ATTENTION!
Note that the ATE servomotor can only be actuated when the main drive motor of the dosing pump is run-
ning. This means that the ATE servomotor must be locked electrically. Otherwise, the adjusting eccentric will
suffer excessive wear, or be destroyed.
7.2 Installation location
The installation location of the dosing pump must be easily accessible by operating and service personnel.
ATTENTION!
Ambient temperatures above 40 °C are not permitted. Radiant heat from apparatus and heat exchangers
must be shielded so that heat from the dosing pump can be dissipated sufficiently. Avoid exposure to direct
sunlight. If the dosing pump is installed outside, provide a roof to protect it from the effects of weather.
Install the pump so that the suction and discharge valves are in vertical position. To ensure stability, the
dosing pump must be screwed onto an appropriate surface. The system piping must not exert any force on
the connections and valves of the dosing pump. To avoid dosing errors at the end of the process, the dosing
pump must be locked electrically and hydraulically.
7.3 Drain pipe
ATTENTION!
Released gases can destroy the dosing pump gear.
Drainage or leakage from the separating chamber must be allowed to flow
downward to the collecting pan. The drain pipe must never lead directly back to the
medium through the tank cover, otherwise released gases may get into the pump
gear. The drain pipe should only lead downward to a gas-free collecting tank, or
downward to a collecting funnel, leaving a sufficient gap from the end of the pipe.
Leakage can then be returned through the funnel and through the tank cover. This
makes it easier to detect any leakages at the gap to the collecting funnel.
ATTENTION!
If a leakage monitor is installed in an area with a potentially explosive atmosphere,
the electrical connection must be intrinsically safe. The drive motor must be electri-
cally interlocked to prevent additional medium escaping if a leak occurs.
7.4 Electrical connection of the pump
The electrical connection of the dosing pump must be made according to the local rules and regulations and
may only be carried out by qualified technical personnel. Cable type and cross-section of the supply lines
must be chosen according to the motor data. The cable passage to the motor terminal box must be made
professionally. We recommend using gland connections with strain-relief clamp. The required protection
class must be ensured by professional-standard installation of the electrical connections.
For external switch-off of the dosing pump, see paragraph 8.2.
ATTENTION!
Dosing pumps with explosion-proof motors must be installed and commissioned by specialists qualified
to work with equipment intended for use in potentially explosive atmospheres. The user is responsible for
ensuring that explosion-proof motors are connected correctly. Both the motor and dosing pump must be
grounded to prevent electrostatic discharges.
DANGER!
Fire hazard. Shock wave: parts may fly off and cause fatal injury. MEMDOS DX must never be used in areas
with a potentially explosive atmosphere. The electrical connection of the dosing pump must be made ac-
cording to the local rules and regulations and may only be carried out by qualified technical personnel.
NOTICE!
The dosing pump must be plugged into a grounded power outlet. The 230 V AC version of the MEMDOS DX
is connected by a safety plug. The 115 V AC version is equipped with a UL/CSA plug.
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| Operation & Maintenance Instructions | Installation
Summary of Contents for MEMDOS E
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