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Watson- Marlow, qdos, qdos20, qdos30, qdos60, qdos120 and ReNu are trademarks of
Watson-Marlow Limited.

m-qdos-en-02

129

Summary of Contents for qdos120

Page 1: ...Watson Marlow qdos User Manual m qdos en 02 1...

Page 2: ...eneral recommendations 20 7 2 Do s and do not s 21 7 3 Pressure capability 21 7 4 Dry running 21 8 Connecting to a power supply 22 8 1 AC mains power supply 22 8 2 DC power supply option 23 9 Start up...

Page 3: ...7 Channel related diagnostic data 62 18 Flow calibration mode Manual PROFIBUS Universal and Universal only 64 19 Analog 4 20mA mode Universal and Universal only 67 19 1 Calibrate the pump for 4 20mA...

Page 4: ...tubing 115 27 Pumphead Replacement qdos 20 60 and 120 117 27 1 Connecting interface tubing 120 28 Ordering information 123 28 1 Pump part numbers 123 28 2 Spares and accessories 124 29 Performance dat...

Page 5: ...1 Declaration of conformity This pump is ETL listed ETL control number 3050250 Cert to CAN CSA std C22 2 No 61010 1 Conforms to UL std 61010A 1 See Pump specifications on page 13 m qdos en 02 5...

Page 6: ...n advised of the possibility of such damages Watson Marlow shall not be liable for any loss damage or expense directly or indirectly related to or arising out of the use of its products including dama...

Page 7: ...icious or accidental damage or neglect are excluded l Failure caused by electrical surge is excluded l Failure caused by incorrect or sub standard system wiring is excluded l Damage by chemical attack...

Page 8: ...Packaging disposal Dispose of packaging materials safely and in accordance with regulations in your area The outer carton is made of corrugated cardboard and can be recycled 3 2 Inspection Check that...

Page 9: ...ety information booklet 3 4 Optional accessories Spares and accessories are available such as l Additional ReNu pumphead l HMI protective cover not compatible with remote models l Interface tubing l I...

Page 10: ...cause delays Please ensure that you fax us this form and receive an RGA Returned Goods Authorisation before you despatch the product s A copy of this form must be attached to the outside of the packag...

Page 11: ...allation starting up maintenance and repair should be performed by qualified personnel only The unit must be isolated from mains power while work is being carried out The motor must be secured against...

Page 12: ...damaging the seal integrity Damage to the seal could cause aggressive chemicals to enter the pump housing and react wth the components internal to the pump housing The reaction may produce explosive...

Page 13: ...nted Pumphead locking latch Outlet Inlet Mounting plate HMI not Remote Drive unit qdos 20 60 and 120 with relay module ReNu pumphead left hand mounted Pumphead locking latch Outlet Inlet Mounting plat...

Page 14: ...amps Outlet Inlet Power Mounting plate HMI not Remote Drive unit qdos 30 with 110v or 24v relay module pumphead retaining clamps ReNu pumphead left hand mounted Outlet Inlet Power Mounting plate 110V...

Page 15: ...etails Product reference Model Serial number 6 1 Pump specifications Flow Range flow control Manual PROFIBUS Universal and Universal qdos120 0 1 2000 ml min 20000 1 qdos60 0 1 1000 ml min 10000 1 qdos...

Page 16: ...temperature range 20 C to 70 C 4 F to 158 F Maximum altitude 2 000m 6 560ft Humidity non condensing 80 up to 31 C 88 F decreasing linearly to 50 at 40 C 104 F Pollution degree 2 Noise 70dB A at 1m Req...

Page 17: ...easurement control and laboratory use BS EN 61010 1 incorporating A2 Category 2 Pollution degree 2 Degrees of protection provided by enclosures IP code BS EN 60529 amendments 1 and 2 EN61326 1 2006 El...

Page 18: ...4 214mm 8 4 C 118mm 4 6 82 5mm 3 2 118mm 4 6 118mm 4 6 D 266mm 10 5 233mm 9 2 266mm 10 5 266mm 10 5 E Optional relay modules H or R 43mm 1 7 43mm 1 7 43mm 1 7 43mm 1 7 F 173mm 6 8 173mm 6 8 173mm 6 8...

Page 19: ...9oz 5 9 13lb 0oz Universal 110V relay 4 8 10lb 9oz 5 9 13lb 0oz Universal 110V relay 4 8 10lb 9oz 5 9 13lb 0oz qdos30 Model Drive Drive with pumphead kg lb kg lb Manual 4 1 9lb 5 05 11lb 2oz Remote 4...

