Rae RAEGuard 2 PID User manual

User’s Guide
RAEGuard 2 PID
P/N D03-4001-000 Rev D April 2012

RAEGuard 2 PID User’s Guide
Contents
Section 1: RAEGuard 2 PID User’s Guide
1General Information ............................................................2
2General Specifications.........................................................4
2.1 RAEGuard 2 PID Specifications...........................4
2.2 Proper Product Disposal At End Of Life...............5
3Operation.............................................................................6
4Physical Description............................................................7
5Physical Dimensions ...........................................................7
6Installation And Access Instructions...................................8
6.1 Mounting ...............................................................8
6.2 Instrument Disassembly ......................................10
6.3 Electrical Wiring .................................................11
6.4 Wiring Procedure.................................................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 Setup ...........................................14
7Display And User Interface...............................................16
7.1 User Interface ......................................................16
7.2 Magnet Key.........................................................16
7.3 Using The Magnet Key .......................................17
7.4 System Initialization............................................17
7.5 Reading Display ..................................................17
7.6 Instrument Status Display....................................18
8Navigating Settings ...........................................................19
9Programming Menus .........................................................23
Zero/Fresh Calibration.........................................................23
Meas. Unit* ......................................................................23
High Alarm.......................................................................23
Temp. Unit........................................................................23
Span Calibration.................................................................23
Meas. Range* ...................................................................23
Low Alarm........................................................................23
Language ..........................................................................23

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Set Span Value .................................................................23
Meas. Gas* .......................................................................23
Ext. Alarm Delay*............................................................23
Pump Duty (%)*...............................................................23
Calibration Gas*...............................................................23
Pump Cycle(s)* ................................................................23
Pump Status*....................................................................23
Bus Baudrate ....................................................................23
Analogout 4mA ................................................................23
Analogout 20mA................................................................23
Unit ID..............................................................................23
LCD Contrast....................................................................23
LCD Backlight..................................................................23
Change Password*............................................................23
9.1 Entering Programming Mode..............................24
9.2 Calibration...........................................................25
9.3 Measurement (Advanced Mode).........................27
9.4 Alarm Setting.......................................................31
9.5 Monitor Setup......................................................33
10 Calibration..................................................................39
10.1 Zero Calibration...................................................40
10.2 Span Calibration..................................................42
11 Alarm Signal Summary..............................................44
12 Maintenance ...............................................................45
13 Troubleshooting..........................................................45
14 Appendix A: Range, Sensor and Related
Configuration..............................................................46
15 ModBus/RS-485 Information.....................................46
16 Appendix B: Controlled Section ................................48
16.1 Scope ...................................................................48
16.2 Contents...............................................................48
16.3 Scope ...................................................................50
16.4 Responsibility......................................................50
16.5 Contents...............................................................50

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Section 2: DigiPID User’s Guide
Safety Instructions....................................................................57
17 Read Before Operating...............................................58
17.1 DigiPID Marking.................................................59
17.2 Operation Area and Conditions...........................60
17.2.1 Hazardous Areas classified by Zones............60
Hazardous Areas classified by Divisions .................60
17.3 Instruction For Safe Use......................................60
17.4 Use In Hazardous Areas......................................61
17.5 Year of manufacture............................................61
17.6 Specifications ......................................................62
18 General Information ...................................................63
19 Grounding (Earth Connection)...................................64
20 Physical Description...................................................65
21 Sensor Parts And Dimensions....................................66
22 Operating the Sensor Module.....................................67
22.1 Preparing The Sensor For Use.............................67
23 Using The Sensor Module..........................................68
23.1 Gas Flow Routing Connection ............................68
23.2 Sensor Module Calibration..................................69
23.3 Maintenance And Calibration..............................70
23.4 Replacing the Lamp And Filter...........................70
24 Replacing The Sensor’s Teflon UV Shield................72
25 Sensor & Lamp Cleaning/Replacement .....................75
25.1 Cleaning The PID Sensor....................................75
25.2 Cleaning The Lamp Housing Or Changing
The Lamp.............................................................76
25.3 Cleaning The Instrument.....................................77
25.4 Ordering Replacement Parts................................77
25.5 Special Servicing Note ........................................77
26 Electronic Waste Disposal..........................................78
27 Technical Support.......................................................79
28 RAE Systems Contacts...............................................79

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© Copyright 2012 RAE Systems by Honeywell

RAEGuard 2 PID User’s Guide
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Section 1: RAEGuard 2 PID User’s Guide

RAEGuard 2 PID User’s Guide
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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:
•Digital Smart Sensor Technology
•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
optional (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

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Applications:
•Refineries, petrochemical and natural gas plants
•Metallurgical
•Chemical, medication
•Environmental protection
•Electricity, communications
•Fire protection
•Utilities
•Pulp and paper, printing
•Storage
•Sewage disposal
•Food, brewing
•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 - pending
IECEx
Ex d ia IIC T4 Gb

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2 General Specifications
2.1 RAEGuard 2 PID Specifications
Basic Parameters
Principle
PID (photoionization detector)
Sensor
Digital Smart Sensor
Sampling
Internal diaphragm pump
Working Current
DC 10 to 28V, 210mA at 24V
Power
<5W
Output
•4-20mA
•Three-level programmable alarm relays
(30 VDC, 2A)
•RS-485 (Supports Modbus)
IP Rating
IP-65
Mechanical
Interface
3/4" NPT Male
Installation
2" pipe-holding or wall mounting
User Interface
Three-key magnetic bar adjustment
Calibration
Two points
Environmental Parameters
Temperature
-20° C to +55° C (-4° F to 131° F)
Humidity
0 to 95% relative humidity, non-condensing
Pressure
90 to 110kPa
Display
Display
128x64 matrix backlit LCD, supports graphic
display

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RAEGuard 2 PID Specifications (continued)
Physical Parameters
Dimensions,
L x W x H
257 x 201 x 107 mm
(10.1" x 7.9" x 4.2")
Material
Stainless steel
Weight
3.5 kg (7.7 lbs)
Certification
ATEX
II 2G Ex d ia II CT4 Gb
UL/CSA
Class I, Div. 1, Groups A B C D T4 - pending
IECEx
Ex d ia IIC T4 Gb
Ex Entity
Parameters
Um: 28VDC (input supply)
2.2 Proper Product Disposal At End 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
information is given in this user guide.