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ELGA 

CENTRA – MDS/LDS/RDS US Operator Manual 

 

CENTRA – MDS/LDS/RDS US Version 01 – 08/14 

Page 33

 

CENTRA LDS/RDS US HFR VERSION 

The pressure within the distribution loop is automatically 
controlled by the unit and is set at a factory default of 3 bar 
(typically) at the end of the distribution loop. 

To adjust the pressure in the distribution loop requires specialist 
equipment and it is recommended that changes are made by an 
ELGA LabWater Service Engineer. 

The sustaining valve ensures that during periods of high 
demand all water is diverted to the point of use. During 
recirculation the valve should be adjusted to maintain a flow of 
between 5-10l/min. 

1. 

LOCATE the pressure regulating valve at the bottom 
left of the valve assembly. 

2. 

ADJUST the pressure in the distribution loop by 
pulling the cap up and turning the knob 
(CLOCKWISE to INCREASE  pressure, ANTI- 
CLOCKWISE to DECREASE pressure). 

3. 

PUSH the cap back down to lock the cap in place 
and prevent the setting from changing. 

 

 

CAUTION! 

Adjustment of the sustaining valve in the 
HFV/HFR  does not increase the pressure 
available in the loop and incorrect adjustment 
may result in reduced performance. 

Step 6 - Sanitization 

1. 

SANITIZE the system as described in Section 10 - 
Sanitization Procedures. 

Note:  It is good practice to sanitize new installations 

during commissioning. 

Step 7 - Fit 0.2µm filter 

1. 

Fit new or existing filter at the end of sanitization as 
described in Section 9.2 -  Replacing bacterial and 
particulate filter. 

 

Location of parts 

CENTRA – LDS/HFR US 

Содержание ELGA CENTRA-LDS-US

Страница 1: ...CENTRA MDS LDS RDS US Operator Manual ...

Страница 2: ......

Страница 3: ...ll restrictions on reproduction and use apply to all media in which this information may be placed VWS UK Ltd pursue a policy of continual product improvement and reserve the right to alter without notice the specification design price or conditions of supply of any product or service ELGA LabWater is a trading name of VWS UK Ltd ELGA is the global laboratory water brand name of Veolia Water ELGA ...

Страница 4: ...the CENTRA 14 5 CONTROLS 20 5 1 PASSkeys 21 5 2 System Preferences 21 5 3 Setting Up Replacement Timers Reminders 29 6 COMMISSIONING 31 6 1 Initial Start Up 31 7 OPERATION 34 7 1 Night service Operational day 34 7 2 Continuous Recirculation 24 7 34 8 MONITORING 35 8 1 Fill and recirculation 35 8 2 Recirculation 35 8 3 Consumable dates RDS 35 9 MAINTENANCE 36 9 1 Replacing the Composite Vent Filter...

Страница 5: ...lation sanitization MDS and LDS 41 10 4 Manual recirculation sanitization procedure MDS and LDS 42 11 TROUBLE SHOOTING 43 12 CONSUMABLES AND ACCESSORIES 45 13 KEY TO CONTROL PANEL 46 13 1 Icons 46 13 2 Alarm Conditions 47 13 3 Replacement Timers 48 14 WARRANTY CONDITIONS OF SALE 49 15 USEFUL CONTACT DETAILS 51 ...

Страница 6: ......

Страница 7: ...US 230V ac 50 60Hz CENTRA RDS HFR US 230V ac 50 60Hz Unless stated otherwise the products will be referred to in the following terms CENTRA MDS US CENTRA LDS US CENTRA RDS US 1 2 Use of this Manual This manual contains full details on installation commissioning and operation of the CENTRA unit If the instructions in this handbook are not followed then the performance of this product and or the saf...

Страница 8: ...asily accessible by all users WARNING THIS APPLIANCE MUST BE EARTHED 2 2 Pressure The main water supply should be isolated and residual pressure released prior to removal of any consumables or carrying out work on the unit Switching off the electrical supply will isolate the source of pressure and residual pressure in the unit will automatically be relieved to drain within a few seconds 2 3 Saniti...

