1. DL manuals
  2. Watson-Marlow
  3. Water Pump
  4. 620Du
  5. User Manual

Watson-Marlow 620Du User Manual

Summary of 620Du

  • Page 1

    Watson-marlow 620dun and 620du user manual 1 watson-marlow bredel manuals watson-marlow 620dun / 620du pumps m-620dun-du-gb-02 1 declaration of conformity 3 2 declaration of incorporation 3 3 five-year warranty 3 4 when you unpack your pump 4 5 information for returning pumps 5 6 peristaltic pumps -...

  • Page 2

    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 tachometer frequency output 70 23.5 run/stop input 7...

  • Page 3: 1 Declaration of Conformity

    Watson-marlow 620dun and 620du user manual 3 1 declaration of conformity this declaration was issued for watson-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 voltage directive 73/23/ec, emc d...

  • Page 4: 4 When You Unpack Your Pump

    Watson-marlow 620dun and 620du user manual 4 conditions of and specific exceptions to the above warranty are: conditions products must be returned by pre-arrangement, carriage-paid, to watson- marlow, or a watson-marlow approved service centre. All repairs or modifications must have been made by wat...

  • Page 5

    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 operating instructions quick start manual note: some versions of this product will ...

  • Page 6: 7 Safety Notes

    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 way. Suitable applications peristaltic pumping is ideal for most fluids, including viscous, shear-se...

  • Page 7

    Watson-marlow 620dun and 620du user manual 7 work. In the uk this person should also be familiar with the health and safety at work 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 ...

  • Page 8: 8 Pump Specifications

    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 ...

  • Page 9

    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 parameters. Memodose allows repeat dosing. Stores in memory a pulse count ...

  • Page 10

    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 conf...

  • Page 11

    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, pollution degree 2 degrees of...

  • Page 12: 8.1 Pressure Capability

    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 ...

  • Page 13: 8.2 Dimensions

    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.

  • Page 14: 9.1 General Recommendations

    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 vibration, to ensure correct lubri- cation of ...

  • Page 15: 9.2 Do’S and Do Not’S

    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 prope...

  • Page 16: 10 Connecting This Product

    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 sel...

  • Page 17: 11 Start-Up Check List

    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 t...

  • Page 18

    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 watson-marlow start-up screen for four seconds, followe...

  • Page 19: 13 Switching The Pump On

    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 m...

  • Page 20: 14 Manual Operation

    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 display sequence detailed above, the manual mode main screen will be displayed....

  • Page 21

    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 choi...

  • Page 22: 14.2 Speed

    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 bee...

  • Page 23: 14.4 Keypad Lock

    Watson-marlow 620dun and 620du user manual 23 14.4 keypad lock the keypad can be locked to prevent 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...

  • Page 24: 14.7 Backlight

    Watson-marlow 620dun and 620du user manual 24 14.7 backlight to turn the display backlight on: depress the stop and up keys together. To 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 acti...

  • Page 25: 15 Main Menu

    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 have specific actions in menu screens: stop : in general, stop functions as a “go back” key, taking the user up one menu level witho...

  • Page 26

    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, tacho output, direction enable, direction input...

  • Page 27

    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 calib...

  • Page 28

    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 revolutions per minute. It must first be calibrated. Pump calibration can be limited to users who correctly enter a three-digit security code. If a secu...

  • Page 29

    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 be...

  • Page 30

    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 tube above), the pump briefly displays...

  • Page 31: 18 Setup

    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 sc...

  • Page 32: 18.1 Trim

    Watson-marlow 620dun and 620du user manual 32 18.1 trim dun du.

  • Page 33: 18.2 Analogue

    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 se...

  • Page 34: 18.2.1 Input 1: Speed

    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...

  • Page 35: 18.2.2 Scaling - Stroke

    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 your decision. The pump displays a screen allowing you to s...

  • Page 36: 18.2.3 Trim

    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 value using the u...

  • Page 37: 18.4 Pump I/d

    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 have not ca...

  • Page 38: 18.5 Baud

    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 chan...

  • Page 39: 18.8 Flow Units

    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 volume 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 scree...

  • Page 40: 18.9 Run Time

    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 d...

  • Page 41

    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-...

  • Page 42: 18.11 Remote Stop

    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 a...

