ABB 7320 Series, Instruction Manual

Page 1: ...7320 Series Dissolved Organics Monitor Instruction Manual Models 7320 000 Transmitter with 7320 100 Low Level Sensor 7320 200 High Level Sensor 7320 300 Coagulation Dose Sensor ...

Page 2: ...rational conditions result in degraded process system performance leading to personal injury or death Therefore comply fully with all Warning and Caution notices Information in this manual is intended only to assist our customers in the efficient operation of our equipment Use of this manual for any other purpose is specifically prohibited and its contents are not to be reproduced in full or part ...

Page 3: ... Mains Voltage 11 3 5 Start Up 11 4 CONTROLS AND DISPLAYS 12 4 1 Displays 12 4 2 Switch Familiarisation 12 Section Page 5 PROGRAMMING 13 5 1 Programming Map 13 5 2 Operating Display Page 14 5 3 Sensor Calibration 15 5 4 Security Code 15 5 5 Set Up Parameters 16 5 6 Set Up Outputs 17 5 7 Factory Settings 17 6 MAINTENANCE 18 6 1 Standard Solutions 18 6 1 1 Zero Standard 18 6 1 2 Span Standard 18 6 1...

Page 4: ...es are analysed at two wavelengths the measurement wavelength of 254 nm and the reference wavelength of 400 nm at which the sample constituents of interest do not absorb This dual light path system provides information which allows the measured value to be corrected for any turbidity due to suspended matter in the sample The monitor is calibrated with a pure solution of a suitable organic compound...

Page 5: ... monitor must be fixed to a wall or support in such a position as to make reading the displays and operating the keypad convenient It is advisable to install a suitably switched and fused isolating box to the right of the monitor in a position which allows the power to be switched on or off while standing in front of the display 2 1 2 Flowcell Assembly The flowcell assembly is supplied on mounting...

Page 6: ...ters Fixing Centers 252 9 9 Mark out the fixing centers of the four mounting holes see Fig 2 2 Fix the instrument securely to the wall Drill suitable holes for the type of fixings to be used 1 2 3 2 2 Installing the Monitor Figs 2 2 and 2 3 Fig 2 2 Overall Dimensions Fig 2 3 Monitor Fixing Details 2 MECHANICAL INSTALLATION ...

Page 7: ...let Connector for 6 mm i d Tube Located Behind the Sensor Body Cleaner Receiver Emitter 410 327 155 CRS 118 Dimensions in mm 2 3 Installing the Flowcell Figs 2 4 and 2 5 Notes Connecting pipework may be flexible plastic or rigid PVC polypropylene or metal depending on the installation Isolating valves should be fitted to allow removal of the instrument Space should be left on each side of the asse...

Page 8: ...ts to facilitate emitter module removal during maintenance See Section 6 Maintenance Fix to Wall Bracket Fixed to Flowcell Cover Emitter side For maintenance purposes the following minimum clearances are recommended Left for receiver removal 150 mm Right for emitter removal 100 mm Top for filling with standard solution 200 mm 110 162 373 Dimensions in mm 2 MECHANICAL INSTALLATION Fig 2 5 Overall D...

Page 9: ...lating valve B Open the sample in isolating valve A such that the overflow from the de bubbler is at a minimum Note Sample regulating valves together with a flow indicator are recommended to ensure easy maintenance and consistent performance These devices are not supplied with the 7320 Series UV Organic Pollution Monitoring system Important Note The de bubbler MUST be mounted vertically with the f...

Page 10: ...r miniature circuit breaker MCB must also be fitted by the installer Before making any connections ensure that the power supply any high voltage operated control circuits and high common mode voltage are switched off 3 1 Access to Terminals Fig 3 1 Information Relays the relay contacts are voltage free and must be appropriately connected in series with the power supply and the alarm control device...

Page 11: ... value of the RC network is too low for suppression an alternative value must be used If the correct value cannot be obtained contact the manufacturer of the switched device for details on the RC unit required For DC applications fit a diode as shown in Fig 3 2B For general applications use an IN5406 type 600V peak inverse voltage at 3A part no B7363 Note For reliable switching the minimum voltage...

