Able Planet 620DuN manuale d’uso

Watson-Marlow 620DuN and 620Du User Manual 1 W A TSON-MARLOW BREDEL MANUALS W at son-Marlow 620DuN / 620Du pump s m-620dun-du-gb-02 1 Declaration of conformity 3 2 Declaration of incorpor ation 3 3 Five-y ear warr anty 3 4 When you unpack your pump 4 5 Information for returning pumps 5 6 Peristaltic pumps - an o verview 5 7 Safety notes 6 8 Pump sp[...]

Watson-Marlow 620DuN and 620Du User Manual 2 22.13 Supply voltages 64 22.14 RS485 input 65 23 Automatic control wiring without the 620N module 66 23.1 Speed: analogue input 1 68 23.2 Scaling: analogue input 2 69 23.3 Speed: analogue output 70 23.4 T achometer frequency output 70 23.5 Run/stop input 71 23.6 Direction input 71 23.7 Auto / manual togg[...]

Watson-Marlow 620DuN and 620Du User Manual 3 1 Declaration of conformity This declaration was issued for W atson-Marlow 620DuN and 620Du pumps on September 19, 2005. When this pump unit is used as a stand-alone pump it complies with: Machinery Directive 98/37/EC, Low V oltage Directive 73/23/EC, EMC Directive 89/336/EC. This pump is ETL listed: ETL[...]

Watson-Marlow 620DuN and 620Du User Manual 4 Conditions of and specific exceptions to the above w arranty are: Conditions  Products must be returned by pre-arrangement, carriage-paid, to W atson- Marlow , or a Watson-Marlow appro ved service centre.  All repairs or modifications must have been made by W atson-Marlow Limited, or a W atson-Marl[...]

Watson-Marlow 620DuN and 620Du User Manual 5 up, voltage selection and fuse inspection and then re- affixed before the pump is operated.  The designated mains power lead for your pump  PC-readable CDROM containing these oper ating instructions  Quick Start manual Note: Some versions of this product will include components different from th[...]

Watson-Marlow 620DuN and 620Du User Manual 6 finger and sliding it along: fluid is expelled from one end of the tube while more is drawn in at the other . Animal digestive tracts function in a similar w ay . Suitable applications Peristaltic pumping is ideal for most fluids, including viscous, shear -sensitive, corro- sive and abrasiv e fluids, and[...]

Watson-Marlow 620DuN and 620Du User Manual 7 work. In the UK this person should also be familiar with the Health and Safety at W ork Act 1974. There are moving parts inside the pumphead. Before opening the tool- unlockable fixed guard (620R) or tool-unlockable track (620L), ensure that the following safety directions are followed.  Ensure that t[...]

Watson-Marlow 620DuN and 620Du User Manual 8 8 Pump specifications Labels fixed to the rear of the pump contain manufacturer and contact details, prod- uct reference number , serial number and model details. The same information is carried on the drive’ s backplate, accessible when the 620N module is removed. The picture below is how a 620Du look[...]

Watson-Marlow 620DuN and 620Du User Manual 9 Outputs A 0-10V , 4-20mA or 0-1478Hz output signal provides feedback of the pump speed. There are four relay status outputs which can be configured in software for a variety of pump par ameters. MemoDose Allows repeat dosing. Stores in memory a pulse count from the motor . This count is repeated each tim[...]

Watson-Marlow 620DuN and 620Du User Manual 10 Control range (turndown ratio) 0.1-265rpm (2650:1) Supply voltage/frequency Filtered 100-120V/200-240V 50/60Hz 1ph Maximum voltage fluctuation ±10% of nominal voltage. A well regulated electrical mains supply is required along with cable connections conforming to the best practice of noise immunity Ins[...]

Watson-Marlow 620DuN and 620Du User Manual 11 EC harmonised standards Safety of machinery—electrical equipment of machines: BS EN 60204-1 Safety requirements for electrical equipment for measurement, control and laboratory use: BS EN 61010-1 incorporating A2 Category 2, P ollution degree 2 Degrees of protection provided by enclosures (IP code): B[...]

Watson-Marlow 620DuN and 620Du User Manual 12 8.1 Pressure capability 0-4 bar higher pressure pumping This pump’ s default running speed is 165rpm. It can be run at any speed up to 265rpm. Please note, however:  The 620RE and 620RE4 rotor warranty is limited to 2 bar from 165rpm to 265rpm .  A warning is displayed when the user sets the spe[...]

Watson-Marlow 620DuN and 620Du User Manual 13 Drive only + 620R, 620RE + 620RE4 + 620L, 620LG IP31 16.5kg, 36lb 6oz 19.6kg, 43lb 3oz 20.1kg, 44lb 5oz 24.3kg, 53lb 9oz IP66 NEMA 4X 17.4kg, 38lb 6oz 20.5kg, 45lb 3oz 21.0kg, 46lb 5oz 25.2kg, 55lb 9oz Unit weights 8.2 Dimensions[...]

