Understanding the Dosatron regulation process
If you work with fertigation, livestock farming, water treatment or industrial hygiene, you know that the Dosatron proportional doser is one of the most practical and precise pieces of equipment on the market. Because it works only with water pressure — without the need for electricity — it guarantees the exact application of pesticides, fertilizers or chemical products to the network.
However, to ensure adequate nutrition for the crop or correct medication for the herd, knowing how to regulate the Dosatron dosage accurately is essential. In this complete guide, you will see the adjustment step by step, the proportion conversion table, how to calculate the mother solution and the main maintenance precautions.
Dosatron Dosage Table: Percentage (%) x Proportion
The adjustment rate on the proportional doser body is indicated in percentage and proportion.
Use the table below as a reference for your application:
| Percentage (%) | Proportion | Practical Proportion (Product: Water) | Common Application |
| 0,2% | 1:500 | 2 ml of product for every 1 liter of water | Water treatment / Concentrated products |
| 0,5% | 1:200 | 5 ml of product for every 1 liter of water | Light supplementation / Sanitization |
| 1% | 1:100 | 10 ml of product for every 1 liter of water | Standard fertigation / Medicines |
| 2% | 1:50 | 20 ml of product for every 1 liter of water | Intensive nutrition / Disinfection |
| 5% | 1:20 | 50 ml of product for every 1 liter of water | High concentration applications |
Step by Step: How to Regulate Dosatron Dosage
Before starting any adjustments to the equipment, close the water flow in the piping and relieve the system pressure.
Unlock the Lock Nut (Lock Ring)
At the bottom of the Dosatron dosing rod, unscrew the manual lock nut by turning it counterclockwise to unlock the graduated scale.
Adjust the Dosage Selector Ring
Turn the adjusting nut along the graduated ruler:
To increase the dosage: Turn the ring downwards (towards higher percentage values).
To reduce the dosage: Turn the ring upwards (towards lower percentage values).
Align with Reading Line
Position the upper edge of the nut exactly on the line corresponding to the desired percentage or proportion on the device scale.
Lock the Security Nut
Manually tighten the lock nut all the way to prevent vibration caused by the passage of water from altering the adjustment during operation.
How to Calculate the Quantity of Mother Solution for Fertigation
Write here the coThe adjustment on the Dosatron rod determines the volume that will be sucked from the reservoir in relation to the volume of water that passes through the network. To prepare the concentrated solution reservoir (stock solution), use the formula:
Practical Example:
If you need to prepare 1,000 liters of final syrup and your doser is set to 1% ($1:100$):
In this condition, place 10 liters of concentrated product in the suction reservoir. The Dosatron will dose them proportionally throughout the 1,000 liters of water that pass through the pipes.
Tips to Ensure Accuracy and Avoid Failures
Install an Inlet Filter: Sand and suspended particles wear out the internal seals of the injector piston. The installation of a 120 mesh (130 microns) disc filter in the water inlet is mandatory to maintain the guarantee and accuracy of the doser. Respect the Flow and Pressure Range: Each Dosatron model operates within a minimum and maximum water flow range (example: $10text{ l/h}$ to $3,000text{ l/h}$). If the flow rate is below the minimum, the hydraulic motor does not activate the dosing piston. Caution with Viscous Products: Dense or poorly diluted powder mixtures can make suction difficult. Pre-dilute the product before inserting the suction hose into the reservoir. Make Periodic Checks: To test whether the dosage is accurate, place the suction hose in a graduated cylinder with clean water and check whether the aspirated volume matches the adjusted proportion after the end of the irrigation cycle. Frequently Asked Questions about Dosatron Adjustment (FAQ) Write the editorial content here with depth and clarity…
It is worth cross-referencing the recommendations in this text with public reference sources on how to regulate dosatron dosage.
Conclusion: Decide on precision when regulating pumps.
Making a conscious choice when regulating your systems not only improves your productive efficiency but also minimizes unnecessary risks in day-to-day operations.
Frequently Asked Questions about how to regulate dosatron dosage
How to convert percentage (%) to proportion on Dosatron?: what changes in how to regulate dosatron dosage
Divide $100$ by the percentage value. For example: $100 / 2% = 50$, which results in the ratio $1:50$. For the reverse, divide $100$ by the proportion number: $100 / 100 = 1%$.
Does Dosatron work without electrical power?
Yes. The equipment is moved exclusively by the pressure of the water that passes through its interior, activating the hydraulic motor that produces proportional suction of the product.
Why did Dosatron stop sucking the product?
The most common causes are: water flow below the model's minimum limit, lack of seal on the suction hose (air inlet), clogged inlet filter or wear on the dosing rod gaskets/seals.
