envea VIEW 370 Скачать руководство пользователя страница 19 | Manualshive

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envea VIEW 370 Скачать руководство пользователя страница 19

VIEW 370/373

3 System Description

ENVEA

UK Ltd

(PC-000855-MA Issue 6, December 2021)

11

3.4

Principle of Operation

Figure 3: Principle of operation

–

ElectroDynamic

®

sensors.

The sensor utilizes the proven and reliable

ElectroDynamic

®

Probe Electrification

technology patented by ENVEA, whereby the collision and interaction of particles
with the probe rod (particle impingement) causes a small electrical charge transfer
to occur between the particulate and the probe rod. It is this small electrical
charge that provides the signal that is monitored by the electronics. Provided the
material type remains constant, the signal generated is proportional to the dust
concentration, even if an accumulation of dust forms on the sensor rod.

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Содержание VIEW 370

Страница 1: ...VIEW 370 VIEW 373 USER MANUAL...

Страница 2: ......

Страница 3: ...VIEW 370 VIEW 373 Particulate Measurement System USER MANUAL Publication Part Number PC 000855 MA...

Страница 4: ...revision or change Revised documentation may be obtainable from ENVEA ENVEA reserves the right without notice to make changes in equipment design or performance as progress in engineering manufacturin...

Страница 5: ...y Cable Specification 8 2 4 2 Data Cable Specification 8 2 5 PC Software Suite PC ME DUST TOOLS 9 3 SYSTEM DESCRIPTION ______________________________________ 10 3 1 Components 10 3 2 Sensor 10 3 3 Con...

Страница 6: ...________ 30 7 1 Introduction 30 7 2 Sensor Self Tests 30 7 2 1 Running Self checks Manually 30 7 2 2 Zero and Span Checks 31 7 2 3 Short circuit Check Contamination Check 31 7 2 4 Self test Values Pas...

Страница 7: ...Figure 3 Principle of operation ElectroDynamic sensors 11 Figure 4 Fitting the sensor to the stack example 15 Figure 5 Sensor PCB connections 17 Figure 6 ProController User interface with controls 20...

Страница 8: ...VIEW 370 373 viii PC 000855 MA Issue 6 December 2021 ENVEA UK Ltd This page is left blank intentionally...

Страница 9: ...Danger from Process The system may be connected to ducting that contains process particulate and other flue gas constituents hazardous to health This can take one or more of the following forms Parti...

Страница 10: ...on and must be connected to a protective earth connection GND WARNING This product must be connected to a power supply of the same voltage V and frequency Hz as indicated on the product rating plate a...

Страница 11: ...conductivity caused by condensation is expected Overvoltage Category II Overvoltage Category II is for equipment or instruments intended to be supplied from the building wiring It applies both to PLU...

Страница 12: ...e accessories spares and upgrade options for your instrument refer to the VIEW 370 373 datasheet and order information available on request and from the ENVEA UK website see the reverse of this manual...

Страница 13: ...uired outside this range Inspection frequency Every 6 months Environmental information Temperature range 20 to 50 C 4 to 122 F ambient 2 2 Sensor Specification VIEW 370 373 Sensor Sensor variants Stan...

Страница 14: ...A Cable type 4 core screen see the cable specifications below Other requirements Air Purge provision May be required on some applications contact ENVEA or your local ENVEA representative for further d...

Страница 15: ...A Control UnitC Standard Controller for single sensor systems ProController multiple sensors up to 32 channels Network Modules Analogue Output Module AOM 8x 4 20 mA 500 Auxiliary Input Module AIM 4x 4...

Страница 16: ...within a 2m 6 ft radius to allow the control unit to be switched off when at the unit The contact gap of the disconnect device must be at least 3mm For mains connections use an appropriate cable with...

Страница 17: ...XP or higher System memory 32 Mb RAM 20 Mb free hard disk space Monitor 1024 x 768 high colour graphics Data communication Serial port for connection to one or more instruments ProController only Eth...

Страница 18: ...long term data logging 3 3 Control Unit The VIEW 370 373 is powered via an ENVEA control unit supplying 24V DC The sensor can be interfaced with the Standard Controller for a single channel Standard...