Page 20: ...dos is a positive displacement pump therefore it is recommended best practice that customers incorporate discharge pressure relief in their piping system Failure to fit a pressure release valve in the...

Page 21: ...This will ensure flooded suction and maximum pumping efficiency Do run at slow speed when pumping viscous fluids Flooded suction will enhance pumping performance particularly for materials of a visco...

Page 22: ...e is not user detachable and the entry gland at the front of the pump should not be disassembled Each pump is supplied with a power cable The connector at the pump end of the cable is IP66 rated The m...

Page 23: ...gland at the front of the pump should not be disassembled Notes It is highly recommended that an isolating switch is provided between the power source and the pump The cable is fitted with M8 ring te...

Page 24: ...Pumphead Replacement qdos 20 60 and 120 on page 117 l Ensure the pumphead ports are securely fitted to the interface tubing l Ensure proper connection has been made to a suitable power supply l Ensure...

Page 25: ...onnection It is the user s responsibility to ensure the safe and reliable operation of the pump under remote and automatic control Never apply mains power to the five pole M12 connectors Apply the cor...

Page 26: ...nal Contact Reserved Min 5V max 30V Pulse 5 24V 40ms minimum pulse length referenced to pin 4 Alternatively connect pin 5 of the output to this pin via normally open switch White 3 4 20mA 250 input im...

Page 27: ...ined dose size Refer to the contact mode section Speed analog input The speed of this pump can be controlled remotely by a current analog signal within the range 4 20mA The analog signal must be appli...

Page 28: ...Minimum 1A 100V The resistor or relay needs to be sized correctly to ensure no damage to the pump transistors Damage incurred due to incorrect sizing or installation will not be covered by warranty Th...

Page 29: ...been reconfigured by the user This option is available in the Control settings menu Note If the mA output is to be used for reading from a multimeter a 250 resistor is required in series 10 4 Optiona...

Page 30: ...rs within the relay module situated on the side of the pump The relay module must be removed from the pump housing to allow suitable cables to be connected to the terminal connectors via the watertigh...

Page 31: ...onvenience of the installer As standard two cable glands are provided with the pump Recommended control cable conductors for the terminal blocks metric 0 14sq mm 2 5sq mm solid and 0 14sq mm 1 5sq mm...

Page 32: ...he gland cap do not remove it and pass the cable in through the gland When it has passed through the gland continue to push the cable through 4 Pull through sufficient cable to reach the connectors re...

Page 33: ...ce Ensure that multi strand wires are terminated with a crimp suitable for the wire diameter Failure to do so may result in electric shock 9 When all conductors are in position replace the module cove...

Page 34: ...ltage across other terminals Permanent damage not covered by warranty may result The maximum load on the relay contacts of this pump is 110VAC 5A or 30VDC 5A Alarm output J5 Connect the output device...

Page 35: ...ector J3 Alternatively a 24V logic input may be applied to the Stop Contact terminal ground to the GND terminal of the adjacent 4 20mA I P connector J2 The sense of the remote stop input can be config...

Page 36: ...put if this has been reconfigured by the user This option is available in the Control settings menu Note If the mA output is to be used for reading from a multimeter set on mA a 250 resistor is requir...

Page 37: ...ump is 115VAC max current 5A Voltages do not require transformer isolation The relays are specified to switch 115VAC mains powered loads These relay outputs are not suitable for 24VDC logic signals Al...

Page 38: ...terminal of the Analog connector J2 Ground to the GND connector of the same terminal In Analog mode the pump set speed will be proportional or inversely proportional to the analog input 4 20mA circuit...

Page 39: ...terminals are supplied for earth shielding of cables The input cable and output cable earths can be connected to either terminal 4 20mA and low voltage signals separate from mains power Use separate...

Page 40: ...M12 socket provided for PROFIBUS installation is IP66 rated To maintain an IP66 rated system the PROFIBUS cable T adaptors and terminating resistors used must be fitted with IP66 rated M12 industrial...

Page 41: ...xD N Data line minus A line 3 DGND Data ground 4 RxD TxD P Data line plus B line 5 Shield Ground connection Note If the pump is the last bus device connected to the PROFIBUS cable it must be terminate...

Page 42: ...pump displays the start up screen with the Watson Marlow Pumps logo for three seconds Selecting your chosen display language Use the keys to move the selection bar to your required language Press SELE...

