DUST FLOW - CMB Control
Contents
1. PRODUCT DATA SHEET DT770T amp DT270T PARTICULATE MONITORING SYSTEMS DUST MOT TUV APPROVED Continuous particulate emissions monitoring comprising probe combined control unit microprocessor based dataloggers and PC based software DT770T amp DI2 70T DUST MONITORING SYSTEMS ce Enhanced measurement through unique Electrodynamic technology cea alle Instruments approved to German TUV BImSchV 17 13 27 and TA Luft standards complies with IPPC Upto 4 channels of dust monitoring via expansion module and up to 255 channels capability Windows based software for analysis and full reporting facility PRODUCT DATA SHEET DT770T amp DT270T Principles of Operation The DT770T amp DT270T utilise PCME s unique Electrodynamic measurement principle When the sensing probe is installed in the duct or stack particles in the air stream interact with the sensing rod and a charge induction affect is analysed from the probe Distributions in the particle stream result in a frequency charge induction response which is directly proportional to the concentration of Air Particle Flow particulate The instrument s output is an analysis of this frequency response Sensor Unit PCME s Electrodynamic technique enables the use of fully insulated probes essential for use in high humidity gas streams as well as applications with high conductive dust loadings Very Low Dust concentrations can also2. be measured due to this unique measurement principle The performance of the DT770T and DT270T has been validated through the German T V To approval process for non condensing emission applications It complies with the requirements of sti nl BlmSchV 17 Incineration hazardous process BImSchV 13 Power Combustion process BImSchV 27 Arrestment plant emissions and TA Luft Both the DT770T and DT270T come with zero and span checks as well as a probe short circuit check paramount to any probe based dust monitor to ensure reliability of the system and to comply with the above BImSchV approvals The instruments are approved for measurement in ranges as low as 0 15mg m reflecting the high reproducibility and quality of measurement determined from the TUV field tests Refer to TUV certificate for details of complete range covered by approval Instrument Modes of Operation Environmental Mode Broken Bag Mode N B PCME s frequency induction technique and insulated probes are covered by world wide Patents Calculates and records average emissions in mg m3 for up to 24 hours using 30 second averages Activates audible and visual instrument alarms and alarm relays for both instantaneous and average emission limits instrument fault conditions and self check failure Data averaging is user selectable from 1 minute to 8 hour averages up to 600 days of 1 hour averages can be stored Stored data can be downloaded to a PC for Environm
3. d should be consulted in the selection and usage of the most suitable equipment for any particulate application Contact your national or area sales and service office PCME Ltd Clearview Building Edison Road St lves Cambs PE17 4GH Tel Int 44 0 1480 468200 Fax Int 44 0 1480 463400 E mail sales pcme co uk www pcme co uk PCME products are the subject of worldwide patents Due to the continuing product development programme PCME reserves the right to change any specifications without prior notice jane tiles
4. ental reporting process control analysis and filter performance monitoring Downloaded data can be configured to produce tailored reports Graphical display of filter cleaning cycles showing pulses from fabric filter during reverse jet cleaning Bag row identification enabling faulty rows to be highlighted Remote broken bag diagnostics option with PREDICT software Allows anticipation of possible filter failure enabling predictive maintenance scheduling Typical Baghouse Cleaning Cycle SS SS E SEE Sere N Se for Environmental compliance with graphical representation of ix emissions over selectable time periods ba Process Control Mode z o 30 second averages can be viewed both graphically and ra numerically for process trend analysis 40 30 second averages can be downloaded for analysis on PC via DustReporter software option Hourly emissions can be graphically viewed to determine filter Jt ita UWS Ute ite OWE performance up to last 24 hours H FOr koia Instrument Features Environmental process control and broken bag modes Unique graphical display showing trends and numerical data Automatic zero and span check Patented probe short circuit check Error code diagnostics Simple onboard calibration of instrument display and outputs System expandable to 4 sensors per control unit and up to 255 sensors by daisychain of control units Settings calibration and data password protected Dust concentration can be no