Page 12: ...ctions Fig 3 3 Note Refer to Fig 3 1 for Access to Terminals Caution Slacken terminal screws fully before making connections Warning The power supply earth ground must be connected to ensure safety to personnel reduction of the effects of RFI and correct operation of the power supply interference filter l a n i m r e T s l i a t e D n o i t c e n n o C 1 t u p n i l a n g i s V U 2 t u p n i l a n...

Page 13: ...nt of a diagnostics alarm see Section 6 3 1 for details 3 4 Selecting the Mains Voltage Fig 3 4 3 5 Start Up When all sample drain connections have been made and electrical signalling installation has been completed and checked switch on the power supply Proceed to Section 5 for programming details Fig 3 4 Selecting the Mains Voltage 3 3 1 Out of Sample Alarm Input Connections A digital input is s...

Page 14: ...lly stored Parameter Value Adjust D Selecting and Storing a Parameter Choice Parameter X Y Z Select Parameter 1 Parameter 2 Parameter 3 Page X Parameter 4 Advance to next parameter or New value is automatically stored or 4 CONTROLS AND DISPLAYS Fig 4 1 Location of Controls and Displays Fig 4 2 Functions of the Membrane Switches 4 1 Displays Fig 4 1 The upper display window comprises a 4 digit 7 se...

Page 15: ... Sensor Type 7320 100 7320 200 7320 300 Damping Value 5 Inferred Units Diss Organics Clean Int 60 min Flow Alarm Off Normally Closed Normally Open Alter Sec Code 0000 Alter Cal Code 0000 Absorbance Metre Colour H Coag Dose mg l mg l T O C Conversion Factor 2 00 Current o p Span 10 00 mg l C Default Output 8 00 mg l C 0 10 0 20 Current o p Type 4 to 20 mA Test Current O P 5 00 mg l C A1 Action Off ...

Page 16: ...1 mgl 1 T O C Equivalent value in mgl 1 Dissolved Organics This is for display only See Set Up Outputs Page for programming details This is for display only See Set Up Outputs Page for programming details Switching the Lamp On Off In the interests of safety it is essential that the lamp is switched off before doing any maintenance on the sensor When off Lamp Disabled is displayed in the lower wind...

Page 17: ...on Note The calibration pages have a 60 minute timeout after which the instrument reverts to normal operation Sensor Calibration Page Calibration Access Code Enter the code in the range 0000 to 9999 Fill the flowcell with carbon free de ionized water This message is displayed for about one minute then changes to Fill Span Sol Fill the flowcell with the required calibration solution 7320 100 low ra...

Page 18: ...ort term variations in reading typically due to bubbles in the sample Always use the lowest value which gives an acceptably stable reading Dissolved Organics mode Inferred Units mode See Appendix Enter the conversion factor between Dissolved Organics and the Inferred Unit selection Note Absorbance metre has a fixed factor of 1 5 Cleaning Interval Enter required interval between automatic cleaning ...

Page 19: ...s Set Up Outputs Page Set the current output span between the following limits Low range sensor 0 to 2 and 0 to 20 mgl 1 C High range sensor 0 to 20 and 0 to 100 mgl 1 C Set the current output to a default in the event of a diagnostic alarm Select the current output 4 to 20mA 0 to 20mA 0 to 10mA Set the value within the current o p span The instrument automatically transmits a test signal to repre...

Page 20: ...h high quality de ionized or distilled water the standard solution should be discarded after use Low Range 10 mgl 1 C Dilute 10 ml of the stock standard solution to 1 litre in a volumetric flask High Range 40 mgl 1 C Dilute 40 ml of the stock standard solution to 1 litre in a volumetric flask 6 1 3 Calibration Checks The system uses an optical system with very stable electronics which avoids the r...

Page 21: ...AINTENANCE Important Notes Ensure that O rings are removed with the screw collars it is possible for these seals to be left inside the flowcell During the cleaning procedure support the modules to remove any strain from the cables Either grub screw pins or pegs ensure that the modules locate in only one position The emitter module is heavier than the receiver so extra support is needed Caution Car...

Page 22: ...l Emitter Sample Outlet Split the flowcell to access the flow chamber see Fig 6 3 for procedure 5 Reassemble flowcell using new seals Ensure that the modules locate in the keways before tightening the collars Unscrew the collar and carefully withdraw the module 1 Seal Seal Unscrew the collar and carefully withdraw the module 2 Optical Receiver Drain Valve Inlet Isolating Valve 6 MAINTENANCE Fig 6 ...

