Grundfos DME series Installation And Operating Instructions Manual
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GRUNDFOS INSTRUCTIONS
DME
Installation and operating instructions
Montage- und Betriebsanleitung
Notice d'installation et d'entretien
Istruzioni di installazione e funzionamento
Instrucciones de instalación y funcionamiento
Instruções de instalação e funcionamento
√‰ËÁ›Â˜ ÂÁηٿÛÙ·Û˘ Î·È ÏÂÈÙÔùÚÁ›·˜
Installatie- en bedieningsinstructies
Monterings- och driftsinstruktion
Asennus- ja käyttöohjeet
Monterings- og driftsinstruktion
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Table of Contents
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Summary of Contents for Grundfos DME series
- Page 1 GRUNDFOS INSTRUCTIONS Installation and operating instructions Montage- und Betriebsanleitung Notice d’installation et d’entretien Istruzioni di installazione e funzionamento Instrucciones de instalación y funcionamiento Instruções de instalação e funcionamento √‰ËÁ›Â˜ ÂÁηٿÛÙ·Û˘ Î·È ÏÂÈÙÔùÚÁ›·˜ Installatie- en bedieningsinstructies Monterings- och driftsinstruktion Asennus- ja käyttöohjeet...
- Page 2 Declaration of Conformity Konformitätserklärung We GRUNDFOS declare under our sole responsibility that the prod- Wir GRUNDFOS erklären in alleiniger Verantwortung, daß die Pro- ucts DME, to which this declaration relates, are in conformity with dukte DME, auf die sich diese Erklärung bezieht, mit den folgenden...
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Page 3: Table Of Contents
CONTENTS 1. General description Page The GRUNDFOS DME dosing pump is a self-priming diaphragm pump. General description Applications The pump consists of: Type key • a cabinet incorporating the drive unit and elec- Technical data tronics, Mechanical data • a dosing head with back plate, diaphragm,... -
Page 4: Type Key
1.2 Type key (Cannot be used for pump configuration.) Example: DME 2-18 A-PP/E/C-F-3 1 1E F Pump range DME .. Code Mains plug EU (Schuko) Maximum pressure [bar] USA, CAN Control variant Code Standard Standard + alarm relay Standard + Profibus Connection, Standard + GENIbus Code... -
Page 5: Technical Data
2. Technical data 2.1 Mechanical data DME 2 DME 8 DME 12 DME 19 DME 48 Maximum capacity without anti-cavitation * [l/h] 18.5 Maximum capacity with anti-cavitation * [l/h] 14.5 Maximum pressure [bar] Maximum stroke rate per minute [stroke/min.] Maximum suction lift during operation [m] Maximum suction lift when priming with wet valves [m] Maximum viscosity with spring-loaded valves * [mPas]... -
Page 6: Dimensions
2.4 Dimensions 3.3 Installation of pump See dimensions at the end of these instructions. • See also the installation example in section 3.4 . All dimensions are in mm. • Note: The dosing head may contain water from the factory test. If a liquid which must not come into contact with water is to be dosed, it is recom- 3. -
Page 7: Installation Example
Fig. 2 The DME pump can be installed in many different ways. The sketch below shows an example with side- fitted control panel. The tank is a GRUNDFOS chemical tank with a GRUNDFOS level control unit. 3.5 Electrical connection • The electrical connection of the pump should be carried out by qualified persons in accordance with local regulations. -
Page 8: Connection Overview
3.6 Connection overview Fig. 3 Alarm relay (control variant “AR” only) “NO” black “NC” blue “Com” brown Control cable, Level cable, see table below see table below Empty tank Low level Control input: Number / colour 1 / brown 2 / white 3 / blue 4 / black 5 / grey... -
Page 9: Functions
4. Functions 4.1 Control panel Fig. 4 LCD display, see section 4.7 ml/h Navigation/ Navigation/ settings, settings, see section 4.7 see section 4.7 Maximum capacity (priming), see section 4.3 Menu, 100% see section 4.7 On/off button, see section 4.7 Green indicator light, see section 4.5 indicator light,... -
Page 10: Start/Stop Of Pump
4.2 Start/stop of pump The functions of the indicator lights and the built-in alarm relay appear from the table below: The pump can be started/stopped in three different ways: Alarm Green Dis- Condition • Locally on the pump control panel. play output •... -
Page 11: Fieldbus Communication
4.6 Fieldbus communication The pump can be configured for fieldbus applica- tions. The following bus types are available: Control variant Bus type Profibus GENIbus Separate instructions are supplied with each bus type. -
Page 12: Menu
4.7 Menu All menu items are described in the following sec- tions. When appears at a menu item, it means The pump features a user-friendly menu which is ac- that this item is activated. By selecting “RETURN” tivated by pressing the button. -
Page 13: Operating Modes
4.8 Operating modes Fig. 7 Note: The displayed l and ml values are only reliable if the pump has been calibrated to the actual installa- tion, see section 6 . The pump can run in five different operating modes: • Manual •... - Page 14 Fig. 9 Value according to analog signal If 4-20 mA or 20-4 mA is selected and the signal falls below 2 mA, the pump will indicate a fault. This situa- tion occurs if the connection is interrupted, for in- stance if the wire is damaged. Change the analog mode as illustrated in fig.
