RKI Instruments EAGLE 2 User manual

EAGLE 2
Operator’s Manual
Part Number: 71-0154RK
Revision: EE
Released: 4/13/22
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EAGLE 2 Manual
WARNING
Read and understand this instruction manual before
operating instrument. Improper use of the gas monitor
could result in bodily harm or death.
Periodic calibration and maintenance of the gas monitor is
essential for proper operation and correct readings. Please
calibrate and maintain this instrument regularly!
Frequency of calibration depends upon the type of use you
have and the sensor types. Typical calibration frequencies
for most applications are between 1 and 3 months, but can
be required more often or less often based on your usage.
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EAGLE 2 Manual
Table of Contents
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
About the EAGLE 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 2: Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Instrument Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Printed Circuit Boards (PCBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Alarm LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Infrared Communications Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Battery Case & Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Flow System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Standard Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Shoulder Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Hose and Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rechargeable Ni-MH Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Chargers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Optional Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
External Dilution Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 3: Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Turning On the EAGLE 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Performing a Demand Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Turning Off the EAGLE 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Using the Battery Charger for Continuous Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Measuring Mode, Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Monitoring an Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Using Optional Sample Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Using Exhaust Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Combustible Gas Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Monitoring Combustible Gas in the PPM or %Volume Ranges. . . . . . . . . . . . . . 35
Measuring Mode, Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Resetting and Silencing Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Responding to Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Data Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
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EAGLE 2 Manual
Chapter 4: Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Tips for Using Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Peak Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Battery Voltage Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Gas Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Catalytic (LEL) Sensor Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Methane Elimination Mode Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Relative Response Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
STEL Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
TWA Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
View Alarm Settings Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Select User ID Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Select Station ID Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Time in Operation Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Date/Time Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Data Logging Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Chapter 5: Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Calibration Supplies and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Entering Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Calibrating Using the Auto Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Setting the Fresh Air Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Performing a Span Adjustment in Auto Calibration . . . . . . . . . . . . . . . . . . . . . . 56
Calibrating Using the Single Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Setting the Fresh Air Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Performing a Span Adjustment in Single Calibration . . . . . . . . . . . . . . . . . . . . . 61
Chapter 6: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Replacing or Recharging the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Replacing the Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Recharging the Ni-MH Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Replacing the Hydrophobic Probe’s Particle Filter and Hydrophobic Filter Disk . . . . . 70
Replacing the Hydrophobic Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Replacing the Charcoal Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Checking the Combustible Gas Sensor’s Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Replacing a Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Chapter 7: General Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Appendix A: Calibrating with a Sample Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Calibration Supplies and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Entering Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Calibrating Using the Auto Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Setting the Fresh Air Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Performing a Span Adjustment in Auto Calibration . . . . . . . . . . . . . . . . . . . . . . 84
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EAGLE 2 Manual
Calibrating Using the Single Calibration Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Setting the Fresh Air Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Performing a Span Adjustment in Single Calibration . . . . . . . . . . . . . . . . . . . . . 89
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Appendix B: Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Tips for Using Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Using Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Setting the Date Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Setting the Battery Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Configuring the Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Configuring the Combustible Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Setting the Catalytic Detection Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Updating the Relative Response Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Updating the Alarm Point Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Updating the Alarm Latching Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Updating the Alarm Silence Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Turning the User/Station ID Function On or Off . . . . . . . . . . . . . . . . . . . . . . . . 108
Updating the Autocal Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Updating the Backlight Delay Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Updating the Auto Fresh Air Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Updating the Data Log Interval Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Updating the Data Log Overwrite Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Updating the Data Log Memory Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Updating the LCD Contrast Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Updating the Calibration Reminder Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Updating the Calibration Past Due Action Setting . . . . . . . . . . . . . . . . . . . . . . 112