Watson-Marlow 620DuN and 620Du User Manual 14 9 Good pump installation practice 9.1 General recommendations Position A correctly engineered installation will promote long tube life. Site the pump on a flat, horizontal, rigid surface, free from excessive vibr ation, to ensure correct lubri- cation of the gearbox. Allow a flow of air around the pump [...]

Watson-Marlow 620DuN and 620Du User Manual 15 9.2 Do’s and do not’s Do not build a pump into a tight location without adequate airflow around the pump. Do ensure that when the 620N watertight module is fitted the seals are intact and properly located. Ensure that the holes for cable glands are properly sealed to main- tain the IP66 / NEMA 4X ra[...]

Watson-Marlow 620DuN and 620Du User Manual 16 The voltage selector is mounted in the switchplate at the rear of the pump, protected from water by the 620N module (620DuN). The module must be removed to allow access to the switchplate. See 22.1 620N module removal and replacement. Set the voltage selector to 115V for 100-120V 50/60Hz supplies or 230[...]

Watson-Marlow 620DuN and 620Du User Manual 17 Input line fusing : type T5A H 250V 20mm time-delayed cartridge fuse, located in a fuseholder in the centre of the switchplate at the rear of the pump. Power interruption : This pump has an auto-restart feature which, when active, will restore the pump to the operating state it was in when power was los[...]

Watson-Marlow 620DuN and 620Du User Manual 18  When the language is chosen this menu will not appear again and all menus will appear in the language you chose. (Language can be reset as described later . See 18.19 Language.)  The pump displays the W atson-Marlow start-up screen for four seconds, followed by the pump model identity screen for [...]

Watson-Marlow 620DuN and 620Du User Manual 19 13 Switching the pump on in subsequent power cycles (if not in auto-restart mode)  Switch on the power supply at the rear of the pump. The pump runs a power - on test to confirm proper functioning of the memory and hardware. If a fault is found, an error message is displayed. See 26.1 Error codes. ?[...]

Watson-Marlow 620DuN and 620Du User Manual 20 14 Manual operation 14.1 Keypad functions All settings and functions of the pump in manual mode are set and controlled by means of key -presses. Immediately after the start-up displa y sequence detailed above, the manual mode main screen will be display ed. The currently selected rota- tion direction is[...]

Watson-Marlow 620DuN and 620Du User Manual 21  AUTO (SHIFT, 9) : has no effect if the pump is running in auto mode. Stops the pump if it is running in Manual mode and displays a screen offering three choices: manual control, analogue control or network control. Use the UP and DOWN keys to make a choice. Press the ENTER k ey to confirm your decis[...]

Watson-Marlow 620DuN and 620Du User Manual 22 Keypress combinations cause the pump to function as follows: Note : A number of the controls listed below are shortcuts to commands which are also available through the Main menu. See 15 Main menu.  UP and 1 (DIRECTION) on power-up: toggles the keypad beep on and off .  START on power-up: switches[...]

Watson-Marlow 620DuN and 620Du User Manual 23 14.4 Keypad lock The keypad can be locked to prev ent changes to pump speed or other settings, and make it possible only to start or stop the pump. The padlock symbol shows on the display .  While the pump is running, hold down the START key for two seconds. The padlock symbol shows and only the STAR[...]

Watson-Marlow 620DuN and 620Du User Manual 24 14.7 Backlight T o turn the display backlight on:  Depress the STOP and UP keys together . T o turn the display backlight off:  Depress the STOP and DOWN keys together . See 18.17 Backlight. 14.8 Auto-restart This pump offers an auto-restart feature. When active on power loss, it will restore the [...]

Watson-Marlow 620DuN and 620Du User Manual 25 15 Main menu 15.1 Keypad functions in menu screens In addition to their functions in other operations, the following keys ha ve specific actions in menu screens:  STOP : In general, STOP functions as a “go back” k ey , taking the user up one menu level without making a change.  UP : The UP key[...]

Watson-Marlow 620DuN and 620Du User Manual 26 Pin out details Selecting Pin out details causes the pump to display an information screen and then its preset pin and voltage details under 19 headings: Analogue input 1, Analogue input 2, Analogue output, T acho output, Direction enable, Direction input, Run/Stop input, Leak input, Auto/Man toggle, Do[...]

Watson-Marlow 620DuN and 620Du User Manual 27 16 PIN-secure process protection The 620DuN and 620Du feature PIN-secure process protection. This allows the pump to be configured to suit the application, and for the setup to be protect- ed by two levels of PIN code. The main code gives access to Calibrate , Setup , Direction change and Keypad lock . [...]

Watson-Marlow 620DuN and 620Du User Manual 28 17 Head and tubing calibration The pump can display flowrate in a choice of units as well as speed in rev olutions per minute. It must first be calibrated. Pump calibration can be limited to users who correctly enter a three-digit security code. If a security code has been set, selecting Change from the[...]

