Page 1 AreaRAE Wireless Multi-Gas Monitor Includes AreaRAE, AreaRAE Gamma, AreaRAE Gamma Steel, And AreaRAE Steel Operation & Maintenance Manual Document Number: 029-4034-000 Revision A, September 2006 This product may be covered by one or more of the following U.S. Patents: 5,393,979...
Page 2 The battery of the AreaRAE slowly drains even when it is not on. If the monitor has not been charged for 5 to 7 days, the battery voltage will be low.
Page 3 For maximum safety, the accuracy of the AreaRAE and AreaRAE Gamma should be checked by exposing the sensor(s) to known concentration calibration gas before each day’s use.
Page 4 être dangereuse. La calibration de toute instruments de RAE Systems doit être testé en exposant l’instrument à une concentration de gaz connue par une procédure dietalonnage avant de mettre en service l’instrument pour la première fois.
Page 5 For maximum safety, the accuracy of the AreaRAE Steel should be checked by exposing the sensor(s) to known concentration calibration gas before each day’s use.
Page 6 Pour une sécurité maximale, la sensibilité du the AreaRAE Steel doit être vérifié en exposant l’instrument à une concentration de gaz connue par une procédure dietalonnage avant chaque utilisation...
Page 7: Table Of Contents
TABLE OF CONTENTS 1. General Information 1.1 AreaRAE & AreaRAE Steel Specifications 1.2 AreaRAE Gamma & AreaRAE Gamma Steel Specifications 1.3 Radio Specifications – 869 MHz models 1.4 Radio Specifications – 900 MHz models 1-10 1.5 Radio Specifications – 2.4 GHz models 1-11 2.
Page 8 4.8.5 Change PID Lamp Type 4-45 4.8.6 Change RAD Unit (Gamma Models Only) 4-45 4.9 Exit Program Mode 4-46 5. Theory of Operation 6. Maintenance Of AreaRAE & AreaRAE Gamma 6.1 Battery Replacement 6.2 Sensor Replacement 6.3 PID Sensor Cleaning / Replacement...
Page 9 TABLE OF CONTENTS 6.4 Taking Care of the Lamp 6.5 Sampling Pump Replacement 7. Maintenance Of AreaRAE Steel & AreaRAE Steel Gamma 7.1 Opening the Monitor 7.2 Reassembling the Monitor 7.3 Battery Replacement 7.4 Sensor Replacement 7.5 PID Sensor Cleaning/Replacement 7.6 Taking Care of the Lamp...
Page 10 Front View of AreaRAE Right Side View of AreaRAE Left Side View of AreaRAE Front of AreaRAE Steel Right Side View of AreaRAE Steel Left Side View of AreaRAE Steel Display and Keypad Interchangeable Battery Packs (AreaRAE & AreaRAE Gamma) Interchangeable Battery Packs (AreaRAE Steel &...
Page 11: General Information
GENERAL INFORMATION 1. General Information The AreaRAE is a portable multi-gas monitor that provides real-time measurements and activates alarm signals when exposure exceeds preset limits. The programmable monitor contains up to five sensors that monitor toxic gases, oxygen, combustible gases, and radiation (Gamma models only) for workers in hazardous environments.
Page 12: Arearae Gamma & Arearae Gamma Steel
GENERAL INFORMATION IMPORTANT! The central design of all AreaRAE monitors is similar. Therefore, throughout this this Operation & Maintenance Manual, most functions and descriptions are given for the AreaRAE, meaning AreaRAE, AreaRAE Gamma, AreaRAE Steel, and AreaRAE Gamma Steel. Where variations occur, they are noted.
Page 13 GENERAL INFORMATION 1.1 AreaRAE & AreaRAE Gamma General Specifications Table 1.1 Multi-Gas Radiation Monitor Specification Dimensions 23.5cm L x 12.7cm W x 23.5cm H (9.25" L x 5.0" W x 9.25" H) Weight 4.03 kg (8.9 lbs) with battery Detector Up to five sensors: •...
Page 14 Wireless Feature Real-time, RF data transmission Safety Certification CSA Canada/USA Class I, Division 2 Groups A, B, C, D AreaRAE only: UL USA Class I, Division 2 Groups A, B, C, D; Class II, Groups E, F, G...
Page 15: Range, Resolution & Response Time
0 to 5 ppm 0.1 ppm 60 sec Gamma 1 to 4000 µR/hr 1 µR/hr 10 sec Caution: Refer to RAE Systems Technical Note TN-114 for sensor cross-sensitivities. Refer to RAE Systems Technical Note TN-144 for information on LEL sensor poisoning.
Page 16 GENERAL INFORMATION 1.2 AreaRAE Steel & AreaRAE Gamma Steel General Specifications Table 1.3 Multi-Gas Monitor Specifications Dimensions 23.5cm L x 12.7cm x 23.5cm (9.25" L x 5.0" W x 9.25" H) 6.48 kg (14.3 lbs) with battery Weight Detector Up to five sensors: •...
Page 17 GENERAL INFORMATION 100dB buzzer at 10 cm (typical) Audible Alarm Visible Alarm Flashing red LED cluster to indicate exceeded preset limits, low battery, or sensor failure Calibration Two point field calibration for fresh air and standard reference gas Attachments Optional tripod/wall mounting bracket Sampling Pump Internal integrated diaphragm pump with programmable “High”...