Updating the Calibration Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Updating LC/BH Mode Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Setting the Bar Hole Measurement Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Zero Follower Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Zero Suppression Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Updating the Confirmation Alert Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Turning the Password Function On or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Restoring the Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Updating the Lunch Break Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Updating the Span Factor Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Updating the Language Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Exiting Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Appendix C: Sub PCBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Channel Setup and Sub PCBs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Sub PCBs and CONFIGURE CHANNELS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Sub PCBs and CONFIGURE GASES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
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EAGLE 2 Manual
Appendix D: PID Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
PID Sensor and Sensor Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
PID Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
PID Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Start Up and Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
PID Relative Response Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
PID Sensor Relative Response Screen in Display Mode . . . . . . . . . . . . . . . . . . 129
PID Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Calibrating with a 4-Gas Cylinder and a PID Cylinder. . . . . . . . . . . . . . . . . . . 132
Calibrating with a 5-Gas Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Cleaning the PID Sensor’s Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Replacing PID Sensor’s Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Replacing Electrode Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Replacing the PID Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Configuring the PID Gas in Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Appendix E: ESM-01 Toxic Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
ESM-01 Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
ESM-01 Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Start Up and Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
ESM-01 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Calibrating with a 4-Gas Cylinder and an ESM-01 Cylinder . . . . . . . . . . . . . . 165
Calibrating with a 5-Gas Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Replacing the ESM-01 Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Replacing the H2S Scrubber in the SO2and HCN Sensors . . . . . . . . . . . . . . . . 180
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Appendix F: TC Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
TC Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
TC Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Start Up and Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Catalytic (LEL) Sensor Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
TC Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Replacing the TC Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Configuring the TC Gas in Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
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Appendix G: Infrared Carbon Dioxide Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Infrared Carbon Dioxide Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Infrared Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
CO2Scrubber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Start Up and Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Performing a Demand Zero for Carbon Dioxide Sensors . . . . . . . . . . . . . . . . . 203
Infrared Carbon Dioxide Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Replacing the IR CO2Sensor or Changing Sensor Type . . . . . . . . . . . . . . . . . . 212
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Appendix H: Infrared Methane Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Target Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Infrared Methane Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Infrared Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Start Up and Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Detection Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Catalytic (LEL) Sensor Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Infrared Methane Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Replacing the IR Methane Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Appendix I: Infrared Hydrocarbon Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Target Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Infrared Hydrocarbon Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Infrared Sub PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Start Up and Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
0-100 %LEL/2.0-30.0 %vol Autoranging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Catalytic (LEL) Sensor Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Infrared Hydrocarbon Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Replacing the IR Hydrocarbon Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Appendix J: Methane Elimination Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Monitoring in Methane Elimination Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
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Appendix K: Using the EAGLE 2 in Bar Hole Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Start Up, Bar Hole Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Turning on EAGLE 2, Bar Hole Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Performing a Demand Zero, Bar Hole Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Bar Hole Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Performing a Bar Hole Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Turning off the EAGLE 2, Bar Hole Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Appendix L: Using the EAGLE 2 in Leak Check Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Start Up, Leak Check Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Turning On the EAGLE 2, Leak Check Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Performing a Demand Zero, Leak Check Mode . . . . . . . . . . . . . . . . . . . . . . . . . 253
Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Locating a Leak. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Turning the Buzzer On and Off In Leak Check Mode. . . . . . . . . . . . . . . . . . . . . 254
Turning Off the EAGLE 2, Leak Check Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Appendix M: EAGLE 2 Tank Tester Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
Float Probe Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Dilution Fitting (1:1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Appendix N: Using the EAGLE 2 in Inert Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Appendix O: Transformer Gas Tester Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Appendix P: Internal Dilution Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
WARNING: Understand manual before operating. Substitution of components may impair
intrinsic safety. To prevent ignition of a hazardous atmosphere, batteries must
only be changed or charged in an area known to be nonhazardous. Not tested
in oxygen enriched atmospheres (above 21%).
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NOTE: RKI Instruments, Inc. recommends that you refer to ISA-RP12.13, Part II-1987 or an
equivalent international recommended practice for guidance in the use of combustible
gas detection instruments.
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10 • Chapter 1: Introduction EAGLE 2 Manual
Chapter 1: Introduction
Overview
This chapter briefly describes the EAGLE 2 gas monitor. This chapter also describes the EAGLE
2 Operator’s Manual (this document). Table 1 at the end of this chapter lists the specifications for
the EAGLE 2.
About the EAGLE 2
Using an advanced detection system consisting of up to six gas sensors, the EAGLE 2 sample
draw gas monitor is capable of detecting the presence of combustible gas, oxygen (O2), carbon
monoxide (CO), hydrogen sulfide (H2S), and various other toxic gases simultaneously. The
EAGLE 2’s rugged, reliable, and easy-to-use design makes it ideally suited for a wide range of
applications, including sewage treatment plants, utility manholes, tunnels, hazardous waste sites,
power stations, petrochemical refineries, mines, paper mills, drilling rigs, and fire fighting
stations. The EAGLE 2 offers a full range of features including:
• Simultaneous monitoring of one to six gases. The standard configuration includes four sensors
for combustible gas (%LEL, ppm, and %volume), oxygen, carbon monoxide (CO), and
hydrogen sulfide (H2S).