Page 43: ...time start up defaults Flow rate qdos120 960ml min qdos60 480ml min qdos30 240ml min qdos20 120ml min Pump status Stopped Calibration qdos120 16 ml rev qdos60 6 67ml rev qdos30 8 ml rev qdos20 4 ml r...

Page 44: ...is displayed see Error codes on page 108 l The pump displays the start up screen with the Watson Marlow Pumps logo for three seconds followed by the home screen l Start up defaults are those in place...

Page 45: ...Switching on Remote When power is supplied to the pump all the LED icons will illuminate for three seconds After this period the pump will operate in accordance with the inputs received m qdos en 02...

Page 46: ...m 5V maximum 24V to input pin 5 15 2 Pump operation Manual PROFIBUS Universal and Universal only Keypad functions Manual PROFIBUS Universal and Universal only Backlight Change value move selection bar...

Page 47: ...When this occurs you may notice a brief flash Screen Icons Manual PROFIBUS Universal and Universal only Under certain conditions various icons will appear in the screen display area The pump displays...

Page 48: ...keys will scroll through the available modes The available modes are l Manual default l Flow calibration l Analog 4 20mA Universal and Universal only l Contact mode Universal only l PROFIBUS PROFIBUS...

Page 49: ...ed If enabled the pump will return to the last known operating state when the power was lost When the pump is running it displays an animated clockwise arrow In normal operation the direction of flow...

Page 50: ...AND DECREASING FLOWRATE Using the keys will increase or decrease the flowrate Decreasing flowrate l A single key press will decrease flowrate by the least significant digit of the chosen flowrate uni...

Page 51: ...l Hold down the key for flowrate scrolling Max 100 function Manual mode only l Press and hold the MAX key to run at maximum flow l Release the key to stop the pump l The volume dispensed and time ela...

Page 52: ...ss can only be set from the pump The user can set the station address within this mode Select MODE Using the keys scroll to PROFIBUS and press SELECT If PROFIBUS is not enabled the screen below will p...

Page 53: ...17 1 Assigning the PROFIBUS station address at the pump The station address can only be set from PROFIBUS settings The station address cannot be automatically assigned by the master Select MODE Using...

Page 54: ...in the range from 1 to 125 126 is the default station address Press FINISH to set the station address or NEXT to enable disable PROFIBUS communication Use the keys to enable or disable PROFIBUS commun...

Page 55: ...into the field device selected during configuration by the user Download of I O configuration into the field device selected during configuration by the user Cyclic data exchange I O data and field d...

Page 56: ...be integrated into a PROFIBUS DP V0 network using a General Station Data GSD file The file identifies the pump and contains key data including its communication settings the commands it can receive an...

Page 57: ...er 0x0E7D Protocol_Ident 0 Station_Type 0 FMS_supp 0 Hardware_Release V1 00 Software_Release V1 00 Redundancy 0 Repeater_Ctrl_Sig 0 24V_Pins 0 9 6_supp 1 19 2_supp 1 45 45_supp 1 93 75_supp 1 187 5_su...

Page 58: ...7 4 User Parameter Data The user parameter data is set by entering values into the Ext_User_Prm_Data_ Const 0 line of the GSD file This is indicated below and the relevant bytes are listed in the tabl...

Page 59: ...il safe byte is configured as shown in the following table If no bits are set or an invalid bit pattern is set the default fail safe behaviour shall be to stop the pump Hex Description 0x00 The pump w...

Page 60: ...l Reset 8 15 Reserved Pumphead Speed Setpoint The speed setpoint is a 16 bit unsigned integer value that represents the speed of the pump head in 1 10th of RPM For example 1205 represents 120 5 RPM Se...

Page 61: ...16 bit Byte 5 6 Hours Run 16 bit Byte 10 9 No of full motor revolutions 16 bit Bytes 8 7 Reserved 32 bit Byte 13 14 15 16 Fluid Level 32 bit Byte 17 18 19 20 Unassigned 32 bit Byte 21 22 23 24 Unassi...

Page 62: ...29 55 BYTE HEX TO DECIMAL 10 9 10 9 A FF FF 65536 B FF C4 65476 MOTOR FULL REVOLUTIONS A Minus B 59 A Start of Dose B End of Dose PUMPHEAD REVOLUTIONS MOTOR REVS GEARBOX RATIO 59 29 55 Divide 1 996 RP...