Page 18 GENERAL INFORMATION Table 1.4 Range, Resolution & Response Time (T 0 to 500 ppm 1 ppm 40 sec 0 to 100 ppm 1 ppm 35 sec 0 to 20 ppm 0.1 ppm 35 sec 0 to 250 ppm 1 ppm 30 sec 0 to 20 ppm 0.1 ppm...
Page 19 GENERAL INFORMATION 1.3 AreaRAE Steel Radio Technical Specifications (869MHz Versions) Radio Characteristics 869.400 to 869.650MHz, RF Frequency 2 user-selectable channels Number of 2 (Ch. 1: 869.50MHz; Channel Ch. 2: 869.560MHz) Channel Spacing 60kHz RF Data rate 38.4kbps GFSK Modulation Duplex Maximum E.R.P.
Page 20 GENERAL INFORMATION 1.4 AreaRAE & AreaRAE Steel Radio Technical Specifications (900MHz Versions) Radio Characteristics RF Frequency 902 to 928MHz Method Frequency hopping spread spectrum Hopping Channels 105 total, user selectable Hopping Bands 7 user selectable Operating Range Up to 3.2 km (2 miles) in line of sight...
Page 21 100 km/hr (60 miles/hr) I/O Interface RS-232 Antenna Port N female Interface Power Supply 535mA @ 7.4V Current 310mA @ 7.4V Consumption Idle: 85mA @ 7.4V Note: AreaRAE (2.4GHz) has only UL USA certification. AreaRAE Steel (2.4GHz) does not have safety certification. 1-11...
Page 22: Operation Of The Arearae
Prior to factory shipment, the AreaRAE is preset with default alarm limits, and sensors are pre-calibrated with standard calibration gas. However, the user should calibrate the instrument before first use.
Page 23: Physical Description
OPERATION OF THE AREARAE 2.1 Physical Description 2.1.1 AreaRAE & AreaRAE Gamma Figure 2-1 Front View: Main Components 1. LCD Display with Backlight 2. Audible Alarm Port 3. Red LED Alarm Light 4. Handle 5. Antenna...
Page 24 OPERATION OF THE AREARAE Figure 2-2 Right Side View: Main Components 1. Gas inlet port 2. Serial communication port for PC interface 3. Charger port: power jack connects AreaRAE to external DC for charging 4. External Filter...
Page 25 OPERATION OF THE AREARAE Figure 2-3 Left Side View: Main Components 1. Battery Pack 2. Gas outlet 3. Mounting conduit...
Page 26 OPERATION OF THE AREARAE 2.1.2 AreaRAE Steel & AreaRAE Gamma Steel Figure 2-4 Front View of the AreaRAE Steel 1. LCD Display with Backlight 2. Audible Alarm Port 3. Red LED Alarm Light 4. Handle 5. Antenna 6. Inlet filter...
Page 27 OPERATION OF THE AREARAE Figure 2-5 Right side of the AreaRAE Steel 1. Gas inlet port 2. Serial communication port for PC interface 3. Charger port: power jack connects the AreaRAE Steel to external DC for charging 4. External filter...
Page 28 OPERATION OF THE AREARAE Figure 2-5 Left side of the AreaRAE Steel 1. Battery compartment: AreaRAE Steel monitors are equipped with interchangeable rechargeable Lithium-Ion and alkaline battery packs 2. Gas exit port...
Page 29: Keys And Displays
OPERATION OF THE AREARAE 2.2 Keys and Display Radio On/Off Charge Status Radio On/Off Charge Status Figure 2-6 AreaRAE and AreaRAE Steel (left) and AreaRAE Gamma and AreaRAE Gamma Steel Display and Keypad (right) Table 2.1 Key Functions During Normal Operation Function [MODE]...
Page 30: Turn Power On/Off
OPERATION OF THE AREARAE 2.3 Turn Power On/Off To turn ON Press [MODE]. The audio buzzer beeps once, and the screen displays the following, in order: • “ON!” • “Multi-gas Monitor Version n.nn” or “Multi-gas Radiation Monitor Version n.nn” (the software version) •...
Page 31: Data Protection
The absence of a letter “D” indicates a non-datalog monitor. You may upgrade a non-datalog monitor to a datalog monitor. Call RAE Systems for information on how to order the upgrade kit. 2-10...
Page 32: Operation Modes
OPERATION OF THE AREARAE 2.5 Operation Modes The AreaRAE offers three different modes of operation: • Text Mode • Display Mode • Program Mode The default mode is Text Mode. To enter the other two modes, or to enter Text Mode again after another mode has been selected, follow this procedure: 1.
Page 33: Text Mode
OPERATION OF THE AREARAE 2.5.1 Text Mode Text Mode is the monitor’s default setting. The monitor toggles between the Instantaneous Gas Concentration reading and the Sensor Name after the monitor is turned on. You can press [MODE] to see the Instantaneous Gas Concentration reading or Battery Voltage, or you may enter the PC Communication menu.
Page 34: Display Mode
19.9 STEL 19.9 AreaRAE AreaRAE Gamma AreaRAE and AreaRAE Steel (non-Gamma models) only: 2. The sensor names display (non-Gamma monitors only): CO, H2S, etc. - up to two toxic sensors VOC - PID sensor LEL - combustible gas sensor OXY - oxygen sensor Gamma –...