Watson-Marlow 620DuN and 620Du User Manual 29 Head and tube  If Head and tube is selected, the pump displays a list of standard pumpheads that can be fitted to the pump.  Use the UP and DOWN keys to make a selection. Press ENTER to confirm. An example is shown here.  The pump displays tube sizes, as below . Tube  If Tube is selected or [...]

Watson-Marlow 620DuN and 620Du User Manual 30 Calibration dose  The pump offers to run a calibration dose. Use the UP and DOWN keys to choose Yes or No . Press ENTER to confirm. Examples are shown here.  If No is selected after a tube selection has been made (see T ube above), the pump briefly displays a confirmation screen showing current he[...]

 Measure the quantity of fluid dispensed. The pump displays its calculated dose, based on previous calibration data. Use the numeric keys to adjust this reading to match the measured volume. Press ENTER . The pump briefly displays the new head, tube and flow settings, and displays the main running screen. Example figures are shown here. Note : I[...]

Watson-Marlow 620DuN and 620Du User Manual 32 18.1 Trim DuN Du[...]

Watson-Marlow 620DuN and 620Du User Manual 33 When the pump is under remote control, it tracks an analogue signal from the user’ s remote control system to the i/p terminal of the Analogue 1 and Analogue 2 con- nectors at the rear of the pump within the ranges 4-20mA, 0-10V or 1-5V . The Trim setup sequence allows the user to customise the proces[...]

Watson-Marlow 620DuN and 620Du User Manual 34 Input 1 - speed allows the user to tell the pump which signal type he will apply to Analogue 1, or to choose the program option. If he selects Program from the sub- sequent menu, the user can choose his input type and tell the pump the speeds at which to operate on receiving a low or high process contro[...]

Watson-Marlow 620DuN and 620Du User Manual 35 Program  Select Program using the UP or DOWN keys and press ENTER to confirm.  The pump offers two choices: mA and V (0-10V). Use the UP or DOWN keys to make a selection and press ENTER to confirm y our decision.  The pump displays a screen allowing you to set the speed for low signal input (4m[...]

Watson-Marlow 620DuN and 620Du User Manual 36 the UP or DOWN keys to make a selection and press ENTER to confirm your decision.  The pump displays a screen inviting the user to enter the required speed proportion for low signal input (4mA or 0V) as a value from 0% to 100% Enter your v alue using the UP or DOWN keys and confirm by pressing ENTER [...]

Watson-Marlow 620DuN and 620Du User Manual 37 keys. Press ENTER to confirm your choice.  The pump displays a screen allowing you to choose the format of the manual mode main screen. Use the UP and DOWN keys to choose and press ENTER to confirm your decision.  If you choose Flowrate and you ha ve not calibrated the pump since switching it on, [...]

Watson-Marlow 620DuN and 620Du User Manual 38 18.5 Baud The pump can be set to communicate with control devices at a choice of baud rates.  In the first screen of the Setup menu select Baud using the UP and DOWN keys. Press ENTER to confirm your choice.  The pump displays a screen allowing you to change the pump’ s baud rate. Use the UP and[...]

Watson-Marlow 620DuN and 620Du User Manual 39 18.8 Flow units The pump can display its flow rate in metric (SI) or US (imperial) units of v olume or mass.  In the second screen of the Setup menu select Flow units using the UP and DOWN keys. Press ENTER to confirm your choice.  The pump displays a screen offering Metric or US . Use the UP and [...]

Watson-Marlow 620DuN and 620Du User Manual 40 18.9 Run time The pump cumulatively records hours of motor operation. The figure can be dis- played or reset to zero .  In the third screen of the Setup menu select Run time using the UP and DOWN keys. Press ENTER to confirm your choice.  The pump briefly displays the total hours its motor has ope[...]

Watson-Marlow 620DuN and 620Du User Manual 41 Leak detected When used with a leak detector , this output provides an alarm when the pump has been automatically switched off following tube failure. Head Provides an alarm when the pumphead guard is open. If it is running, the pump will stop. Outputs 1-4 are available as single-pole change-o ver relay[...]

Watson-Marlow 620DuN and 620Du User Manual 42  In the third screen of the Setup menu select Outputs using the UP and DOWN keys. Press ENTER to confirm your choice.  The pump displays a screen allowing you to configure each of the four outputs, or to exit this menu. Use the UP and DOWN keys to choose and press ENTER to confirm your decision. ?[...]

Watson-Marlow 620DuN and 620Du User Manual 43 ENTER to confirm. The pump briefly displays a confirmation screen and returns the user to the third screen of the Setup menu.  If Yes is chosen, the pump briefly displays a confirmation screen and returns the user to the third screen of the Setup menu. Example screens are shown here.  Note : The c[...]

Watson-Marlow 620DuN and 620Du User Manual 44 Alternatively ...  Stop the pump. T urn off the mains power switch at the rear of the pump.  Hold down the START key and turn on the mains power switch. The ! symbol shows on the display .  Start the pump. If the mains supply is interrupted the pump will automatically restart when the mains pow[...]