Страница 19: ...atented by ENVEA whereby the collision and interaction of particles with the probe rod particle impingement causes a small electrical charge transfer to occur between the particulate and the probe rod...

Страница 20: ...along cable runs For large systems you may need to boost power using a PSU Repeater power supply unit see SYSTEM OPTIONS on page 7 for details 4 3 Prerequisites and Guidelines 4 3 1 Location Requireme...

Страница 21: ...y be fitted to a metal duct or stack If the stack is not metallic or you are concerned that the stack may not provide a suitably earthed shield for the sensor please contact ENVEA or your local ENVEA...

Страница 22: ...ss conditions are known to be entirely safe suitable precautions such as the use of breathing apparatus or duct purging detoxifying must be employed before any entry is made into the duct for installa...

Страница 23: ...Probe rod insulated version 7 Earth stud assembly 8 1 5 BSP socket 9 Stack duct wall Not shown Grounding strap attached to earth stud Figure 4 Fitting the sensor to the stack example 1 Drill a hole o...

Страница 24: ...put on the ground during maintenance without detaching 4 Insert the probe 6 into the socket and secure it with the floating nut 4 5 Ensure the sensor unit is upright with the cable entry glands at the...

Страница 25: ...connections 5 3 2 Electrical Connections Power Comms WARNING Hazardous voltages Ensure the sensor is not connected to the control unit power during wiring CAUTION The VIEW 370 373 sensor wiring order...

Страница 26: ...V Brown SCR Cable screen Before refitting the cover lid the sensor unit must be configured in accordance with the setup instructions provided in the following sections 5 3 3 Set Address Switch SW100 E...

Страница 27: ...N 6 4 3 on page 24 The default mode is ASCII 19200 Baud No Parity 1 Stop bit ASCII mode 7 bits The settings are shown in 1 below RTU is a faster communications protocol but is not available for all de...

Страница 28: ...r UI Figure 6 ProController User interface with controls Use the navigation and ENTER keys to select the required menu screen Five function keys are available for rapid menu access see SECTION 6 2 bel...

Страница 29: ...just a value incremental UP DOWN Use these buttons to modify values Select an entry value for example a digit for a password RIGHT Select a menu option Confirm entry applies and stores the chosen valu...

Страница 30: ...en saved SAVE YES OK Press for a positive response or to CONFIRM Refers to the current screen CANCEL NO BACK Press for a negative response or to QUIT the page Refers to the current screen 6 3 Main Men...

Страница 31: ...Main Setup screen access other functions and more sensor settings from this screen Date not selectable Display format dd mm yy set via main Setup screen Time not selectable Display format hh mm set v...

Страница 32: ...Reset deletes all settings and logged data Download the data to a PC using the ENVEA software tool before carrying out a system reset 1 Open the Setup menu screen 2 Select Other Functions Reset Functi...

Страница 33: ...Autodetect functionality or manually In Autodetect mode the control unit scans the Modbus addresses to identify all the sensors devices in the network Select Setup Autodetect to initiate the system sc...

Страница 34: ...r Setup section of the main Setup screen FIGURE 10 Figure 10 Setup screen Sensor system settings Advanced sensor device settings and additional sensors can be accessed by selecting Setup More Settings...

Страница 35: ...upplied with only the short term log enabled See below how to change the active log The long term log is only available on the VIEW 373 6 8 1 Adjusting Log Rates The Log Rates option allows the storag...

Страница 36: ...ress Cancel Refer to TROUBLESHOOTING on page 38 to diagnose the problem For sensors that do not need to download configuration settings a sensor channel will be added automatically to the Bar Graph Te...

Страница 37: ...Devices at Once For large systems it may be easier to set all sensor device settings to the same value at the same time 1 Select Setup More Settings Edit all devices 2 Select the parameter to be edit...

Страница 38: ...e sensor Scaling Obtain an average sensor reading to scale against an isokinetic sample result 7 2 Sensor Self Tests The QA Self Tests menu screen allows the status of self tests to be reviewed for ea...

Страница 39: ...s suggests the sensor may be physically damaged in some way 7 2 3 Short circuit Check Contamination Check The Short circuit check performs a basic test for contamination between the probe rod and the...

