Using For The First Time; Maintenance; Recommendations; How To Drain The Dosatron - dosatron DI 1500 Manuel D'utilisation

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 injec-
tion rate (see § ADJUSTING THE INJECTION RATE).
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.
ON
© DOSATRON INTERNATIONAL / 40

RECOMMENDATIONS

1 - When using soluble products to be
made up into solutions, we recom-
mend the periodic dismantling of the
entire dosing part (see : § CLEANING
AND REFITTING THE SUCTION
VALVE, § CHANGING SEALS IN THE
INJECTION ASSEMBLY).
Fig. 6
Thoroughly rinsing all the elements
of the dosing part with water and
re-assembling them after having
previously lubricated the seal (Fig.
7) with a silicone lubricant, in the
case of difficulty in re-fitting.
2 - Before putting the DOSATRON
into operation after a non-use
period, remove the motor piston
and soak it into lukewarm water
< 40° C [104° F] overnight. This
helps to dissolve any deposits which
may have dried onto the piston
motor.
HOW TO DRAIN THE DOSATRON (in case of freezing temperature)
- Turn off the water supply and let the pressure drop to zero.
- Remove the injection assembly, see § CHANGING THE MOTOR PISTON.
- Remove the bell and the motor piston.
- Disconnect the water inlet and outlet fittings.
OFF
- Remove the lower pump body from the mounting bracket and empty any
remaining water.
- The DOSATRON can now be reassembled, having first cleaned the seal
(Fig.10-N next page).

Maintenance

O-ring
© DOSATRON INTERNATIONAL / 41
Fig. 7