Watson-Marlow 620DuN and 620Du User Manual 45 and DOWN keys. Press ENTER to confirm your choice.  The pump displays a screen allowing the user to set the minimum speed of the pump equal to or higher than the minimum available. Use the numeric k eys to set the minimum allowed speed and press ENTER to confirm the figure.  The pump returns the u[...]

Watson-Marlow 620DuN and 620Du User Manual 46 vious setting.  If the setting displayed is correct, press ENTER . The pump redispla ys the fifth screen of the Setup menu.  If you wish to change the setting, use the UP and DOWN keys to enter the current date (two digits), month (three letters), year (four digits), hour , minute and second (all [...]

Watson-Marlow 620DuN and 620Du User Manual 47 18.19 Language The pump can be set to operate in sever al languages.  In the sixth screen of the Setup menu select Language using the UP and DOWN keys. Press ENTER to confirm your choice.  In the next screen, choose a language using the UP and DOWN keys. Press ENTER to confirm your choice. The pum[...]

Watson-Marlow 620DuN and 620Du User Manual 48 18.21 Beep The pump keypad can operate silently or indicate a positiv e key-press with a beep sound.  In the sixth screen of the Setup menu select Beep using the UP and DOWN keys. Press ENTER to confirm your choice.  In the next screen, use the UP and DOWN keys to choose On or Off . Press ENTER to[...]

Watson-Marlow 620DuN and 620Du User Manual 49 18.22 Security code Access to the pump’ s Setup and Calibration menus, direction control and keypad lock can be restricted to those who correctly enter a three-digit security code: the main code. A secondary user code can be set, which permits PIN access to calibration, direction and keypad lock, but [...]

Watson-Marlow 620DuN and 620Du User Manual 50 main code, the pump briefly displays a confirmation message and redisplays the sixth Setup screen. Access to the Setup and Configuration menus, direction control and keypad lock is now protected by the new security code.  If STOP is pressed during code entry , the pump returns the user to the sixth S[...]

Watson-Marlow 620DuN and 620Du User Manual 51 The Pin out details menu Make a selection using the UP or DOWN keys and press ENTER to confirm y our choice. The information on pin outs duplicates the details described in this instruction man- ual under Automatic control wiring. The screens available are all presented in a similar manner . For example[...]

Watson-Marlow 620DuN and 620Du User Manual 52 20 MemoDose Each time the pump is started by pressing START , it records the number of pump- head revolutions which occur until STOP is pressed. The number of revolutions is proportional to the volume of fluid which has been dispensed: the dose. The MemoDose facility allows the user to repeat-dose a pre[...]

Watson-Marlow 620DuN and 620Du User Manual 53 To repeat the dose  The pump has recorded the number of pumphead revolutions required to dis- pense the master dose. If the volume of fluid in the measuring vessel is the volume required, press START to repeat the dose.  If the volume of fluid in the measuring vessel differs from the volume requir[...]

Watson-Marlow 620DuN and 620Du User Manual 54 20.2 Footswitch operation and other remote inputs and outputs with MemoDose A footswitch can be used to trigger MemoDose dispensing as a hands-free alterna- tive to pressing START . T o operate MemoDose with a footswitch, briefly press the footswitch while the MemoDose percentage screen is displayed. Th[...]

Watson-Marlow 620DuN and 620Du User Manual 55 22 Automatic control wiring using the 620N module Interfacing the pump with other devices is by means of screw-terminal connectors within the 620N watertight module at the rear of the pump. Suitable cable must be passed into the module through one or more watertight cable glands and connect- ed appropri[...]

Watson-Marlow 620DuN and 620Du User Manual 56 To replace the 620N watertight module:  Check that the fuse in the fuseholder (ringed) does not need to be replaced. Check that the voltage selector switch is correctly set.  Check that the sealing strip is fully in its channel on the face of the module.  Attach the module’ s earth link wire.[...]

Watson-Marlow 620DuN and 620Du User Manual 57 For EMC protection, shielded control cable should be used. The shielding should be terminated to one of the pcb mounting screws or to the adjacent spade connection (where fitted). For impro ved EMC protection in extremely noisy environments, shielded cable may be used in conjunction with watertight EMC [...]

Watson-Marlow 620DuN and 620Du User Manual 58 the cable’ s conductors through the gland. However , to ensure a seal, cable with an undamaged sheath must be present within the gland when it is tightened.  T wist a suitable length of the cable screen. Loosen one of the pcb retaining screws and wind the shielding round it. Secure the screen by re[...]

Watson-Marlow 620DuN and 620Du User Manual 59 22.3 Speed: analogue input It is possible to control the speed of the pump remotely by one of these methods: a voltage analogue signal within the ranges 0-10V or 1-5V ; or a current analogue signal within the range 4-20mA; or a remote potentiometer using the 10V supply at J7. The analogue process signal[...]