Страница 9: ...oratory medical and industrial applications The supply of purified water is obtained from either an external source or internal technologies Purified water may be distributed around the installation under pressure to single or multiple points of use A range of accessories is available to complement the unit see Section 12 Consumables and Accessories for detail CENTRA MDS US CENTRA LDS RDS US CENTR...

Страница 10: ...sed To maintain water purity it is necessary to filter the air Air borne particles and bacteria are removed by an air filter Alternatively an improved level of water purity can be maintained within the recirculation system using a composite vent filter which removes air borne contaminants such as volatile organic compounds and carbon dioxide CENTRA RDS US Feed water enters through a control valve ...

Страница 11: ...n the recirculation system using a composite vent filter which also removes air borne contaminants such as volatile organic compounds and carbon dioxide The CENTRA RDS US includes the ability to drain the reservoir completely via V4 and sanitize the installation semi automatically via V8 to ensure that bacterial levels within the installation are kept to a minimum CENTRA RDS HFV HFR US Feed water ...

Страница 12: ...ed To maintain water purity it is necessary to filter the air Air borne particles and bacteria are removed by an air filter Alternatively an improved level of water purity can be maintained within the recirculation system using a composite vent filter which also removes air borne contaminants such as volatile organic compounds and carbon dioxide The CENTRA RDS HFV HFR US includes the ability to dr...

Страница 13: ...ELGA CENTRA MDS LDS RDS US Operator Manual CENTRA MDS LDS RDS US Version 01 08 14 Page 7 3 3 Flow Diagrams CENTRA MDS LDS US flow diagram CENTRA RDS US flow diagram ...

Страница 14: ... 510kg 1 124lb 530kg 1 168lb Installation Floor Connections Unit type MDS LDS LDS HFV HFR RDS HFV HFR RDS Inlet bspp Reservoir drain bspp Ion exchange cylinder inlet n a n a n a bspp Ion exchange cylinder outlet n a n a n a bspp Ion Exchange Connection pressure rating bar psi Maximum n a n a n a 6 90 Sanitization temperature flush drain n a n a n a bspp Ringmain loop outlet bspp Ringmain loop retu...

Страница 15: ...le MΩ cm or µS cm Feedwater water quality alarm Selectable Alarm setpoints Product water quality unit Selectable MΩ cm or µS cm Product water quality alarm Selectable Alarm setpoints Date time Adjustable Auto restart after power failure Selectable On Off Temperature alarm Audible alarm Selectable On Off Night Weekend service Selectable On Off Indicators Pre treated feedwater quality Resistivity or...

Страница 16: ...e circuit breaker protection of incoming electrical supply MCB Pump thermal overload Low voltage control circuit 24V dc Visual alarms Audible alarms Optional remote display Operational Features Restart on power interrupt Optional printer kit for record of operating parameters Optional sanitization kit MDS and LDS Optional remote display As part of our policy of continual improvement we reserve the...

Страница 17: ...in a clean dry environment WARNING ENSURE THAT THE UNIT IS POSITIONED ON A FLOOR CAPABLE OF SUPPORTING THE MAXIMUM WORKING LOAD OF THE UNIT ADDITIONAL FLOOR LOADING CONSIDER ATIONS MUST BE GIVEN WHEN OPERATING PRETREATMENT EQUIPMENT MOUNTED ON THE TOP OF THE CENTRA MDS WARNING THE CENTRA LDS RDS SHOULD NEVER BE INSTALLED WITH ADDITIONAL EQUIPMENT MOUNTED ON TOP OF THE UNIT FAILURE TO OBSERVE THIS ...

Страница 18: ...ING ELECTRICITY SUPPLY BEFORE REMOVING COVERS OR COMMENCING MAINTENANCE WORK COULD RESULT IN DEATH Pipework and Pipework Installation The precise details of each installation will vary according to the individual customer requirements Note Refer to Typical installation and layout diagram Section 4 3 fig 1 and fig 2 If existing pipework installations are being utilized it is recommended that Techni...