Страница 40: ...tests the communication between the control unit and a selected sensor automatically and should show OK at no loss If this test fails check the wiring between the control unit and the sensor Check th...

Страница 41: ...to health Unless the process conditions are known to be entirely safe suitable precautions such as the use of breathing apparatus or duct purging detoxifying must be employed before any entry is made...

Страница 42: ...or a sensor selected from a list of devices For a specific Sensor Device 1 Select QA Self Tests to display this screen see FIGURE 13 on page 30 2 Select the required channel from the Device drop down...

Страница 43: ...ction Sensor Status Enabled Maint Disabled Emission Alarms control unit relays and ROM devices Active Inactive Inactive Comms and Self test Alarms Active Active Inactive 4 20mA and AOM Outputs Active...

Страница 44: ...on the sensor rod This build up will normally not affect the instrument s performance but it is recommended that the build up is periodically removed If the probe rod requires cleaning remove the sens...

Страница 45: ...r unit to the ductwork ensure the lock nut is fully tightened 8 Ensure that the sealed connectors are secure and undamaged 9 Inspect the connecting cables where possible ensure that these are not dama...

Страница 46: ...ns Comms DIP switch settings Network address DIP switch settings NOTE To prevent bus conflicts each device must have a unique address Devices must not use address 0 8 5 2 Checking Network Spurs Where...

Страница 47: ...No Response message and not frozen see section above you can be confident this is a genuine reading from the sensor If it is not the reading expected consider the following Adjust the sensor sensitivi...

Страница 48: ...scaling factor is possible since the response of the instrument is directly proportional to the dust concentration over a predefined range Calculating the Scaling Factor The basic method to calculate...

Страница 49: ...return to the main menu Setting the Units to mg m 1 Select Setup More Settings Edit an existing device 2 Select the Device to be edited and adjust the Units Name using the arrow keys 3 Select Save to...

Страница 50: ...rd the Sensor Average 2 Obtain the isokinetic sampling test result 3 Calculate the Scaling Factor see CALCULATING THE SCALING FACTOR above Update the new Scaling Factor in the Control Unit 1 Select Se...

Страница 51: ...VIEW 370 373 Appendix B Menu Maps ENVEA UK Ltd PC 000855 MA Issue 6 December 2021 43 Appendix B Menu Maps Main Menu Screens Figure 17 Menu map Main menu screens and their icons...

Страница 52: ...Appendix B Menu Maps VIEW 370 373 44 PC 000855 MA Issue 6 December 2021 ENVEA UK Ltd Basic Sensor Setup Figure 18 Menu map Basic sensor setup...

Страница 53: ...VIEW 370 373 Appendix B Menu Maps ENVEA UK Ltd PC 000855 MA Issue 6 December 2021 45 More Sensor Settings Figure 19 Menu map More Settings menus...

Страница 54: ...Appendix B Menu Maps VIEW 370 373 46 PC 000855 MA Issue 6 December 2021 ENVEA UK Ltd Basic System Setup Figure 20 Menu map System setup menus...

Страница 55: ...VIEW 370 373 Appendix B Menu Maps ENVEA UK Ltd PC 000855 MA Issue 6 December 2021 47 Other Functions Figure 21 Menu map Other Functions menus...

Страница 56: ...Appendix B Menu Maps VIEW 370 373 48 PC 000855 MA Issue 6 December 2021 ENVEA UK Ltd Quality Assurance QA and Scaling Figure 22 Menu map QA and Scaling menus...

Страница 57: ...nt according to local government regulations RoHS Compliance Statement ENVEA UK Ltd is compliant with the EU Directive on the restriction of the use of certain hazardous substances in electrical and e...

Страница 58: ...equirements 12 M mains isolation device 2 8 Modbus address scanning 25 N network layouts 12 network spur 12 P PC ME DUST TOOLS software modules 9 pollution degree 3 power supply See PSU Repeater princ...

Страница 59: ......

Страница 60: ...local ENVEA representative for your country or region please contact us or visit our website at www envea global ENVEA UK Ltd ENVEA House Rose Crown Road Swavesey CAMBRIDGE CB24 4RB United Kingdom Te...

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