Watson-Marlow 620DuN and 620Du User Manual 60 4-20mA circuit impedance: 250 Ω . For v oltage modes, a stable, reliable voltage source can be used with a DC voltmeter . Circuit impedance: 22k Ω . Inverting the response is set up in softw are. Do not invert the polarity of the termi- nals. A remote potentiometer with a nominal value of between 1k a[...]

Watson-Marlow 620DuN and 620Du User Manual 61 age in the Setup menu. Otherwise the reference voltage supply from the R em-pot connector will be overloaded and will not provide a full 5V or 10V . The speed of the pump as set by Analogue 1 is scaled in proportion to the signal from Analogue 2 according to the formula y=as, where a is the speed set by[...]

Watson-Marlow 620DuN and 620Du User Manual 62 22.7 Run/stop input Remote run/stop: connect a remote switch between the i/p terminal and the +5V terminal of the Run/stop i/p connector (J4). Alternatively a logic input may be applied to the i/p terminal, ground to the 0V terminal. High input stops the pump, low input runs the pump. With no connec- ti[...]

Watson-Marlow 620DuN and 620Du User Manual 63 22.9 Auto / manual toggle input Connect a remote switch between the +5V terminal and the i/p terminal of the Auto-man i/p connector (J1). Closed switch for automatic control; open switch for manual control. Alternatively a logic input may be applied to the i/p terminal of the Auto-man i/p connector , gr[...]

Watson-Marlow 620DuN and 620Du User Manual 64 22.12 Outputs 1, 2, 3, 4 Note : Rela y 1 (J14) is represented here. Relay 2, R elay 3 and Rela y 4 (J15, J16 and J17) function identically . Connect your output device to the c (common) terminal of your chosen relay connector and either the n/c terminal or the n/o terminal (normally closed or normally o[...]

Watson-Marlow 620DuN and 620Du User Manual 65 Note : All DC supplies are stabilised. 22.14 RS485 input Connect your network link to J10 using a screened twisted pair: A to A, B to B, screen to 0V . Ensure that the pump is configured to operate under Network control. More than one pump may be controlled with the same RS485 signal: con- nect all pump[...]

Watson-Marlow 620DuN and 620Du User Manual 66 23 Automatic control wiring without the 620N module Interfacing the pump with other devices is by means of three D-connectors at the rear of the pump. There are two 25-w ay D-connectors. The top one is male, the bottom one is female. Mating female and male connectors, screened for EMC com- patibility , [...]

Watson-Marlow 620DuN and 620Du User Manual 67 RS232 control RS232 network control is available via a 9-pin D-connector wired as below . RS232 is the mode which allows the pump to be controlled by computers and process controllers. It can control every function of the pump, and pass data back to the con- troller for closed loop operation. Up to 16 p[...]

Watson-Marlow 620DuN and 620Du User Manual 68 Note : The CTS connection to pin 8 is optional, for use when error conditions are required. 23.1 Speed: analogue input 1 It is possible to control the speed of the pump remotely by one of these methods: a voltage analogue signal within the ranges 0-10V or 1-5V ; or a current analogue signal within the r[...]

Watson-Marlow 620DuN and 620Du User Manual 69 4-20mA circuit impedance: 250 Ω . For v oltage modes, a stable, reliable voltage source can be used with a DC voltmeter . Circuit impedance: 22k Ω . Inverting the response is set up in softw are. Do not invert the polarity of the pins. A remote potentiometer with a nominal value of between 1k and 2k w[...]

Watson-Marlow 620DuN and 620Du User Manual 70 23.3 Speed: analogue output An analogue output signal is available as a 0V -10V signal on pin 2 of the lower D- connector . Ground to pin 15. The voltage is fixed and directly proportional to the pumphead rotation speed. 0V = zero speed; 10V = maximum speed. An analogue output signal is available as a 4[...]

Watson-Marlow 620DuN and 620Du User Manual 71 23.5 Run/stop input Remote run/stop: connect a remote switch between pins 7 and 19 of the lower D- connector . Alternatively a logic input may be applied to pin 7 of the lower D-connec- tor , ground to pin 18. High input stops the pump, low input runs the pump. With no connection or with the switch open[...]

Watson-Marlow 620DuN and 620Du User Manual 72 between pins 5 and 19 of the lower D-connector . Open switch for clockwise rotation, closed switch for counter-clockwise rotation. Alternatively a logic signal may be applied to pin 5 of the lower D-connector , ground to pin 17. Low input for clockwise rotation, high input for counter-clockwise rotation[...]

Watson-Marlow 620DuN and 620Du User Manual 73 23.9 Leak detection input Connect a remote leak -detection device between pins 2 and 18 of the upper D-con- nector . Closed circuit indicates a leak. Alternatively a logic input may be applied to pin 2 of the upper D-connector , ground to pin 15. High input indicates a leak. Connect a W atson-Marlow lea[...]

