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Rae AreaRAE-Gamma PGM-5120 Operation & Maintenance Manual Download Page 101

TROUBLESHOOTING 

 

7-2 

7.1 Possible Problems & Solutions 

Problem 

Possible Reason 

Possible Solution 

No power after 
charging battery 

Drained battery 
Defective battery 
Microprocessor hang-up 

Charge battery 
Replace battery 
Disconnect then  
reconnect battery 
to reset computer 

No LED or LCD 
backlight 

Defective LED or LCD 
backlight 

Call authorized 
service center 

Lost password 

Forgot password 

Call authorized 
service center 

Buzzer 
inoperative 

Defective buzzer 

Call authorized 
service center 

Reading 
abnormally high 

Wrong calibration data 
Dirty sensor module 
Dirty external filter 
Excessive moisture 
and/or water 
condensation 
Wrong correction factor 

Calibrate with gas 
again 
Clean sensor 
module 
Replace external 
filter 
Blow dry sensor 
module 
Check correction 
factor 

“Lamp” message 
during operation 

Wrong threshold 
Dirty PID sensor 
Weak or defective PID 
lamp 

Adjust lamp 
threshold 
Clean PID sensor 
Replace PID lamp 

Reading 
abnormally low 

Incorrect calibration 
Low sensitivity to the 
specific gas 
Wrong correction factor 

Calibrate monitor 
Replace sensor 
Check correction 
factor 

Read a small 
background 
value when there 
is no detectable 
gas 

Sensor zero drifted 
The unit was out of 
battery power 
connection or the 
sensor just plugged in 

Do fresh air 
calibration (see 
section 4.4.1) 
Wait for reading to 
be stabilized 

(Continued)

Summary of Contents for AreaRAE-Gamma PGM-5120

Page 1: ...re of the following U S Patents 5 393 979 5 561 344 5 773 833 6 225 633 6 313 638 6 333 632 6 320 388 AreaRAE Gamma PGM 5120 WIRELESS MULTI GAS RADIATION MONITOR Operation Maintenance Manual Document...

Page 2: ......

Page 3: ...tor for several minutes the residual vapor in the detector chamber should clear and the reading should return to zero The battery of the AreaRAE Gamma Monitor will slowly drain even when it is not on...

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Page 6: ...or servicing Only the combustible gas detection portion of this instrument has been assessed for performance Before each day s usage sensitivity must be tested on a known concentration of methane gas...

Page 7: ...tecter les gaz combustibles de cet instrument a t valu e Avant chaque utilisation journali re v rifier la sensibilit avec une concentration connue de m thane quivalente a 20 50 de la pleine chelle La...

Page 8: ...y Packs 3 3 3 3 External Filter 3 5 3 4 Remote Sampling Probe or Teflon Tubing 3 6 3 5 Dilution Fitting 3 7 3 6 Calibration Adapter 3 8 4 Programming AreaRAE Gamma 4 1 4 1 Program Mode 4 2 4 2 Keys of...

Page 9: ...ion Ratio 4 44 4 8 5 Change PID Lamp Type 4 45 4 9 Exit Program Mode 4 46 5 Theory of Operation 5 1 6 Maintenance 6 1 6 1 Battery Replacement 6 2 6 2 Sensor Replacement 6 3 6 3 PID Sensor Cleaning Rep...

Page 10: ...alibration 2 17 4 1 Programming Keys 4 4 7 1 Critical Parameters 7 2 Figure Title Page 2 1 Front View Main Components 2 2 2 2 Right Side View Main Components 2 3 2 3 Left Side View Main Components 2 4...

Page 11: ...1 7 eV UV lamp Inorganic Compounds Substance Specific Electrochemical Sensor s Combustible Gases 0 100 LEL range with a catalytic bead sensor Oxygen Concentrations Electrochemical Sensor Gamma Radiati...

Page 12: ...ng Time Up to 24 hours of continuous operation Up to 36 hours of continuous operation with RF disabled Display Two line 16 character LCD with manual LED backlight Keypad MODE operation programming Y o...

Page 13: ...M Immunity No effect when exposed to 0 43 mW cm2 RF interference 5 watt transmitter at 12 inches Data Storage 20 000 readings 64 hours 5 channels at 1 minute intervals in non volatile memory Datalog I...

Page 14: ...SO2 0 20 ppm 0 1 ppm 35 sec NO 0 250 ppm 1 ppm 30 sec NO2 0 20 ppm 0 1 ppm 25 sec Cl2 0 10 ppm 0 1 ppm 60 sec O2 0 30 0 1 15 sec VOC 0 200 ppm 0 1 ppm 10 sec VOC 200 2000 ppm 1 ppm 10 sec LEL 0 100 1...

