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General data
DMS
DME and DMS
Digital Dosing
Digital Dosing represents state-of-the-art technology.
This patented Grundfos solution sets new standards,
including new principles and methods.
Precise and easy setting
The operator can easily install and set the pump to
discharge exactly the quantity of dosing liquid required
in the application. Capacity is read on the digital display
in GPH, l/h, or ml/h, while icons are used to identify the
operation mode.
Unique technology
A unique drive and microprocessor control ensure that
dosing liquids are discharged precisely and with low
pulsation even when the pump is operating with high
viscosity or degassing liquids. Instead of the conven-
tional stroke length adjustment, the capacity of the
DME is regulated by automatic ajustment of the motor
speed during the discharge stroke and by fixed suction
stroke speed, ensuring optimal and uniform mixing. The
capacity of the DMS is regulated by automatic regula-
tion of the stroke frequency.
Fewer variants to cover all needs
The powerful variable speed motor, a turn-down ratio of
1:1000/1:800 and a complete control interface including
• full pulse control,
• pulse batch control,
• internal timer batch control,
• analog 0/4-20 mA control,
• level control and
• fieldbus communication module
ensure that nine DME pumps cover the range from
0.00066 to 248.3 gallons per hour, up to 261 psi. The
switch mode power supply ensures that the same pump
is working precisely, irrespective of the power supply
(100-240 V; 50-60 Hz).
The DMS version with synchronous motor and a turn-
down ratio of 1:100 (consisting of four pump sizes and
two control versions) cover the range from 0.0066 to
3.17 GPH. The DMS-A pumps have external pulse,
analog 4-20 mA and level control interface; the DMS-B
version is without external control interface. The DMS-
D is without control and user interface.
The DME and DMS dosing pumps feature diaphragm
dosing head with integrated vent valve, suction and
discharge ball valves.
The pumps are also fitted with a power cable and plug.
TM03 0815 0505
Dm123.book Page 4 Tuesday, February 8, 2005 8:24 AM
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