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4. Transport and storage
Transport the DSS system carefully and only at
temperatures above 41 °F (5 °C).
There is a risk of breakage.
The DSS system is tested for tightness in the factory.
Some residual water may still be present in the fittings and
pipes.
•
Check the DSS system for transportation damage or missing
parts.
•
Store the DSS system in a sheltered place at temperatures
between 41 and 113 °F (5 and 45 °C).
5. Installation of DSS
WARNING
Toxic material
Death or serious personal injury
‐
Make sure that the room where the DSS system is
installed has sufficient ventilation.
‐
Protect the DSS system against unauthorized access.
•
During installation, refer to plant engineering drawings,
construction drawings, engineering documentation, system
general arrangement, P&ID and electrical drawings, if included
in the scope of delivery. All DSS system pipes are supported
within DSS. Make sure to adequately support all pipes outside
DSS, including inlet, outlet, drain or vent pipes, to the site floor,
wall or ceiling. Do not use the DSS pipes for support.
•
Make sure there is sufficient clearance around the DSS system
for regular maintenance to be carried out. Provide sufficient
lighting.
•
Allow provisions to drain the system pipes for maintenance and
repair.
•
Depending on the vapor pressure of the dosing medium, you
may need to mount the inlet line with a continuous upward slope
from the supply tank to reduce gas locking, especially in volatile
media.
Keep the minimum diameter of the inlet and outlet lines.
Too small diameters may cause damage to the DSS
system and the dosing pump.
Depending on the viscosity and density of the dosing
medium, the number of valves and fittings, and the length
of the pipes, you may have to increase the pipe diameter.
The diameter and length of the outlet and inlet pipe or
tube must be dimensioned in such a way that pressure
peaks do not exceed the pressure limit during the dosing
stroke and the minimum pressure does not fall below the
vapor pressure of the dosing medium during the suction
stroke.
5.1 Installing DSS
1. Mount the DSS system to the wall if it is a wall-mounted system
or on the floor if it is a floor-mounted system.
2. Position DSS on an even, solid surface which is flat, hard,
vibration-free and leveled, that is, a concrete floor or foundation.
3. Install the on-site inlet, outlet and drain or vent pipes to the DSS
termination point for the system inlet, outlet and drain or vent
pipe. Make sure that the inlet conditions do not exceed the
maximum suction lift capability of the dosing pump as described
in the pump installation and operating instructions.
4. Check that O-rings are installed in all unions.
5. Check the tightness of all threaded connections.
10
Pipes, components and equipment connections may
become loose during transport or storage.
6. If required, install the pulsation dampers on DSS according to
the pulsation damper connection instructions supplied with the
DSS system.
The pulsation damper and/or calibration column may
have been removed from DSS to prevent damage
during transport.
7. If required, install the calibration column on the DSS.
8. Install an injection unit or a check valve at the injection point to
prevent back flow of process media into the DSS system.
5.2 Electrical connection
WARNING
Electric shock
Death or serious personal injury
‐
All electrical connections must be carried out by a
qualified electrician in accordance with local
regulations.
‐
All electrical connections must be carried out in
accordance with the wiring diagram.
Make sure that the system is suitable for the power supply
to which it is to be connected.
Read the manuals of all electrical components supplied
with the DSS system or supplied separately.
•
DSS systems installed outdoors must be sheltered to allow
trouble-free operation.
- Exceptions are DSS systems equipped with an IP65 outdoor
cabinet with integrated heating and/or cooling.
6. Startup
WARNING
Toxic material
Death or serious personal injury
‐
Some chemicals react with water, which can lead to
explosions. If your dosing medium can react with
water, flush the DSS system with a medium that
is compatible with both water and the dosing medium
before startup.
Before startup, flush all tanks and pipes.
An initial test can be made with water if the dosing
medium is compatible with water.
The DSS system is tested for tightness in the factory. Some
residual water may still be present in the fittings and pipes.
6.1 Starting up DSS
1. Retighten all threaded joints.
2. Check the tightness of the entire DSS system and all pipes.
3. Check the electrical wiring and the power supply.
4. For dosing pumps with three-phase motors, additionally check
the direction of rotation and the setting of the motor protection.
5. If installed in a suction lift application, install the inlet line with a
foot valve in the dosing tank.
Install the inlet line with a continuous upward slope towards the
dosing pump.
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