Page 15: ...and activates alarm signals when exposure exceeds preset limits Prior to factory shipment the AreaRAE Gamma is preset with default alarm limits and sensors are pre calibrated with standard calibratio...

Page 16: ...OPERATION OF AREARAE Gamma 2 2 2 1 Physical Description 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 1 2 4 3 5...

Page 17: ...E Gamma 2 3 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 Gamma to external DC for charging 4 Exte...

Page 18: ...OPERATION OF AREARAE Gamma 2 4 Figure 2 3 Left Side View Main Components 1 Battery Pack 2 Gas outlet 3 Mounting conduit 1 2 3...

Page 19: ...Key Function MODE Turn power on off Choose different display mode N Toggle backlight on off Answer No Decrease values Y Alarm test and alarm acknowledgment Turn latched alarm off Turn pump or LEL sen...

Page 20: ...he sensor will be displayed followed by a message that the alarm limits have been reset to the default values for the new sensor Warranty expiration date for each sensor Preset alarm limits for each s...

Page 21: ...30 minutes the real time clock will be lost In this case the user needs to enter the real time clock information again as described in Section 4 7 5 Datalog monitor versus Non Datalog monitor There ar...

Page 22: ...OPERATION OF AREARAE Gamma 2 8 2 5 Modes of Operation The AreaRAE Gamma offers three different modes of operation Text Mode Display Mode Program Mode...

Page 23: ...stantaneous Gas Concentration reading and the Sensor Name after the monitor is turned on The user can press MODE to see the Instantaneous Gas Concentration reading Battery Voltage or may enter the PC...

Page 24: ...toxic or VOC gases percent of volume for oxygen and percent LEL for combustible gases TOX1 VOC Gamma 0 0 0 0 0 20 9 LEL OXY The sensor names display CO toxic sensor VOC PID sensor LEL combustible gas...

Page 25: ...second with a Peak message TOX1 VOC Gamma 5 2 0 3 10 Peak 20 9 LEL OXY 5 The minimum reading is the lowest reading of each gas concentration since the monitor was turned on Readings are updated every...

Page 26: ...hen the battery voltage falls below 6 6 volts a flashing Bat will appear as a warning message This means there will be approximately 20 30 minutes of operating time remaining before the monitor automa...

Page 27: ...the serial port on a PC The monitor is ready to receive any command from the PC Press MODE again to return to the first display NOTE When the monitor is in communication standby mode it stops monitori...

Page 28: ...ated in every minute and is displayed with the current date time and temperature TOX1 VOC Gamma Mar 11 02 8 30 On 3 50 20 C LEL OXY 2 The monitor will display the selected LEL and VOC gas name if the...

Page 29: ...tes of operating time remaining before the monitor automatically turns off as the battery voltage falls below 6 4 V Alarm Signal Disabled It is extremely important to note that the alarm signals are d...

Page 30: ...3 beeps flash per second LEL Sensor name and Off PID lamp failure 3 beeps flashes per second Lamp Low battery 1 beep flash per minute Bat Memory full 1 beep flash per minute Mem Alarm Signal Testing U...

Page 31: ...rned on by pressing and holding N for one second Press N a second time to turn off If N is not pressed the back light will automatically turn off after preset time out period set by ProRAE Suite to sa...

Page 32: ...mits Calibration Gas ppm Cal Gas Balance Unit TWA STEL Low High CO 50 Air ppm 35 100 35 200 H2S 10 N2 ppm 10 15 10 20 SO2 5 N2 ppm 2 5 2 10 NO 25 N2 ppm 25 25 25 50 NO2 5 Air ppm 1 1 1 10 Cl2 10 N2 pp...

Page 33: ...rganic compounds like diesel fuel and jet fuels Here are some suggestions for monitoring such compounds Remove the external filter for normal calibration and operation which increases the pump speed t...

Page 34: ...tions Most of the datalogging options may be programmed from the monitor When the monitor is connected to a PC additional options may be programmed and then downloaded to the monitor There are four op...

Page 35: ...n the event header followed by the measurement data Datalogging Pause Datalogging will automatically pause under the following conditions 1 Upon entering Program Mode Datalogging will resume upon exit...

Page 36: ...er External filter and remote sampling probe Dilution fitting Calibration adapter WARNING To reduce the risk of ignition of hazardous atmospheres recharge battery only in area known to be non hazardou...

