ParTech ASLD 2200 Monitor Instruction Manual Download Page 1

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INSTRUCTION MANUAL

ASLD 2200 Monitor

Sludge Blanket Level Monitor

Partech (Electronics) Ltd

Charlestown, St Austell

Cornwall, PL25 3NN, UK

Phone: +44 (0) 1726 879800

Fax: +44 (0) 1726 879801

email: [email protected] website: www.partech.co.uk

Summary of Contents for ASLD 2200 Monitor

Page 1: ...UAL ASLD 2200 Monitor Sludge Blanket Level Monitor Partech Electronics Ltd Charlestown St Austell Cornwall PL25 3NN UK Phone 44 0 1726 879800 Fax 44 0 1726 879801 email sales partech co uk website www...

Page 2: ...nsor Selection 5 Controls and Settings 6 Installation 8 Configuration 10 Calibration 12 Scraper Clearance 13 Outputs 14 Maintenance 15 Fault Finding 16 Spare Parts 18 Technical Specification 19 Techni...

Page 3: ...relates to the bottom of the tank and 20 mA to the water surface Sensors The ASLD 2200 Monitor can be used with the Soli Tech 20 sensor minor modifications will allow use with the older IR sensor ser...

Page 4: ...shown in the graph below The motor LED s will come on once the related sensor LED has been on for 5 seconds and the motor will activate The limits LED s will be used when the system reaches either 0 o...

Page 5: ...should only be used if the sludge is very light with very clear supernatant Equivalent IR Series Sensor IR100 Soli Tech 20 range 0 1500 This is the most commonly used sensor and is suitable for use on...

Page 6: ...ction of these controls is explained in later sections Circuit Board Ident Type of Control Use Zero Push Button Calibration Top Limit Potentiometer Calibration Bridge Clearance Potentiometer Scraper C...

Page 7: ...uit board Both sets have the same function These buttons are normally used to aid cleaning of the sensor by bringing the sensor to the surface Up and Stop This button will cause the sensor to rise to...

Page 8: ...rface whilst minimising the effect of disturbance caused by incoming sludge and by the tank scraper It is normal for the 4 20 mA output signal to be transmitted via slip rings to the site control syst...

Page 9: ...C to Encoder Red 14 Input 1 from Encoder Blue 15 Input 2 from Encoder Yellow 16 O VDC to Encoder Black 17 Nominal 18 VDC to Motor ve Green 18 Nominal 18 VDC to Motor ve Red Brown 19 Not Used 20 Not Us...

Page 10: ...Sewage Treatment Primary Water Treatment Thickeners 179160 Soli Tech 20 range 0 30000 IR8 range 0 30000 Sewage Treatment Thickeners Depth Range Selection The depth range depends on the encoder disc t...

Page 11: ...is jumper to be in place Link Groups C and D These links work as a pair and both must either be to the left or to the right These only effect operation with the rotary switch on automatic Other settin...

Page 12: ...m from the bottom of the tank Press the Red Zero push button to set the zero point it is sometimes necessary to press this button a few times to ensure a correct zero setting It is important that the...

Page 13: ...command These external sensors can be wired in parallel to the up and down button on the outside of the enclosure using terminals 1 to 3 Bridge Clearance Control Associated with the scraper clearance...

Page 14: ...brate the analogue output connect a multimeter on it mA setting in series with the output The motor up and motor down controls can then be used to force the output to 4 mA and 20 mA as necessary If th...

Page 15: ...no loops of cable are displaced during cleaning and the sensor should be lowered carefully into the tank after cleaning Changing the Circuit Board 1 Isolate the mains supply to the instrument the exte...

Page 16: ...orrectly positioned Corrective Action Adjust the position of the encoder so that the blade passes centrally through the gap it is also advisable to check that the encoder is free from dust Symptom Dis...

Page 17: ...iled Corrective Action Clean the sensor if the problem persists contact Partech Symptom The motor does not respond to changes in the sludge blanket level but the sensor is working correctly Fault The...

Page 18: ...r ASLD 2200 148121 IR8 Sensor for ASLD 2200 General Part No Description 101170 Mounting Bracket for ASLD 2200 103370 Instruction Manual for ASLD 2200 Repair Part No Description 101480 1A Anti Surge Fu...

Page 19: ...nals Max conductor cross section 2 5 mm2 Alarm Output Number of Output 1 Contact Closure Alarm Types Zero and or 100 fixed Relay Rating 0 5 A 100 VDC Analogue Output Type 4 20 mA Resolution Better tha...

Page 20: ...Description of fault Returning Instruments for Repair If equipment needs to be returned to Partech for repair or service the following address should be used SERVICE DEPT PARTECH ELECTRONICS LTD CHARL...

Page 21: ...1992 EMC Generic Emission Standard Residential commercial light industry EN 50082 1 1994 EMC Generic Immunity Standard Residential commercial light industry following the provisions of European Direct...