CAPAC system and to prevent damage to the hull.
Section I System Description Components The 90W 12D system consists of four (4) major components, the ® controller, the anode(s), the reference electrode and the CAPAC Monitor. The controller consists of an enclosure housing transistor control circuitry used to establish and maintain the protection of the under water metal. These models of controllers are available to protect the following metals: 37810-1 Potential control setting set by factory to protect STEEL.
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flow through the water to the underwater metal through the ground wire and back to the negative battery terminal. Wherever current enters a submerged metal surface, the corrosion is eliminated. Once the corrosion is stopped, the metal or hull is said to be “polarized”. The reference electrode is insulated from the hull and the anode, and does not receive any anode current.
Section II Application The 90W12D system is designed to deliver an automatically controlled anode current of up to 7.5 amperes to the anode(s) from a 12-volt DC source with the negative terminal grounded to the hull or fittings. ® NOTE: UNDER NO CONDITION SHOULD CAPAC BE OPERATED FROM OTHER THAN A NEGATIVELY GROUNDED SOURCE.
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If the system is installed on wood or fiberglass hulls, all of the submerged metal appendages must be bonded to the common ground in order to obtain protection. When a variety of metals are used on the underwater hull, the CAPAC system will be set in the factory to protect whichever metal has the highest protected reading and no adjustment should be necessary.
Section III INSTALLATION ANODE INSTALLATION & PARTS LIST Parts List Anode Assembly Complete – 37792 Item # (Fig. 3.1) Quantity Part Number Description 37786 Anode Assembly 37795-9-1 Flat Washer 37344-13 Lock Washer 37791-25-1 Hex Nut 5-10 37798 Encased splice 10 feet 36282 Butyl Bead 1 lb.
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disc In order to function properly, the exposed metallic must net be painted. The black plastic holder may be painted as shown in Figure 3.3. LOCATION (See drawing SK220B – Figure 3.2) Single Anode Installations For single anode installations it is recommended that the anode be mounted as close as possible to the keel line, approximately ¼...
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Installation Instructions (Refer to Figure 3.1) NOTE: The anode assembly is identified by its black wire. It must be handled carefully so as not to abrade or scuff the platinized surface nor damage the threaded stem. Installation is accomplished as follow: Cable Needed: #14 gauge THW single conductor –...
stripped end of 9 inch anode cable through items 5, 6 and 8 of clear plastic encased splice. NOTE – either end of encased splice can be used since both ends are identical. Insert the stripped end of #14 gauge, single ®...
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encased splice provided. The reference electrode is supplied with 10 inches of white cable and must be installed while the boat is out of the water. Before commencing the reference electrode installation, read all the instructions and check the parts holder may be painted as shown in Figure 3.3. Location (See drawing SD 220B Figure 3.2) On a wood hull, the reference electrode should be located as close as practical to a bonded metallic appendage.
° the brass hub. Then place reference electrode in a warm (at least 70 place to keep bead soft until installed. 3. Insert the warm reference electrode hub through the hole in the hull and press it in place. 4. On the inside of the hull, wrap three turns of butyl bead around the gland and against the hull and place items 2, 3, and 4 over the treaded stem of the reference electrode.
The side of the instrument control panel at the helm, Figure 3, 8, commonly serves as a convenient location for the monitor. This location is reasonably sheltered from excessive spray and is convenient for observation. The unit, however, should be located at least three feet from the magnetic compass if one is onboard.
the fitting. When ground plates are included in this common bond, the current drain on the battery will be higher. It may be desirable to disconnect the ground plate from the common bonding and reduce the battery drain. Radio frequency grounding for any electronic equipment is accomplished by connecting a capacitor (0.5 microfarads at 200 volts) between the common bonding and the ground plate.
Painting ® The CAPAC system is compatible with any paint system; however, certain steps can be taken to insure optimum results. The current demand for protection can be substantially reduced by painting the shaft and propeller. This procedure will reduce the initial current demand and will reduce the time required for polarization.
