RAEGuard 2 PID Manual (European)
Contents
1. 1 2 Remove the Sensor Module and replace it with a new one a spare Sensor Module is included with the unit 3 Take the old Sensor Module to your shop service center to perform the rest of the activities which will refresh the Sensor Module and make it ready as a replacement spare Note Teflon UV Shields are available from RAE Systems in packages of 10 P N C01 2017 000 72 RAEGuard 2 PID User s Guide 4 Unscrew and remove all four of the gold plated contact legs 6 from the Sensor Module Use a small flat bladed screwdriver or similar tool to get between the Sensor Module and the Teflon UV Shield at the point nearest the shield s large notch and gently pry it up Work the blade or tool around the bottom of the Sensor Module lifting the Teflon UV Shield as you go around Once the Teflon UV Shield has been separated far enough from the Sensor Module to remove it use your fingers to pull it over the four contact legs and discard it med Discard the used Sensor Teflon Sheld 73 RAEGuard 2 PID User s Guide 8 Slide a new Teflon UV Shield over the contact legs and gently press it down until it is snug against the surface of the Sensor Module 9 Use your fingers to screw on the four contact legs y 10 Use a soft clean cloth to wipe any finger oils from the surface of the contact legs and set the Sensor Module aside 11 In2. RAE SYSTEMS RAEGuard 2 PID AM GRAIN UA il Ton pit M i User s Guide ISO 9001 amp CERTIFIED P N D03 4001 000 Rev D April 2012 RAEGuard 2 PID User s Guide Contents Section 1 RAEGuard 2 PID User s Guide 1 2 QN NM 4 VY 7 8 9 General ornato oeste mad oa E eae rustico tu el encased 2 General SpecilticatOA Sii 4 2 1 RAEGuard 2 PID Specifications 4 2 2 Proper Product Disposal At End Of Lafe 5 OD TATON tacos 6 Physical DesScEIDUOD peer or dodo tbc pn rho ite Feder op ode ts 7 Physical DIMENSIONS s epe dad isto sos 7 Installation And Access Instructions ssss 8 6 1 Mona dad TS 8 6 2 Instrument Disassembly ss 10 6 3 Electrical NAS nement 11 6 4 Wirmo PEO COU AA 12 6 5 Earth Grounding Instructions 13 6 5 1 External Earth Grounding 13 6 5 2 Internal Earth Grounding 13 6 5 3 Finished Grounding Wires 14 6 6 Alarm Contact Sc 14 Display And User Interface antaas 16 7 1 User Mier ACC a na noue 16 7 2 Maghek Ke y aa eolit tette 16 7 3 Using The Magnet Key seseesse 17 7 4 System Inma OM sii 17 7 5 Reading Display asociar Dc 17 7 6 Instrument Status Display 18 Navigating SAN a as 19 Progtammine MEUS it naar 29 Zero T resh CAD AO eem added t DRE 23
3. Tamb 55 C Um 28VDC Uo 5 91V U1 6 13V As demonstrated in the table above RAEGuard 2 and DigiPID have matching entity parameters which allows the two devices to be connected to form a single piece of equipment RAEGuard 2 PID with the resulting Ex specification given below suitable for installation in hazardous areas defined by zones as Ex d 1a IIC T4 Gb Resulting RAEGuard2 PID Ex specification Ex d ia IIC T4 Gb 20 C lt Tamb lt 455 C The marking is found on each of the two connected devices 49 RAEGuard 2 PID User s Guide RAEGuard 2 16 3 Scope The scope of this document is to identify the section of the RAEGuard2 controlled part of manual 16 4 Responsibility The included sections cannot be changed without prior approval from the Notified Body 16 5 Contents Below are the sections controlled by the Notified Body including all safety related information in the manual Controlled sections are I Warnings and directive information 2 Marking of RAEGuard2 3 Hazardous Location Classifications 4 Instructions for Safe Use 5 Connections and Ratings 6 Maintenance 7 Physical dimensions 50 RAEGuard 2 PID User s Guide 1 Warnings And Directive Information READ BEFORE OPERATING This manual must be carefully read by all individuals who have or will have the responsibility of using maintaining or servicing this product The product will perform as designed only if it is
4. The DigiPID is a pumped sensor The pump is in this version intended to pump the sample gas in though one of the DigiPID gas tubes and return it through the other 65 RAEGuard 2 PID User s Guide 21 Sensor Parts And Dimensions DigiPID sensor shown with optional mounting adaptor E Optional mounting adapter 8 pin interface connector Optional mounting adapter No Fastening nut oi dmn module INI KAN Teflon O ring Sensor detector Sensor cover with filter installed 66 RAEGuard 2 PID User s Guide 22 Operating the Sensor Module 22 1 Preparing The Sensor For Use Make sure the 8 pole input of the external intrinsically safe equipment matches the interface connector pinout configuration of the DigiPID Make sure the input power supply range is between 4 75V and 5 25V DC and the input current is about 200mA when the sensor module is operated The following mechanical drawing includes the sensor module interface connector s pinout The Ex entity parameter of the equipment connected to the DigiPID must fit the entity parameters of DigiPID according to intrinsically safe fitting rules 13 70 7 a 3 l Input Output dede 12 12 8642 Pinout 8 pin connector pinout configuration 1 Power in 2 CS Communication Select Select falling edge to start communication deselect rising edge to stop communication Analog Signal Output RXD Open Drain GND Control Signal Optio
5. known concentration calibration gas The RAEGuard 2 PID is calibrated using a two point calibration process First use a zero gas Then use a span gas containing a known concentration of a standard reference gas to set the second point of reference Note Zero calibration must be performed before span calibration RAEGuard2 PID connected to gas bottle To perform a calibration you need a cylinder of zero gas and a cylinder of span gas 39 10 1 RAEGuard 2 PID User s Guide Zero Calibration Connect the zero gas cylinder to the gas inlet IN port on the RAEGuard2 PID In measurement mode use the magnet key to press and then MODE in sequence Input your password followed by Password The instrument enters the calibration menu Press to enter the Calibration menu Press until Zero Fresh calibration 1s highlighted Calibration Zero Fresh calib Span calibration Press and this screen appears Please apply zero gas Start the gas flow 40 RAEGuard 2 PID User s Guide 7 Press A countdown screen is shown as the calibration is performed Zeroing 30 Note You may abort the calibration during the countdown by pressing If you stop the calibration the process stops and this screen is displayed before the menu screen is shown Zero aborted Zero is done Reading 0 0ppm 9 Ifthe calibration is not succes
6. when you are done Note If you set an invalid input value then it says Invalid input and this set of buttons is shown along the bottom of the display gt xX e Press MODE to go back and input a valid value e Press to exit back to the main menu without making a change 31 RAEGuard 2 PID User s Guide Ext Alarm Delay Advanced Mode In order to prevent false alarms you can set a delay time between when an alarm event occurs and when the RAEGuard 2 sends out the alarm signal up to 60 seconds If the alarm duration is less than the alarm delay setting then no relays will be triggered 1 Press repeatedly to select a desired number Numbers increase from 0 to 9 Once 9 1s reached pressing again wraps around back to 0 2 Press to advance to the next digit Repeat this process until all digits of the new value are entered 3 Press MODE to register the Ext Alarm Delay value 4 Press to save the value MODE to go back and edit the value or to cancel and return to the menu Note If you set an invalid input value then it says Invalid input and this set of buttons is shown along the bottom of the display gt xX e Press MODE to go back and input a valid value e Press to exit back to the main menu without making a change 32 RAEGuard 2 PID User s Guide 9 5 Monitor Setup This menu has sub menus for setting the date time and other parameters Mo