Page 35 OPERATION OF THE AREARAE is measured in micro sieverts per hour (µSv/hr) or micro rems-per-hour (µR/hr). TOX1 Gamma µR/hr 2b. The accumulated dosage display shows the total radiation dosage since the last reset. Press [Y/+] to clear the dosage reading.
Page 36 OPERATION OF THE AREARAE The minimum reading is the lowest reading of each gas concentration since the monitor was turned on. Readings are updated every second with a “Min” message: TOX1 TOX2 TOX1 Gamma 19.9 19.9 AreaRAE AreaRAE Gamma 4. The STEL reading only applies to VOC and toxic gases.
Page 37 20 to 30 minutes of operating time remaining before the battery voltage falls below 6.4 V and the monitor automatically turns off. 7 through 9 apply to AreaRAE and AreaRAE Steel (non- Gamma models) only: 7. The run time reading is the accumulated time in hours and minutes the monitor has been on.
Page 38 OPERATION OF THE AREARAE 10. “Communicate with PC?” allows you to upload data from the AreaRAE to a PC or to download configuration information from a PC to the AreaRAE. Press [Y/+] and the message “Monitor will pause, OK?” reminds you that during PC communication, there is no real-time monitoring.
Page 39: Program Mode
** If the unit is a Gamma model *** The following displays are only available in Program Mode on AreaRAE Gamma and AreaRAE Gamma Steel: 1. The run time reading is the accumulated time in hours and minutes the monitor has been on. The reading is...
Page 40 OPERATION OF THE AREARAE 2. The monitor displays the selected LEL and VOC gas name if the combustible sensor and PID sensor are installed. When an LEL or VOC gas is selected, the display features the calculated gas concentration based on the built-in correction factor for the specified gas.
Page 41: Alarm Signals
Peak, STEL and TWA values. Alarm Signal Latching It is possible to set up the AreaRAE from a PC or while the unit is in Program Mode so that when an alarm condition occurs, the alarm signals remain on even after the alarm condition is no longer present.
Page 42: Alarm Signal Summary
* AreaRAE Gamma and AreaRAE Steel only. Alarm Signal Testing Under normal conditions, it is possible to test the AreaRAE LED, buzzer, and back light by momentarily pressing [Y/+]. The buzzer beeps once, and the LED and backlight flash once to indicate alarm signals are functioning correctly.
Page 43: Backlight
OPERATION OF THE AREARAE 2.7 Backlight The LCD is equipped with a backlight to assist reading under poor lighting conditions. When the monitor is in Normal Operation mode, the backlight may be manually turned on by pressing and holding [N/-] for one second. Press [N/-] a second time to turn off.
Page 44: Alarm Limits And Calibration
The AreaRAE is factory calibrated with standard calibration gas, and is programmed with default alarm limits as listed below. (See Section 4.4: Calibration of the AreaRAE Steel and Section 4.5: Change Alarm Limits) Table 2.3 AreaRAE Alarm Limits & Calibration...
Page 45: Integrated Sampling Pump
OPERATION OF THE AREARAE 2.9 Integrated Sampling Pump The AreaRAE includes an internal integrated sampling pump with programmable high (400cc) and low (300cc) flow rate settings. A low pump speed of ~300cc per minute is the factory default setting. This rate increases battery life by about 5%, which results in an increased LEL sensor lifetime (See Section 4.7.9:...
Page 46: Datalogging
OPERATION OF THE AREARAE 2.10 Datalogging The AreaRAE calculates and stores gas readings based on the user-specified datalogging period and type of measurement. Two types of gas measurements, average or peak concen- tration may be stored for each sensor for any datalogging interval.
Page 47 OPERATION OF THE AREARAE Other Datalog options automatically start and stop: Datalogging Event Each time a datalogging operation is initiated, a datalog event is created. Information, such as start time, datalogging period, alarm limits, etc., is recorded in the event header, followed by the measurement data.
Page 48: Operation Of Accessories
029-STCM-001. The installation requires: • Charging circuit to be run within conduit. • AreaRAE to be installed within a larger enclosure that provides conduit entry and requires a tool to open. • Charging circuit cable must be terminated with a Switchcraft S761K or equivalent (see RAE 400-0472-000 for critical requirements) plug with locking collar.
Page 49: Battery Charging Operation
OPERATION OF ACCESSORIES 3.1 Battery Charging Operation The charging circuit of the AreaRAE is built into the monitor. It requires a regular AC to 15 VDC adapter (a wall-mount transformer) to charge the monitor. 1. Connect the AC adapter (or the optional automotive charging adapter) to the charger port on the bottom of the AreaRAE monitor.
Page 50: Interchangeable Battery Packs
3.2 Interchangeable Battery Packs 3.2.1 AreaRAE An alkaline battery adapter is supplied with each AreaRAE and AreaRAE Gamma kit. It may be used in place of the rechargeable Lithium-Ion battery pack to provide at least 24 hours of operation. The alkaline pack holds 6 C-size alkaline batteries. Use only DURACELL MN1400 or ENERGIZER E93 C-size batteries with the AreaRAE and AreaRAE Gamma alkaline battery pack.
Page 51 3. A red “charge” LED located on the front of the instrument will indicate that the battery is being charged. A completely drained AreaRAE will be fully charged within 10 hours. Removing or Replacing the Alkaline Battery Adapter 1. Before removing or replacing the battery pack, please make sure the AreaRAE is located in a non-hazardous area and is not connected to the charger.