Page 37: ...ndicates the battery is charging A green light indicates the battery is fully charged 3 A completely drained AreaRAE Gamma monitor will be charged to full capacity within 10 hours NOTE The rechargeabl...

Page 38: ...tery 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 Gamma alkaline batte...

Page 39: ...Before removing or replacing the battery pack please make sure the AreaRAE Gamma monitor is located in a non hazardous area and is not connected to the charger 2 To remove the battery pack unscrew th...

Page 40: ...port of the monitor A male Luer connector fits into the female Luer of the external filter To remove the external filter disconnect the Luer connector There are some vapors that are especially reacti...

Page 41: ...t Teflon remote sampling probe with a telescoping handle is also available for The user who need to probe hard to reach areas such as ceilings storage tanks underground manholes etc Connect the male L...

Page 42: ...be used under oxygen deficient conditions The dilution fitting may also be used to measure combustible VOC or toxic gases when concentrations exceed the upper limit of the sensor range To use the dilu...

Page 43: ...designed to slip over the external filter During calibration connect the calibration adapter to the cylinder of the calibration gas Then insert adapter into external filter and allow the gas to flow...

Page 44: ...d to provide user friendly operation The display shows menu options and the key pad is used for menu selection and data entry NOTE Real time monitoring of gas concentrations continues during Program M...

Page 45: ...Alarm Limits Change Datalog Change Monitor Setup Change Sensor Configuration Each menu item includes several submenus with additional programming functions Refer to Appendix A for a more detailed menu...

Page 46: ...m Mode Table 4 1 Programming Keys Key Function MODE Exit menu when press momentarily or exit data entry mode when pressed and held for 1 second Y Increase numerical value for data entry Answer yes N D...

Page 47: ...ry shipment the AreaRAE Gamma monitor was installed with 0000 as the default password For added security 0000 is always displayed instead of the actual password 5 If the digit value is not 0 use Y or...

Page 48: ...9 9 9 9 9 Enable Disable Datalog 9 9 9 9 9 9 9 9 9 Change Monitor Setup Change Unit ID Unit Host 9 9 9 9 9 9 9 9 9 Change ID Site User 9 9 9 9 9 9 9 9 9 Change Alarm Mode 9 9 9 9 9 9 9 9 9 Change User...

Page 49: ...ibrate sensors in the AreaRAE Gamma 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 toxi...

Page 50: ...ibrate Monitor is the first menu item Press Y to perform calibration The first submenu is Fresh Air Calibration 2 If a bottle of fresh air is being used attach the calibration adapter to the gas inlet...

Page 51: ...fore initiating the calibration sequence Some firmware versions use a fixed 60 second calibration time some newer versions automatically apply the full calibration time After completing the zero calib...

Page 52: ...will be calibrated using the multi component mixture Press Y to continue or N to change choice of sensors to be adjusted TOX1 VOC Gamma CO LEL OK _ _ _ LEL OXY 2 Press Y to continue and the instrumen...

Page 53: ...om Step 1 of this section if N is pressed the display shows all the sensor names which are selected for multiple sensor calibration with the cursor blinking at the first sensor location TOX1 VOC Gamma...

Page 54: ...readings For example some VOC gases are known to cause erroneous readings by the CO sensor In general it is recommended to calibrate the two toxic sensors combustible and oxygen sensor with a bottle...

Page 55: ...ighlighted sensor and start the calibration Or press MODE to move to the next sensor location TOX1 VOC Gamma CO VOC LEL pick OXY LEL OXY Turn on the valve of the CO gas bottle to start gas flow Displa...

Page 56: ...en sensor measures a range of 0 to 30 of oxygen in the air During fresh air calibration the oxygen sensor is calibrated to fixed 20 9 of oxygen During single sensor calibration the user may supply a p...

Page 57: ...o to Step 3 Otherwise press and hold MODE for one second to accept the previously stored span gas value and advance to the next submenu Change LEL VOC Span Gas 3 Starting from the far left digit of th...

Page 58: ...OXY Otherwise the message No LEL installed will appear 2 If the user does not want to change the LEL span gas press Y to accept the current selection and exit this submenu 3 If the user wants to sele...

Page 59: ...press Y to accept the current selection and exit this submenu 7 If the user wants to select a different VOC span gas press N first then use Y or N to scroll through a list of gas names until a desire...

Page 60: ...limit low alarm limit STEL alarm limit or average alarm limit The average alarm limit can be Running Average or TWA Time Weight Average depending on the menu selection on Change Averaging Method see S...