Watson-Marlow 620DuN and 620Du User Manual 74 23.10 Pump status outputs 23.10.1 Logic output 1 Output 1 is taken from pin 10 of the upper D-connector , depending on the logic state of the function assigned to Output 1. Alternatively , a load such as a relay coil may be connected to pin 10, ground to pin 17. Current will flow through the circuit dep[...]

Watson-Marlow 620DuN and 620Du User Manual 75 23.10.2 Logic output 2 Output 2 is taken from pin 11 of the upper D-connector , depending on the logic state of the function assigned to Output 2. Alternatively , a load such as a relay coil may be connected to pin 11, ground to pin 17. Current will flow through the circuit depending on the logic state [...]

Watson-Marlow 620DuN and 620Du User Manual 76 23.10.3 Logic output 3 Output 3 is taken from pin 13 of the upper D-connector , depending on the logic state of the function assigned to Output 3. Alternatively , a load such as a relay coil may be connected to pin 13, ground to pin 17. Current will flow through the circuit depending on the logic state [...]

Watson-Marlow 620DuN and 620Du User Manual 77 23.11 Supply voltages In the table below , “Max load” is the maximum total load on each supply irrespec- tive of the number of connections. Note : All DC supplies are stabilised except the +22.5V . DC Voltage Max load Lower D Upper D Typical use +5V 10mA 9, 19, 23 18, 19 V oltage supply for inputs u[...]

Watson-Marlow 620DuN and 620Du User Manual 78 24 Automatic control and operation Check that the pump is ready to run before selecting automatic operation. R emote control signals may start the pump without warning. How to get into auto operation  While the manual mode main screen is displayed, press AUTO (SHIFT, 9) , or apply a high signal (5-24[...]

Watson-Marlow 620DuN and 620Du User Manual 79 the pump rotates after receiving a low signal on Analogue 1 (4mA, 1V or 0V); the speed at which the pump rotates after receiving a high signal on Analogue 1 (20mA, 5V or 10V); the set speed (that is: the speed at which the pump is currently rotating according to the analogue speed signal and the analogu[...]

Watson-Marlow 620DuN and 620Du User Manual 80 25 Network control and operation Check that the pump is ready to run before selecting network operation. R emote control signals may start the pump without warning. How to get into network operation  While the manual mode main screen is displayed, press the AUTO (SHIFT, 9) key .  The pump offers t[...]

Watson-Marlow 620DuN and 620Du User Manual 81 How to get out of network operation  Pressing the MAN (SHIFT, 6) key sets the pump to manual operation and retains the set speed and run status from its previous operation in network mode. See 14 Manual operation. Emergency stop  In an emergency press the STOP key . The pump stops and displays an [...]

Watson-Marlow 620DuN and 620Du User Manual 82 Command Parameters Meaning nCA - Clear LCD display nCH - Home the cursor nDO xxxxxxxxxx<,yyyyy> Set and run one dose of xxxxxxxxxx tacho pulses, with optional drip of yyyyy (maximum 1 1,000) tacho pulses. See note 1 nTC - Clear the cumulative tachometer count nSP xxx.x Set speed to xxx.x rpm nSI -[...]

Watson-Marlow 620DuN and 620Du User Manual 83 26 Troubleshooting If the pump display remains blank when the pump is on, make the following checks:  Check the position of the voltage selector switch at the rear of the pump.  Check the mains power switch at the rear of the pump.  Check that mains power is available to the pump .  Check th[...]

Watson-Marlow 620DuN and 620Du User Manual 84 26.1 Error codes If an internal error occurs, a flashing error screen is displayed. Note : Signal out of range , Over signal , No signal and Leak detected error screens report the nature of an external signal. They do not flash. Error condition Suggested action RAM write error Attempt to reset by switch[...]

Watson-Marlow 620DuN and 620Du User Manual 85 27 Drive maintenance There are no user serviceable parts inside the pump. The unit should be returned to Watson-Marlow or its appointed agents or distributors for service. 28 Drive spares Replaceable main fuse, type T5A H 250V: FS0043 Foot: MR3002M x5 DuN, Du DuN, Du[...]

Watson-Marlow 620DuN and 620Du User Manual 86 29 620RE MarkII, 620RE4 MarkII and 620R MarkII pumpheads Note : MarkII pumpheads differ from MarkI pumpheads as follows: they have a new guard-switching arrangement which is not compatible with 623/624 drives. Similarly , older guards are incompatible with 620 drives. Elsewhere in this manual, the term [...]

Watson-Marlow 620DuN and 620Du User Manual 87 29.3 620RE, 620RE4 and 620R pumping conditions Pressure and viscosity  All pressure values in this oper ating instruction, from which performance and life figures have been calculated, relate to peak pipeline pressures.  Although rated to 4 bar peak pressure, this pump will gener ate in excess of [...]

