dosatron D8R Owner's Manual
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dosatron D8R Owner's Manual

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D8R
3
8 m
/h 0.2% to 2% [40 GPM - 1:500 - 1:50]
OWNER'S MANUAL

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Summary of Contents for dosatron D8R

  • Page 1 /h 0.2% to 2% [40 GPM - 1:500 - 1:50] OWNER’S MANUAL...
  • Page 3 BEFORE PUTTING THE DOSATRON INTO OPERATION. Important ! The serial number of your DOSATRON is stamped on the bell housing. Please record this number in the space below and refer to it when you call your distributor for information, parts, and service.

  • Page 4: Table Of Contents

    SUMMARY CHAPTER 1 PAGE 5 INSTALLATION CHAPTER 2 PAGE 11 PUTTING THE DOSATRON INTO ORDER CHAPTER 3 PAGE 15 PRECAUTIONS CHAPTER 4 PAGE 17 MAINTENANCE Page 18 CLEANING THE WATER FILTER Page 20 HOW TO DRAIN THE DOSATRON Page 21...
  • Page 5 - Hydraulic motor capacity : About 1.7 l [0.45 US Gallons] for every 2 clicks of the piston - Self-priming : 4 meters NOTE : THE DOSATRON IS NOT PRESET, see chapter ADJUSTING THE INJECTION RATE UNIT SIZE Diameter : 18.4 cm [7 1/4"] Total height of the DOSATRON : 58 cm [22 7/8"]...
  • Page 6 Precise, simple and reliable Installed directly in the water supply line, the DOSATRON operates using water pressure as the power source. water activates DOSATRON, which takes up required percentage concentrate. Inside DOSATRON, the concentrate is mixed with the water. The water pressure forces the solution downstream.
  • Page 7 ACCESSORIES MAINTENANCE ADDITIONAL OPTIONS AVAILABLE Call your authorised distributor or the manufacturer. DOSATRON...

  • Page 8: Installation

    DOSATRON) and protect it, with a lid, from possible contact with corrosive products. - Do not install the DOSATRON on the suction side of the supply pump (risk of siphoning). - The DOSATRON should be protected from frost and from sources of excessive heat.
  • Page 9 - Remove the plastic caps (Fig. 1-B) which block the inlet and outlet of your DOSATRON before connecting to the water supply. - Make sure the watertight seals at the inlet and outlet of the DOSATRON are correctly positioned : First position the <O>...
  • Page 10 (Fig. 2-C) and avoid scraping off the adhesive, then tighten the nut. NOTA : Wait for one hour before putting into operation. The (nut and) ferrule made of polyacetal (Fig. 2-C) will not adhere to the PVC glue and (they) can therefore be dismantled easily at a later date. DOSATRON...
  • Page 11 Ø 40 x 49 mm [1"1/2]. Make sure the water is flowing according to the direction arrow on the pump body. The DOSATRON is delivered with a suction tube (cut it to the needed length) enabling its use with a large capacity concentrate container.
  • Page 12 INSTALLATION HINTS The DOSATRON can be connected to the main water line directly (Ex. 1) or on a by-pass (Ex. 2), recommended. If your flow rate is above the operating limits of the DOSATRON, see EXCESSIVE FLOW. To prolong the working life of the...
  • Page 13 DOSATRON...

  • Page 14: Putting The Dosatron Into Order

    - Place the by-pass lever in the ON position (Fig. 5-L). - Open the water inlet valve slowly, the DOSATRON is self-priming. - Operate the DOSATRON until the product to be dosed is drawn up into the doser body (the product is visible through the plastic tube).
  • Page 15 The operating medium must have a minimum pressure of 0.8 bar [12 PSI] in order to operate the by-pass. - By-pass on OFF (Fig. 6-L), the DOSATRON is stopped and does not draw up the product. - By-pass on ON (Fig. 7-L), the DOSATRON works and the concentrate is drawn up.
  • Page 16 Admission of the by-pass operating medium By-pass function activated : Dosing function stopped 3 > Outlet closed Operating of the DOSATRON : - Closing of the solenoid valve. Power supply interrupted : 2 to 3 > Outlet open : Escaping of the by-pass operating medium Activating of the dosing function 1 >...
  • Page 17 - You must comply with the local water authority's requirements. - To put into operation, unscrew the nut (Fig. 9-E), remove the solid metal disc (Fig. 9-P) and replace it by the washer (Fig. 9-C) supplied with the DOSATRON. - Screw the nut (Fig. 9-E).

  • Page 18: Precautions

    CHAPTER 3 PRECAUTIONS 1 - IMPORTANT GENERAL INSTRUCTIONS - During any intervention the operator must stay in front of the DOSATRON and wear protective eyewear and gloves. - It is the responsibility of the owner/operator to replace the injection seals annually to ensure precise injection.
  • Page 19 - The DOSATRON should be protected from frost and from sources of excessive heat. - Do not install the DOSATRON on the suction side of the supply pump (risk of siphoning). 4 - MAINTENANCE - Rinse the injection parts after using the DOSATRON. To do this, insert suction tube into container of clean water and inject about a 1/4 liter (1/15 U.S.

  • Page 20: Maintenance

    Before putting the DOSATRON into operation after a non-use period, remove the motor piston and soak it into lukewarm water < 40° C overnight. This helps to dissolve any deposits which may have dried onto the motor piston.

  • Page 21: Cleaning The Water Filter

    CLEANING THE WATER FILTER 50 mesh - 350 microns Frequency : Once per month depending on use. Fig. 11 Fig. 12 DOSATRON...
  • Page 22 TO REMOVE THE FILTER - Close the valve upstream of the DOSATRON and allow the pressure to drop to zero. Before removing the filter, please follow the dismantling instructions on pages 25 to 27. - Remove the dosing part. - Unscrew the bell-housing by hand and remove it (Fig. 11).