Page 61: ...flashing digit will move on to the next digit to its right Repeat this process until all the new Alarm limits are entered Press and hold MODE for 1 second to exit data entry mode If there is any chan...

Page 62: ...at a specified interval The user can change datalog setup from the Program Mode The user can also program additional datalog options by downloading from the PC to the AreaRAE Gamma monitor These are...

Page 63: ...centration and run time values which are stored in the other location 1 Clear All Data is the second item in the Datalog submenu 2 Press Y to clear the data memory Display shows Are You Sure to re con...

Page 64: ...hange the digit value and press MODE momentarily to advance to the next digit The flashing digit will move to the next digit to the right Repeat this process until all 4 digits of the new period are e...

Page 65: ...the currently displayed data type and automatically goes into View Datalog Press N to change to the other data type Data Type Peak Press MODE to exit this submenu and move on to the next submenu 3 If...

Page 66: ...ed with an next to the sensor name The cursor is blinking at the first sensor location Press Y to enable the datalogging for the sensor and N to disable the datalogging TOX1 VOC Gamma CO VOC Gmma LEL...

Page 67: ...ge User ID Change Host ID Change Alarm Mode Change Net ID Change User Mode Change User Mode Change Real time Clock Change Real time Clock Change Light and Buzzer Mode Change Light and Buzzer Mode Chan...

Page 68: ...ng 2 Press the Y or N to cycle through all 26 letters and 10 numerals Press MODE momentarily to advance to the next digit The flashing digit will move to the next digit to the right Repeat this proces...

Page 69: ...to cycle through all 26 letters and 10 numerals Press MODE momentarily to advance to the next digit The flashing digit will move to the next digit of its right Repeat this process until all 8 digits o...

Page 70: ...Y the display shows the current alarm mode selection Alarm Mode Latched 2 Press Y to accept the currently displayed alarm mode Press N to change to the other alarm mode Alarm Mode Auto Reset Press MO...

Page 71: ...Y the display shows the current user mode selection User Mode Program 2 Press Y to accept the currently displayed user mode Press N to scroll through the other two user modes Press MODE to exit this s...

Page 72: ...me hh mm with the left most digit of the date flashing 2 To modify this value use the Y or N to change the digit value and press MODE momentarily to advance to the next digit The flashing digit will m...

Page 73: ...to accept option and advance to the Change Password menu the light will turn on and the buzzer will sound during alarm conditions Otherwise press N to decline and move to the next submenu 3 When the d...

Page 74: ...peat this process until all 4 digits of the new password are entered 3 Press and hold MODE for 1 second to exit the data entry mode and move to the next monitor setup submenu 4 If there is any change...

Page 75: ...e by setting the duty cycle to 100 The duty cycle is also disabled during system warm up PC communication mode programming mode and diagnostic mode 1 At the Change Duty Cycle display press Y to enter...

Page 76: ...ow setting 300cc flow per minute may be selected when the operating conditions are slow to change Low may also be used to prolong pump motor life LEL sensor life and battery run time 1 When the Change...

Page 77: ...n the Change Averaging Method screen appears press Y the display will show the first current average selection Average Type TWA 2 Press Y to accept the currently displayed type and the display automat...

Page 78: ...When the Change Display Language screen appears press N to keep the language setting in English User will advance to next menu option Set Temperature Unit 2 To switch language to Spanish press Y to en...

Page 79: ...et Temperature Unit display press Y The next screen to appear will either be Temperature Unit Fahrenheit or Temperature Unit Celsius 2 Press N to toggle between units of measurement Then press Y when...

Page 80: ...related configurations of the AreaRAE Gamma monitor The Sensor Configuration Submenu contains the various configurations Change LEL VOC Gas Selection Enable Disable Sensors Change Dilution Ratio Chan...

Page 81: ...oose one gas from the list to be the calibration gas and another gas to be the measurement gas For example the user can choose methane as the calibration gas for the LEL sensor and select pentane as t...

Page 82: ...xture of gases 1 Change LEL VOC Gas Selection is the first submenu item Press Y If an LEL sensor is installed the display shows TOX1 VOC Gamma LEL Gas Methane LEL OXY Otherwise the message No LEL inst...

Page 83: ...ange to the existing value the display shows Save Press Y to accept the new value and exit the gas selection submenu Press the N to discard the changes 7 If the VOC sensor is installed the display wil...

Page 84: ...en starting from the left most digit use the Y or N to change the digit value and press MODE momentarily to advance to the next digit The flashing digit will move on to next digit to its right Repeat...

