Grundfos DME 2 Manuale utente

GRUNDFOS

PRODUCT GUIDE

DME and DMS

Digital Dosing

Dm123.book Page 1 Tuesday, February 8, 2005 8:24 AM

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Contents

General data

Performance range, DME 3

Performance range, DMS 3

Digital Dosing 4

Type key 5

Codes 5

Functions

Overview of functions 6

Capacity range 7

Functions

Capacity control, DME 8

Capacity control, DMS 9

Control panel 10

Menu 12

Operating modes 13

Dosing monitoring 17

Control panel lock 18

Wiring diagram, DME 2 to 48 and DMS-A (AR) 19

Wiring diagram, DME (60 to 940) 20

Construction

Sectional drawing, DME (2 to 48) 22

Material specification 22

Sectional drawing, DME (60 to 940) 23

Material specification 23

Sectional drawing, DMS 24

Material specification 24

Performance curves

DME, DMS, 60 Hz 25

Dimensions

Front-fitted control panel DME 2 to 48, DMS 28

Side-fitted control panel DME 2 to 48, DMS 28

DME (60 to 940) 29

Technical data

DME (2 to 48) 30

DME (60 to 940) 31

DMS 32

Pump selection

DME 2 to 12 - standard range 33

DME 19 to 48 - standard range 34

DME 60 to 150 - standard range 35

DME 375 to 940 - standard range 36

DMS 2 to 4 - standard range 37

DMS 8 to 12 - standard range 38

Non-standard options 39

Pumped liquids

List of pumped liquids 40

Accessories

Dm123.book Page 2 Tuesday, February 8, 2005 8:24 AM

General data DME

Performance range, DME

Performance range, DMS

TM02 9943 4604

1 2.5 7.5 12 18.5 48 60 150 376 940

Q [l/h]

[bar]

11 2 3 4 5 6 7 8 1010 20 30 40 50 60 80 100100 200

Q [US GPH]

120

160

200

240

[psi]

DME

DME 2-18

DME 8-10

DME

DME 48-3

DME 60-10 DME 375-10

DME 150-4 DME 940-4

DME

12-6 19-6

TM02 9944 4604

1 2 3 4 5 6 7 8 9 10 11 12 13

Q [l/h]

[bar]

0.5 1.0 1.5 2.0 2.5 3.0

Q [US GPH]

100

120

140

160

[psi]

DMS

DMS 2-11

DMS 4-7

DMS 12-3

DMS 8-5

Dm123.book Page 3 Tuesday, February 8, 2005 8:24 AM

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

General data DME and DMS

Type key Codes

Example DME 2 - 18 - A - PP / E / C - F - 2 1 RR B

Type

range

Maximum capacity

[l/h]

Maximum pressure

[bar]

Control variant

Dosing head material

Gasket material

Valve ball material

Control panel position

Supply voltage

Valves

Connection suction/

discharge

Power plug type

Example A - PP / E / C - 2 - 1 R R B

Control variant

AG A + Genibus

AR A + alarm relay

AP A + Profibus

BBasic

DOnlyon/off

Dosing head material

PP Polypropylene

PV PVDF

SS Stainless steel

Gasket material

EEPDM

VFKM

Valve ball material

C Ceramic

SS 316 SS

GGlass

Y Hastelloy C

Control panel position

F Front-fitted

S Side-fitted

X No control panel

Supply voltage

1 1 x 230 V, 50 Hz

2 1 x 120 V, 60 Hz

3 1 x 100-240 V, 50-60 Hz

6 1 x 110 V, 50 Hz

8 1 x 100 V, 50/60 Hz

9 1 x 200 V, 50/60 Hz

Valves

1 Standard valve

2 Spring-loaded valve

Connection suction/discharge

1Tubing 6/9 mm

Tubing 4/6 mm

supplied with the pump

2Tubing 6/9 mm

Tubing 6/12 + 9/12 mm

supplied with the pump

3 Tubing 4/6 mm

4 Tubing 6/9 mm

5 Tubing 6/12 mm

6 Tubing 9/12 mm

T Tubing 0.17"/0.25"