5. nsor 4 e 4 20mA output per sensor T O Printer Recorder Personal Computer For connection details refer to Installation and User Manual Physical Dimensions Up to 250 C Up to 400 C Up to 800 C 35 105 80 35 105 80 105 PaA i B DD D oe oe E R DP D SE pat teo H g H a 12 A 215 20 30 15 20 30 15 30 11 2 BSP 365 Supporting Stud 11 2 BSP View on A 122 144 Product Ordering Codes CONTROL UNIT EXPANSION UNIT SENSOR UNIT AND CABLE Specify for each channel XXXC X X XXXE X X XXXS X X X X X Cable length in metres or feet 10m 33ft standard 300m 975ft max fe As Temperature up to 250 C 500 F Power 115Vac 1 Power 115Vac 1 230Vac 2 230Vac 2 up to 400 C 750 F Special Z Special Z up to 800 C 1400 F Duct diameter in mm or inches Air purge No air purge N Total Number of Channels umber of sensors connected to Air purge AP Standard 1 expansion unit 1 to 3 Material Standard S Maximum 4 see connection schematic Insulated Special Z DT270T or DT770T DT270T or DT770T DT270T or DT770T Non metric Imperial units About PCME PCME is a world leader in particulate measurement The company produces equipment for emissions monitoring process control and solids flow monitoring A dedicated team of qualified application and sales engineers is always on hand an
6. rmalised to oxygen optional extra TEull environmental reporting and analysis via software TGraphical representation of long term emissions Windows Based DustReporter Software e Dust data displayed in real time for individual or multiple sensors Optional Cam Pope aHa on line software e Zoom scaling permits both instantaneous and long term trend analysis e Easy access to historical data and maintenance logs pe e tArchiving feature assists effective management of data older than 4 years tPreconfigured environmental reports iie Maintains history of dust and instrument alarms and corrective actions f a e tNormalised concentration and mass emission reports option e TProcess control trending and instantaneous dust levels graphically displayed p r fff 2 E E Er E r in real time and historically Single channel report t Denotes features available on the DT770T only PRODUCT DATA SHEET DT770T amp DT270T Electrodynamic Features for Enhanced Measurement Dynatrack Instrument automatically adjusts it s dynamic range to track fast moving dust pulses typically found after reverse jet cleaning baghouses to ensure good measurement AGC The instrument automatically adjusts its gain control to suit varying dust loading applications no need for user to adjust gain controls or potentiometers AZC Automatic Zero Compensation eliminates drift due to frequency driven signal processing Instrument Memory Capacity Per Dus
7. t Channel Instrument Functions mg m g m units or user defined 10 letter name eg kiln stack to identify stack Instrument Inputs Outputs Type Name Specification Function O OZ OZO oo Digital 2 Control Expansion Unit Control Module Display type Backlit LCD providing numerical N A DeD ansgapnicn apy Temperature range electronics No of dust channels Instrument Specifications Resolution lt 10 seconds for 95 change user selectable Self checks Automatic zero span and probe short circuit checks Sensors amp Cables Sensor Types S 316 Stainless Steel Stack Diameter mm Standard Probes for up to 3m Totally Insulated Sensor Cross Stack Probes for up PTFE or Ceramic to 6m diameter stacks Temperature Range Up to 250 C standard flue gas 400 Up to 400 C optional Enclosure Temperature Rating 25 to 70 c 800 Up to 800 C optional Enclosure Rating IP65 Over 800 C consult factory Sensor Enclosure Material Die cast Aluminium No Air Purge standard 4 BSP 0 5 litre min epoxy coated AP Air Purge optional Cable from Sensor to control unit Stack Duct Connection 1 BSP female NPT option Cable from Sensor to control unit 10m Standard 300m max PRODUCT DATA SHEET DT770T amp DT270T System Layout Control units can be daisychained to enable 255 channels Sensor 1 at SS Sensor 2 e Sensor 3 Expansion Module 4 20mA LI ow OD 7 eee F Se
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