• Choice of three operating modes:
• Normal Mode for typical confined space or area monitoring. Normal Mode is the
standard factory setting.
• Bar Hole Mode for checking of bar holes when searching for underground gas leaks
• Leak Check Mode for locating leaks in valves and piping
• Sample-drawing pump with up to 125 foot range
• Liquid crystal display (LCD) for complete and understandable information at a glance
• Ultrabright alarm LEDs
• Distinctive audible alarm for dangerous gas conditions or unit malfunction
• Microprocessor control for reliability, ease of use, and advanced capabilities
• Data logging functions (when used in Normal Mode)
• Alarm trend data (when used in Normal Mode)
• STEL and TWA (when used in Normal Mode) and over range alarms
• Peak readings (when used in Normal Mode)
• Built-in time function
• Lunch break feature
• RF shielded high impact plastic case
• CSA classified for Class I, Division I, Groups A, B, C, and D hazardous atmospheres
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EAGLE 2 Manual Chapter 1: Introduction • 11
WARNING: The Model EAGLE 2 detects oxygen deficiency, elevated levels of oxygen,
combustible gases, carbon monoxide, and hydrogen sulfide, all of which can be
dangerous or life threatening. When using the EAGLE 2, you must follow the
instructions and warnings in this manual to assure proper and safe operation
of the unit and to minimize the risk of personal injury. Be sure to maintain and
periodically calibrate the EAGLE 2 as described in this manual.
NOTE: ONLY THE COMBUSTIBLE GAS DETECTION PORTION OF THIS
INSTRUMENT HAS BEEN ASSESSED FOR PERFORMANCE.
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12 • Chapter 1: Introduction EAGLE 2 Manual
Specifications
Table 1: Standard Sensor Specifications
Combustible Gas,
Methane (CH4)
Calibration Standard
Oxygen (O2) Hydrogen
Sulfide (H2S)
Carbon
Monoxide (CO)
Detection Range 0 - 100 %LEL 0 - 40 volume% 0 - 100.0 ppm 0 - 500 ppm
Reading
Increment
1 %LEL 0.1 volume % 0.5 ppm 1 ppm
Alarm 1
Factory Setting
10 %LEL* 19.5 volume %* 5.0 ppm* 25 ppm*
Alarm 2
Factory Setting
50 %LEL 23.5 volume % 30.0 ppm 50 ppm
STEL Alarm n/a n/a 5.0 ppm 200 ppm
TWA Alarm n/a n/a 1.0 ppm 25 ppm
* When calibrating the EAGLE 2 with the Auto Calibration or the Single Calibration method, the calibration gas value must
be equal to or higher than the alarm 1 setting. See “Updating the Alarm Point Settings (ALARM POINTS)” on page 105 for
instructions to change the alarm points if necessary for the desired calibration gas value.
Table 2: EAGLE 2 Specifications
Sampling
Method
Sample Draw
Response
Time
T90 Within 30 Seconds
Display Graphics LCD Display
Operating
Temperature
& Humidity
-20°C to 50°C/Below 85% RH (Without Condensation)
Indication
Accuracy
Combustible Gas (LEL), Catalytic Type Sensor
•-10°Cto40
°C: 5% of full scale
•-20°Cto50
°C: 6% of full scale
Combustible Gas (ppm), Catalytic Type Sensor
• ± 25 ppm or ± 5% of reading (whichever is greater)
Oxygen
• ± 0.5% O2
Hydrogen Sulfide
• ± 5% of reading or ± 2 ppm H2S (whichever is greater)
Carbon Monoxide
• ± 5% of reading or ± 5 ppm CO (whichever is greater)
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EAGLE 2 Manual Chapter 1: Introduction • 13
About this Manual
The EAGLE 2 Operator’s Manual uses the following conventions for notes, cautions, and
warnings.
NOTE: Describes additional or critical information.
CAUTION: Describes potential damage to equipment.
WARNING: Describes potential danger that can result in injury or death.
Safety/
Regulatory
186718
CSA classified as Intrinsically Safe. Exia. Class I, Groups A, B, C, & D. Temperature
Code T3C.