Page 52 OPERATION OF ACCESSORIES 3.2.2 AreaRAE Steel An alkaline battery adapter is supplied with each the AreaRAE Steel and AreaRAE Gamma Steel kit. It may be used in place of the rechargeable Lithium-Ion battery pack to provide at least 24 hours of operation.
Page 53 Removing or Replacing the Alkaline Battery Adapter 5. Before removing or replacing the battery pack, please make sure the AreaRAE Steel monitor is located in a non- hazardous area and is not connected to the charger. 6. To remove the battery pack, unscrew the four screws that secure the plate over the battery compartment.
Page 54: External Filter
3.4 Remote Sampling Probe ® A 5-meter (15') length of Teflon tubing is supplied as a standard accessory with every the AreaRAE Steel detector. An ® optional 6' Teflon remote sampling probe with a telescoping handle is also available for the user who needs to probe hard- to-reach areas such as ceilings, storage tanks, underground manholes, etc.
Page 55: Dilution Fitting
Teflon tubing used to measure the gas concentration. 3.6 Calibration Adapter The AreaRAE should be calibrated with the external filter in place. The AreaRAE calibration adapter is designed to slip over the filter. During calibration, connect the calibration adapter to the cylinder of the calibration gas.
Page 56: Programming The Arearae
PROGRAMMING THE AREARAE 4. Programming the AreaRAE The AreaRAE is built with a microprocessor to provide programming flexibility for the user. Authorized users may recalibrate the monitor, change alarm limits, change site ID, change user ID, change datalogging period, adjust the real- time clock, etc.
Page 57: Program Mode
PROGRAMMING THE AREARAE 4.1 Program Mode The AreaRAE has three user modes: Text, Display and Program mode. See Section 4.3: Entering Programming Mode for details. The programming function allows changing the setup in the monitor, calibrating the monitor, modifying the sensor configuration, entering user information, etc.
Page 58 PROGRAMMING THE AREARAE Security Level There are three levels of security in the Program Mode to prevent unauthorized changes to specific settings. Security levels are set by PC. See Section 4.3: Entering Programming Mode for details. Once inside Program Mode, the first menu displays. Press [N/-] to view each menu option.
Page 59: Keys For Program Mode
PROGRAMMING THE AREARAE 4.2 Keys for Program Mode Table 4.1 Programming Keys Function [MODE] Exit menu when pressed momentarily, or exit data entry mode when pressed and held for 1 second. Increase numerical value for data entry. [Y/+] Answer “yes.”...
Page 60: Entering Program Mode
PROGRAMMING THE AREARAE 4.3 Entering Program Mode 1. Turn on the AreaRAE monitor (press [MODE] for three seconds and then release). 2. Press and hold [MODE] and [N/-] for three seconds to enter Program Mode. This prevents entering Program Mode by accident.
Page 61 Set Temperature Unit? Change Sensor Configuration? Change LEL/VOC Gas Selection? Enable/Disable Sensor? Change Dilution Ratio? Change PID Lamp Type? Change RAD unit? + = Available * = Password Required = No change allowed + = AreaRAE Gamma and AreaRAE Gamma Steel only...
Page 62: Calibrating The Arearae Steel
AreaRAE should be checked by exposing the sensor(s) to known concentration calibration gas before each day’s use. In Program Mode, you may recalibrate sensors in the AreaRAE monitor. This is a two-point calibration process using fresh air and the standard reference gas. First, fresh air, which contains 20.9% oxygen and no detectable VOC, toxic or combustible...
Page 63: Fresh Air Calibration
PROGRAMMING THE AREARAE 4.4.1 Fresh Air Calibration This procedure determines the zero point of the sensor calibration curve. To perform fresh air calibration, the calibration adapter and a bottle of fresh air (optional) are required. The bottle of fresh air contains 20.9% oxygen concentration and contains no organic, toxic or combustible gases or other impurities.
Page 64: Sensor Calibration Time
PROGRAMMING THE AREARAE 4.4.2 Sensor Calibration Time Refer to the RAE website, www.raesystems.com, and download Technical Note TN-114, Sensor Specifications And Cross Sensitivities, for current data and information regarding sensor calibration time. Slowly responding sensors listed in TN-114 may require pre- exposure to the gas immediately before initiating the calibration sequence.
Page 65: Multiple-Sensor Calibration
2. Press [Y/+] to continue, and the instrument asks you to apply gas to the sensors. Connect the Luer fitting on the calibration gas adapter to the inlet of the AreaRAE Steel. Leave the External Filter in place during calibration.
Page 66 PROGRAMMING THE AREARAE Note: If the readings are very close to the span gas values, then the calibration was successful. If the readings are not close to the span gas values, then calibration has failed. Therefore, you must verify that the span gas value settings in the unit match the given values on the gas bottle.
Page 67 PROGRAMMING THE AREARAE Cross-Sensitivity Some sensors may show cross-sensitivity to other gases. Therefore, it is important to choose the gas mixture carefully for the Multiple Sensor Calibration to avoid erroneous readings. For example, some VOC gases are known to cause erroneous readings by the CO sensor.
Page 68: Single-Sensor Calibration
PROGRAMMING THE AREARAE 4.4.4 Single-Sensor Calibration This procedure determines the second point of the sensor calibration curve for a single sensor. A standard reference gas (span gas) is needed to perform this procedure. Table 2.2 (Alarm Limits and Conditions) shows the standard calibration gas typically used as the span gas at the factory.
