RKI Instruments 72-5276RK, 72-5287RK, 72-5101RK, 72-5116RK, 72-5296RK User manual

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Instruction Manual

Eagle Series

Portable Multi-Gas Detector

Part Number: 71-0028RK

Revision: S

Released: 4/13/22

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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.

2 • Eagle Instruction Manual

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Warranty

RKI Instruments, Inc. warranties gas alarm equipment manufactured by RKI and sold by RKI to be free from defects in materials and workmanship for a period of one year from date of shipment from RKI Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of charge. This warranty does not apply to items that are subject to deterioration or consumption in normal service, and which must be cleaned, repaired, or replaced routinely. Those items include, but are not limited to:

This warranty is voided by mechanical damage, misuse, alteration, rough handling, or repairs not in accordance with the operator’s manual. This warranty indicates the full extent of our liability. We are not responsible for removal or replacement costs, local repair costs, transportation costs, or contingent expenses incurred without our prior approval.

absorbent cartridges filter elements pump diaphragms and valves batteries lamp bulbs and fuses

THIS WARRANTY IS IN LIEU OF ANY OTHER WARRANTIES AND REPRESENTATIONS,

EXPRESSED OR IMPLIED, AND ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF

RKI INSTRUMENTS, INC. INCLUDING BUT NOT LIMITED TO THE WARRANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL RKI

INSTRUMENTS, INC. BE LIABLE FOR INDIRECT, INCIDENTAL, OR CONSEQUENTIAL LOSS

OR DAMAGE OF ANY KIND CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS

PRODUCTS TO FUNCTION OR OPERATE PROPERLY.

This warranty covers instruments and parts sold to end users by authorized distributors, dealers, and representatives of RKI Instruments, Inc.

We do not assume indemnification for any accident or damage caused by the operation of this gas monitor. Our warranty is limited to replacement of parts or our complete goods.

Eagle Instruction Manual Warranty • 3

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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Alarm Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Battery Charger Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Interface Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Sample-Drawing System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Hose and Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Circuit Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Methane Elimination Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

CAL/SETUP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Starting Up the Eagle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Monitoring Combustible Gas in the PPM Range . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Monitoring Combustible Gases Other Than Methane . . . . . . . . . . . . . . . . . . . . . . . 17

Setting User Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Turning Off the Eagle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Resetting Gas Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Display Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Entering Display Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

User and Station ID Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Peak Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Elapsed Time Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

TWA/STEL Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Battery Voltage Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4 • T a b l e o f C o n t ent s Eagle Instruction Manual

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Setup Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Tips for Using Setup Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Entering Setup Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Updating the Battery Type Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Updating Channel Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Updating the Combustible Gas Channel’s Units of Measure . . . . . . . . . . . . . . . . . 31

Updating the Alarm Point Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Updating the Eagle’s Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Updating the Lunch Break Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Updating the Alarm Latching Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Updating the Alarm Silence Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Turning the User ID Function On or Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Updating the Auto Calibration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Updating the Back Light Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Turning the Auto Fresh Air Function On or Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Updating the Zero Follow Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Updating the Confirmation Beep Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Returning to Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Calibration Supplies and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Preparing for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Calibrating the Eagle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Displaying the Battery Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Replacing Alkaline Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Recharging Ni-Cd Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Replacing the Probe’s Particle Filter and Hydrophobic Filter Disk . . . . . . . . . . . . 43

Replacing Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Appendix A: Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Appendix B: Methane Elimination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Setting up for Methane Elimination Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Operating With Methane Response OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Returning to Methane Response Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Monitoring Combustible Gases Other Than Hexane . . . . . . . . . . . . . . . . . . . . . . . . 50

Appendix C: Non-Standard Toxic Gas Sensors. . . . . . . . . . . . . . . . . . . . . . 51

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Hose and Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Keeping Fresh Batteries in a Non-Standard Toxic Eagle . . . . . . . . . . . . . . . . . . . . . 52

Calibrating Non-Standard Toxic Gas Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Replacing Non-Standard Toxic Gas Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Eagle Instruction Manual Table of Contents • 5

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Appendix D: Carbon Dioxide Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