Watson-Marlow 620DuN and 620Du User Manual 88 29.5 620RE, 620RE4 and 620R general operation Opening the pumphead guard  Unlock the guard with the 5mm Allen key provided (or a screwdriver).  Open the guard to its full extent. This creates the maximum clearance between the tube ports and guard to remove the tubing. Engaging/disengaging the roll[...]

Watson-Marlow 620DuN and 620Du User Manual 89 29.6 620RE and 620RE4 tube element loading 620RE element pumpheads are factory set to accept W atson-Marlow LoadSure tube elements. Pumping performance will be adversely affected if LoadSure elements are not used.  Open the guard using a suitable screwdriver or a 5mm Allen key . Disengage the rollers[...]

Watson-Marlow 620DuN and 620Du User Manual 90 LoadSure industrial elements - which have black connectors - are connected to a tubing system using cam-lock (cam and groove) fittings.  Push the female fitting over the element connector .  Pull both cam levers closed until they engage. 29.7 620R continuous tube loading  620R continuous tubing[...]

Watson-Marlow 620DuN and 620Du User Manual 91  Close the guard and push it against the track until the latch engages.  Ensure that continuous tubing is not loosely clamped at the pumphead ports.  Ensure that when the pump is re-started all of the rollers have re-engaged. A roller which has not re-engaged will “click” continuously . No [...]

Watson-Marlow 620DuN and 620Du User Manual 92  Ensure the roller pin is correctly seated into the roller arm thrust washer . Replace the circlip . Rotor removal  Remo ve the rotor cover by hand and the central locating bolt using a 5mm Allen key . Pull the rotor off the keyed shaft. Do not use tools to lever the rear face of the rotor away fr[...]

Watson-Marlow 620DuN and 620Du User Manual 93 Track re-location  Ensure that the track is clean.  Align the track so that the location holes are aligned with the threaded holes in the cased drive.  Tighten the two track retaining screws using a suitable screwdriver .  Re-connect the w aste pipework (if required). Note : The track can be[...]

Watson-Marlow 620DuN and 620Du User Manual 94 29.10 620RE, 620RE4 and 620R CIP and SIP General  Unlock the guard and disengage the rollers.  Close the guard and squeeze against the track until the latch clicks.  Observe a 1m safety area. CIP  LoadSure tube elements and continuous tubing can be cleaned using CIP processes.  Ensure tha[...]

Watson-Marlow 620DuN and 620Du User Manual 95 29.11 620RE, 620RE4 and 620R pumphead spares Ensure that the pumphead door is closed and locked before SIP cleaning commences.[...]

Watson-Marlow 620DuN and 620Du User Manual 96 Number Spare Description 063.4211.000 620R MarkII pumphead 063.4231.000 620RE MarkII pumphead 063.4431.000 620RE4 MarkII pumphead 1 069.4101.000 620RT C: continuous tubing clamp set 2 MR2052C Oddie fastener 2 MR2053B Clip: Oddie retainer 2 MR2054T Oddie washer 2 SG0021 Oddie spring 2 CX0150 Oddie circli[...]

Watson-Marlow 620DuN and 620Du User Manual 97 30 620RE, 620RE4 and 620R performance data Pumping conditions All performance figures in this operating instruction hav e been recorded against peak pipeline pressures. This pump is rated to 4 bar (58psi) peak pressure when fitted with a 620RE, 620RE4 or 620LG pumphead using high-pressure tubing. Howeve[...]

Watson-Marlow 620DuN and 620Du User Manual 98 30.1 620RE, 620RE4 and 620R flow rates Metric (SI) 620 Pumpsil silicone, l/min 620R 620RE 620RE4 Speed rpm 6.4 mm 9.6 mm 12.7 mm 15.9 mm 12.0 mm 17.0 mm 12.0 mm 17.0 mm 0.1 0.001 0.003 0.004 0.01 0.004 0.01 0.003 0.004 265 3.2 7.2 11 15 10 16 8.7 11 620 Marprene TM, Bioprene TM, l/min 620RE (hard) 620RE[...]

Watson-Marlow 620DuN and 620Du User Manual 99 620 Sta-Pure, Chem-Sure, Neoprene, USGPM 620R 620RE 620RE4 Speed rpm 6.4 mm 9.6 mm 12.7 mm 15.9 mm 12.0 mm 17.0 mm 12.0 mm 17.0 mm 0.1 0.0003 0.001 0.001 0.002 0.001 0.002 0.001 0.001 265 0.8 1.8 2.8 4.3 2.8 5.1 2.4 3.5 620 Marprene TL, Bioprene TL, USGPM 620R (standard) 620RE (standard) 620RE4 (standar[...]

Watson-Marlow 620DuN and 620Du User Manual 100 31 Continuous tubing product codes (620R) mm inch # Marprene Bioprene Pumpsil silicone 6.4 1/4 26 902.0064.032 903.0064.032 913.0064.032 9.6 3/8 73 902.0096.032 903.0096.032 913.0096.032 12.7 1/2 82 902.0127.032 903.0127.032 913.0127.032 15.9 5/8 184 902.0159.032 903.0159.032 913.0159.032 mm inch # Sta[...]