7. 6 months depending on use and exposure to gas and contamination 23 4 Replacing the Lamp And Filter The sensor module is shipped with the lamp sensor and stainless filter installed Periodically check the filter for dirt and contamination which can impact the reading and response time Note Always turn off power to the DigiPID before checking and servicing any parts After inspection and or replacement of parts recalibrate the instrument A The lamp and sensor are not interchangeable with parts from other manufacturers use only RAE Systems replacements Use of non RAE Systems components will void the warranty and can compromise the safe performance of this product Loosening the fastening nut allows the DigiPID to be easily detached from a base 70 RAEGuard 2 PID User s Guide AO Ee ring Inlet Outlet a IMPORTANT Align hole in filter with hole in top of l Filter PID sensor to ensure unobstructed Sensor sample flow Module IMPORTANT Only handle lamp PID Lamp by holding sides of end Do not touch flat surface Teflon O ring Housing T1 RAEGuard 2 PID User s Guide 24 Replacing The Sensor s Teflon UV Shield On the underside of the sensor module is a Teflon UV Shield that should be replaced every 90 days in order to ensure sensor accuracy 1 Dismantle the DigiPID as shown on page 70 and remove the Sensor Module Note Be careful to not touch the PID lamp s surface AMI
8. Guide 9 Programming Menus Programming allows anyone with the password to change the instrument s settings calibrate the instrument etc Depending on whether you use the Basic or Advanced Mode both of which have different passwords you can access different menus and submenus This table shows the menus and their icons and submenus Items marked with an asterisk are only available in Advanced Mode They are not available in Basic Mode 999 ppm Calibration Measurement Alarm Setting Monitor Setup Zero Fresh Meas Unit High Alarm Temp Unit Calibration pan Calibration Meas Range Set Span Value Meas Gas Ext Alarm Pump Duty Delay Pump Cycle Pump Status Bas Baudrate UU Analogou Ama PU jAndogou20m O Gn UU CD Const UU LCD Backlight Change Password 23 RAEGuard 2 PID User s Guide 9 1 Entering Programming Mode Enter Programming Mode by using the magnetic key to press these buttons in sequence 1 Press 2 Press 3 Press MODE The password screen appears with the cursor on the first digit Password Input the 4 digit password e Increase the number from 0 through 9 by pressing e Step from digit to digit using e Press MODE when you are done If you make a mistake you can cycle through the digits by pressing and then using to change the number in each position Note The default password for Basic Mode is 1111 The default pas
9. Inc 4 RAEGuard 2 PID User s Guide Section 1 RAEGuard 2 PID User s Guide RAEGuard 2 PID User s Guide 1 General Information The RAEGuard 2 PID is a fixed photoionization detector PID that measures a broad range of volatile organic compounds VOCs It operates on 10 to 28 VDC and provides an analog 4 20mA three wire signal output and RS 485 Modbus digital signal output RAEGuard 2 PID uses an intelligent processing platform and digital sensor technology supports multiple ranges and resolutions and can perform off line calibration and environmental self adaptation RAEGuard 2 PID has a graphic display and local sound alarm and light status indicator A magnetic key interface enables the detector to be calibrated and operational parameters adjusted with the explosion proof enclosure in place In addition the PID module can be easily removed in hazardous locations for calibration or maintenance Key features e Digital Smart Sensor Technology e Three wires supports 4 20mA analog output Can operate with diffusion and flow through modes and can be used in most environments RS 485 digital communication in ModBus protocol Explosion proof stainless steel enclosure for hazardous environment applications Magnetic key interface eliminates the need to open the explosion proof housing when adjusting parameters Matrix LCD of 128x64 supports graphic display Three level switch signal outputs normally closed normally open opti
10. Numbers increase from 0 to 9 Once 9 1s reached pressing again wraps around back to 0 2 Press to advance to the next digit Repeat this process until all digits of the new value are entered 3 Press MODE to register the Pump Duty value 4 Press to save the value MODE to go back and edit the value or to cancel and return to the menu Note If you set an invalid input value then it says Invalid input and this set of buttons is shown along the bottom of the display OD LX e Press MODE to go back and input a valid value e Press to exit back to the main menu without making a change 34 RAEGuard 2 PID User s Guide Pump Cycle s Advanced Mode This sets the length of time for one cycle of the pump running 1 Press repeatedly to select a desired number Numbers increase from 0 to 9 Once 9 1s reached pressing again wraps around back to 0 2 Press to advance to the next digit Repeat this process until all digits of the new value are entered 3 Press MODE to register the Pump Cycle s value 4 Press to save the value MODE to go back and edit the value or to cancel and return to the menu Note If you set an invalid input value then it says Invalid input and this set of buttons is shown along the bottom of the display gt x e Press MODE to go back and input a valid value e Press to exit back to the main menu without making
11. a change Pump Status Advanced Mode This tells you whether the pump should be on or off and allows you to set whether the pump is on or off Pump Status Pump On Pump Off IY Xj e Press to select On or Off the black dot in the circle indicates the selection e Press to make the change to your selection e Press MODE if you want to exit without making a change 35 RAEGuard 2 PID User s Guide Bus Baudrate Choose from three different baud rates for Modbus data transmission 4800 9600 or 19200 Press to place the cursor on the baud rate you want Press to make the selection Press MODE to save your selection Press to store the selection and exit the submenu and return to the Monitor Setup menu ede asd a Note If you do not want to save the change and want to make further changes press MODE Press to exit without saving the changes Analogout 4mA This feature sets the analog output to 4mA for system setup and troubleshooting Press repeatedly to select a desired number Numbers increase from 0 to 9 Once 9 1s reached pressing again wraps around back to 0 2 Press to advance to the next digit Repeat this process until all three digits of the new value are entered 3 Press MODE to save the 4mA analog output value Analogout 20mA This feature sets the analog output to 20mA for system setup and troubleshooting 1 Press repeatedly to
12. mm cross section Crimped terminal 6 5 2 Internal Earth Grounding Use the same hardware as shown in the illustration of external earth grounding The wire should be no less than the size of the power lines signal grounding can connect to a cable s shielding layer if shielded cable is used If a separate wire 1s used for grounding its cross section should be greater than that of the power line Internal earth grounding 13 RAEGuard 2 PID User s Guide 6 5 3 Finished Grounding Wires Internal and external grounding are shown here as well as an alternate external grounding point Always follow local electrical guidelines External earth Alternate grounding earth grounding point Internal earth grounding 6 6 Alarm Contact Setup The alarm contacts can drive external alarms such as a light or buzzer By default the three relays are set for normally open NO operation meaning that contact is closed when in alarm You can separately change each relay from normally open to normally closed NC operation by changing the position of the jumpers on the internal printed circuit board 14 RAEGuard 2 PID User s Guide Three jumper blocks are located below the three green terminal blocks They are labeled from left to right J4 J3 and J1 Here are their functions Jumper Function Tq o 4 5 7 8 9 f M NP pessum um ERR lO HIGH OW OUT GND WV Jumper blocks J4 J3 J