  • Page 43: 18.12 Auto-Restart

    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. Ex...

  • Page 44

    Watson-marlow 620dun and 620du user manual 44 alternatively ... Stop the pump. Turn 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 auto...

  • Page 45: 18.15 Scrolling

    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 keys to set the minimum allowed speed and press enter to c...

  • Page 46: 18.17 Backlight

    Watson-marlow 620dun and 620du user manual 46 vious setting. If the setting displayed is correct, press enter . The pump redisplays 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 (fou...

  • Page 47: 18.19 Language

    Watson-marlow 620dun and 620du user manual 47 18.19 language the pump can be set to operate in several 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. Pr...

  • Page 48: 18.21 Beep

    Watson-marlow 620dun and 620du user manual 48 18.21 beep the pump keypad can operate silently or indicate a positive 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 ...

  • Page 49: 18.22 Security Code

    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 ...

  • Page 50: 18.23 Exit

    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 en...

  • Page 51

    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 your choice. The information on pin outs duplicates the details described in this instruction man- ual under automatic control wiring. The screens available ar...

  • Page 52: 20 Memodose

    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 memo...

  • Page 53: 20.1 Changing Dosing Speed

    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 measu...

  • Page 54: Memodose

    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 . To operate memodose with a footswitch, briefly press the footswitch whil...

  • Page 55: 22 Automatic Control Wiring

    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 mor...

  • Page 56: 22.2 Wiring Up

    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. A...

  • Page 57

    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 improved emc protection in extremely noisy environments, shielded cabl...

  • Page 58

    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. Twist a suitable length of the cable screen. Loosen one of the pcb retaining screws and wind the sh...

  • Page 59: 22.3 Speed: Analogue Input

    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 ...

  • Page 60: 22.4 Scaling: Analogue Input

    Watson-marlow 620dun and 620du user manual 60 4-20ma circuit impedance: 250 Ω . For voltage modes, a stable, reliable voltage source can be used with a dc voltmeter. Circuit impedance: 22k Ω . Inverting the response is set up in software. Do not invert the polarity of the termi- nals. A remote poten...

  • Page 61: 22.5 Speed: Analogue Output

    Watson-marlow 620dun and 620du user manual 61 age in the setup menu. Otherwise the reference voltage supply from the rem-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 ...

  • Page 62: 22.7 Run/stop Input

    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...

  • Page 63: 22.10 Memodose Input

    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 t...

  • Page 64: 22.12 Outputs 1, 2, 3, 4

    Watson-marlow 620dun and 620du user manual 64 22.12 outputs 1, 2, 3, 4 note : relay 1 (j14) is represented here. Relay 2, relay 3 and relay 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 t...

  • Page 65: 22.14 Rs485 Input

    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 controll...

  • Page 66: 23 Automatic Control Wiring

    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-way d-connectors. The top one is male, the bottom one is female. Mating female and mal...

  • Page 67

    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 c...

  • Page 68: 23.1 Speed: Analogue Input 1

    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 o...

  • Page 69

    Watson-marlow 620dun and 620du user manual 69 4-20ma circuit impedance: 250 Ω . For voltage modes, a stable, reliable voltage source can be used with a dc voltmeter. Circuit impedance: 22k Ω . Inverting the response is set up in software. Do not invert the polarity of the pins. A remote potentiomete...

  • Page 70: 23.3 Speed: Analogue Output

    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 spee...

  • Page 71: 23.5 Run/stop Input

    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 ...

  • Page 72: 23.8 Memodose Input

    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 rot...

  • Page 73: 23.9 Leak Detection Input

    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...

  • Page 74: 23.10  Pump Status Outputs

    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 p...

  • Page 75: 23.10.2 Logic Output 2

    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 t...

  • Page 76: 23.10.3 Logic Output 3

    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 t...

  • Page 77: 23.11 Supply Voltages

    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...

  • Page 78

    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. Remote control signals may start the pump without warning. How to get into auto operation while the manual mode main screen is displayed, press a...

  • Page 79

    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 acco...

  • Page 80

    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. Remote control signals may start the pump without warning. How to get into network operation while the manual mode main screen is displayed, press th...

  • Page 81

    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 ...