Страница 19: ...ility to communicate to a number of remote displays allowing operating and alarm parameters to be changed and monitored throughout the installation System constraints must be observed during installation to ensure satisfactory network performance Further details are available from Technical Support or your local ELGA LabWater representative ...

Страница 20: ...nufacturer recommendations for the selected pipework systems and install suitable adapters into the connection manifolds of the CENTRA 3 Refer to Ringmain Loop Installation Guide available from ELGA LabWater Technical Support for examples of preferred pipework construction and assembly Note The connection size on the CENTRA is bspp in all positions The overflow connection 3 4 flexible hose is loca...

Страница 21: ...CENTRA MDS LDS RDS US Operator Manual CENTRA MDS LDS RDS US Version 01 08 14 Page 15 Fig 1 Schematic of typical CENTRA MDS LDS US distribution loop Fig 2 Schematic of typical CENTRA RDS US distribution loop ...

Страница 22: ... back plate 6 REMOVE the nut and washers securing the earthing cable and store in a safe place Note The electrical cover can now be completely removed and stored safely 7 DIRECT the cable through the rear of the unit to the power socket Note The power cable should be routed avoiding signal cables and sensitive circuitry 8 LOCATE the cable restraint on the left of the electrical back plate 9 UNSCRE...

Страница 23: ...RECTLY RATED CABLE COULD RESULT IN FIRE AND DEATH IF IN DOUBT CONTACT A QUALIFIED ELECTRICAN 2 REMOVE the two screws that secure the right hand edge of the door 3 OPEN the door fully 4 DIRECT the cable through the rear of the unit to the power socket Note The power cable should be routed avoiding signal cables and sensitive circuitry 5 LOCATE the electrical cover on the top of the unit and REMOVE ...

Страница 24: ... supply earth to the central earthing point on the electrical back plate along with the earth wire from the electrical cover 15 REPLACE the earthing nut and washers and TIGHTEN WARNING THIS APPLIANCE MUST BE PROPERLY EARTHED ENSURE THE EARTH STUD LOCATED NEXT TO THE MCB IS USED TO EARTH THE INCOMING MAINS SUPPLY 16 REPLACE the electrical cover and screws and ensure an effective seal from water ing...

Страница 25: ...pply Connection Section 2a 2b 2 LOCATE the level control connection on the micro controller board PURELAB Prima 20 use 3 5mm jack socket PCB identifier J2 PURELAB Prima 30 60 90 120 use 6 pin DIN socket PCB identifier JR1 Refer to Technical Support for specific system guidance Note Only one level control socket must be used to make a level control connection 3 DIRECT the level control cable into t...

Страница 26: ...to use the controls will be given in the appropriate sections The CENTRA control panel has a range of control icons General operational icons are as follows Further icons are described in the appropriate sections and a complete listing is included in Section 13 BUTTON ICON Function PROCESS Turns the process on off LEFT Menu Scroll Shift Up CENTRE Accept Replacement dates for consumables and saniti...

Страница 27: ...d process control functions When the CENTRA unit is started for the first time after installation the following steps should be carried out to set up system preferences Note System preferences can be changed and implemented during normal operation It is not necessary to stop the process Step 1 System Access ELGA PASSkey The ELGA Passkey prevents unauthorized access to specific operator settings en...

Страница 28: ...he minute setting and set the seconds to 00 6 PRESS TICK Step 3 Date Used to instigate change reminders it will appear on printed records 1 PRESS SCROLL to edit date OR PRESS TICK to proceed to step 4 2 PRESS and HOLD UP to increase or DOWN to decrease day 3 PRESS SHIFT to step cursor onto month 4 PRESS UP to increase or DOWN to decrease month 5 PRESS SHIFT to step cursor onto year 6 PRESS UP to i...