Page 69 PROGRAMMING THE AREARAE 3. This completes the single-gas calibration procedure for one sensor. The display shows the single-gas calibration submenu for a user to select another sensor or move to the next submenu, Modify Span Gas Value. 4. Turn the gas flow off. Disconnect the calibration tube from the AreaRAE Steel.
Page 70: Modify Span Gas Value
PROGRAMMING THE AREARAE 4.4.5 Modify Span Gas Value This function allows changing the span values of the standard calibration gases. 1. The next submenu is “Modify Span Gas Value?” 2. Press [Y/+], and the following display appears: TOX1 TOX2 TOX1...
Page 71: Change Lel/Voc Span Gas
PROGRAMMING THE AREARAE 4.4.6 Change LEL/VOC Span Gas This function allows the user to select a specific LEL or VOC gas to be used as the span gas during LEL or VOC gas calibration. 1. When the “Change LEL/VOC Span Gas?” submenu appears, press [Y/+].
Page 72 PROGRAMMING THE AREARAE 5. If the VOC sensor is installed and enabled, the display shows: TOX1 TOX2 TOX1 Gamma VOC Span = ? VOC Span = ? Isobutylene Isobutylene AreaRAE AreaRAE Gamma Otherwise, the message “No VOC installed” is shown.
Page 73: Change Alarm Limits
PROGRAMMING THE AREARAE 4.5 Change Alarm Limits You may change each sensor’s alarm limits while in Program Mode. These are the submenus for changing the alarm limits: Change High Alarm limit? Change Low Alarm limit? Change STEL alarm limit? Change Average alarm limit? 5.
Page 74 PROGRAMMING THE AREARAE TOX1 TOX2 TOX1 Gamma 10.0 10.0 AreaRAE AreaRAE Gamma Alternatively, if the Averaging Method is the Running Average, the AVG is displayed instead of the TWA. (See Section 4.7.9: Change Averaging Method.) TOX1 TOX2 TOX1 Gamma 10.0 10.0...
Page 75: Change Datalog
PROGRAMMING THE AREARAE 4.6 Change Datalog The AreaRAE calculates and stores the gas readings at a specified interval. (AreaRAE Gamma and AreaRAE Steel also store gamma radiation readings.) You can change datalog setup from the Program Mode. You can also program additional datalog options by downloading from the PC to the AreaRAE Steel monitor.
Page 76: Clear All Data
PROGRAMMING THE AREARAE 4.6.1 Clear All Data This function erases all data stored in the non-volatile datalog memory. This does not change STEL, TWA, Peak, minimum concentration and run time values that are stored in the other location. 1. “Clear All Data?” is the second item in the Datalog submenu.
Page 77: Change Datalog Period
PROGRAMMING THE AREARAE 4.6.2 Change Datalog Period The datalog period can be programmed from 1 to 3,600 seconds (1 hour). 1. “Change Datalog Period?” is the third item in the Datalog Program submenu item. 2. Press [Y/+], and the display shows “New Period = 0060”...
Page 78: Select Data Type
PROGRAMMING THE AREARAE 4.6.3 Select Data Type You can choose to store either the average or the peak value during each datalog period. 1. When the “Select Data Type?” submenu item appears, press [Y/+]. The display shows the current data type: “Data Type = Average?”...
Page 79: Enable/Disable Datalog
PROGRAMMING THE AREARAE 4.6.4 Enable/Disable Datalog You can choose to enable or disable the datalogging function on each individual sensor. This allows selective logging of certain sensor readings of interest. 1. When “Enable / Disable Datalog?” appears, press [Y/+]. The display shows the entire installed sensor in the monitor.
Page 80: Change Monitor Setup
PROGRAMMING THE AREARAE 4.7 Change Monitor Setup In the Program Mode, you may change monitor setup or enter user information for the AreaRAE. Monitor Setup submenu: User Mode Refer to section Change Site ID? 4.7.1 Change User ID? 4.7.2 Change Alarm Mode? 4.7.3...
Page 81: Change Site Id
PROGRAMMING THE AREARAE 4.7.1 Change Site ID To change the Site ID, you must enter an eight-digit alphanumeric site ID in the Program Mode. This site ID is then included in the datalog report. 1. “Change Site ID?” is the first submenu item. Press [MODE] to choose one of them and press [Y/+].
Page 82: Change User Id
PROGRAMMING THE AREARAE 4.7.2 Change User ID To change the User ID, enter an eight-digit alphanumeric user ID in the Program Mode. This user ID is then included in the datalog report. 1. “Change User ID?” is the second submenu item. Press [Y/+] and the display shows the current user ID: “User...
Page 83: Change Alarm Mode
PROGRAMMING THE AREARAE 4.7.3 Change Alarm Mode There are two different alarm modes that can be selected from the programming menu in the AreaRAE, latched and auto reset: 1. “Change Alarm Mode?” is the third submenu item. Press [Y/+], the display shows the current alarm mode selection: “Alarm Mode = Latched?”...
Page 84: Change User Mode
PROGRAMMING THE AREARAE 4.7.4 Change User Mode You can select three different user modes from the programming menu: program, display, and text. 1. “Change User Mode?” is the fourth submenu item. Press [Y/+], the display shows the current user mode selection: “User Mode = Program?”...