  • Page 23: How To Drain The Dosatron

    - Disconnect the water inlet and outlet fittings. - Remove the lower pump body from the mounting bracket and empty any remaining water. - The DOSATRON can now be reassembled, after having cleaned the seal (Fig. 12-N) (page 18). DOSATRON...

  • Page 24: Fitting The Suction Tube

    FITTING THE SUCTION TUBE If the DOSATRON has already been used, please imperatively refer to CHAPTER 3 : PRECAUTIONS. - Unscrew the dip tube retainer (Fig. 13-E) at the bottom of the injection assembly and thread it onto the dip tube.

  • Page 25: Adjusting The Injection

    - Tighten the retaining ring (Fig. 15-B). REMINDER : The injected quantity of product is proportional to the quantity of water entering the DOSATRON. 1% ⇒ 1/100, 100 volumes of water + 1 volume of injected product. DOSATRON...

  • Page 26: International Conversions

    20 000 Principle : Setting at 1% ⇒ 1/100 = 1 part of concentrate for 100 parts of water. ⇒ 2/100 = 2 parts of concentrate for 100 parts of water. Ex. : Setting at 2 Ratio ⇒ 1/50. DOSATRON...

  • Page 27: Changing Seals In The Injection Assembly

    IMPORTANT ! Use no tool or metallic utensils ADVICE : Before dismantling any part of the injection assembly it is advisable to operate the DOSATRON, injecting clean water so as to rinse through the injection system. In this way, risks of contact with concentrated solutions in the injection assembly are minimized.
  • Page 28 - Pull downwards to remove the suction valve assembly. - Rinse copiously the different parts with clean water, re-assemble them in the order shown (Fig.18) and ensure that the spring is in good working condition. - Re-assemble in the reverse order to the above by hand. DOSATRON...
  • Page 29 - Turn off the water supply and allow the pressure to drop to zero. - Take off the suction tube of product (Fig. 19-T). - Unscrew the retaining ring (Fig. 20-B). - Pull downwards to remove the dosing part (Fig. 20-D). Fig. 19 Fig. 20 DOSATRON...
  • Page 30 - Change and reassemble in the reverse order to the above. - Refit the bell-housing (take care not to damage its seal) and tighten by hand. - Refit the dosing part. Please refer imperatively to § CHANGING THE DOSING SEALS. Fig. 21 Fig. 22 DOSATRON...
  • Page 31 - Unscrew the retaining suction valve (Fig. 23-E) taking care not to lose the components of the valve, then change the <O> ring (Fig. 24-T) and the valve seal (Fig. 24-C). - Re-assemble in the reverse order to the above. DOSATRON...
  • Page 32 NOTE : The dosing scale (Fig. 23-L) must be straight in front. - Screw the retaining ring (Fig. 23-R) until it is blocked. The adjustment is done by means of the adjusting nut (Fig. 23-B), please refer to § ADJUSTING THE INJECTION RATE. DOSATRON...
  • Page 33 DOSATRON...

  • Page 34: Troubleshooting

    CHAPTER 5 TROUBLESHOOTING SYMPTOM CAUSE SOLUTION Motor piston DOSATRON does not Piston stalled. Reset piston, by hand. start or stop The by-pass is either Place the by-pass lever in the on OFF position or ON position (see page 11). half opened.
  • Page 35 1. Check the tightness between nut and suction hose. 2. Check suction tube. Dirty or worn check Clean or replace check valve valve seal. seal. Maximum flow Reduce the flow. exceeded (cavitation). Worn plunger seal. Replace it. Worn doser body. Replace it. DOSATRON...
  • Page 36 THE MANUFACTURER DECLINES ALL RESPONSIBILITY IF THE DOSATRON IS USED IN CONDITIONS THAT DO NOT CORRESPOND TO THE OPERATING INSTRUCTIONS AS INDICATED IN THIS MANUAL. DOSATRON...
  • Page 37 DOSATRON. The seals and “o” rings are not covered under warranty, nor is damage to the DOSATRON caused by water impurities such as sand. A filter (p.e.
  • Page 38 REFERENCE DESIGNATION of your DOSATRON D8R REF. : ……………………………… Serial # : ………………………… EXAMPLE ► Type of DOSATRON BP : Integrated by-pass V : Viscous Products (200-400 cSt) Dosing Seals : AF = Advised for alkaline concentrates PH 7-14 VF = Advised for acid concentrates PH 1-7...
  • Page 39 PARTS DIAGRAM DOSATRON...
  • Page 40 PARTS DIAGRAM DOSATRON...
  • Page 41 KNOW YOUR FLOW..…………………..…A SIMPLE METHOD THE DOSATRON IS COMPOSED OF : A driving volumetric hydraulic motor piston connected to : A dosing piston. The speed of the motor is proportional to the flow of water passing through the system. The greater the flow the faster it goes.
  • Page 42 NOTE Date DOSATRON...
  • Page 43 Rue Pascal - B.P. 6 - 33370 TRESSES (BORDEAUX) - FRANCE Tel. 33 (0)5 57 97 11 11 Fax. 33 (0)5 57 97 11 29 / 33 (0)5 57 97 10 85 e.mail : info@dosatron.com - http://www.dosatron.com NORTH & CENTRAL AMERICA : DOSATRON INTERNATIONAL INC.
  • Page 45 This document does not form a contractual engagement on the part of DOSATRON INTERNATIONAL and is for information only. The company DOSATRON INTERNATIONAL reserves the right to alter product specification or appearance without prior notice.

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