R Tubing 0.25"/0.375"

S Tubing 0.375"/0.5"

A Threaded Rp 1/4

B Threaded Rp 3/8

V Threaded NPT 1/4"

Y Threaded NPT 3/8"

E Cementing d.10 mm

F Cementing d.12 mm

Q Tubing 19/27 + 25/34

W Tubing 32/41 + 38/48

A1 Threaded Rp 3/4"

A2 Threaded Rp 1 1/4"

A3 Threaded NPT 3/4”

A4 Threaded NPT 1 1/4”

Power plug

F EU (Schuko)

B USA, Canada (120 V)

GUK

I Australia

E Switzerland

J Japan

Dm123.book Page 5 Tuesday, February 8, 2005 8:24 AM

Functions DME and DMS

Overview of functions

DME DMS

2 to 48 60 to 940 AR 60 to 940 B variant A variant B variant D

TM01 8941 0900

TM02 8337 4903

TM02 8338 4903

TM01 8941 0900

TM01 8943 0900

TM02 8973 1304

Capacity control, see page 8

Internal stroke frequency

control zzzzz

Internal stroke speed control zzz

Control panel, see page 10

Capacity setting in liters,

milliliters or US gallons zzzzz

Display with background light

and soft-touch buttons zzzzz

Easy set-up menu with

language options zzzzz

On/off button zzzzz

Maximum capacity button

(priming) zzzzz

Green indicator light for

operating indication zzzzz

Red indicator light for

fault indication zzzzz

Control panel lock zzzzz

Side-fitted as an option zzzz

Operating modes, see page 13

Manual control zzzzz

Pulse control zz z

Analog 0/4-20 mA control zz z

Timer-based batch control zz

Pulse-based batch control zz

Functions, see page 17

Dosing monitoring zz z

Dual-level control zz z

Calibration of pump to actual

installation zzzzz

Anti-cavitation

(reduced suction speed) zzz

Capacity limitation zzz

Counters for strokes, operating

hours and power on/off zzzzz

Fieldbus communication

(variants AP and AG) zz

Overload protection zz

Error message in display zz

Leakage sensor z

Dosing signal output z

Power supply, page 16

Switch-mode power supply zzz

Inputs/outputs, see page 19

Input for pulse control zz z

Input for analog 0/4-20 mA

control zz z

Input for dual-level control zz z

Input for external start/stop zz z

Alarm relay output (variant AR) zz z

Dosing output z

Input for external on/off switch zz z

Dm123.book Page 6 Tuesday, February 8, 2005 8:24 AM

Functions DME and DMS

Capacity range

TM02 9945 4604

The maximum capacity is available at any counter pressure within the pump's

specified range if it has been calibrated to the actual installation.

1 2.5 4 7.5 1212 18.5 48 60 150 376 940

Q [l/h]

[bar]

11 2 3 4 5 6 7 8 1010 20 30 40 50 60 80 100100 200

Q [US GPH]

120

160

200

240

[psi]

DMS, DME

DME 2-18

DME 8-10

DME

DME 48-3

DME 60-10 DME 375-10

DME 150-4 DME 940-4

DME

12-6 19-6

DMS 2-11

DMS

4-7

DMS

8-5 DMS

12-3

Dm123.book Page 7 Tuesday, February 8, 2005 8:24 AM

DME

Functions

Capacity control, DME

The electronically controlled variable-speed motor of

the DME pumps provides optimum control of the stroke

speed. As shown in the figure below, the duration of

each suction stroke is constant while the duration of

each discharge stroke varies according to the capacity

set, resulting in optimum discharge flow in any oper-

ating situation.