CO2 Scrubber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Normal Operation of Carbon Dioxide Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Demand Zero for Carbon Dioxide Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Calibrating Carbon Dioxide Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Replacing Carbon Dioxide Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Appendix E: Infrared Methane Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Target Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Calibrating Infrared Methane Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Replacing Infrared Methane Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Appendix F: Infrared HC Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Target Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Calibrating the Infrared HC Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Replacing the Infrared HC Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Appendix G: Eagle Tank Tester Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Appendix H: Five-Gas and Six-Gas Models . . . . . . . . . . . . . . . . . . . . . . . . 70

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Displaying Additional Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Calibration, Display, and Setup Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Appendix I: Eagle Transformer Gas Tester . . . . . . . . . . . . . . . . . . . . . . . . . 72

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

6 • T a b l e o f C o n t ent s Eagle Instruction Manual

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Appendix J: Eagle Transformer Gas Tester Model TRB . . . . . . . . . . . . . . 74

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Eagle Instruction Manual Table of Contents • 7

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Introduction

Overview

The RKI Eagle is the most advanced portable gas detection system available. The Eagle is built for rugged reliability and ease of use and includes the latest innovation s in gas detection technology:

• Simultaneous detection of one to six gases. Standard target gases include combustible gas (% LEL and ppm), oxygen deficiency, carbon monoxide, and hyd

rogen sulfide.

• Powerful sample-drawing pump with up to 125-foot range.

• Dot-matrix liquid crystal display (LCD) for complete, understandable information at a glance.

• Microprocessor control for all functions, including user-adjustable alarms.

• Visible and audible alarms for hazardous conditions and malfunctions.

• UL and CSA classified. Intrinsic safety for Class I, Division I, Groups A, B, C, and D hazardous atmospheres (standard 4-gas model and non-standard toxic gas versions). Consult for classification of other Eagle versions.

• Tough case with a balanced, light-weight design.

WARNING: The Eagle detects a combination of combustible gas, oxygen

deficiency, hydrogen sulfide and carbon monoxide, or other toxic gases which can be leth al . When us i ng the Eagl e, yo u mus t fo l low th e 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 as described in this manual.

About this Manual

This manual is intended for use with all Eagle models. Examples used in this manual are for the standard four-gas model (combustible gas, oxygen, carbon monoxide, and hydrogen sulfide). Differences between the standard four-gas model and other Eagle models are noted where applicable.

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Specifications

Table 1 lists physical and environmental specifications for the Eagle. Table 2 lists specifications for the Eagle’s standard sensors.

Table 1: Eagle Specifications

Target Gases

• Combustible gas

• Oxygen (O

)

• Carbon monoxide (CO)

• Hydrogen sulfide (H

Case High-impact polycarbonate-polyester blend Safety/Regulatory

CSA/NTRL and UL classified intrinsically safe

(Class I, Division 1, Groups A, B, C, and D) Dimensions 10.5 in. x 5.9 in. x 7.0 in. (26.7 cm x 15.0 cm x 17.8 cm) Weight 5 lbs. (2.25 kg) Power Four D-size batteries (alkaline or Ni-Cd) Continuous Operating

Hours

Alkaline: 30 hours (minimum)

Ni-Cd: 18 hours (minimum)

Operating Temperature 14°F to 104°F (-10°C to 40°C) Humidity 0 to 95% (non-condensing) Standard Accessories • Shoulder strap

• Alkaline batteries

• Hydrophobic probe

• 5-foot hose

Optional Accessories • Ni-Cd batteries

• Battery charger (115 VAC)

• Continuous operation adapter (115 VAC or 12 VDC)

• Dilution fitting (1:1 or 3:1)

1 Appendices C, D, E, and F describe the Eagle’s non-standard sensors. 2 Consult for regulatory classifications of versions other than the standard 4-gas and non-

standard toxic g as ver sions.