  • Page 82

    Watson-marlow 620dun and 620du user manual 82 command parameters meaning nca - clear lcd display nch - home the cursor ndo xxxxxxxxxx set and run one dose of xxxxxxxxxx tacho pulses, with optional drip of yyyyy (maximum 11,000) tacho pulses. See note 1 ntc - clear the cumulative tachometer count nsp...

  • Page 83: 26 Troubleshooting

    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 i...

  • Page 84: 26.1 Error Codes

    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...

  • Page 85: 27 Drive Maintenance

    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 du...

  • Page 86: And 620R Markii Pumpheads

    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 wit...

  • Page 87: 29.3 620Re, 620Re4 and 620R

    Watson-marlow 620dun and 620du user manual 87 29.3 620re, 620re4 and 620r pumping conditions pressure and viscosity all pressure values in this operating instruction, from which performance and life figures have been calculated, relate to peak pipeline pressures. Although rated to 4 bar peak pressur...

  • Page 88: 29.5 620Re, 620Re4 and 620R

    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...

  • Page 89: 29.6 620Re and 620Re4

    Watson-marlow 620dun and 620du user manual 89 29.6 620re and 620re4 tube element loading 620re element pumpheads are factory set to accept watson-marlow loadsure tube elements. Pumping performance will be adversely affected if loadsure elements are not used. Open the guard using a suitable screwdriv...

  • Page 90

    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 continuou...

  • Page 91: 29.8 620Re, 620Re4 and 620R

    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-engag...

  • Page 92

    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 remove 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 le...

  • Page 93

    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 waste pipework (if re...

  • Page 94: 29.10 620Re, 620Re4 and 620R

    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 u...

  • Page 95: 29.11 620Re, 620Re4 and 620R

    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..

  • Page 96

    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 620rtc: continuous tubing clamp set 2 mr2052c oddie fastener 2 mr2053b clip: oddie retainer 2 mr2054t oddie w...

  • Page 97: 30 620Re, 620Re4 and 620R

    Watson-marlow 620dun and 620du user manual 97 30 620re, 620re4 and 620r performance data pumping conditions all performance figures in this operating instruction have been recorded against peak pipeline pressures. This pump is rated to 4 bar (58psi) peak pressure when fitted with a 620re, 620re4 or ...

  • Page 98: 30.1 620Re, 620Re4 and 620R

    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 ...

  • Page 99

    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, usgp...

  • Page 100: (620R)

    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 90...

  • Page 101: Codes (620Re and 620Re4)

    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.Pft chem-sure 965.0120.Sst 965.0170.Sst bioprene tm 903.P120.Pft 903.P...

  • Page 102: 33 620L and 620Lg Pumpheads

    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 accurate dosing and dispensing. The 620l accepts silicone and marprene tubing up to 16.0mm bore. Alternatively the ...

  • Page 103: 33.4 620L and 620Lg

    Watson-marlow 620dun and 620du user manual 103 33.3 620l and 620lg pumping conditions pressure and viscosity all pressure values in this operating instruction, from which performance and life figures have been calculated, relate to peak pipeline pressures. Although rated to 4 bar peak pressure, the ...

  • Page 104

    Watson-marlow 620dun and 620du user manual 104 to remove the 620l pumphead to remove the pumphead you must first remove 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 a...

  • Page 105

    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 removal and installation. The track is secured to the pumphead by cams positioned at its left and right. Where the cam s...

  • Page 106: 33.6 620L and 620Lg Care and

    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 track as described at 33.4 620l removal and installation. Two independent tubes for twin-channel pumping see illustrations at 33.4 620l removal and i...

  • Page 107

    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 tube clamp set 2 mr3017s adaptor plate 3 mra0144a tube locating peg 4 fn0493 m6x12 screws x 6 5 mra0150a rotor assembly 6 bb0018 s...

  • Page 108

    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 saf...

  • Page 109: 34.2 620L Tubing Codes

    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 0.0...

  • Page 110: 34.3 620Lg Element Codes

    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 0.0334...

  • Page 111: 36 Trademarks

    Watson-marlow 620dun and 620du user manual 111 36 trademarks watson-marlow, bioprene, pumpsil and marprene are trademarks of watson-marlow limited. Tygon is a trademark of the saint gobain performance plastics company. Fluorel is a trademark of 3m. Sta-pure and chem-sure are trademarks of w.L.Gore a...

  • Page 112

    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 follo...