Page 23: ...ng plate from the angle bracket 2 Remove the four stainless steel closing screws holding the flowcell halves together Thread two of the stainless steel screws into holes provided and advance them slowly and evenly to push the cell halves apart When the O ring seal is clear of the body the cell halves should separate easily 2 3 4 5 1 6 MAINTENANCE Fig 6 3 Splitting the High Range Flowcell ...

Page 24: ...r Securing Nut Remove the wiper blades securing nut Remove the blades and washers from the drive shaft Before reassembling the components on the drive shaft perform a Manual Clean section 5 2 to park the blades Reassemble the components on the drive shaft in the order shown and tighten the nut Also ensure that the blades are in the parked position i e horizontal 5 Perform another Manual Clean sect...

Page 25: ...l p e R o N l a n r e t n i e h t n e e w t e b m e l b o r p e r a w d r a h a s i e r e h T s d r a o b t i u c r i c n o i t c n u f l a m c i n o r t c e l e n a t c e p s u S r o r r E n o i s r e v n o C g n i d r a g e r m e l b o r p n o i t a c i n u m m o c e r a w d r a h a s i e r e h T n o i t a g o r r e t n i l a n g i s n o i t c n u f l a m c i n o r t c e l e n a t c e p s u S a ...

Page 26: ... the appropriate wires the emitter receiver see Fig 3 3 7 Switch on the mains supply and allow the instrument to warm up for five minutes 6 4 2 Adjusting the Emitter Brightness 1 Fill the flowcell with high purity water 2 Enter the Factory Programming Page see overpage using the security code 73 If this has been changed at any time use 7300 3 Scroll to Interrogate Display 4 Remove the small plug o...

Page 27: ...m the sensor S UV254 Signal R IR880 Reference Signal This value is updated after a sensor calibration and is for diagnosic purposes only This value is updated after a sensor calibration and is for diagnosic purposes only This value is updated after a sensor calibration and is for diagnosic purposes only This value is updated after a sensor calibration and is for diagnosic purposes only This value ...

Page 28: ...de enter value in the range 0000 to 9999 Note To reset factory default settings 1 Switch off the instrument 2 Swtich on again with the down arrow switch pressed This setting does not need to be adjusted This setting does not need to be adjusted This setting does not need to be adjusted This setting does not need to be adjusted This setting does not need to be adjusted This setting does not need to...

Page 29: ...tion at the rate of one flash at 6 second intervals typical equates to 5 2 of the rated lamp life Display Measured value 4 digit backlit LCD window Information 2 x 16 character dot matrix backlit LCD window Current output 0 to 10 0 to 20 and 4 to 20mA Maximum load resistance 750 ohms Accuracy 0 25 of FSD or 0 5 of reading Diagnostics Out of sample Lamp disabled Loss of signal Electronic failure Se...

Page 30: ... l p m a S 4 4 0 0 2 3 7 t u p t u o t n e r r u C d r a o b 5 4 0 0 2 3 7 d r a o b m r a l A 6 4 0 0 2 3 7 y s s a U S P v 2 1 s c i n o r t c e l e n i a m 7 4 0 0 2 3 7 y s s a U S P v 4 2 y l p p u s r e t t i m e 8 4 0 0 2 3 7 Emitter Assy 7320 036 Wiper Blade Assy 7320 032 Large Rear Spacer 7320 033 Small Nylon Washers 0225 536 Receiver Assy 7320 035 Wiper Module 7320 030 Valve 0216 509 Con...

Page 31: ...by the instrument using a conversion factor shown below With the exception of 1 the conversion factor needs to be determined by laboratory analysis of the actual sample and it assumes that the factor is constant When using these inferred units it must always be remembered that the instrument only measures absorbance of dissolved organics at 254nm Therefore if the conversion factor changes the inst...

Page 32: ...30 NOTES ...

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Page 34: ...32 NOTES ...

Page 35: ...ial Analytics Instrumentation pH conductivity and dissolved oxygen transmitters and sensors ammonia nitrate phosphate silica sodium chloride fluoride dissolved oxygen and hydrazine analyzers Zirconia oxygen analyzers katharometers hydrogen purity and purge gas monitors thermal conductivity Customer Support We provide a comprehensive after sales service via a Worldwide Service Organization Contact ...

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