Page 63: ...Under voltage Over voltage 0xA3 Over voltage 0xA3 Over voltage Motor stall 0xA4 Overload Over temp 0xA5 Over temp 0xA5 Over temp Tacho fault 0xB1 Device related 0x11 Leak detected 0xB2 Device related...

Page 64: ...ersal and Universal only This pump displays flow rate in ml min Setting the flow calibration Select MODE Using the keys scroll to Flow calibration and press SELECT Using the keys enter the maximum flo...

Page 65: ...Press START to begin pumping a volume of fluid for calibration Press STOP to stop pumping fluid for the calibration m qdos en 02 65...

Page 66: ...g the keys enter the actual volume of fluid pumped To accept the new calibration press ACCEPT or RECALIBRATE to repeat the procedure Press HOME or MODE to abort The pump is now calibrated m qdos en 02...

Page 67: ...etween the external milliamp signal and the flow rate is determined by configuring the two points A and B as shown in the graph below The rate of flow can be proportional or inversely proportional to...

Page 68: ...DE l Using the keys scroll to Analog 4 20mA and press SELECT The current signal being received by the pump is displayed for information only on the HOME screen Pressing the INFO function key will disp...

Page 69: ...the 4 20mA profile by using a multiplication factor Press from the HOME screen to access the scaling factor Use the keys to enter a multiplication factor A figure of 1 00 will not alter the 4 20mA pr...

Page 70: ...r Press ACCEPT to confirm the new 4 20mA PROFILE figures This will not alter the stored A and B points the multiplication factor will re scale the 4 20mA profile To re set the original flow rates re s...

Page 71: ...des The speed limit cannot exceed the high flow rate set point B The speed limit function takes precedence over the scaling factor For example if the qdos20 4 20mA profile is 0 flow at 4mA to 100 flow...

Page 72: ...ow signals must be within range If the signal sent is out of range you will not be able to set the signal input value and progress to the next step in the process Select MODE Using the keys scroll to...

Page 73: ...h signal input to the pump or enter the current value using the keys ACCEPT appears when high mA signal is within tolerance limits Press ACCEPT to accept the high signal input or CANCEL to return to t...

Page 74: ...n Using the keys scroll to the desired flow rate Select SET FLOW or press BACK to return to the previous screen Setting a low signal Send the low signal input to the pump or enter the current value us...

Page 75: ...signal is less than 1 5mA the following error message will be displayed ACCEPT appears when low mA signal is within tolerance limits Press ACCEPT to accept the low signal input or CANCEL to return to...

Page 76: ...n Using the keys scroll to the desired flow rate Select SET FLOW This proceeds to the screen confirming calibration is complete Select CONTINUE to start in proportional mode or MANUAL to continue in m...

Page 77: ...en an external pulse is received The dose volume is a user defined value between 0 1ml and 999l 20 1 Contact settings To setup contact mode firstly you will need to define the settings To do this pres...

Page 78: ...at the pump will do when pulses are received while a dose is in progress If set to ignore the pulses will be forgotten by the pump If set to add any pulses received while dosing will be queued up in m...

Page 79: ...ome screen will be displayed The home screen displays the contact dose the flow rate and the dose time remaining when a dose is in progress The dose time is only displayed on screen when it is between...

Page 80: ...hem at intervals We recommend examining your process to identify whether a 4 20mA signal can be used rather than a pulse Where technology does not allow a 4 20mA signal we recommend using a signal con...

Page 81: ...e that your system design permits reverse flow If unidirectional valves are installed then reverse flow will not function and the pump will build up excessive pressure within the pipework Press and ho...

Page 82: ...functionality To enable this position the selection bar over fluid recovery in the mode menu and press the SETTINGS function key Select ENABLE to turn this functionality on The reverse process can be...

Page 83: ...y 5 24 volts to input pin 1 2 Apply 5 24 volt to pin 5 of the pump input 3 Remove the remote stop signal 4 Apply 4 20mA to the analog input This will cause the pump to run in reverse at a speed propor...

Page 84: ...the HOME screens or INFO screens For example Manual HOME screen Manual INFO screen This will display the main menu as shown below Use the keys to move the selection bar between the available options...

Page 85: ...luid the volume of fluid in the supply reservoir will reduce the bar will track the reducing volume The pump can be set up to output an alarm when a defined level of fluid is reached This will warn th...

Page 86: ...deactivate the fluid level monitor The fluid bar will no longer appear on the HOME screens The fluid volume unit can be changed by pressing the US GALLONS or LITRES key the key name will change depen...