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Page 15: Timer
4.12 Timer Fig. 12 The pump is dosing the set quantity in batches at the maximum capacity or the set maximum capacity, see section 4.15 . The time until the first dosing “NX” and the following sequences “IN” can be set in minutes, hours and days. -
Page 16: Batch
4.13 Batch Fig. 14 The pump is dosing the set quantity in batches at the maximum capacity or the set maximum capacity, see section 4.15 . The quantity is dosed every time the pump receives an external pulse. If the pump receives new pulses before the previous batch is performed, these pulses will be ignored. -
Page 17: Capacity Limitation
4.15 Capacity limitation Fig. 17 This function offers the possibility of reducing the maximum pump capacity (MAX CAP). It influences the functions in which the pump is normally operating at maximum capacity. Under normal operating conditions, the pump cannot operate at a capacity which is higher than the one stated in the display. -
Page 18: Resetting
4.17 Resetting Note: The calibration is also set back to the default setting. This means that a new calibration is required When “DEFAULT” is activated, the pump will return when the “DEFAULT” function has been used. to the factory settings. Fig. -
Page 19: Input Setup
Fig. 20 Operating display Operating display Operating display without changes 4.20 Input setup For the analog input, one of the following signal types can be selected: Fig. 21 shows all possible settings. • 4-20 mA (default), The level and stop inputs can be changed from NO •... -
Page 20: Measuring Units
4.21 Measuring units US measuring units: • In manual and analog modes, set the quantity to It is possible to select metric units (litre/millilitre) or be dosed in gallons per hour (gph). US units (gallons/millilitre). • In pulse mode, set the quantity to be dosed in Metric measuring units: ml/pulse. -
Page 21: Dosing Monitoring
4.22 Dosing monitoring A dosing monitor is available as an accessory. Sepa- rate instructions are supplied with the monitor. Fig. 23 Dosing stroke measured Monitor mounted on the suction side of the pump The dosing monitor is designed to monitor the dosing of liquids which may cause gas accumulation in the dosing head, thus stopping the dosing process even if the pump is still operating. -
Page 22: Control Panel Lock
4.23 Control panel lock If a wrong code is entered, “LOCKED” will appear in the display for 2 seconds, followed by “_ _ _ _”. A It is possible to lock the buttons on the control panel new code must be entered. If the entering of a code to prevent malfunction of the pump. -
Page 23: Start-Up
5. Start-up Step Action Connect the hoses/pipes: • Connect the suction and dosing tubes/pipes to the pump. • Connect a tube to the vent valve, if required, and lead the hose to the tank. Switch on the electricity supply: • The display is on. •... -
Page 24: Calibration
6. Calibration It is important that the pump is calibrated after instal- lation to ensure that the correct value (ml/h or l/h) appears in the display. The calibration can be carried out in three different ways: • Direct calibration (recommended). The dosed quantity of 100 strokes is measured di- rectly. -
Page 25: Direct Calibration
6.1 Direct calibration • that the pump is operating with the correct suction lift. Before calibration, make sure: To carry out a direct calibration, proceed as follows: • that the pump is installed with foot valve, injection valve, etc. in the existing system. •... -
Page 26: Indirect Calibration
To use the values, the following must be fulfilled: • The viscosity and density of the liquid to be dosed must not differ considerably from water at 20°C. • A GRUNDFOS installation kit or corresponding foot valve, injection valve and hose diameter must be used. -
Page 27: Check Calibration
7. Read and note the quantity in the chemical tank. fied as contaminated. 8. Calculate the dosed quantity in ml and the If GRUNDFOS is requested to service the pump, it number of dosing strokes performed during the must be ensured that the pump is free from sub- operating period. -
Page 28: Fault Finding Chart
9. Fault finding chart Fault Cause Remedy The dosing has Valves leaking or blocked. Check and clean valves. stopped or the output Valves incorrectly installed. Remove and fit valves. Check that the arrow is too low. on the valve casing is pointing in the liquid flow direction.
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