3 Based on RKI part number 49-1240RK.

Eagle Instruction Manual Specifications • 9

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Table 2: Standard Sensor Specifications

Combustible

Gas (%LEL

Range 0 to 100% LEL Depends on

Alarm 1 10% LEL 5000 ppm 19.5% O

Combustible

)

Gas (PPM2)

target gas

Oxygen

Hydrogen

Sulfide

Carbon

Monoxide

0 to 40% O20 to 100 ppm 0 to 500 ppm

10.0 ppm 25 ppm

(decreasing)

Alarm 2 50% LEL 25,000 ppm 23.5% O

30.0 ppm 50 ppm

(increasing) TWA Alarm N/A N/A N/A 10.0 ppm 25 ppm STEL Alarm N/A N/A N/A 15.0 ppm 400 ppm Detection

Principle Response Ti me

(to 90%)

Accuracy (of fullscale)

Catalytic

combustion

Catalytic

combustion

Electro-

chemical

Electro-

chemical

Electro-

chemical

30 seconds 30 seconds 30 seconds 30 seconds 30 seconds

± 5% of reading

± 2% LEL

(whichever is

greater)

± 25 ppm or

± 5% of

reading

(whichever is

greater) under

± 0.5% O

± 5% of

reading or

± 2 ppm H

(whichever

is greater)

± 5% of

reading or

± 5 ppm CO

(whichever

is greater)

ideal

conditions

1 LEL (Lower Explosive Limit) 2 PPM (Parts Per Million) 3 Alarms settings are user adjustable. See “Updating the Alarm Point Settings” on page 32. 4 The PPM range represents the same range as 0 to 100 % LEL for that gas. For example, 100% LEL for methane = 5% by

volume = 50,000 PPM . Therefore, the PPM range for methane is 0 to 50,000.

5 With the Eagle’s standard hose and probe attached.

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Description

Case

The Eagle has a plastic case with a full-sized handle. The high-visibility case is shielded to reduce radio frequency and electromagnetic interference (RFI/EMI). The system is light-weight and balanced, which makes the Eagle easy to carry and use for extended periods. A foam rubber gasket between the top and bottom case components is water- and dust-resistant. You can set the case into 2.5 in. of water without damage.

Control Panel

The control panel is at the top of the Eagle. The touch-pad buttons reduce the risk of accidental activation. The dot matrix display simultaneously shows the gas reading for all installed sensors. (For the 5- and 6-gas versions, the Eagle displays the gas

reading of four channels. Use the AIR/▲ and SHIFT/▼ buttons to scroll to the non- displayed channels.) The display also shows information for each of the Eagle’s program modes.

Buttons

The control panel includes the following six buttons.

Table 3: Eagle Button Functions

Button Function(s)

POWER/ENTER • turns the Eagle on and off.

• used during setup and calibration.

RESET/SILENCE silences and resets audible alarm if the Eagle is programmed for

latching alarms and the Alarm Silence option is on

DISP/ADJ • activates display modes

• enters instructions into the Eagle’s microprocessor

LEL/PPM switches combustible gas detection ranges between %LEL (lower

explosive limit) and PP M (parts per million)

AIR/▲ • activates the demand-zero function (automatically adjusts the Eagle

in fresh-air conditions)

• scrolls through the display and settings modes

SHIFT/▼ • scrolls through the calibration and settings modes

• enters instructions into the Eagle’s microprocessor

1 The Eagle’s alarms are user-adjustable. See “Setup Mode” on page 25. 2 The LEL range is commonly used for safety applications; the PPM range can be used for environmental or other

special applications.

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Alarm Lights

Two ultra-brigh t, red, light-em itting diod es (LEDs) alarms and instrument malfunctions. They are mounted on the top rear of the case for greatest visibility.

provide visual indications for gas

Battery Charger Connector

The battery charger connector is at the top right rear of the case. The external battery charger conn ects to this conn ector to recharge nickel-cadmium (Ni-Cd) batteries. The continuous operation adapter also connects to the battery charger connector.

Interface Port

The interface port is not used on this version of the Eagle.

Buzzer

A solid-state electronic buzzer is mounted inside the top of the case. The buzzer sounds for gas alarms, malfunction, low battery voltage, and as an indicator during use of the Eagle’s many display and adjustment optio ns.

Sample-Drawing System

The sample-drawing system includes the pump, sensor block and connections, internal filter and charcoal scrubber, and the external hose, probe, and hydrophobic filter. This system provides continuous flow of sample d air to the sensors while keeping out liquids and dust.