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TYPICAL ASSEMBLY OF REFERENCE ELECTRODE ON METAL OR WOODEN HULL Figure 3.1 Page 20 of 38 102808_CAPAC_MANUAL_MODEL_90W12D_SYSTEM.doc...
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FIGURE 3.2 Page 21 of 38 102808_CAPAC_MANUAL_MODEL_90W12D_SYSTEM.doc...
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THIS DRAWING PERTAINS TO ANODE AND REFERENCE ELECTRODE FIGURE 3.3 Page 22 of 38 102808_CAPAC_MANUAL_MODEL_90W12D_SYSTEM.doc...
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Figure 3.4 Controller & figure 3.5 90W12D SYSTEM Page 23 of 38 102808_CAPAC_MANUAL_MODEL_90W12D_SYSTEM.doc...
Section IV Operation ® To achieve optimum results with CAPAC , the equipment must operate continuously while the boat is in the water. Therefore, to prevent accidental de- energizing of the system, no on-off switch is provided on the controller. As soon as the hull is afloat, the reference electrode creates a meter ®...
Section V Service General Theory The Model 90W12D system is composed of four major components: The ® reference cell, the controller, the anode(s) and the CAPAC Monitor. These units perform the following functions: A. The reference electrode produces a voltage, which is related to the amount of protection received by the hull.
Determining the Difficulty ® The following procedure will help to localize difficulties in a CAPAC system. a) Check for 12 V DC voltage at controller input terminals. b) Check reference electrode (Par. 1 or 2 below). c) Check anode (Par. 1 or 2 below). ®...
5. To check the operation of the controller, disconnect the reference cell and anode leads and make the connections as shown in Figure 5.2A. The 1.5V dry cell should be connected with a 1000 ohnm 2 watt potentiometer or variable resistor with dial knob. With this hook-up any desired potential can be set into the reference input by adjusting the potentiometer until the desired ®...
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CAUTION: NEVER use steel wool or any abrasive cleaner on an anode. If a reference electrode is connected as an anode, it will be destroyed within a few days. If it is connected as an anode for several minutes, it will subsequently develop an inaccurate voltage.
Controller The 90W 12 D controller functions to provide the correct amount of output current to the anode so that the desired cathodic polarization potential is maintained on the metallic surfaces exposed under water. The controller operates on an input voltage of 12V DC, (i.e. batteries ore rectified or rectified and filtered direct current source) and consists of one integrated circuit, seven transistors and associated circuitry configured to provide the following functions:...
Controller Specifications Operating voltage 12V DC Automatic Control Range 380 Millivolts to 1.3 Volts Current Output 0 to 7.5 Amperes ±9.929V from control point Control sensitivity Type of Control Smoothly Varying Weight 3.5 lb.s Active Components 1-CA3130 Integrated Circuit 1-2N4037 Transistors 3-2N1711 Transistors 1-2N3054 Transistor 1-2N3771 Transistor...
Trouble Shooting Some probable causes of failure and their symptoms are: Steel Hulls: 1) Symptoms: CAPAC Monitor Meter reads higher than the correct value – above 0.75 for bronze – above 0.95 for steel Anode and reference electrode cables may be reversed or shorted together. Remember that the reference electrode has a white lead wire attached to the back of it while the anode has a black lead wire attached to the back of it.
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The controller must then be repaired. Do not leave anode connected to battery. 3) Symptoms: The meter reads zero. Check: Reference electrode for open or shorted wiring, as described in Service, Paragraph 1 and 2. ® CAPAC meter, as described in Service, paragraph 3. Bronze Fittings: The Servicing procedure for bronze fittings is the same as for steel hulls except that ®...
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WARRANTY ® Evoqua Water Technologies warrants each new CAPAC SYSTEM or part thereof manufactured by it, to be free from defects in workmanship or material, under normal use of service, for a period of one (1) year from the date of installation of such system or eighteen (18) months from date of shipment, which ever occurs first.
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