13. of EN 60079 14 6 1 Mounting First decide where the transmitter will be mounted Refer to installation drawing below Drill two holes in mounting surface with the center of the holes 5 25 133mm apart 5 25 133 mm Besides directly mounting the RAEGuard 2 PID to a wall it can be mounted on a pipe RAEGuard 2 PID User s Guide Note When installing the RAEGuard 2 PID make sure the sensor is vertically oriented pointing straight down Also make sure the water trap filter is connected to the gas inlet labeled IN the longer of the two inlets RAEGuard 2 PID User s Guide 6 2 Instrument Disassembly Prior to service Make sure power 1s OFF Observe all Hazardous Location Safety procedures ba Con fastening noli 3 Tilt the instrument assembly before unscrewing the 90 housing lid Unscrew the housing lid from the housing body by rotating it counter clockwise As shipped one of the conduit holes is covered by the provided hex head plug The other conduit is for wire connections 4 Unlock the 24 pin connector on the ribbon cable 5 Lift the entire instrument assembly out of the housing 6 Unscrew the sensor by turning it counterclockwise Disassembled instrument 2 Pull off the retaining clip to release the instrument assembly 10 RAEGuard 2 PID User s Guide To reassemble the instrument 1 Un amp lo Y QM Reconnect the 24 pin connector of the ribbon
14. select a desired number Numbers increase from 0 to 9 Once 9 1s reached pressing again wraps around back to 0 2 Press to advance to the next digit Repeat this process until all four digits of the new value are entered 3 Press MODE to save the 20mA analog output value 36 RAEGuard 2 PID User s Guide Unit ID When using Modbus communication you can give each RAEGuard 2 PID on a network a unique Unit ID that helps identify it 1 Press repeatedly to select a desired number Numbers increase from 0 to 9 Once 9 1s reached pressing again wraps around back to 0 2 Press to advance to the next digit Repeat this process until both digits of the new value are entered 3 Press MODE to save the 20mA analog output value LCD Contrast The display s contrast can be increased or decreased from its default setting You may never need to change the default setting but sometimes you can optimize the display to suit extreme temperature and ambient brightness darkness conditions 1 Press to step through the contrast levels The range is 1 to 99 Once 99 is reached pressing again wraps around back to 10 2 When you have completed your selection press MODE 3 Press to save your selection and exit LCD Contrast Note If you want to make further changes press MODE to return to the adjustment screen Press to exit without saving the changes LCD Backlight The backligh
15. settings clear the Peak and Minimum readings and perform a test of the Analog system without entering Programming Mode At the main reading screen hold the magnetic key over for two seconds The RAEGuard 2 screen changes to show the current peak value in memory Clear gt e If you do not want to clear the peak value press e To clear the peak value reset it press This screen appears Clear Peak Yes No e If you do not want to clear the peak value press The screen advances to Min Clear e To confirm that you want to clear the peak value reset it press The value is cleared and this screen is shown Peak Cleared Lo Advance to the next screen Min value by pressing 19 RAEGuard 2 PID User s Guide Clear gt e If you do not want to clear the minimum value press e To clear the minimum value reset it press Clear Min Yes No e If you do not want to clear the minimum value press The screen advances to Min Clear e To confirm that you want to clear the minimum value reset it press The value is cleared and this screen is shown Min Cleared L O VEA Press to advance to the screen showing the measurement gas calibration gas correction factor CF and molecular weight MW of the gas M Gas Isobutylene C Gas Isobutylene CF 1 0 MW 56 1 20 RAEGuard 2 PID User s Guide P
16. used maintained and serviced in accordance with the manufacturer s instructions CAUTION A To reduce the risk of electric shock turn the power off before removing the instrument cover Disconnect the power before removing the sensor module for service Never operate the instrument when the cover is removed Remove instrument cover and sensor module only in an area known to be non hazardous 91 RAEGuard 2 PID User s Guide 2 Marking Of RAEGuard 2 The RAEGuard 2 1s certified according to ATEX and the IECEx schemes as protected by a flameproof enclosure provided one or two associated equipment output port protected as intrinsically safe 1a one of which can include a set of flame arrestors for gas sampling The product is marked with the following information RAE Systems Inc 3775 N Ist St san Jose CA95134 USA Serial number XXXXXXXXXX RAEGuard 2 FGM 2XXX IECEx ATEX IECEx ITS 11 0005X ITS 11ATEX17231X Ex d ia Ga IIC T4 Gb 0575 II 2 1 G Ex d ia Ga IIC T4 Gb 20 C Tamb 55 C Um 28VDC Uo 5 91V Co 30uF Lo 55uH Io 0 8A Po 1 16W Year of manufacture XXXX WARNING DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE MAY BE PRESENT REFER TO USER MANUAL FOR ENTRY TYPE AND SIZE RATING x 5W 10 28VDC 4 Hazardous Location Classification Hazardous Areas Classified By Zones RAEGuard 2 are intended to be used in hazardous areas classified for zone or zone 2 within the temperature range o
17. 1 Lift off the jumper for each one that you want to change and slide it back on either connecting the middle and top points or middle and bottom points Closed Important Once the system is operational test the functionality of all three relays 15 RAEGuard 2 PID User s Guide 7 Display And User Interface 7 1 User Interface The RAEGuard 2 PID s user interface consists of a status LED an LCD display and three keys MODE and The three keys are operated by using the Magnet Key STATUS RAEGuard 2 PID user interface 7 2 Magnet Key The RAEGuard 2 PID has no external switches but instead uses the magnetic end of the RAEGuard Magnet Key p n 033 3032 000 to activate switches built into the unit Magnet EE 16 RAEGuard 2 PID User s Guide 7 3 Using The Magnet Key Using the magnet end of the Magnet Key briefly touch the glass above the MODE circle or the triangles labeled and Then remove the key straight out and away from the RAEGuard 2 PID RAEGuard Magnet Key touching glass above the triangle Important Never drag the key sideways or two functions may be activated 74 System Initialization When the RAEGuard 2 PID s system power is turned on it initializes and a RAE Systems logo appears on the display As the transmitter is warming up each component is checked The countdown timer appears on the screen for the warm up 7 5 Reading Display As the t
18. 2 within the temperature range of 40 C to 55 C where gases of explosion groups IIA IIB or IIC and T4 may be present Hazardous Areas classified by Divisions DIGI PID is intended to be used in hazardous areas classified for Class I Div 1 or 2 within the temperature range of 40 C to 55 C where gases of explosion groups A B C or D and temperature class T4 may be present 17 3 Instruction For Safe Use Strictly follow the instructions for safe use Application of the DigiPID requires full understanding and strict observation of the instructions The DigiPID can be connected to Ex certified equipment for use in hazardous areas when it is secured that the connection is complying with the intrinsically safe input entity parameters for the two units and the intended function area corresponds to the certified area The DigiPID sensor can be connected and disconnected inside the hazardous area 60 RAEGuard 2 PID User s Guide 17 4 Use In Hazardous Areas Equipment which is intended for use in explosive atmospheres and which has been assessed and certified according to international regulations may be used only under specified conditions The components may not be modified in any way The appropriate regulations for service and repair must be properly observed during such activities 17 5 Year of manufacture To identify the year of manufacture refer to the serial number of the instrument The second to last dig