Страница 29: ... unit setting RDS This screen allows preferred displayed units of water purity to be set to either MΩ cm or µS cm This only affects the quality measurement in the recirculation loop 1 PRESS SCROLL to change mode MΩ cm or µS cm OR PRESS TICK to proceed to step 8 2 PRESS TICK Step 8 Uncompensated water quality RDS A U will indicate uncompensated readings recirculation loop only in the normal process...

Страница 30: ...ed setting OR TICK to proceed to step 11 2 PRESS TICK Step 11 Temperature alarm settings TS1 RDS variants This screen is used for selecting the value at which the RO permeate temperature alarm will activate The alarm does not stop the process and will automatically reset if the temperature returns below the set point 1 PRESS SCROLL to select alarm point increments of 1 ranging from 20 to 50 C OR P...

Страница 31: ... and water is used every day 1 PRESS SCROLL to change mode ON OR PRESS TICK to proceed to step 14 Note Proceed to step 16 if continuous operation is selected ON Step 14 Periods of operation To maximize efficiency and reduce the likelihood of heat build up the normal operational hours for the installation can be selected During OFF periods the unit will automatically enter recirculation for a perio...

Страница 32: ... will automatically cycle as required don t push PROCESS button again Step 16 Display viewing angle adjustment The angle of the display can be electronically adjusted up and down to optimize the display graphics visibility 1 PRESS and HOLD UP or DOWN to adjust viewing angle OR PRESS TICK to proceed to step 17 2 PRESS TICK Step 17 Auto restart This allows the selection of the AUTO MANUAL restart op...

Страница 33: ...l station is specific to its mounting position and should be adjusted as described in Section 5 2 Step 16 1 PRESS RESET OR PRESS TICK to complete settings User PASSkey OR PRESS TICK to proceed to step 21 Master PASSkey only Note At this stage the CENTRA screen may timeout before each remote display are registered This does not affect registration of the remote display 2 ENSURE the RS485 network is...

Страница 34: ...cation 4 REPEAT instruction 2 and 3 until all User PASSkeys are registered maximum of 8 users 5 PRESS TICK to complete settings Step 22 Programming of sanitization PASSkeys Sanitization PASSkeys are required to implement sanitization These keys can be deleted or added Note PASSkeys can only be registered for one use i e user of sanitization 1 PRESENT master PASSkey 2 PRESS TICK until the sanitizat...

Страница 35: ...cement Date and proceed to UV lamp Reminder 2 PRESS TICK confirm that resetting is required OR PRESS CROSS χ to abort reset 3 PRESS TICK Step 3 UV lamp replacement date RDS 1 PRESS RESET button to reset UV Replacement Date OR PRESS TICK to accept Replacement Date and proceed to RO Particle Filter Replacement 2 PRESS TICK confirm that resetting is required OR PRESS CROSS χ to abort reset 3 PRESS TI...

Страница 36: ...button to reset 0 2µm Filter Replacement Date OR PRESS TICK to accept Replacement Date and complete settings 2 PRESS TICK confirm that resetting is required OR PRESS CROSS χ to abort reset 3 PRESS TICK Note Two dates are displayed in the sanitization screen Last sanitization Next sanitization required 4 EXIT Sanitization reminder screen ...

Страница 37: ...e display states the correct unit type If incorrect contact your local ELGA LabWater representative Step 3 Water supply 1 The water supply to the CENTRA should be installed correctly as described in Section 4 3 Step 1 2 TURN on the feedwater supply to the unit WARNING ENSURE THAT ALL PRE TREATMENT EQUIPMENT IS INSTALLED AND FLUSHED TO DRAIN BEFORE COMMENCING CENTRA COMMISSIONING FAILURE TO INSTALL...

Страница 38: ...e pressure in the distribution loop by TURNING the knob ANTI CLOCKWISE to decrease pressure and then use the lock nut to stop it moving Note If the valve starts to make a high pitch noises at the required settings adjust the valve slightly and the noise will stop The noise is caused by the matching of the natural harmonics of the spring within the valve and is not a malfunction of the CENTRA CAUTI...