The advantages are as follows:

• The pump is always operating at full stroke length,

irrespective of the capacity set, for optimum accu-

racy, priming and suction.

• A capacity range of 1:1000 (DME 2 to 48) for each

pump size.

• A capacity range of 1:800 (DME 60 to 940) for each

pump size.

• Even and constant dosing ensuring an optimum

mixing ratio at the injection point.

• Significant reduction of pressure surges, preventing

mechanical stress on diaphragm, tubes, connec-

tions and other dosing parts exposed to leakage

and wear.

• The installation is less affected by long suction and

discharge lines.

• Easier dosing of highly viscous and gas-containing

liquids.

The optimum dosing control shown below takes place

in any operating mode.

TM01 8944 0900

100%

50%

10%

Discharge

duration

Suction

Capacity

setting

Dm123.book Page 8 Tuesday, February 8, 2005 8:24 AM

Functions DMS

Capacity control, DMS

The electronically controlled synchronous motor of the

DMS offers similar advantages of the DME pumps. As

shown in the figure below, the suction and discharge

stroke speeds are constant while the stroke frequency

varies according to the capacity set.

The sinusoidal movement of the diaphragm offers the

following advantages:

• The pump is always operating at full stroke length,

irrespective of the capacity set, for optimum accu-

racy, priming and suction.

• A capacity range of 1:100 for each pump size.

• Reduction of pressure surges, preventing mechani-

cal stress on diaphragm, tubes, connections and

other dosing parts exposed to leakage and wear.

• The installation is less affected by long suction and

discharge lines.

• Easier dosing of highly viscous and gas-containing

liquids.

TM01 8945 0900

100%

50%

10%

Discharge

duration

Suction

Capacity

setting

Dm123.book Page 9 Tuesday, February 8, 2005 8:24 AM

Control panel

Control panel fitted to the front.

Control panel fitted to the side (not DMS-B).

Priming button

The pump control panel incorporates a button.

Press this button if the maximum capacity is required

over a short period, e.g. during start-up. When the

button is released, the pump automatically returns to

the previous operating mode.

When the buttons and are pressed simultane-

ously, the pump can be set to run for a specific number

of seconds at maximum capacity. The remaining

numbers of seconds will appear in the display. This

feature is useful when flushing the pump. The

maximum value is 300 seconds.

Press to stop the pump before the set time has

passed.

Indicator lights and alarm output

(DME 2 to 48, DMS)

The green and red indicator lights on the pump indicate

operation or fault.

In control variant AR, the pump can activate an external

alarm signal by means of a built-in alarm relay. The

alarm signal is activated by means of an internal poten-

tial-free contact.

The functions of the indicator lights and the built-in

alarm relay appear from the table below.

TM01 8946 1202TM01 8941 0900TM01 8949 0900

ml/h

100%

LCD Display

Priming button

Navigation/

settings

Menu/

Navigation/

settings

Green

indicator light

Red

indicator light

On/off button

settings

100%

Condition Green

LED Red LED Display Alarm

output1

Pump running On Off Normal

indication

Pump paused Flashing Off Normal

indication

Pump fault Off On EEPROM

Supply failure Off Off Off

Pump running, low

chemical level2On On Normal

indication

Empty tank2Off On Normal

indication

Analog signal

< 2 mA Off On Normal

indication

The pump is not dosing

enough according to the

signal from the dosing

monitor3

On On Normal

indication

More pulses than capacity On On Normal

indication

Overheated Off On MAX

TEMP

1Control variant AR, only.

2Requires connection to level sensors.

3Requires dosing monitor function activated and a dosing

monitor device connected to the pump.

132

NC NO C

132

NC NO C

123

NC NO C

132

NC NO C

123

NC NO C

123

NC NO C

123

NC NO C

123

NC NO C

123

NC NO C

123

NC NO C

Functions

DME and DMS

Dm123.book Page 10 Tuesday, February 8, 2005 8:24 AM

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