19. 971 4 887 5562 Email mesales raesystems com RAE Systems Hong Kong Ltd Room 8 6 F Hong Leong Plaza 33 Lok Yip Road Fanling N T Hong Kong Phone 852 2669 0828 Fax 852 2669 0803 Email hksales raesystems com 81 RAEGuard 2 PID User s Guide RAE Systems Japan Marunouchi Nakadori Bldg 6F 617 B 2 3 Marunouchi 2 Chome Chiyoda ku Tokyo 100 0005 Japan Phone 8 1 3 6269 9646 Fax 81 3 6269 9647 Email jpsales raesystems com RAE Systems Korea 1010 DaeMyungAnsVill First sang Dong 412 2 Wonmi Gu Bucheon Kyungki Do Korea Phone 82 32 328 7123 Fax 82 32 328 7127 Email krsales raesystems com 82 SY S TE MS RAE Systems World Headquarters 3775 N First St oan Jose CA 95134 1708 USA Phone 408 952 8200 Toll Free 888 723 4800 Fax 408 952 8480 E mail sales support raesales raesystems com Web Site www raesystems com Technical Support Phone 408 952 8461 Mon Fri 7AM 5PM PST Email tech raesystems com Product Registration www raesystems com support product registration RAE Systems Europe Kirstinehoj 23A DK 2770 Kastrup Denmark Tel 45 8652 5155 Fax 45 8652 5177 Web www raesystems eu Email sales raeeurope com RAE Systems Hong Kong Ltd Units 1516 18 15 F Delta House 3 On Yiu Street Shatin N T Hong Kong Web www raesystems hk Email asiasales raesystems com Phone 852 2669 0828 RAE Systems Middle East LOB 7 Ground Floor Office 19 Je
20. MEAN oco AA AA C e e EDU 23 A oe ti ede nb AA eid cde tie 23 TEN Md ne 23 Span CANNON AA AE 25 MA OPE aman M tmd anne dM 23 ON AI eect RM 23 Lan CUA CG o io anio 23 10 RAEGuard 2 PID User s Guide SE LIPA Valle sr decirle drive E Petite leu E WAC AS OAS tendunt ee ed md ion Ex Alarm Delay os Pump DUY A unitis aaa eit eaae em baa Calbraton as iii PUD yele ia e ste Pump atascos B s Ba drale cata ZADalosOUE AMA ANNA NG tut REID N net ANAlOSOUE 20MA ANA NAA LED Backi Diria elias Change PassWord ta aa 9 1 Entering Programming Mode 9 2 Call DI ALI ON EE NANA 9 3 Measurement Advanced Mode 9 4 Alimi SOLD B oo A 9 5 NORTON CaM DEAU ON SES nue nine nier IOL Zero Calibracion eoi erroe ation 10 2 Span Cabra dese on dete desde Alarm Signal Summary esses IMatnitefidl 8 eei pls AA AA TtoubleshoOLUllie ioci opp ANNA Appendix A Range Sensor and Related BA ANN obuiam etis ModBus RS 485 Information Appendix B Controlled Section OL voor 10 2 COMEDIES irrita iuste doge tu Le puede i lOS SCODE ama set idus uta Vae d qus t64 Responsibility Li siete S ance dese Kano CONEIS enana inline RAEGuard 2 PID User s Guide Section 2 DigiPID User s Guide Sake DAUNGAN oo n SO eai aucta cei ea Tes Re uto ded 17 24 25 26 2 28 Read Before Operating saisies LL Disi
21. Of Life This symbol crossed out wheeled bin indicates separate collection of waste electrical and electronic equipment in the EU countries This product may contain one or more Nickel metal hydride NiMH Lithium ion or Alkaline batteries Specific battery BEEN information is given in this user guide RAEGuard 2 PID User s Guide 3 Operation The calibration of all newly purchased RAE Systems instruments should be tested by exposing the sensor to a known concentration calibration gas before the instrument is used or put into service Prior to factory shipment the RAEGuard 2 PID is calibrated and tested However the user should calibrate the instrument before the first use Kit Accessories include RAEGuard 2 Magnet Key and User s Guide RAEGuard 2 PID User s Guide 4 Physical Description The RAEGuard 2 PID can be easily installed and integrated with various control systems It is designed with flexible pipe holding wall mounting options and standard connection terminals 5 Physical Dimensions The physical dimensions are as shown 107mm 4 2 aa 201mm 7 9 me KON 2 p pi 8 RAEGuard 2 PID User s Guide 6 Installation And Access Instructions WARNING To prevent ignition of hazardous atmospheres area must be free of flammable vapors and supply circuit must be disconnected before removing cover For European application the installation must comply with the requirements
22. PID Mariano tia 17 2 Operation Area and Conditions 17 2 1 Hazardous Areas classified by Zones Hazardous Areas classified by Divisions 17 9 Instruction For Safe Use iii 17 4 Use In Hazardous Areas noeesseeeeeessssssseeeeeees Mie XearoLbmanurdctute x ee irae etal 170 lt SPECCIICATONS onenen qut oec p Em orna General Inforo sitiada aliadas Grounding Earth Connection Physical D scriplO a ocior en tu muet Sensor Parts And Dimensions eseese Operating the Sensor Module 22 Preparing The Sensor For Use Using The Sensor Module ui 23 1 Gas Flow Routing Connection 23 2 Sensor Module Calibration 23 3 Maintenance And Calibration 23 4 Replacing the Lamp And Filter Replacing The Sensor s Teflon UV Shield Sensor amp Lamp Cleaning Replacement 25 1 Cleanine The PID Sensof 5 ovi etn ten 25 2 Cleaning The Lamp Housing Or Changing 25 3 Cleaning The Instrument 000oeeeeeesessseeoeeeeesss 25 4 Ordering Replacement Parts 25 9 special Servicing Noticia div Technical Supporteren es eat RAE Systems Contacts il aaa RAEGuard 2 PID User s Guide Copyright 2012 RAE Systems
23. User s Guide 2 Data Structure Communication Steps RAEGuard 2 PID only supports Function Code 0x03 read only registers The detector only supports value reading 0x03 Read Only Register Requesting Message Register Register Quantity Quantity CRC CRC Low High Function Byte Register Value CRC CRC Address Code Count Low High Byte Byte RC Client ID 03 04 Reading Reading Reading Reading C CRC Highest Higher High Low Byte Byte Byte Byte Note The length of data from the detector is 4 bytes Example Request 01 03 00 08 00 02 45 C9 Answer 01 03 04 00 00 00 Di 3A 6F Note The maximum communication distance should be less than 1 km when using a 1 5 mm cable 47 RAEGuard 2 PID User s Guide 16 Appendix B Controlled Section RAEGuard 2 And DigiPID 16 1 Scope The scope of this document is to describe the system aspects for use of the RAEGuard 2 PID by connection of the RAEGuard2 and DigiPID according to EN60079 25 UL913 and CAN CSA C22 2 No 157 92 in hazardous locations 16 2 Contents RAEGuard 2 Associated Associated ia output output Pros DIGIPID PID axe Intrinsically safe ia PID RAEGuard2 DIGI PID emen certification certification P ATEX IECEXx certification for zones ITS KEMAIOATEXO0059 II ATEX17231X 11 0005X 10 0005 T4 Gb b Ga Gb lt Ga UL CSA certification for Divisions 48 RAEGuard 2 PID User s Guide CIDI CIDI 40 C
24. ailed message check that the inlet 1s not blocked the sensor or lamp are not fouled or damaged and there are no other problems before retrying 43 RAEGuard 2 PID User s Guide 11 Alarm Signal Summary The following are reading related alarms Normal Da GO al dz k de Calibration Failure Error y N N O0 Wer a Sensor Error e v 44 Failure Disable Low alarm Disable High alarm Disable Failure Disable Low alarm Enable High alarm Enable Failure Disable Low alarm Disable High alarm Enable Failure Disable Low alarm Disable High alarm Enable Failure Enable Low alarm Disable High alarm Disable Failure Enable Low alarm Disable High alarm Disable Failure Disable Low alarm Disable High alarm Enable Failure Enable Low alarm Disable High alarm Disable Failure Enable Low alarm Disable High alarm Disable Failure Disable Low alarm Disable High alarm Disable RAEGuard 2 PID User s Guide 12 Maintenance As a guide it is recommended to regularly bump test a RAEGuard 2 PID unit with a known percentage gas Also periodically check the sensor inlet and outlet to make sure they are clean and unobstructed 13 Troubleshooting Note Before attempting to diagnose measurement problems perform zero and span calibrations Messag Reason and Solution P e Reason Instrument over range 999 Jove Solution Confirm
25. ave your choice by pressing MODE Note Whenever you change the calibration gas type you must set the span value 9 3 Measurement Advanced Mode Measurement settings allow you to set measurement units range gas and other parameters Measurement Meas Unit Advanced Mode Standard available measurement units include Abbreviation parts per million milligrams per cubic meter 27 RAEGuard 2 PID User s Guide 1 Press to move the cursor from ppm to mg m3 or cycle through them 2 Press to register your choice 3 Press MODE to save the selection 4 Press to save the Measurement Unit MODE to return to editing it and to cancel the change The new Measurement Unit is saved and the RAEGuard 2 PID exits back to the Monitor Setup menu Meas Range Advanced Mode Each sensor head has a maximum range for its sensor for instance 100 ppm However if you want to increase sensitivity in a lower range it is possible to change the measurement range from the preset 100 ppm to 60 ppm for example Meas Range 00k1000 00ppm Press to increase the number from 0 to 9 it wraps around to O again after 9 2 Press to step through digits 3 Press MODE to save the new value If you have set a value that 1s within range then you see this screen e Press to save the new value e Press MODE to go back and edit it again e Press to exit withou