Page 87: ...ner using the keys to adjust the volume Press NEXT when you are happy you have the correct volume Now use the keys to set the alert level In the screen above the alert level is set to 20 Press SELECT...

Page 88: ...ample when re filling then press SELECT when the bar highlights the Adjust level option You can now use the keys to adjust the level of fluid in the tank The accuracy of the fluid level monitor will i...

Page 89: ...CURITY SETTINGS from the Main menu Auto keypad lock Press ENABLE DISABLE to switch on off the Auto keypad lock When active the keypad will lock after 20 seconds of inactivity Once locked it will displ...

Page 90: ...e keys in the security settings menu highlight PIN protection Press ACTIVATE DEACTIVATE to switch on off the PIN protection When active the PIN protection will request a PIN before allowing any change...

Page 91: ...ired digit press the NEXT DIGIT key After selecting the fourth digit press ENTER Now press CONFIRM to check that the number entered is the PIN you require Press CHANGE to return to PIN entry Pressing...

Page 92: ...s an override feature should you forget your PIN Please contact Watson Marlow for details of how to reset the PIN 21 3 General settings Manual PROFIBUS Universal and Universal only To view the general...

Page 93: ...power returns to the operating state it was in when power was lost For example if the pump was running in manual mode prior to power loss it would return to the same operating mode and continue to ru...

Page 94: ...ored in the pump This number can be re called if required from the help screen accessed from the main menu To define or edit the asset number move the selection bar over the asset number menu entry an...

Page 95: ...mp label has been previously defined this will be displayed on screen to allow editing otherwise it will display the default label WATSON MARLOW Use the keys to scroll through the available characters...

Page 96: ...function is not carried out in error Press CONFIRM followed by RE CONFIRM to reset the defaults Language Select language from the general settings menu to choose an alternative display language for t...

Page 97: ...JECT to return to the language choice screen 21 4 MODE menu Manual PROFIBUS Universal and Universal only Selecting MODE menu from the main menu will navigate you to the MODE menu This is the same as p...

Page 98: ...ss SELECT to choose the required function Speed limit The maximum speed the qdos30 qdos60 or qdos120 pump is capable of running at is 125 rpm The maximum speed the qdos20 pump is capable of running at...

Page 99: ...r pump prior to 9 February 2017 Check your software version before using this the speed limit setting Check the software version of the main processor code by following the instructions in section 18...

Page 100: ...olume counter from the control settings menu Select RESET to zero the volume counter The volume counter can be viewed by pressing INFO from your home screen Invert alarm logic Universal model Select i...

Page 101: ...Configurable outputs Universal model Select Configure outputs from the control settings menu Output 1 and Output 2 Use and SELECT to choose which output to configure m qdos en 02 101...

Page 102: ...ich pump status you require for the chosen output The tick symbol indicates the current setting Use and SELECT to choose the logic state of the chosen output Press SELECT to program the output or Exit...

Page 103: ...based on the full speed range of the pump At 0 rpm the pump will output 4mA At maximum rpm the pump will output 20mA Match input scale The 4 20mA output will be scaled to the same range as the 4 20mA...

Page 104: ...op input Select Configure start stop input from the menu Use and SELECT to configure the input setting A low stop input is recommended as the pump will be stopped in the event of any loss of input sig...

Page 105: ...21 6 Help Manual PROFIBUS Universal and Universal only Select Help from the main menu to access the help screens m qdos en 02 105...

Page 106: ...efinition of each error state is provided in the table below LED Icons Status 4 20mA Running Remote stop Change pumphead 4 20mA signal Power on On 4 20mA in range On On 4 20mA high On Flash 4 20mA low...

Page 107: ...y the following message Manual PROFIBUS Universal and Universal models If a leak is detected the following LED icon will display Remote only Status 4 20mA Running Remote stop Change pumphead 4 20mA si...

Page 108: ...splayed Note Signal out of range and Leak detected error screens report the nature of an external condition They do not flash Error code Error condition Suggested action Er 0 FRAM write error Attempt...

Page 109: ...l signal range Trim signal as required Or seek support Er21 Over signal Reduce the analog control signal Err50 Communication error Attempt to reset by switching power OFF ON Or seek support 23 3 Error...

Page 110: ...24 Technical support Watson Marlow Limited Falmouth Cornwall United Kingdom TR11 4RU Telephone Number 44 0 1326 370370 Email aftersales uk wmftg com Web www wmftg com m qdos en 02 110...