Page 85: ...ly enabled sensor is marked by an next to the sensor name The cursor will blink at the first sensor location Press Y to enable the sensor and N to disable the sensor TOX1 VOC Gamma CO VOC Gmma LEL pic...

Page 86: ...y shows the current dilution ratio Dilution Ratio xx with the left most digit flashing 2 Press the Y or N to increase or decrease the value of the digit Press MODE momentarily to advance to the next d...

Page 87: ...to exit this submenu and move to the next submenu 3 If there is any change to the existing selection press Y and the display will show Save Then press Y to accept the N to discard and move to the next...

Page 88: ...am 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 2nd tier submenu level press MODE twice 3 To return...

Page 89: ...e installed in the monitor to measure inorganic toxic gases Many different types of toxic sensors are offered they can be plugged into the toxic gas sensor socket and are interchangeable A catalytic b...

Page 90: ...volatile memory so that it can be sent to a PC for record keeping RS 232 transceivers provide a serial interface between the monitor and the serial port of a PC A 2 line by 16 character LCD display i...

Page 91: ...MAINTENANCE 6 1 6 Maintenance Figure 6 1 Internal Components of AreaRAE Gamma 1 Gas Plate 2 Sensors 3 Dust filter 4 Pump 3 3 2 4 1 4...

Page 92: ...dwork A fully charged battery powers an AreaRAE Gamma monitor for up to 24 hours continuous operation The charging time is less than 10 hours for a fully discharged battery The built in charging circu...

Page 93: ...d display the expiration date of each sensor It is suggested that the user should replace the sensor when the current date exceeds the expiration date of a sensor Sensor Replacement Procedure The oxyg...

Page 94: ...MAINTENANCE 6 4 Figure 6 2 Gas Plate of AreaRAE Gamma Figure 6 3 Detailed Sensor Assembly of AreaRAE Gamma 1 PID sensor 2 Toxic sensor 3 LEL sensor 4 Gamma sensor 5 O2 sensor 1 3 4 5 2...

Page 95: ...d 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 Replace it with a new module and reconnect the...

Page 96: ...splay an error message of Lamp to indicate cleaning or replacing of the lamp is required Periodic cleaning of the lamp window will also remove film deposits and restore lamp sensitivity Care must be e...

Page 97: ...surface with GC grade methanol If the lamp does not turn on remove the UV lamp 7 Install a new lamp avoiding contact with the flat window surface 8 Reinstall the PID sensor Install the shielding cap 9...

Page 98: ...rative lamp often causes low readings or no response to test gas If the UV lamp is on while the error message persists then it is necessary to adjust the lamp threshold Please refer to Chapter 7 on ad...

Page 99: ...e gas plate Unscrew the two screws that holding the pump to the PCB Disconnect the Tygon tubing that connects the pump to the gas inlet port 4 Replace with a new pump assembly Connect the Tygon tubing...

Page 100: ...ostic Mode and refers to the table in Section 7 2 the user can usually narrow the problem down and correct it without having to return the monitor for repair WARNING The diagnostic mode allows the use...

Page 101: ...external filter Excessive moisture and or water condensation Wrong correction factor Calibrate with gas again Clean sensor module Replace external filter Blow dry sensor module Check correction factor...

Page 102: ...ration error message No standard gas input Make sure standard gas flows into monitor Bat message in operation Uncharged battery Recharge battery Full scale measurement in humid environment Dirty or we...

Page 103: ...tor display during the power on sequence This phenomenon is more significant in 0 25 UV lamps used in the AreaRAE Gamma because of the relatively small lamp size To solve this problem turn on and off...

Page 104: ...e is being used for the appropriate application Troubleshooting Steps 1 COMPATIBILITY Refer to the compatibility chart to verify that the firmware on the AreaRAE Gamma s and the version of the ProRAE...

Page 105: ...rvice at tech raesystems com 5 COM PORT The same communication port that the RS232 cable is plugged into must be selected in the software Within the ProRAE Remote proceed to Set Up A Host RF Modem Por...

Page 106: ...nter the Programming Mode Hit N until the Change Monitor Setup screen appears Hit Y to enter this menu and then proceed to hit N until the Change Unit ID screen is reached Hit Y to enter this submenu...

Page 107: ...teps one through eight then please email RAE Systems at tech raesystems com Updates Watch for updates of this and all of other technical and application notes on the Internet at www raesystems com Dis...

Page 108: ...723 2878 Tubes Sales 888 723 8823 Technical Support 888 723 4800 E mail RaeSales raesystems com Tech raesystems com Website www raesystems com SPECIAL NOTE Before returning the unit for service or re...

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