26. bel Ali Free Zone Dubai United Arab Emirates Email mesales raesystems com Phone 971 4 887 5562 P N D03 4001 000 Rev D April 2012
27. cable and lock it in place Fasten the cable to the board Mate the board with the clip on the left side and tilt it over Click the board into place Screw on the sensor making sure not to block the gas inlet hole and connectors Screw on the housing top Screw down the fastening bolt 6 3 Electrical Wiring The detector connects to peripheral equipment via three terminal blocks These blocks accept 12AWG to 24AWG wire 0 2 to 4 0 2 mm e eee Terminal blocks 11 RAEGuard 2 PID User s Guide 6 4 Wiring Procedure 1 Inside the housing bottom unplug the two green terminal block plugs from the terminal block on the PC boards Note The terminal block plugs accept 12 AWG to 24 AWG wire 1 2 3 4 O D JT AAA AI ssss lsss ss ERR LO HIGH COM OUT GND V 485A 485B co wo 2 Lace the wires through the RAEGuard 2 PID s wire hole s and connect wires to the corresponding pin numbers of the terminal blocks Terminal Terminal Definition Failure Alarm Contact Low Level Alarm Contact Block 1 Power Supply Negative Power Supply Positive RS485A terminal Block 3 RS485B terminal 12 RAEGuard 2 PID User s Guide 6 5 Earth Grounding Instructions 6 5 1 External Earth Grounding Fasten the crimped ground wire with hardware as illustrated below The wire should have a minimum cross section area of 4mm for its conductor M4 Screw M4 Split washer MA flat washer N Wire Min 4
28. e 1 408 952 8200 Fax 1 408 952 8480 E mail customerserv raesystems com Web Site www raesystems com RAE Systems Technical Support Monday through Friday 7 00AM to 5 00PM Pacific Time Phone 1 408 952 8461 Email tech Oraesystems com Life critical after hours support 1s available 1 408 952 8200 select option 9 79 RAEGuard 2 PID User s Guide RAE Systems Europe ApS Kirstinehg 23 A DK 2770 Kastrup Denmark Phone 45 86 52 51 55 Fax 45 86 52 51 77 orders raeeurope com sales raeeurope com service Oraeeurope com Web www raesystems eu RAE Systems UK Ltd D5 Culham Innovation Centre Culham Science Centre Abingdon Oxon OX14 3DB United Kingdom Phone 444 1865408368 Fax 44 1235531119 Mobile 44 7841362693 Email raeuk raeeurope com RAE Systems France 336 rue de la f e des eaux 69390 Vernaison France Phone 33 4 78 46 16 65 Fax 33 4 78 46 25 98 Email info france raeeurope com Web www raesystems fr 80 RAEGuard 2 PID User s Guide RAE BeNeLux BV Rijndal 20 2904 DC Capelle a d IJssel Phone 31 10 4426149 Fax 31 10 4426148 Email info rae nl Web www rae nl RAE Systems Spain s l Av Remolar 31 08820 EI Prat de Llobregat Spain Phone 34 933 788 352 Fax 434 933 788 353 Mobile 34 687 491 106 Email mdelgado raespain com Web www raespain com RAE Systems Middle East LOB 7 Ground Floor Office 19 Jebel Ali Free Zone Dubai United Arab Emirates Phone
29. e it e Press to select your choice and advance to its submenu 29 RAEGuard 2 PID User s Guide Then follow the steps for the type of selection group you have chosen Last Ten 1 Step through the list s gases by pressing 2 Register your selection by pressing 3 Save your choice by pressing MODE Gas Library 1 Step through the list s gases by pressing 2 Register your selection by pressing 3 Save your choice by pressing MODE 30 RAEGuard 2 PID User s Guide 9 4 Alarm Setting During each measurement period the gas concentration is compared with the programmed high and low gas concentration alarm limits If the concentration exceeds any of the preset limits the alarms and relays are activated immediately to warn of the alarm condition An alarm signal summary is shown in the Instrument Status Display table on page 44 In this menu you can change the High and Low alarm limits Press Y to enter the Alarm Setting menu Note All settings are shown in ppm parts per million Alarm Setting Select High or Low Alarm by pressing Press to select edit that alarm s setting The display shows a flashing cursor on the left most digit of the previously stored alarm setting Press to increase each digit s value Press to advance to the next digit Again use to increase the number NO all a Repeat this process until all numbers are entered Press MODE
30. f 20 C to 55 C Where gases of explosion groups IIA IIB or IIC and T4 may be present 92 RAEGuard 2 PID User s Guide 5 Instructions For Safe Use It must be ensured that the supply voltage for RAEGuard 2 comply with the Um input entity parameter The 8 pin output interface connector facilitates connection to intrinsically safe equipment e g sensors or modems The connected devices must be protected by intrinsically safety ia ib or ic for gases in group ITA IB or IIC The connected device must have entity parameters that comply with general fitting rules for entity parameters with the output entity parameters of the RAEGuard 2 interface The DigiPID sensor can be mounted on the on the RAEGuard 2 interface inside hazardous are in powered condition This constellation is called RAEGuard 2 PID 6 Connections And Ratings Outline drawing of the interface 1 7 In Figure1 Output interface port definition The pin definition of the 8 pin output connector is given in the table below PinNo 1 2 3 4 5 6 7 8 Definition POWET cg Analog py OPEN GND cn TxD Out Single Drain 53 RAEGuard 2 PID User s Guide Input output entity parameters The rated RAEGuard2 input output parameters are as follows Input Um 28VDC Output Uo 5 91V Co 30uF Lo 55uH Io 0 8A Po 1 16W Cable Entry type and Size RAEGuard2 is provided with three female 3 4 14 NPT cable entry holes tapped into
31. here as well as an alternate external grounding point Always follow local electrical guidelines M4 Screw M4 Split washer M4 flat washer Wire Min 4 mm cross section Crimped terminal Internal earth grounding External earth Alternate grounding grounding point Internal earth grounding As are not interchangeable use only RAE Systems sensors and use only the sensor type specified for your RAEGuard2 monitor Use of non RAE Systems components will void the warranty and can compromise the safe performance of this product 55 RAEGuard 2 PID User s Guide 9 Physical Dimensions RAEGuard 2 can be easily installed and integrated with various control systems with its flexible pipe holding wall mounting options and standard connection terminals The physical dimensions are as follows 112mm 56 RAEGuard 2 PID User s Guide SECTION 2 DigiPID User s Guide 57 RAEGuard 2 PID User s Guide SAFETY INSTRUCTIONS 17 Read Before Operating This manual must be carefully read by all individuals who have or will have the responsibility of using maintaining or servicing this product The product will perform as designed only if it is used maintained and serviced in accordance with the manufacturer s instructions The user should understand how to set the correct parameters and interpret the obtained results CAUTION Sensor interface connector pins cannot be interchanged for multiple a
32. it in the serial number indicates the year of manufacture For example H indicates the manufacturing year is 2008 61 RAEGuard 2 PID User s Guide 17 6 Specifications 110 mA max Resolution 10 ppb 100 ppb 1 ppm depends on model Response Time Diffusion Top 30 s Pumped Too 5s Calibration Accuracy Zero Drift 10 FSS Month 10 FSS Month Analog Output 0 5 2 5V ro 1 0k Digital Interface Serial Interface UART Transmit Tx 3 3V TTL Receive Rx 3 3V TTL Sensor Lifetime Operating 20 C to 455 C 4 F to 4131 F Temperature Humidity EMI RFI Highly resistant to EMI RFI Compliant with EMC Directive 2004 108 EC Package Rugged case for 1 2m drop test Spray watertight for IP65 rating Dust membrane for sensor front protection Size DxL 49mm x 150 8mm 1 92 x 5 94 Weight 550g 19 4 oz Ex entity parameters Pi 1 225W Vi 6 13V Ci 20 2uF Ii 1 5A Li 1uH 62 RAEGuard 2 PID User s Guide 18 General Information The DigiPID Sensor is a self contained intelligent sensor module with built in photoionization detector PID sensor processor lamp driver and analog and digital interface circuits It is designed to detect volatile organic compounds VOC and has a standard external interface This sensor module can be easily integrated into a wired or wireless communication system for remote wide area and pervasive monitoring applications The sensor module can be powe