Page 85: Change Real-Time Clock
PROGRAMMING THE AREARAE 4.7.5 Change Real-time Clock The AreaRAE is equipped with a real-time clock. You can enter the correct date and time into the real-time clock in the Program Mode. 1. “Change Real-time Clock?” is the fifth submenu item.
Page 86: Change Light And Buzzer Mode
PROGRAMMING THE AREARAE 4.7.6 Change Light and Buzzer Mode The AreaRAE allows you to turn the light and buzzer on or off. The factory settings are saved to have both the light and buzzer turn on during alarm conditions. However, after you change and save the settings, that particular setting appears the next time you enter this menu to change the options again.
Page 87: Change Password
PROGRAMMING THE AREARAE 4.7.7 Change Password You can modify the password from the monitor. 1. When the screen “Change Password?” appears, press [Y/+] and the display shows the current password: “Enter new password = xxxx” with the left-most digit flashing.
Page 88: Change Pump Duty Cycle
“Save?” appears by pressing [Y/+]. A “Save!” message confirms changed settings have been saved. 5. If you decide not to save changes to settings, then press [N/-] when “Save?” appears. The AreaRAE Steel advances to next menu option, “Change Pump Speed?” 4-33...
Page 89: Change Pump Speed
PROGRAMMING THE AREARAE 4.7.9. Change Pump Speed Two speed settings for the pump motor can be selected from the programming menu: low (default) and high. The “high” setting (400cc flow per minute) should be used for long lengths of tubing or when rapid changes in input conditions are expected.
Page 90: Change Averaging Method
PROGRAMMING THE AREARAE 4.7.10 Change Averaging Method There are two methods of calculation used in the averaging of the monitor. Using this selection can cause the calculation to be performed using an eight-hour time-weighted average (TWA), the default, or a running average (AVG). The display indicator for the selected averaging type shows on the LCD display wherever the average is indicated.
Page 91: Change Display Language
2. To switch the language to Spanish, press [Y/+] to enter submenu “Change Language = Spanish.” Press [Y/+] again to confirm your selection. The AreaRAE Steel advances to next menu option, “Set Temperature Unit?” Otherwise, press [N/-] to return to step 1.
Page 92: Set Temperature Unit
PROGRAMMING THE AREARAE 4.7.12 Set Temperature Unit You may change the temperature unit from Fahrenheit to Celsius (factory setting), or back to Fahrenheit from Celsius. 1. At the “Set Temperature Unit?” display, press [Y/+]. The next screen to appear is either “Temperature Unit = Fahrenheit?”...
Page 93: Change Sensor Configuration
Before these submenus are described, the term “Correction Factor” needs to be explained: 4.8.1 Correction Factor The PID and LEL sensor used in the AreaRAE are broadband sensors (that is, they respond to a broad range of gases). These sensors typically show a different sensitivity to different gases.
Page 94 PROGRAMMING THE AREARAE gas. The AreaRAE calculates the correction factor between these two gases and converts the measured value of the LEL sensor into an equivalent concentration of the pentane gas. Similarly, you can choose one VOC gas for calibration and another VOC gas for measurement.
Page 95: Change Lel/Voc Gas Selection
PROGRAMMING THE AREARAE 4.8.2 Change LEL/VOC Gas Selection This function allows a choice of one of the pre-stored LEL or VOC gases in the monitor and calculate its correction factor relative to the LEL or VOC calibration gas. This factor will then be used during gas measurements to show the equivalent concentration of the selected LEL or VOC gas.
Page 96 PROGRAMMING THE AREARAE 5. “1.00” is the calculated correction factor of the selected gas in Step 4. TOX1 TOX2 TOX1 Gamma Methane Methane LEL Factor = 1.00? LEL Factor = 1.00? AreaRAE AreaRAE Gamma 6. If you do not want to modify the LEL correction factor, press [Y/+] and go to Step 8.
Page 97 PROGRAMMING THE AREARAE 11. “1.00” is the calculated correction factor of the selected gas in Step 10. TOX1 TOX2 TOX1 Gamma Isobutylene Isobutylene VOC Factor = 1.00? VOC Factor = 1.00? AreaRAE AreaRAE Gamma 12. If you do not want to modify the VOC correction factor, press [Y/+] and exit the submenu.
Page 98: Enable/Disable Sensor
4.8.3 Enable/Disable Sensor This function allows you to selectively enable or disable individual sensors in the AreaRAE. When a sensor is disabled, the sensor does not measure or display the gas concentration. 1. “Enable / Disable Sensors?” is the second submenu. Press [Y/+].
Page 99: Change Dilution Ratio
PROGRAMMING THE AREARAE 4.8.4 Change Dilution Ratio You can connect an optional dilution fitting to the AreaRAE’s gas inlet port to dilute the gas sample. Enter a dilution ratio (from 1 to 10) from the programming menu so that the reading...
Page 100: Change Pid Lamp Type
4.8.6 Change RAD Unit (Gamma Models) This programming menu on the AreaRAE Gamma and AreaRAE Gamma Steel allows you to choose the display unit for radiation measurement. The default display unit is µR/h. 1. “Change RAD Unit” is the fifth submenu item. Press [Y/+] and the current radiation unit selection is: “RAD Unit =...
Page 101: Exit Program Mode
PROGRAMMING THE AREARAE 4.9 Exit Program Mode To exit Program Mode from the first-tier menu level, press [MODE] once. 1. Display shows an instantaneous reading of normal operation mode. 2. To exit Program Mode from second-tier submenu level, press [MODE] twice.
