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What are the technical characteristics of the DOSATRON D40MZ2?
The DOSATRON D40MZ2 has the following technical characteristics:
Operating flow: 2.2 to 40 US gpm [500 l/h min. to 9 m3/h max.]
Max. operating temperature: 104 degrees F [40 degrees C]
Operating pressure: 4.3 to 116 psi [0.3 to 8 bars]
Dosing adjustable from the exterior: Ratio 1/500 to 1/50, Percentage 0.2 to 2%
Concentrated product injection flow: 0.56 to 101.45 US Fl. oz/min [1 to 180 l/h]
Connections (NPT/BSP male gas fittings): 1 1/2 inch [diameter 40×49 mm]
Hydraulic motor capacity (every two clicks of the piston): approx. 0.449 US Gallons [1.7 l]
How do I put the DOSATRON D40MZ2 into service for the first time?
To put the DOSATRON D40MZ2 into service for the first time, follow these steps:
1. Partially open the water inlet.
2. Press the bleed button on the top cap.
3. When a constant flow of water is seen coming from around the bleed button, release the button.
4. Slowly open the DOSATRON D40MZ2 by-pass valves and close the main valve.
5. Slowly open the fast priming valve situated downstream of the DOSATRON D40MZ2.
6. Operate the DOSATRON D40MZ2 until the product to be dosed rises in the dosing part, then close the fast priming valve. Note that the DOSATRON D40MZ2 makes a characteristic click-clack noise when working.
How do I adjust the dosing rate of the DOSATRON D40MZ2?
Dosing adjustment for the DOSATRON D40MZ2 must be carried out while the unit is unpressurized. Follow these steps:
1. Turn off the water inlet and allow the pressure to drop to zero.
2. Unscrew the dosing locking nut.
3. Screw or unscrew the dosing adjustment sleeve so that the two display eyelet dots are facing the desired dosing marker.
4. Retighten the dosing locking nut.
What is the maintenance schedule for the DOSATRON D40MZ2?
Annual maintenance is recommended to optimize the life of your DOSATRON D40MZ2. It is required to replace the dosing part seals and the product suction hose annually.
How do I troubleshoot if the DOSATRON D40MZ2 does not start or stops?
If the DOSATRON D40MZ2 does not start or stops, check the following causes and solutions:
Cause: Motor piston blocked. Solution: Restart the motor piston by hand.
Cause: Presence of air in the DOSATRON D40MZ2. Solution: Bleed air by purging.
Cause: Overflow. Solution: Reduce flow and restart, or check the motor valve seals.
Cause: Motor piston is broken. Solution: Return the unit to your distributor.
How do I troubleshoot if there is no suction of product in the DOSATRON D40MZ2?
If there is no suction of product in the DOSATRON D40MZ2, check the following potential causes and solutions:
Cause: The motor piston has stopped working. Solution: Follow the troubleshooting steps for the motor piston.
Cause: Air tightness problem in the suction hose. Solution: Check the suction hose and the tightening of its nuts.
Cause: Suction hose obstructed or strainer blocked. Solution: Clean or replace them.
Cause: Suction valve seal worn, wrongly fitted, or clogged. Solution: Clean it or replace it.
Cause: Plunger seal wrongly fitted, clogged, or swollen. Solution: Clean it or replace it.
Cause: Dosing pump body scratched. Solution: Replace it.
What should I do if the DOSATRON D40MZ2 exhibits under-dosing?
If the DOSATRON D40MZ2 exhibits under-dosing, check the following:
Airtightness problem: Check the tightness of the dosing part nuts and check the condition of the suction hose.
Suction valve seal worn or dirty: Clean it or replace it.
Overflow (cavitation): Reduce flow.
Plunger seal worn: Replace it.
Dosing pump body scratched: Replace it.
How do I connect the suction hose on the DOSATRON D40MZ2?
The DOSATRON D40MZ2 is delivered with a suction hose that must be fitted with the strainer and ballast. The maximum suction height is 4 metres [13 ft]. To connect the hose:
1. Unscrew the nut at the bottom of the dosing part.
2. Thread the suction hose into the nut.
3. Push the hose into the barbed fitting as far as it will go and screw the nut by hand.
4. Assemble the strainer on the other end of the hose using the same method.
5. Immerse the strainer into the solution to be dosed.
What are the recommendations for installation of the DOSATRON D40MZ2?
Installation recommendations for the DOSATRON D40MZ2 include:
The DOSATRON D40MZ2 should be assembled in by-pass. It is recommended to install an upstream filter to protect the unit from impurities, especially if using water from a well or surface water. The DOSATRON D40MZ2 should not be installed above a container of acid or aggressive product, and the strainer should be placed about 4 inches [10 cm] from the bottom of the solution container to prevent the aspiration of insoluble particles. Ensure the solution level is not above the water inlet on the DOSATRON D40MZ2 to prevent siphoning.
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