33. its side walls One or two of these three cable entries are mounted with safety adapter interface type ISA 100 ISA 101 7 Maintenance Calibration The monitor should be calibrated for no less than every 6 months depending on use and exposure to gas and contamination Calibration interval may very due to national legislation RAE Systems recommend the use of RAE Systems calibration gas Installation and Access Instructions e When used in North America conduit runs must have a sealing fitting connected within 18 457mm of the enclosure CSA requires seals in conduit exceeding 5 1 524 m in Group C atmospheres e The appropriate regulations for installation service and repair must be properly observed during such activities Installation in ATEX IECEx area must be done as outlined in EN IEC 60079 14 e To prevent ignition of hazardous atmospheres area must be free of flammable vapors and supply circuit must be disconnected before removing cover 54 RAEGuard 2 PID User s Guide 8 EARTH GROUNDING INSTRUCTIONS External Earth Grounding Fasten the crimped ground wire with hardware as illustrated below The wire should have a minimum cross section area of 4mm for its conductor Internal Earth Grounding Use the same hardware as shown in the illustration of external earth grounding The wire should be no less than the size of the power lines Finished Grounding Wires Internal and external grounding are shown
34. local RAE Systems distributor A list is available online http www raesystems com In the U S you can order sensors replacement batteries and other accessories online at http istore raesystems com 25 5 Special Servicing Note If the instrument needs to be serviced contact either 1 The RAE Systems distributor from whom the instrument was purchased they will return the instrument on your behalf Or 2 The RAE Systems Technical Service Department Before returning the instrument for service or repair obtain a Returned Material Authorization RMA number for proper tracking of your equipment This number needs to be on all documentation and posted on the outside of the box in which the instrument is returned for service or upgrade Packages without RMA Numbers will be refused at the factory 17 RAEGuard 2 PID User s Guide 26 Electronic Waste Disposal At the end of its life this product must undergo separate collection and recycling from general or household waste 78 RAEGuard 2 PID User s Guide 27 Technical Support To contact RAE Systems Technical Support Monday through Friday 7 00AM to 5 00PM Pacific US Time Phone toll free 1 888 723 4800 Phone 1 408 952 8461 Email tech raesystems com Life critical after hours support 1s available 1 408 952 8200 select option 9 28 RAE Systems Contacts RAE Systems World Headquarters 3775 N First St San Jose CA 95134 1708 USA Phon
35. nal TXD Note Some external equipment requires no connection to pins 5 and 7 67 RAEGuard 2 PID User s Guide 23 Using The Sensor Module 23 1 Gas Flow Routing Connection The DigiPID has an IN and OUT port for sampling gas Make sure that the in and out sample tubes are properly oriented After making all gas connections and ensuring connection to the 8 pin connector turn on the power supply and warm up the sensor module Note A two hour warm up time is recommended before making measurements Firmly affix the sensor module to external equipment and make sure the 8 pole interface connector makes a reliable tight connection with other equipment When you begin measurement the sensor provides data to external equipment showing the current concentration of the specified gas Data is output digitally via the UART port or as an analog signal 0 5V to 2 5V from pin 3 of the interface connector The sensor module can be calibrated for different operations and gases If the DigiPID sensor is connected to RAE Systems equipment you can affix the sensor module directly to the equipment and then turn on the instrument s power supply The sensor module runs normally If the other external equipment is not a RAE Systems product additional firmware and software support is necessary RAE Systems can provide essential information such as the handshaking protocol port setting flow rating etc 68 RAEGuard 2 PID User
36. nitor Setup Temp unit Set the temperature units to either Fahrenheit or Celsius Press to place the cursor on the temperature unit you want Press 4 to make the selection 3 Press 4 to save your selection exit the Temp unit submenu and return to the Monitor Setup menu Note If you do not want to save the change and want to make further changes press MODE Press to exit without saving the changes Language Choose from English or Chinese Press to place the cursor on the language you want 2 Press 4 to make the selection 3 Press MODE to save your selection exit the Language submenu and return to the Monitor Setup menu Pump Duty Jo Advanced Mode The pump s duty cycle is the ratio of its on time to off time The duty cycle ranges from 50 to 100 always on and the period is 10 seconds Therefore a duty cycle of 6096 means that the pump is on for 6 seconds and off for four seconds RAE Systems patented duty cycling is employed by the instrument to clean the PID A lower duty cycle has a greater effect on keeping the PID clean than a higher duty cycle Important Pump duty cycling is interrupted when the instrument senses a gas The pump s duty cycle 1s disabled when the 33 RAEGuard 2 PID User s Guide measurement is greater than the 2ppm threshold and is re enabled when the reading falls below 90 of the threshold 1 8 ppm 1 Press repeatedly to select a desired number
37. onal 30V load voltage 2A LED alarms when High or Low alarm point is reached Operation at 10 to 28 VDC Three dry contacts 30V 2A normally open or normally closed one for High and Low alarm another for Fault alarm RAEGuard 2 PID User s Guide Applications e Refineries petrochemical and natural gas plants e Metallurgical e Chemical medication e Environmental protection e Electricity communications e Fire protection e Utilities e Pulp and paper printing e Storage e Sewage disposal e Food brewing e Scientific research education homeland security Hazardous Location Classification ATEX II 2G Ex d ia II CT4 Gb UL CSA Class I Div 1 Groups A B C D T4 IECEx Ex d ia IIC T4 Gb RAEGuard 2 PID User s Guide 2 General Specifications 2 1 RAEGuard 2 PID Specifications e 4 20mA e Three level programmable alarm relays 30 VDC 2A e RS 485 Supports Modbus IP Rating IP 65 Mechanical 3 4 NPT Male Interface Temperature 20 C to 4 55 C 4 F to 131 F 128x64 matrix backlit LCD supports eraphic Display display O Output RAEGuard 2 PID User s Guide RAEGuard 2 PID Specifications continued Physical Parameters Dimensions 257 x 201 x 107 mm LxWxH 10 1 x 7 9 x 4 2 Weight 3 5 kg 7 7 Ibs ATEX II 2G Ex d ia II CT4 Gb UL CSA Class I Div 1 Groups A B C D T4 IECEx Ex d ia IIC T4 Gb Ex Entity Um 28VDC input supply Parameters 2 2 Proper Product Disposal At End
38. ouch the Teflon portions and that they are parallel to each other Make sure that the nuts on the sensor pins are snug but not overtight If the sensor is corroded or otherwise damaged it should be replaced 75 RAEGuard 2 PID User s Guide 25 2 Cleaning The Lamp Housing Or Changing The Lamp If the lamp does not turn on the instrument will display an error message to indicate replacement of the lamp may be required l If the lamp is operational clean the lamp window surface and the lamp housing by wiping it with GC grade methanol using a cotton swab using moderate pressure After cleaning hold the lamp up to the light at an angle to detect any remaining film Repeat the process until the lamp window is clean Never use water solutions to clean the lamp Dry the lamp and the lamp housing thoroughly after cleaning CAUTION Never touch the window surface with the fingers or anything else that may leave a film Never use acetone or aqueous solutions If the lamp does not turn on remove the lamp from the lamp housing Place the lamp O ring onto the new lamp Insert the new lamp avoiding contact with the flat window surface 3 Reinstall the PID sensor module 4 Tighten the sensor cover 76 RAEGuard 2 PID User s Guide 25 3 Cleaning The Instrument Occasional cleaning with a soft cloth is recommended Do not use detergents or chemicals 25 4 Ordering Replacement Parts If you need replacement parts contact your
