dosatron DIA 2F - Using for the First Time; By-Pass; Maintenance; Recommendations

©
DOSATRON INTERNATIONAL / 52
EN
© DOSATRON INTERNATIONAL / 51
Putting the DOSATRON
into order
USING FOR THE FIRST TIME
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).
- 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.
Fig. 6
Maintenance
RECOMMENDATIONS
1 - When using soluble products
to be made up into solutions,
we recommend the periodic
dismantling of the entire dosing
part (see : § CLEANING AND
REFITTING THE SUCTION
VALVE, § CHANGING SEALS IN
THE INJECTION ASSEMBLY).
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 plunger
assembly with seals and
soak it into lukewarm water
< 40° C [104° F] during some
minutes. This helps to dissolve
any deposits.
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.
- 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, having first cleaned
the seal.
Fig. 7
Joint
BY-PASS
The DOSATRON is fitted with the
function by-pass.
- 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.
OFF
ON