MEMDOS E-DX

Catalogue

Drawing Dimensions

Instruction Manual

General
The MEMDOS E / DX combines the properties of the MEMDOS series working reliably for many years with the latest requirements in metering technology.

Due to an improved flexibility and the further development of individual components, it can be integrated even more efficiently in metering processes. Heads and diaphragms are the same as
for the existing pumps so that the continuity of spare parts keeping and service is ensured.

Two models of the MEMDOS are available, each with or without microprocessor control. The smaller version can be used for capacities from 0...4 to 0...160 l/h and the larger version for capacities from 0...160 to 0...380 l/h. Pressures are admissible
between 4 and 10 bar, depending on the size. If no control is required for constant metering, the motor is connected directly to the terminal box. In this case, MEMDOS E pumps are used.
Three-phase and a.c. motors are available. To change the metering capacity, either the stroke length can be adjusted mechanically or the speed of the three-phase motor can be controlled by means of a separate frequency converter. The microprocessor-based MEMDOS DX is used if the pump is to be integrated in controls or automatic control systems. The intelligence of the MEMDOS DX is derived from the well-proved series of MAGDOS DE/DX solenoid metering pumps.

It allows the adaption to a large number of different control signals and system monitoring equipment. It
controls the chemical supply in two ways, for example: tank level control with alarm signal and low level indication. The signals required for external activation of the pump can be simple voltage-free closing contacts from water meters or controllers or analog 0(4)...20 mA signals.

Depending on the version, the MEMDOS DX can be adjusted continuously between 0 and 142
strokes/min. for internal control. A single stroke follows each contact. In addition, the stroke frequency
can be changed by pulse division or multiplication.

Metering head
MEMDOS pumps can be equipped with a PVC, PP or stainless steel head. Other materials are available
upon request. The diaphragms are made of chemically and mechanically resistant materials. EPDM with a protective PTFE coat (Teflon) and a textile reinforcement are vulcanized onto a large-surface insertion part. Suction and discharge valve are fitted with two valve balls each for double sealing.

MEMDOS E-DX PUMP MODEL