Page 102: Theory Of Operation
THEORY OF OPERATION 5.0 Theory of Operation The AreaRAE uses one to five different sensors to measure a variety of gases. A newly developed electrodeless discharge UV lamp is used as the high-energy photon source for the PID sensor (see Figure 5-1). The patented PID sensor detects a broad range of organic vapors.
Page 103 THEORY OF OPERATION The PID sensor for the AreaRAE is located in a small cavity in front of the UV lamp. The other sensors are mounted next to the PID sensor. A diaphragm pump is installed inside the monitor enclosure to draw an air sample into the sensor manifold and then distribute it to all sensors.
Page 104: Maintenance Of Arearae & Arearae Gamma
MAINTENANCE FOR AREARAE 6.0 Maintenance: AreaRAE & AreaRAE Gamma Figure 6-1 Internal Components of AreaRAE Gamma 1. Gas Plate 2. Gas sensors 3. Gamma Sensor 4. Charcoal filter 5. Pump...
Page 105: Battery Replacement
AreaRAE or AreaRAE Gamma monitor upon returning from fieldwork. A fully charged battery powers an AreaRAE for up to 24 hours of continuous operation. The charging time is less than 10 hours for a fully discharged battery. The built-in charging circuit is controlled by two-step constant voltage/constant current charging to prevent overcharging.
Page 106: Sensor Replacement
Sensor Replacement Procedure The oxygen and combustible sensor both have unique sensor sockets in the AreaRAE. The toxic sensor socket in the AreaRAE allows plugging in any sensor selected from the series of toxic sensors offered by RAE Systems Inc.
Page 107: Gas Plate Of Arearae
MAINTENANCE FOR AREARAE Figure 6-2 Gas Plate of AreaRAE Figure 6-3 Detailed Sensor Assembly of AreaRAE Gamma 1. PID sensor 2. Toxic sensor 3. LEL sensor 4. Gamma sensor (toxic sensor 2 in AreaRAE) 5. O sensor...
Page 108 NOTE: The gamma radiation sensor installed in the AreaRAE Gamma does not usually need to be replaced unless it is damaged or malfunctioning. To replace the gamma sensor, remove the dummy sensor plug from the PCB and the gamma sensor module.
Page 109 Care must be exercised when cleaning the window surface so that it is not damaged. 1. Turn off the AreaRAE, make sure it has been disconnected from the battery charger, and then remove the battery pack.
Page 110 MAINTENANCE FOR AREARAE 5. Dip the entire PID sensor into GC-grade methanol. It is highly recommended that an ultrasound bath to be used to clean the sensor for at least 3 minutes. Then dry the sensor thoroughly. 6. If the lamp is operational, use a cotton swab to clean the flat window surface with GC-grade methanol.
Page 111 MAINTENANCE FOR AREARAE 6.4 Taking Care of the Lamp During the course of regular operation, the UV lamp will become contaminated. Therefore, the lamp requires periodic cleaning. The “Lamp” error is an indication of a problem with the lamp current. A dirty or contaminated sensor often causes high readings of the VOC sensor.
Page 112 When this occurs, it is necessary to replace the pump. 1. Turn off the AreaRAE, and remove the battery pack. 2. Refer to Figures 6-1, 6-2 and 6-3. Remove the four hex screws holding the instrument housing together.
Page 113 MAINTENANCE FOR AREARAE The dust filter should be changed when build-up of water droplets or dust is observed. To change the dust filters, pull apart the lock connections and replace the dust filter. 6-10...
Page 114 1. Gas Plate 2. Dust Filter 3. Pump 4. Sensors 5. Toxic 2 sensor (replaced by gamma sensor in AreaRAE Gamma Steel) WARNING To reduce the risk of ignition of hazardous atmospheres, open the enclosure only in areas known to be non-hazardous.
Page 115 MAINTENANCE FOR AREARAE STEEL 7.1 Opening The AreaRAE Steel 1. Turn off the AreaRAE Steel or AreaRAE Gamma Steel, and disconnect it from its power source. 2. Remove the antenna by unscrewing it. 3. Remove the handle. 4. Remove the four screw-in feet by turning them counterclockwise.
Page 116 10. Use a hex wrench to tighten each screw in alternation by 1/4 turn until all screws are tight. 11. Replace the handle. 12. Replace the four feet. 13. Replace the antenna. 14. Replace the battery and its cover plate. 15. Reconnect power to the AreaRAE Steel.
Page 117: Battery Replacement
AreaRAE Steel monitor upon returning from fieldwork. A fully charged battery powers the AreaRAE Steel monitor for up to 24 hours’ continuous operation. The charging time is typically less than 10 hours for a fully discharged battery. The built-in charging circuit is controlled by two-step constant voltage/constant current charging to prevent overcharging.
Page 118: Sensor Replacement
Each sensor module in the AreaRAE Steel includes a non- volatile memory, which records the manufacturing date of the sensor. The microprocessor checks the date code and display the expiration date of each sensor.
Page 119: Battery Connection
MAINTENANCE FOR AREARAE STEEL 4. Disconnect the rear battery cover and then disconnect the battery from the printed circuit board. Figure 7-3 Battery connection 5. Remove the three screws that hold down the gas piping plate to the printed circuit board. Remove the gas piping plate.