Страница 39: ...LOCATE the pressure regulating valve at the bottom left of the valve assembly 2 ADJUST the pressure in the distribution loop by pulling the cap up and turning the knob CLOCKWISE to INCREASE pressure ANTI CLOCKWISE to DECREASE pressure 3 PUSH the cap back down to lock the cap in place and prevent the setting from changing CAUTION Adjustment of the sustaining valve in the HFV HFR does not increase t...

Страница 40: ... period the unit will run in intermittent recirculation 10 minutes every two hours to maintain water purity around the distribution loop 7 2 Continuous Recirculation 24 7 Refer to Section 5 2 Step 13 If the unit is set to continuous recirculation it will constantly recirculate the water and fill the reservoir as required It is recommended that the system be run in continuous mode only when the dem...

Страница 41: ... Feed temperature 8 2 Recirculation Displayed value Auto scroll Manual scroll Product quality Product temperature Flowrate from outlet Pressure at end of distribution loop Reservoir volume RDS Fixed display of measured values on MDS MDS HF and LDS 8 3 Consumable dates RDS The consumable dates and periods of reminder are adjustable to meet specific applications by a trained ELGA Service Engineer St...

Страница 42: ...and carbon dioxide The Composite Vent Filter Air Filter should be replaced in the following circumstances Six months after initial installation Reservoir overflow indicated by incorrect reservoir volume Quality tests indicate replacement is required Step 1 Replacement of CVF filter LC156 LC173 1 ENSURE the process is OFF 2 OPEN the front of the unit by removing securing screws 3 LDS RDS only LOCAT...

Страница 43: ...e installation see Sanitization Procedures Section 10 Step 1 Replacement of bacterial and particulate filter 1 ENSURE the process is OFF and ISOLATE power 2 DEPRESSURIZE the distribution loop by opening a convenient point of use OR by PRESSING the red knob on the top of the filter housing Note Some water may be spilt 3 OPEN front of unit by removing securing screws 4 RDS HF only close valve on out...

Страница 44: ...lectrical flex entering top of UV assembly and withdraw lamp WARNING IT IS RECOMMENDED THAT DURING THE HANDLING OF THE LAMP CUT RESISTANT GLOVES BE WORN 5 HOLD lamp in gloved hand and PULL firmly on electrical connector to remove 6 DISCARD lamp CAUTION Dispose of lamp in accordance with local authority regulations 7 REMOVE new lamp from packaging and follow the instructions included for cleaning 8...

Страница 45: ...xchange purification media cylinder should be replaced in the following circumstances Water purity in the installation starts to deteriorate or after six months use 1 ENSURE process is OFF and ISOLATE power 2 DEPRESSURIZE the distribution loop by opening a convenient point of use OR by PRESSING the red knob on the top of the filter housing some water may be spilt 3 ISOLATE cylinder from loop by cl...

Страница 46: ... FOLLOW RECOMMENDATIONS FOUND IN THE MANUFACTURERS MATERIAL SAFETY DATA SHEET AND ANY APPLICABLE OSHA STANDARDS FOR THE CHEMICAL BEING USED WARNING LABEL THE MACHINE WITH APPROPRIATE WARNING SIGNS SUCH AS DO NOT USE CONTAINS STERILANT NOT PROVIDED Minncare Cold Sterilant is a Peracetic and Hydrogen Peroxide based solution Refer to the Minncare label for additional information and follow all applic...

Страница 47: ...circulation pump for 10 minutes to allow sampling OR PRESS FLUSH to flush the system for a further five cycles 14 REPEAT instructions 14 and 15 if necessary 15 Take a water sample from the recirculation loop and confirm sanitant is rinsed to a satisfactory level using test strips LC165 16 PRESENT Sanitization PASSkey to acknowledge completion 17 RECOMMISION DI cylinders See section 9 4 Installatio...