With proper setup, the system can draw a sample flow from up to 125 feet away. Consult for sample flow distances longer than 125 feet.

Hose and Probe

A 5 foot polyurethane sample hose and a 10 inch hydrophobic probe are included as standard. The hose has a male quick connect fitting on one end and a female quick connect fitting on the other end. The probe has a male quick connect fitting. Normally, the male end of sample hose is installed in the Eagle inlet fitting and the probe is installed in the female end of the hose. However, if the sample hose is not needed for monitoring a particular area, the probe may be installed directly to the inlet fitting. Sample hose lengths are available from 5 feet (standard length) to 125 feet (see “Appendix A: Parts List” on page 47).

CAUTION: Sample hose lengths of more than 125 feet are not recommended for the Eagle

because of flow rate reduction and increased response time. Consult for hose lengths longer than 125 feet.

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The standard probe includes a replaceable particle filter and hydrophobic filter disk

Standard

Probe

Sample Hose

that prevent particulates and water from entering the Eagle’s flow system. See “Replacing the Probe’s Particle Filter and Hydrophobic Filter Disk” on page 43 for instructions to replace the particle filter and hydrophobic filter disk.

A super toxic probe is included with instruments that require it. It has a plastic fitting and is connected to the inlet of the Eagle with a tubing stub. See “Appendix C: NonStandard Toxic Gas Sensors” on page 51 for more information about the super toxic probe and where to use it.

Sensors

This section describes the Eagle’s standard sensors. Non-standard sensors are described in Appendices C, D, E, and F. Your specific Eagle model may not include all of the sensors described below. Under normal conditions, the Eagle’s standard sensors have an operating life of approximately two years.

Combustible Gas Sensor

The combustible gas (LEL) sensor is mounted with the flame arrestor down in the sensor block to allow the sample flow to diffuse into the sensor. Five pins extend from the top of the sensor. The sensor cable connects to the pins on one end and terminates in a four-position connector, which plugs into the COMB socket on the analog print circuit board (PCB).

The LEL sensor detects combustible gas and vapors in the atmosphere with a catalytic platinum element. The reaction of gas with oxygen on the catalyst causes a change in the resistance of the element, which is converted by the Eagle into a reading of combustible gas concentration.

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Oxygen Sensor

The oxygen (O2) sensor is mounted face down in the sensor block to allow the sample flow to diffuse into the sensor. A multi-pin plug connects the O2 sensor to the CN2 socket on the analog PCB.

The O and produces a voltage proportional to the oxygen concentration. This voltage is

converted by the Eagle into a reading of oxygen concentration.

sensor is an electroch emical cell, which r eacts to the oxy gen in the atmo sphere

Standard Toxic Sensors (CO and H2S)

The CO and H2S sensors are physically very similar. They have cylindrical bodies and are mounted face down in the sensor block. A three-position connector from

each sensor plugs into EC1 or EC2 socket on the analog PCB. The sensor connected to the EC1 socket displays as channel 3; the sensor connected to the EC2 socket displays as channel 4.

The toxics sensors are electrochemical cells, which react to the target gas in the atmosphere, producing a current proportional to the concentration of gas. The current is converted by the Eagle into a reading of target gas concentration.

Circuit Boards

The Eagle circuit boards analyze, record, control, store, and display the information collected.

The analog PCB is mounted perpendicular to the base of the instrument case. It is located in the same half of the case as the sensors and sample-drawing system. The sensor leads connect to the analog PCB.

The main PCB is mounted in the top half of the case. It includes the methane elimination and CAL/SETUP switches.

CAUTION: The circuit boards should be serviced only by authorized repair personnel.

Methane Elimination Switch

The methane elimination switch (SW1) is mounted near the top right corner of the main PCB.

For applications where methane is an interfering gas, you can set the methane elimination switch to eliminate most response to methane (see “Appendix B: Methane Elimination” on page 49). An external methane elimination switch is available as an option.

CAL/SETUP Switch

The CAL/SETUP switch (SW2) is mounted near the middle left edge of the main PCB.

