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Putting the DOSATRON
into order
USING FOR THE FIRST TIME
- Partially open the water inlet valve.
- Press the bleed button on the top of the DOSATRON
(Fig. 6).
- When a constant flow of water is seen coming from around
the bleed button (no more «spitting» of air), release the
button.
- Open the water inlet valve slowly, the DOSATRON is
self-priming.
- Operate the DOSATRON until the product to be
injected is drawn up into the doser body (the product is
visible through the plastic tube).
- The DOSATRON makes a characteristic "click-clack"
noise when working.
NOTE: The time required to prime the suction tube
depends on the water flow-rate, the ratio setting and
the length of the suction tube. To bleed the air from the suction
tube and accelerate the priming, set the injection rate at maximum.
Once the DOSATRON is primed, adjust to the required injection rate
(see § ADJUSTING THE INJECTION RATE).
USE
The device is designed to operate with fluids the temperature of which must
not exceed 40°C* (engine fluid, additive, engine fluid/additive mixture). In
the event of installation subject to operating at temperatures less than 5°C,
protect the installation from frost (see precautions instructions). The dosers
are designed for use up to 6 bars. The installation must be protected against
any overpressure risk. The installation must also be sized to avoid any
oscillating hydraulic phenomenon (water hammer). If necessary an anti-water
hammer device should be fitted.
*Certification: see codification paragraph.
©
DOSATRON INTERNATIONAL S.A.S / 25
ADJUSTING THE INJECTION RATE (with pressure off)
IMPORTANT ! Use no tools.
Adjustment must be made when there is no pressure in the DOSATRON.
- Turn off the water supply and allow the pressure to drop to zero.
- Unscrew the blocking ring (Fig. 7).
- Screw or unscrew the adjusting nut in order to line up the 2 peaks of the
eyelet with the desired ratio on the scale (Fig. 8).
- Tighten the blocking ring (Fig. 9).
Fig. 7
Fig. 6
DOSAGE PRINCIPLE
Principle : Setting at 1% ⇒ 1/100 = 1 part of concentrate for 100 parts of water.
BY-PASS OPTION
The DOSATRON may be fitted in its upper part with the function by-pass
(optional equipment) :
- By-pass in ON, the DOSATRON works and the concentrate is drawn up.
- By-pass in OFF, the DOSATRON is stopped and does not draw up the product.
Fig. 8
©
DOSATRON INTERNATIONAL S.A.S / 26
Fig. 9
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