Страница 48: ...e in the loop return line 5 CLOSE the outlet once the level reaches between 60 to 90 liters 6 PRESS the process button to switch the process OFF 7 UNSCREW the access cap on the top of the tank MDS and MDS HF only OR UNSCREW the front door and REMOVE the large black cap LDS only 8 ADD Minncare into the tank typical 900ml 9 REPLACE the cap and hand tighten 10 PRESS the process button and allow to re...

Страница 49: ...display cable connections If problem persists call Customer Services Alarm and Flashing Quality value RDS RDS HF Mute alarm Check alarm set value is correct See Section 5 2 step 9 and 10 Alarm Settings If fitted check ion exchange purification media cylinder is in line and not isolated from the distribution loop Replace ion exchange cylinder if fitted If problem persists call Customer Services MΩ ...

Страница 50: ...essure drop across 0 2µm filter Replace if higher than 0 5bar RDS only Pump worn call Customer Services Unit noise level greater than specified Open front door and secure pipework to stop vibration Check air is not being drawn into the recirculation loop If problem persists call Customer Services PASSkey not recognized PASSkey not valid Request registration with Master PASSkey holder If problem pe...

Страница 51: ...Not on HF 6 months 2 years LC173 RDS Optional on all variants Composite vent filter High Flow 6 months 2 years FILT 50105 RDS HFR HFV variants 0 2µm filter 20 6 months 2 years Service Life is an estimate only and will depend on the application and feed water quality Care should be taken to order the correct consumable items in advance Cat No Accessory LA665 CENTRA remote display LA666 Dot matrix p...

Страница 52: ...Accept Feed Auto restart PASSkey Scroll back Leak detection Step back Locked Bell Level sensor disconnect Standby Menu Bypass DI Mute alarm Calibration point Night Cancel sample Node Cancel Option OFF Rinse Option ON Clock Output Connect DI Pause Date Print Day Overfill Down Recirculate Drain Replace CVF Save data Replace Recirc filter Hazard Replace UV lamp ...

Страница 53: ...use High pressure icon flashing RDS only Distribution loop pressure too high adjust pressure sustaining valve to 6bar Recirculation Pump Pressure 6 bar Adjust distribution loop pressure and or pump by pass WARNING This operation should only be completed by an ELGA LabWater service engineer Leak detection icon flashing Reservoir overfill or internal leak within enclosure find leak and drain water f...

Страница 54: ...t quality above alarm setting check quality setting replace ion exchange cylinder Outlet temperature alarm measurement flashing RDS Outlet temperature above alarm setting check temperature setting run water to drain Output quality overrange flashing RDS Quality sensor disconnected or broken check connection replace Low level icon flashing RDS Low level in reservoir insufficient supply check demand...

Страница 55: ...e remedy provided herein shall not be deemed to have failed of its essential purpose so long as VWS UK Ltd is willing and able to repair or replace any nonconforming VWS UK Ltd product or part VWS UK Ltd shall not be liable for consequential incidental special or any other indirect damages resulting from economic loss or property damage sustained by any customer from the use of its products Water ...

Страница 56: ...cts or components manufactured by companies other than VWS UK Ltd or its affiliates Non VWS UK Ltd products are covered by the warranty if any extended by the Product manufacturer VWS UK Ltd hereby assigns to the purchaser any such warranty however VWS UK LTD EXPRESSLY DISCLAIMS ANY WARRANTY WHETHER EXPRESSED OR IMPLIED THAT THE NON VWS UK LTD PRODUCTS ARE MERCHANTABLE OR FIT FOR A PARTICULAR PURP...

Страница 57: ...LGA LabWater Lane End Industrial Park High Wycombe Bucks HP14 3BY UK Tel 44 0 203 567 7300 Fax 44 0 203 567 7205 E mail techsupport elgalabwater com For the address of your nearest ELGA LabWater Sales and Service office visit the country list on our website http www elgalabwater com or contact ELGA at the number above ...

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