Power Supply • Four C size alkaline batteries, standard
• Four C size Ni-MH batteries, optional
Continuous
Operating
Hours
@ 25 °C
• Alkaline Batteries: 16 Hours (Non Alarm Operation, Fully Charged)
• Ni-MH Batteries: 18 Hours (Non Alarm Operation, Fully Charged)
Case High-impact Plastic, RF Shielded, Dust and Weather Proof
Standard
Accessories
• 5 foot hose
• Hydrophobic probe
• Shoulder Strap
Optional
Accessories
• Rechargeable NiMH Batteries
• 115 VAC Charger
• 12 VDC Charger
• Hoses of Various Lengths, See “Chapter 7: General Parts List” on page 78.
• Dilution Fitting (1:1 and 3:1)
• Various Probes, See “Chapter 7: General Parts List” on page 78
• Product CD, includes Data Logger Management Program and Maintenance Data
Loader Program
• IrDA/USB Cable for connecting to a computer when using the Data Logger
Management Program and Maintenance Data Loader Program (not needed if
computer has an infrared port)
Dimensions
and Weight
Approximately 171(H) x 65(W) x 39(D) mm (5.6”H x 2.5”W x 1.5”D)
Approximately 310 g (11 oz.)
Table 2: EAGLE 2 Specifications
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14 • Chapter 2: Description EAGLE 2 Manual
Chapter 2: Description
Overview
This chapter describes the EAGLE 2 instrument and accessories.
Instrument Description
The EAGLE 2 includes the case, sensors, LCD, control buttons, printed circuit boards, alarm
LEDs, infrared communication port, buzzer, battery case and batteries, and flow system.
LCD Display
Control Buttons
Alarm LEDs
RANGE
SHIFT
DISPLAY
ADJUST
NO
AIR
YES
PO WER
ENTER
RESET
Inlet Fitting
Figure 1: Component Location, Top View
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EAGLE 2 Manual Chapter 2: Description • 15
Top Case
Bottom Case
Strap
Case Foot, 6X
Handle
Case Screw, 3X
(Hidden From view)
Figure 2: Component Location, Side View
Buzzer
Inlet Fitting
Exhaust Fitting
Battery Case
Thumbscrew
Charging Jack
Infrared Port
Figure 3: Component Location, Front & Back Views
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16 • Chapter 2: Description EAGLE 2 Manual
Case
The EAGLE 2’s sturdy, high-impact plastic case is radio frequency (RF) resistant and is suitable
for use in many environmental conditions, indoors and out. The case is dust proof and water
resistant. It’s two main components, the top case and bottom case, are held together with three
screws located on the bottom case. The interface between the top case and bottom case is
gasketed. A sturdy, well balanced handle on the top case allows you to hold the instrument
comfortably. A clear plastic window is located on the top case to the front of the handle for
viewing the LCD.
A removable battery case is located at the rear of the bottom case. A thumbscrew secures the
battery case to the bottom case. The interface between the battery case and the bottom case is
gasketed. Six raised feet on the bottom of the case, four on the bottom case and two on the battery
compartment, raise the EAGLE 2 slightly from the surface on which it rests.
Sensors
The EAGLE 2 uses up to six sensors to monitor combustible gas, oxygen (O2), carbon monoxide
(CO), hydrogen sulfide (H2S), and various other toxic gases simultaneously. The sensors are
located inside the EAGLE 2 bottom case and are installed in the flow chamber. The sensors
described below are the four standard sensors. See pg. 124 for a description of the PID sensors,
pg. 163 for a description of the ESM-01 toxic sensors, pg. 184 for a description of the TC sensors,
pg. 200 for a description of the IR CO2sensors, pg. 214 for a description of the IR methane
sensors, and pg. 226 for a description of the IR hydrocarbon sensor. The standard sensors use
different detection principles as described below.
Catalytic Combustible Gas Sensor (LEL Sensor)
The catalytic combustible gas (LEL) sensor detects combustible gas in the %LEL range. It uses a
catalytic element for detection. The reaction of gas with oxygen on the catalyst causes a change in
the resistance of the element which changes the current flowing through it. The current is
amplified by the EAGLE 2’s circuitry, converted to a measurement of combustible gas
concentration, and displayed on the LCD.