Page 120: Sensor Locations
10. Connect the battery pack to the printed circuit board, place the battery in its compartment, and replace the cover plate and its four screws. 11. Turn the AreaRAE Steel on, and the monitor automatically recognizes the sensors installed and configures the monitor accordingly.
Page 121 MAINTENANCE FOR AREARAE STEEL Special Bias Voltage for Toxic Sensors The NO and NH toxic sensors require a special 300 mV bias voltage to operate. Only the first toxic sensor socket provides such a special bias voltage. Therefore, NO or NH...
Page 122: Pid Sensor Cleaning/Replacement
Care must be exercised when cleaning the window surface so that it will not be damaged. 1. Turn off the AreaRAE Steel. Make sure it has been disconnected from the battery charger, and then remove the battery pack.
Page 123: Taking Care Of The Lamp
MAINTENANCE FOR AREARAE STEEL 7.6 Taking Care of the Lamp During the course of regular operation, the UV lamp becomes contaminated. Therefore, the lamp requires periodic cleaning. The “Lamp” error is an indication of a problem with the lamp current. A dirty or contaminated sensor often causes high readings of the VOC sensor.
Page 124: Sampling Pump Replacement
Figure 7-6 Sampling pump on gas plate 1. Turn off the AreaRAE Steel, and remove the battery pack. 2. Open the housing, and then carefully remove the gas piping plate. The pump is attached to the gas plate.
Page 125: Gas Plate Screw
MAINTENANCE FOR AREARAE STEEL 5. Unscrew the two screws that hold the pump assembly to the gas plate. Figure 7-8 Gas plate screw 6. Replace the old pump assembly with a new one. Connect the Tygon tubing to the gas inlet port. Reattach the pump.
Page 126: Troubleshooting
TROUBLESHOOTING 8. Troubleshooting To aid diagnosing problems in the AreaRAE and AreaRAE Steel, this chapter summarizes possible problems and suggested solutions. 8.1 Possible Problems & Solutions Problem Possible Reason Possible Solution No power after Drained battery Charge battery charging battery...
Page 127 TROUBLESHOOTING Troubleshooting Continued “Lamp” message Wrong threshold Adjust lamp during operation threshold Dirty PID sensor Clean PID sensor Weak or defective PID lamp Replace PID lamp Reading Incorrect calibration Calibrate monitor abnormally low Low sensitivity to the Replace sensor specific gas Check correction Wrong correction factor factor...
Page 128 TROUBLESHOOTING Troubleshooting Continued Excessive pump Leaky inlet path Check inlet noise connection Defective pump No inlet air Replace with a vacuum new pump Radio See Section 6.3 or 7.3. Communication Reading jumps Incorrect gas calibration around randomly Low sensitivity to calibration gas Cannot turn Microprocessor hang-up monitor off...
Page 129: Lamp Troubleshooting Details
To eliminate this possibility, apply some VOC sense by putting a permanent marker (such as a Magic Marker) close to the inlet of the AreaRAE and see if the VOC raw count goes up.
Page 130: Radio Communication Guide
(B) and proceed to hit ‘Begin’ (C). 2. POWER SUPPLY: Make sure that the AreaRAE Steel and modem are both turned on. If the AreaRAE Steel is in “Low Bat” alarm, then communication will fail. The battery pack must have at least 6.6V available for proper...
Page 131 ProRAE Remote Version 1.0 or 1.20. 3. MODE OF OPERATION: The AreaRAE must be in regular operation mode. An antenna symbol should appear on the AreaRAE LCD, indicating the host is attempting to pull information from the unit.
Page 132 Host, then the units must all have a different Unit ID. 8. MAX UNITS: The unit ID for he AreaRAE can be 1 to 32. By default the number of units the software attempts to communicate with is 8. If any of the sensing units have a higher unit ID than 8, then the “Define Max Units”...
Page 133 (B). If communication problems persist after going through steps 1 through 8, then contact RAE Systems Service at tech@raesystems.com or 888-723-4800. Updates: Watch for updates of this and other technical and application notes on the Internet at www.raesystems.com.
Page 134: Contact Information
CONTACT INFORMATION 9.0 RAE Systems Contact Information RAE Systems, Inc. (Main Office) 3775 N. First St. • San Jose, CA 95134-1708 • USA Tel: 408.952.8200 • Fax: 408.952.8480 Email: raesales@raesystems.com Sales: 877.723.2878 • Web: www.raesystems.com Technical Service: 888.723.4800 • Tech@raesystems.com RAE Systems Europe ApS Ørestads Boulevards 69...
Page 135 Web: www.raespain.com RAE Systems Middle East M: +45 2674 9791 or +97 50 429 1385 mjorgensen@raesystems.com RAE Systems (Hong Kong) Ltd. Room 8, 6/F, Hong Leong Plaza • 33 Lok Yip Road Fanling, N.T, Hong Kong Tel: +852.2669.0828 • Fax: +852.2669.0803...
Page 136 CONTACT INFORMATION SPECIAL NOTE: If the monitor needs to be serviced, contact either: • the RAE Systems distributor where the monitor was purchased; they will return the monitor on your behalf, or • the RAE Systems Technical Service department. Before...
Page 137 RAE Systems, Inc. World Headquarters 3775 N. First St. San Jose, CA 95134-1708 USA Phone: 408-952-8200 Fax: 408-952-8480 www.raesystems.com...

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