39. pplications Apply the sensor in accordance with connector definitions described in the datasheet and in accordance with the general fitting rules for the applied intrinsically safe entity parameters Use only RAE Systems lamps and the sensor detector type specified for your module Maintain by using only RAE Systems accessories including a Teflon filter or UV shield Use of non RAE Systems components will void the warranty and can compromise the safe performance of this product 58 RAEGuard 2 PID User s Guide 17 1 DigiPID Marking The DigiPID is certified according to the IECEx scheme ATEX and CSA for US and Canada as protected by intrinsic safety The product is marked with the following information RAE SYSTEMS 3775 N 1 St San Jose CA 95134 USA DIGI PID Type DS100 DS101 DS102 Serial No barcode XXX XXXX 000 IECEx KEM E 0575 10 0005 9IMI II 1G Ex 1a IIC T4 Class I Gr A B C D T4 Ga ma E Only as to intrinsic safety Ex ia I KEMAI0ATEX0059 for use in hazardous loc Intrinsically safe Securite Intrinseque Exia Pi 1 225W Vi 6 13V Ci 202u E Ii 1 5A Li 10H 40 C lt Tamb lt 55 C Warning Read User s Manual for Intrinsic Safety Precautions 59 RAEGuard 2 PID User s Guide 17 2 Operation Area and Conditions 17 2 1 Hazardous Areas classified by Zones DIGI PID is intended to be used in hazardous areas or mines susceptible to fredamp classified zone 0 zone 1 or zone
40. ransmitter enters the Reading Display it automatically starts testing for errors and goes through a cycle of checking each alarm 17 RAEGuard 2 PID User s Guide condition If there are no errors or alarm conditions the green OK LED ss lit and the gas concentration is displayed If there is an error the Fault LED blinks and an error message blinks Each alarm condition has a corresponding LED that blinks an amber color when the readings are outside a specified range or limit 7 6 Instrument Status Display After warm up the detector enters the Status Display It automatically starts testing for errors and goes through a cycle of checking each alarm condition If there is no error message or alarm condition gas concentration is displayed and LED flashes green If there is an error or alarm a corresponding message shows on the screen and the LED indicates different statuses Extemal LED LCD Output Alarm Current Normal Green Reading Reading Red flashing 2 Hz HIGH High alarm Red flashing 3 Hz Over Range Red flashing 3 Hz Pump Error Yellow flashing Hz Lamp Error Yellow flashing 1 Hz Max Alarm Red flashing 3 Hz Sensor Drift Calibration Fault Humidity Sensor Fault Yellow flashing Hz Yellow flashing Hz Green 1 Hz 18 9999 7228 na mu N H E RAEGuard 2 PID User s Guide 8 Navigating Settings You can view the basic
41. re is a countdown as calibration is performed Span Calibration Your options are indicated along the bottom of the screen Start Quit e Press to start e Press MODE to quit and return to the menu If you choose to start span calibration you see this message Please apply gas Connect the calibration gas start its flow and then press There 1s a countdown as calibration is performed Calibration Gas Advanced Mode You can set the gas that you want as your calibration gas Calibration gases are organized in two lists e Last Tenis a list of the last ten gases used by your instrument The list is built automatically and is only updated if the gas selected from the Gas Library is not already in the Last Ten This ensures that there 1s no repetition 26 RAEGuard 2 PID User s Guide e Gas Library is a library that consists of all the gases found in RAE Systems Technical Note TN 106 available online at WWW raesystems com e Press to step between the two options e Press MODE to go back to the menu level above it e Press 4 to select your choice and advance to its submenu Then follow the steps for the type of selection group you have chosen Last Ten 1 Step through the list s gases by pressing 2 Register your selection by pressing 3 Save your choice by pressing MODE Gas Library Step through the list s gases by pressing 2 Register your selection by pressing 3 S
42. red by a 5V 0 25V DC power supply It is housed in a weatherproof enclosure with a standard 8 pin interface connector The chart below details the functions of the eight pins Mes Power CS Analog Open GND Control A Drain Signal optional Notes Power in Power supply input connector for the sensor module The input voltage range is DC 5V 0 25V at 200mA CS Communication Select Select falling edge to start communication deselect rising edge to stop communication Analog Signal Out Analog signal output with 1kQ output resistance for the sensor module The output signal range is between 0 5V and 2 9 RXD amp TXD Serial interface poles receive and transmit for UART mode with 3 3V TTL level Open drain Switching signal output pole It can deliver low or high level to external equipment according to customer requirements GND Power and signal ground 63 RAEGuard 2 PID User s Guide Control signal This optional pole only delivers a high 3 3V or low 0V signal level Caution 6 2V is the maximum input voltage for all of the sensor module s input poles 19 Grounding Earth Connection DigiPID includes a grounding connection via pin 6 of the 8 pin connector If the complete installation must be grounded ensure that the thread on which DigiPID is mounted is correctly grounded Check local ordinances regarding further requirements 64 RAEGuard 2 PID User s Guide 20 Physical Description
43. ress to advance to the screen showing the measurement range M Range and high alarm H Alarm and low alarm L Alarm values M Range 1000ppm H Alarm 100 0ppm L Alarm 50 0ppm Press to advance to the screen showing the firmware version and build time and date and the serial number of the instrument Firmware V1 02 Built 15 49 45 Feb 2 2012 SN 0123456789 Press to advance to the Analog Output Test screen The analog output test is primarily used when commissioning a system It ensures that the mA output at the sensor location is the same as the input received on the system controller Run the analog test to make sure that the readings on the detector match the readings on the controller The analog test uses a timed step function to output specific mA values in sequence The test starts at 4 mA which typically corresponds to 0 ppm output The analog test then progresses in increments of 2 mA 4 6 8 etc all the way up to 20mA The corresponding sensor reading in ppm is shown on the unit s LCD display 21 RAEGuard 2 PID User s Guide For example if you have a sensor range of 0 to 1000 ppm the detector LCD displays in sequence 0 125 250 375 all the way up to 1000 ppm These are the ppm equivalent values of 4 6 8 10 etc all the way up to 20mA Analog Output Test Note You can stop the test and exit at any time by pressing 0 0 500 0 22 RAEGuard 2 PID User s
44. s Guide 23 2 Sensor Module Calibration The sensor module is calibrated before it leaves the factory However you can also calibrate the sensor module Allow it to warm up for two hours before calibrating it Calibration should be performed using external equipment using a two point calibration for the 100 and 1000 ppm VOC sensor 100 ppm and 1000 ppm range sensor module calibration First perform a zero gas calibration by applying fresh air to the sensor module If the module is configured for use with a pump the fresh air s flow rate must be greater than the pump s draw rate A calibration time of 1 minute is recommended The other calibration point requires exposure of the sensor to span gas The span gas concentration should be 10 ppm for 100 ppm range or 100 ppm for 1000 ppm range isobutylene and calibration time is also 1 minute IMPORTANT Whenever you change the sensor head while the instrument is in operation follow this procedure Press and hold until the screen says Change Sensor Press The RAEGuard 2 performs a full startup If you leave the sensor head detached from the RAEGuard 2 for more than 60 seconds it goes into alarm and displays this message Sensor Fa11 0 Replace the sensor head and follow the procedure above for restarting it 69 RAEGuard 2 PID User s Guide 23 3 Maintenance And Calibration The sensor module should be calibrated if it does not pass a bump test but no less than every