The LEL sensor housing includes a sintered metal flame arrestor on one end that allows gas to
diffuse into the sensor. On the other end, five pins extend from the sensor. The sensor cable
connects to these pins on one end and terminates in a four-position connector on the other end
which plugs into the HC socket on the main PCB (see Figure 5 on page 19).
Oxygen Sensor
The O2sensor is a galvanic type of sensor. A membrane behind the openings on the sensor face
allows gas to diffuse into the sensor at a rate proportional to the partial pressure of oxygen. The
oxygen reacts in the sensor and produces a voltage proportional to the concentration of oxygen.
The voltage is measured by the EAGLE 2’s circuitry, converted to a measurement of gas
concentration, and displayed on the LCD.
The sensor includes a short cable that terminates in a round 7-position connector. It mates with the
OXY pins on the main PCB (see Figure 5 on page 19).
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EAGLE 2 Manual Chapter 2: Description • 17
CO and H2S Sensors
The CO and H2S sensors are electrochemical sensors that consist of three precious metal
electrodes in a dilute acid electrolyte. A gas permeable membrane covers the sensor face and
allows gas to diffuse into the electrolyte. The gas reacts in the sensor and produces a current
proportional to the concentration of the target gas. The current is amplified by the EAGLE 2’s
circuitry, converted to a measurement of gas concentration, and displayed on the LCD.
The CO and H2S sensors are physically very similar. Except for their markings and wire colors,
they look almost identical. A three-position connector at the end of a 2-wire cable from each
sensor plugs into a socket on the main PCB. The sockets on the main PCB for the CO and H2S
sensors are labeled CO and H2S. Normally, the CO connector plugs into the CO socket and the
H2S plugs into the H2S socket. However, because of the way that the main PCB circuitry is
arranged, if the CO sensor is plugged into the H2S socket and the H2S sensor is plugged into the
CO socket, the sensors will still operate properly and the CO and H2S readings will still appear on
the channels that are programmed for those gases.
LCD
A digital LCD (liquid crystal display) is visible through a clear plastic window in the top case.
The LCD simultaneously shows the gas reading for all installed sensors. The LCD also shows
information for each of the EAGLE 2’s operating modes.
Control Buttons
Four control buttons are located below the LCD. They are, from left to right, POWER ENTER
RESET, DISPLAY ADJUST NO, AIR ▲YES, and RANGE ▼SHIFT.
Button Function(s)
POWER ENTER
RESET
• turns the EAGLE 2 on and off
• silences and resets audible alarm if Alarm Latching is set to
Latching and Alarm Silence is set to ON
• enters instructions, values, and settings into the EAGLE 2’s
microprocessor
DISPLAY ADJUST
NO
• activates Display Mode
• silences and resets audible alarm if Alarm Latching is set to
Latching and Alarm Silence is set to ON
• enters instructions into the EAGLE 2’s microprocessor
AIR ▲YES • activates the demand zero function (adjusts the EAGLE 2’s fresh air
reading)
• silences and resets audible alarm if Alarm Latching is set to
Latching and Alarm Silence is set to ON
• enters instructions into the EAGLE 2’s microprocessor
• moves the cursor on the LCD up the screen
• increases the value of a parameter available for adjustment
• scrolls through parameter options
RANGE ▼SHIFT • changes the detection units of the combustible gas channel (when
Catalytic Units is set to CHANGE OK in Setup Mode)
• silences and resets audible alarm if Alarm Latching is set to
Latching and Alarm Silence is set to ON
• enters instructions into the EAGLE 2’s microprocessor
• moves the cursor on the LCD down the screen
• decreases the value of a parameter available for adjustment
• scrolls through parameter options
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18 • Chapter 2: Description EAGLE 2 Manual
Printed Circuit Boards (PCBs)
The EAGLE 2’s PCBs analyze, record, control, store, and display the information collected. The
main PCB and I.S. barrier PCB are located in the bottom case. The display PCB is located in the
top case. The display PCB and I.S. barrier PCB are not user serviceable and are not involved in
any user performed maintenance. The main PCB is not user serviceable, but it is involved in the
replacement of sensors, so it is described below.