Page 111: ...25 Drive maintenance There are no user serviceable parts inside the pump The unit should be returned to Watson Marlow for service See Information for returning pumps on page 10 m qdos en 02 111...

Page 112: ...charge lines It is only possible to fit the pumphead in one orientation with the arrow pointing upwards The pumphead retaining clamps should only be unlocked or locked by hand Note In this manual we h...

Page 113: ...pumphead 6 Fully loosen the two pumphead retaining clamps 7 To disengage the pumphead from the retaining clamps carefully detach the pumphead from the pump housing and rotate it in an anti clockwise...

Page 114: ...mphead is a reverse procedure of the pumphead removal 1 Remove the new pumphead from its packaging 2 Align the new pumphead with the pump drive shaft and slide into position on the pump housing 3 Rota...

Page 115: ...unction to the text when connecting interface tubing to the pumphead Before connecting the interface tubing ensure that the supplied Santoprene seals 1 are correctly fitted in the head ports 1a and th...

Page 116: ...etach both the relevant parts 4 2 Cut the end of the tubing so that it is square 4a and 4b not 4e 3 Slide the user connection collar onto the tube 4 Slide the compression ring onto the tube ensuring t...

Page 117: ...r discharge lines It is only possible to fit the pumphead in one orientation with the arrow pointing upwards The pumphead retaining latch should only be unlocked or locked by hand Note In this manual...

Page 118: ...lever 7 To disengage the pumphead from the drive rotate it in a clockwise direction by approximately 15 8 Safely dispose of the used pumphead according to your own health and safety regulations Take c...

Page 119: ...umphead in an anti clockwise direction by approximately 15 to engage the retaining lugs 4 Lock the pumphead into position using the pumphead locking latch 5 Connect the input and output connections to...

Page 120: ...seals 1 are correctly fitted in the head ports 1a and that the Santoprene seals and connector material is compatible with pumped fluid Hydraulic connector pack polypropylene barb threaded fittings Hy...

Page 121: ...the tubing so that it is square 4a and 4b not 4e 3 Slide the user connection collar onto the tube 4 Slide the compression ring onto the tube ensuring the inner step is facing the cut end See 4a and 4...

Page 122: ...M24x2mm 5 x 8 6 3 x 11 5 9 x 12 5 x 8 6 3 x 11 5 9 x 12 10 x 16 10 x 16 SAFETY OVERFLOW m qdos en 02 122...

Page 123: ...C Swiss D India South Africa B Brazil Tube material 2 Santoprene 8 SEBS The pumphead side location is required when ordering The left right perspective assumes the user is looking at the front of the...

Page 124: ...nection pack polypropylene compression fittings 0M9 221H P01 Hydraulic connection pack polypropylene barb threaded fittings 1 4 hose barb 3 8 hose barb 1 4 BSP 1 4 NPT 0M9 221H P02 Hydraulic connectio...

Page 125: ...H F04 Hydraulic connection pack PVDF 1 2 hose barb 0M9 401H F05 P V C Interface tubing pvc 6 3x11 5mm 2m 6 5ft length 0M9 2222 V6B P V C Interface tubing pvc 10x16mm 2m 6 5ft length 0M9 2222 VAD P V C...

Page 126: ...length 0M9 2225 E9C P o l y e t h y l e n e Interface tubing polyethylene 5x8mm 5m 16ft length 0M9 2225 E58 Replacement baseplate 0M9 223M X00 Input lead M12 IP66 3m 10ft length 0M9 203X 000 Output l...

Page 127: ...ures of up to 10 bar 145 psi however flowrate and pumphead life will be affected 29 3 Dry running The pump will continue to operate when there is gas present in the suction line and will maintain prim...

Page 128: ...8 20 22 24 26 28 30 32 400 600 800 1000 1200 1400 1600 1800 2000 2200 15 10 5 0 0 20 40 60 80 100 34 Flowrate ml min 1 Flowrate US GPH Suction gauge pressure bar Discharge gauge pressure bar Santopren...

Page 129: ...30 Trademarks Watson Marlow qdos qdos20 qdos30 qdos60 qdos120 and ReNu are trademarks of Watson Marlow Limited m qdos en 02 129...

Page 130: ...31 Publication history m qdos en 02 Watson Marlow qdos 20 30 60 and 120 User Manual First published 09 2018 m qdos en 02 130...

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