45. sful and you see the Zero Calibration Failed message check that the inlet is not blocked and that there are no other problems before retrying 41 10 2 RAEGuard 2 PID User s Guide Span Calibration Connect the calibration gas cylinder to the gas inlet IN port on the RAEGuard2 PID Note Make sure the labeled concentration of calibration gas matches the value that is set in the RAEGuard 2 PID If the RAEGuard 2 PID is not already in Programming Mode use the magnet key to press and then MODE in sequence Input your password followed by Password The instrument enters the calibration menu Press to enter the Calibration menu Press until Span calibration is highlighted Calibration Zero Fresh calib _ Span calibration 42 10 RAEGuard 2 PID User s Guide Press and this screen appears C Gas lsobutene Span 100 0ppm Please apply gas1 Start the gas flow Press A countdown screen 1s shown as the calibration 1s performed C Gas Spanz100 0ppm Calibration 30 Note You may abort the calibration during the countdown by pressing If you stop the calibration the process stops and this screen is displayed before the menu screen is shown Span Low aborted Once the calibration is complete this screen 1s shown Span Low is done Reading 100 0ppm If the calibration is not successful and you see the Span Low F
46. spect the surface of the PID lamp Clean it with GC Grade methanol on a swab as outlined in the next section 12 After the surface of the PID lamp dries reassemble the unit 74 RAEGuard 2 PID User s Guide 25 Sensor amp Lamp Cleaning Replacement Clean the PID sensor module the lamp and housing only if 1 The reading is inaccurate even after calibration 2 Thereading is very sensitive to air moisture 3 Aliquid has been sucked into the unit and damaged the unit Use of the external filter helps to prevent contamination of the sensor To access the sensor components and lamp gently unscrew the sensor cover Then hold the PID sensor and pull it straight out A slight gentle rocking motion helps release the sensor 25 1 Cleaning The PID Sensor Place the entire PID Sensor Module into GC grade methanol It is highly recommended that an ultrasound bath to be used to clean the sensor for at least 15 minutes Then dry the sensor thoroughly Never touch the electrodes of the sensor by hand Also use a methanol soaked cotton swab to wipe off the lamp housing where it contacts the sensor when the sensor is installed Turn over the sensor so that the pins point up and the sensor cavity 1s visible Examine the sensor electrodes for any corrosion damage or bending out of alignment The metal sensor electrode fingers should be flat and straight If necessary carefully bend the sensor fingers to ensure that they do not t
47. sword for Advanced Mode is 1250 Once you enter Programming Mode the LCD displays the first menu Calibration Each subsequent menu is accessed by pressing repeatedly until the desired menu is displayed To enter a submenu of a menu press The Calibration label is shown and its icon is highlighted but you can press to step from one programming menu to the next with the name of the menu shown at the top of the display and the corresponding icon highlighted 24 RAEGuard 2 PID User s Guide As you repeatedly press the selection moves from left to right and you see these screens in sequence Calibration Measurement 9 2 Calibration Two types of calibration are available Zero fresh air and Span Note Complete calibration procedures are detailed on page 39 Press to select Calibration Otherwise press MODE to go back or press to advance to the next menu The Calibration screen 1s shown Calibration Zero Calib Span Calib Select Zero or Span Calibration by pressing Once your choice is highlighted press 25 RAEGuard 2 PID User s Guide Zero Fresh Calibration Your options are indicated along the bottom of the screen Start Quit e Press to start e Press MODE to quit and return to the menu If you choose to start zero fresh air calibration you see this message Please apply zero gas Connect the zero gas start its flow and then press The
48. t glows whenever you press a button with the magnetic key In addition you can set the backlight to be either always on or only on when an event alarm occurs Press to place the cursor on the setting you want Press to make the selection 3 Press MODE to save your selection exit the LCD Backlight submenu and return to the Monitor Setup menu 37 RAEGuard 2 PID User s Guide Change Password Advanced Mode You can change the four digit password for accessing Basic Mode The default basic password is 1111 The advanced password 1s 1250 Note You cannot change the password for accessing Advanced Mode 1 Press to step through all 10 numerals 0 to 9 2 Press to advance to the next digit The next digit to the right flashes Repeat this process until all four digits of the new password are entered 3 Press MODE to register the selection 4 Press to save the new password MODE to return to editing the password and to cancel the change The new password is saved and the RAEGuard 2 PID exits back to the Monitor Setup menu 38 RAEGuard 2 PID User s Guide 10 Calibration WARNING The calibration of all newly purchased RAE Systems instruments should be tested by exposing the sensor s to a known concentration calibration gas before the instrument is used or put into service For maximum safety the accuracy of the RAEGuard 2 PID should be checked by exposing the sensor to a
49. t making a change If the value is within the sensor s range when you press the value is saved and Saved 1s displayed 28 RAEGuard 2 PID User s Guide If you have set a value that 1s outside the sensor s range you see this along with a message that says Invalid Input A ts xX You have two options e Press to exit without making a change e Press to go back to change the value Meas Gas Advanced Mode PIDs can be calibrated to a reference gas yet display the concentration readings in equivalent units of the target gas Isobutylene is typically used as the calibration gas because it 1s inexpensive readily available has immediate sensitivity and has very low toxicity The RAEGuard PID can display concentrations of over 200 gases using the built in library of correction factors Refer to RAE Systems Technical Note TN 106 available online at www raesystems com for further details Measurement gases are organized in two lists e Last Tenis a list of the last ten gases used by your instrument The list 1s built automatically and is only updated if the gas selected from the Gas Library is not already in the Last Ten This ensures that there is no repetition e Gas Library is a library that consists of all the gases found in RAE Systems Technical Note TN 106 available online at WWW raesystems com e Press to step between the two options e Press MODE to go back to the menu level abov
50. the level of gas concentration Check sensor Reason Pump failure 0 M Solution Make sure that the air path is not blocked Check pump dk v Reason Lamp failure Solution Check Sensor Reason Sensor drift Ones Solution Check sensor and or perform zero and span calibration Reason Calibration fails O ca Solution Check calibration operation gt Change sensor or contact RAE Systems Customer Service Reason Humidity sensor failure 9 H Solution Check the humidity in the area 5 Make sure that the air path 1s not blocked Contact RAE Systems Customer Service 45 RAEGuard 2 PID User s Guide 14 Appendix A Range Sensor and Related Configuration The following table shows the measurement range and related configurations for four different DigiPID sensor modules Span Gas Default Alarm Setup ppm Sensor Resolution Setup ppm ppm Default Low Alarm Value 0 100 0 1000 10 15 ModBus RS 485 Information The RAEGuard s communicates by means of MODBUS RTU All monitors provide a 4 byte register value Note Gas concentration is the only value that can be retrieved For example 34 hex 52 decimal Overview This document describes the modbus protocol used in RAEGuard 2 PID products 1 Communication Setting Communication Mode RTU Controller PC or Controller Client RAEGuard 2 PID Baud Rate 4800 9600 19200 Client ID 1 to 99 0x0001 to 0x0064 46 RAEGuard 2 PID
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