Main PCB
Display PCB
I.S. BarrierPCB(not visble)
Figure 4: PCBs
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EAGLE 2 Manual Chapter 2: Description • 19
The main PCB is located on the right side of the bottom case. It slides into guiding grooves at the
bottom, front, and rear of the bottom case. It is held in place by the top case. Connectors for the
sensors, differential pressure switch, pump, display PCB, optional float probe, and I.S. barrier
PCB are located on the main PCB. In addition, an IR transmitter/receiver is located at the front of
the PCB behind the IR port on the front of the bottom case.
Alarm LEDs
Two sets of red alarm LEDs (light emitting diodes) are visible through two raised, frosted plastic
lenses in the top case. Each set has two LEDs. They are above the LCD, one above the left corner
and one above the right corner. The alarm LEDs alert you to gas, low battery, and failure alarms.
Infrared Communications Port
An infrared (IR) communications port is located on the left front of the bottom case when the
instrument is viewed from the front. The data transmitted through the port is in standard IrDA
protocol. A computer’s infrared port or an IrDA/USB cable connected to a USB port can be used
to download data saved by the EAGLE 2 to a computer using the Eagle 2 Data Logger
Management Program. See the Data Logger Management Program operator’s manual for data
logging and downloading instructions.
Buzzer
A solid-state electronic buzzer is located on the front of the top case. It is a panel mounting type of
buzzer and is water resistant and sealed to the inside of the top case with an O-ring. The buzzer
Oxygen Connector Pins (OXY)
I.S. Barrier Connector
LEL Connector (HC)
CO Connector (CO)
H2S Connector (H2S)
Pump Connector
Float ProbeConnector
Display connector
IR CommunicationSensor/Transmitter
DP Switch Connector
Figure 5: Main PCB
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20 • Chapter 2: Description EAGLE 2 Manual
sounds for gas alarms, malfunctions, low battery voltage, and as an indicator during use of the
EAGLE 2’s many display and adjustment options.
Battery Case & Batteries
Four C-size alkaline batteries (standard) or optional rechargeable
C-size Ni-MH batteries power the EAGLE 2. They are installed in the battery case which is
located at the rear of the bottom case. The battery case is secured to the bottom case with a
thumbscrew.
Instrument run time is dependent upon battery type. At 25°C, alkaline batteries power the EAGLE
2 for 16 hours of non-alarm operation. Ni-MH batteries will power the EAGLE 2 for 18 hours of
non-alarm operation. The current battery voltage is viewable in Display Mode (see pg. 41).
When the EAGLE 2 detects low battery voltage, a low battery warning is activated. When battery
voltage is too low for operation, the EAGLE 2 sounds a dead battery alarm.
The alkaline or Ni-MH batteries can be accessed for replacement by unscrewing the thumbscrew
that secures the battery case to the bottom case and pulling the battery case away from the bottom
case. The Ni-MH batteries can be recharged by using the EAGLE 2 charger (see pg. 67).
NOTE: Use of batteries or battery chargers not specified by RKI Instruments, Inc. will void the
CSA classification and may void the warranty.
WARNING: To prevent ignition of a hazardous atmosphere, batteries must only be changed
or charged in an area known to be nonhazardous.
Flow System
The EAGLE 2 flow system consists of the inlet fitting, hydrophobic filter, pump, internal tubing,
differential pressure (DP) switch, sensor chamber, charcoal filter, and exhaust fitting.
Inlet Fitting
The inlet fitting is on the right front (when viewed from the front) of the bottom case. It is a nickel
plated brass quick connect fitting. It mates with either the sample hose or with the hydrophobic
probe.
Hydrophobic Filter
The hydrophobic filter is located in the bottom case above the sensors. Normally the hydrophobic
probe accessory (see pg. 21) will prevent water and particulate contamination from entering the
flow system, but if the probe is not used, the hydrophobic filter will stop water and particulates
from penetrating further into the flow system. If it becomes dirty or water logged, replace it (see
pg. 71).
Pump
A diaphragm pump inside the rear of the bottom case draws the sample to the sensors. It can draw
sample from as far as 125 feet from the EAGLE 2.
CAUTION: Sample hose lengths of more than 125 feet are not recommended for the EAGLE 2
because of flow rate reduction and increased response time. Consult RKI
Instruments, Inc. for sample hose lengths longer than 125 feet.
Internal Tubing
The flow system includes polyurethane tubing to route the sample between the various
components of the flow system. The internal sample tubing is not user serviceable.
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