Watson-Marlow 620DuN and 620Du User Manual 101 32 LoadSure tube element product codes (620RE and 620RE4) 12mm Tri-clamp 3/4in 17mm Tri-clamp 3/4in 12mm Cam and Groove 3/4in 17mm Cam and Groove 3/4in Sta-Pure 960.0120.PFT 960.0170.PF T Chem-Sure 965.0120.SST 965.0170.SST Bioprene TM 903.P120.PFT 903.P170.PFT Bioprene TL 903.0120.PFT 903.0170.PF T Pu[...]

Watson-Marlow 620DuN and 620Du User Manual 102 33 620L and 620LG pumpheads The twin offset track design of the 620L utilises 4.0mm wall double- Y tube elements to overcome pulsation for accur ate dosing and dispensing. The 620L accepts Silicone and Marprene tubing up to 16.0mm bore. Alternatively the 620L will run with two separate 4mm- wall tubes [...]

Watson-Marlow 620DuN and 620Du User Manual 103 33.3 620L and 620LG pumping conditions Pressure and viscosity  All pressure values in this oper ating instruction, from which performance and life figures have been calculated, relate to peak pipeline pressures.  Although rated to 4 bar peak pressure, the 620LG ma y generate in excess of 4 bar wo[...]

Watson-Marlow 620DuN and 620Du User Manual 104 To remove the 620L pumphead  T o remove the pumphead you must first remov e the track. The track is secured to the pumphead by cams positioned at its left and right. Where the cam shafts are visible at the front of the pumphead, they are milled square to accept a spanner . Use the 10mm or 3/8in AF s[...]

Watson-Marlow 620DuN and 620Du User Manual 105 33.5 620L and 620LG Tube loading Double-Y elements for low-pulsation flow and dispensing applications  See illustrations at 33.4 620L remov al and installation. The track is secured to the pumphead by cams positioned at its left and right. Where the cam shafts are visible at the front of the pumphea[...]

Watson-Marlow 620DuN and 620Du User Manual 106 ment over the 625L clamping peg. Stretch the tubes and screw the clamping block into place. Replace the tr ack as described at 33.4 620L removal and installation. Two independent tubes for twin-channel pumping  See illustrations at 33.4 620L remov al and installation. The track is secured to the pum[...]

Watson-Marlow 620DuN and 620Du User Manual 107 33.8 620L and 620LG Pumphead spares Number Spare Description MRA3021A 620L pumphead MRA3022A 620LG pumphead 1 069.4001.000 T ube clamp set 2 MR3017S Adaptor plate 3 MRA0144A T ube locating peg 4 FN0493 M6x12 screws x 6 5 MRA0150A Rotor assembly 6 BB0018 Shaft bearing 7 MR0850S Front plate 8 TT0005 10mm[...]

Watson-Marlow 620DuN and 620Du User Manual 108 34 620L and 620LG performance data Sta-Pure and Marprene TM tubing are hard to compress when new . When using tubing made of these materials, the first five pumphead revolutions should be at a speed of 10rpm or greater . If the pump is run slower , the safety system built into pump drive’ s software [...]

34.2 620L tubing codes Watson-Marlow 620DuN and 620Du User Manual 109 Marprene Dispensing information Bore Litres/rev 902.E080.K40 Y element 8.0mm 0.01689 902.E120.K40 12.0mm 0.03029 902.E160.040 16.0mm 0.04251 902.0080.040 Continuous 8.0mm 0.01689 902.0120.040 12.0mm 0.03029 902.0160.040 16.0mm 0.04251 Bioprene Dispensing information Bore Litres/r[...]

Watson-Marlow 620DuN and 620Du User Manual 110 Sta-Pure Dispensing information Bore Litres/rev 960.E080.K40 Y element 8.0mm 0.01979 960.E120.K40 12.0mm 0.03349 960.E160.040 16.0mm 0.04689 Chem-Sure Dispensing information Bore Litres/rev 965.E080.K40 Y element 8.0mm 0.01979 965.E120.K40 12.0mm 0.03349 965.E160.040 16.0mm 0.04689 34.3 620LG element c[...]

Watson-Marlow 620DuN and 620Du User Manual 111 36 Trademarks W atson-Marlow, Bioprene, Pumpsil and Marprene are tr ademarks of W atson-Marlow Limited. T ygon is a trademark of the Saint Gobain P erformance Plastics Company . Fluorel is a trademark of 3M. Sta-Pure and Chem-Sure are trademarks of W .L.Gore and Associates. 37 Warning not to use pumps [...]

Watson-Marlow 620DuN and 620Du User Manual 112 Your name Company Address Postcode/zip Country Telephone Fax Product type Serial number To speed the repair, please describe all known faults The product has ... I I Been used I I Not been used If the product has been used, please complete all the following sections. If the product has not been used, p[...]