Installation; Precautions - dosatron D 20 S Manuel D'utilisation

PRECAUTIONS

1 - GENERAL REMARKS
- When connecting a Dosatron either
to the public water supply or to its
own water source, you must respect
the regulations in force concerning
protection of the source i.e. backflow
prevention, etc.
- When connecting the Dosatron to the
water supply, ensure that the water flows
in the direction of the arrows on the unit.
- In a case where the water installation is
higher than the Dosatron itself, there is
a possible risk of water and concentrate
flowing back through the Dosatron. In this
case, installing a non-return valve
downstream is recommended.
- It is recommended that you should place
an anti-siphon valve on the downstream
side of the dosing pump in installations in
which there is a risk of siphoning.
- Do not install the Dosatron just above
an acid container, (risk of acid fumes
attacking the Dosatron) and protect it
from possible contact with corrosive
products.
- Protect the Dosatron from freezing
temperatures by draining it and store it
away from sources of excessive heat.
- Do not install the Dosatron on the
suction side of the supply pump (risk of
siphoning).
- During any intervention the operator
must stay in front of the Dosatron and
wear protective eyewear and gloves.

Installation

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DosatRoN INteRNatIoNaL / 35
- IMPoRtaNt ! Use no tool or
metallic utensils.
- It is the responsibility of the owner/
operator to replace the injection seals
annually to ensure precise injection.
- the setting of the Dosatron's
dosing rate is the sole responsibility
of the user. the user has to respect
the recommendations given by the
manufacturer of the chemical product.
- It is the responsibility of the owner/
operator to check that the flow and
pressure of the installation do not exceed
the Dosatron characteristics.
- adjustmentmust be made when there
is no pressure in the Dosatron. turn off
the water supply and allow the pressure
to drop to zero.
- It is the responsibility of the owner/
operator of the Dosatron, to determine
the correct amount of solution and
injection ratio to obtain the desired result.
- an air inlet, an impurity or a chemical
attack on seal can interrupt the dosing
function. It is recommended to periodically
check that the solution is being correctly
drawn up into the Dosatron.
- Change the suction tube as soon as it
seems damaged by the chemical.
- Relieve the pressure after use (advised).
- Rinsing of the Dosatron is required :
. when changing chemicals,
. before handling the Dosatron, to
avoidany contact with the chemical.