This switch controls the Eagle functions available to the user by disabling the SHIFT/ ▼ button. Without the use of this button, the user is unable to enter Calibration or Setup mode. (Display mode is available with either switch setting.) See “Setting User Access” on page 18 to change the switch setting.

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Operation

UDT

R S

TERY

MIN

.4.5V

TERY

60V.

The Eagle has four operating modes: normal operating mode, display mode, setup mode, and calibration mode. This section describes the Eagle in normal operating mode. It includes procedures to start up the Eagle, set various detection options for the combustible gas channel, and shut down the Eagle.

NOTE: The screens illustrated in this section are intended as examples only. The

Starting Up the Eagle

1. Connect the sample hose to the Eagle’s quick connect inlet fitting.

2. Connect the hydrophobic filter and probe tip to the sample hose’s quick connect fitting.

3. Press and briefly hold down the POWER/ENTER button. If the Lunch Break feature is on (see page 33), the Resume Datalog screen displays. (If the Lunch Break feature is off, the Battery Voltage screen displays.)

screens displayed by your Eagle model may be slightly different.

• Press the AIR/▲ button to continue accumulating time-weighted average

(TWA) and PEAK readings from the last time the Eagle was used. (The shortterm exposure limit [STEL] reading is reset each time the Eagle is turned on.) If you do not press the AIR/▲ or DISP/ADJ button within 5 seconds, the Eagle automatically resumes readings.

• Press the DISP/ADJ button to restart these measurements.

4. The Battery Voltage screen displays the minimum usable and actual battery voltage (for example, 6.0V). If the battery voltage is too low, the Eagle will not continue.

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5. The Eagle does a self-diagnosis and alerts you if a malfunction occurs.

DIA O

NDS

ND BY

><O Y

C>O

OY C

0.9

0.0

L V P PPPMM

EOLL%

6. When the Eagle successfully completes its self-diagnosis, OK replaces ST AND BY,

then the normal operating screen displays. The normal screen displays fresh-air concentrations for all gases. The Eagle sounds a double tone to indicate it is in normal operation.

CAUTION: Do not use gas from a cigarette lighter to test response to combustibles.

Exposing the combustible gas sensor to uncontrolled high concentrations of gas will reduce response and sensor life.

7. Verify that the Eagle is operating correctly. Use the RKI Check Kit to easily verify correct operation of the Eagle.

WARNING: If the Eagle does not respond to verification, take it to a known

“fresh-air” environment, then perform the demand zero procedure described in “Preparing for Calibration” on page 38. Repeat step 4 before using the Eagle in a potentially hazardous location.

Normal Operation

The Eagle continuously monitors the sampled atmosphere and displays the gas concentrations present for its target gases. In a low-light environment, press any button to turn on the display backlight. (See “Updating the Back Light Setting” on page 35 to program backlight duration.) If the Confirmation Beep is turned on, the Eagle beeps once every 15 minutes to verify that it’s functioning.

To use the probe, insert it into the monitoring area and wait a few seconds for response.

NOTE: Response time increases with the length of the sample hose. Very long

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Monitoring Combustible Gas in the PPM Range

1. Start the Eagle in the LEL range as described in “Starting Up the Eagle” on page 15.

2. Allow the combustibles sensor to stabilize (3 to 5 minutes).

3. Press the LEL/PPM button to switch the units from %LEL to ppm.

4. If the PPM reading is not zero, take the Eagle to a fresh air environment and perform the demand zero as described in “Preparing for Calibration” on page 38.

Monitoring Combustible Gases Other than Methane

If the combustible sensor is calibrated to methane (CH4), use Table 4 to determine the response of other combustible gases. This table is based on Eagles in full response

mode (methane elimination switch set to CH4) calibrated to methane. Multiply the display reading by the factor in the appropriate column in the table. For example, if you are detecting hexane and the display reads 10% LEL, the actual hexane reading is 10% x 2.14 = 21% LEL hexane.

WARNING: The Eagle’s alarms are initiated by the DISPLAY reading not the

FACTORED reading. If you are monitoring for hexane as in the example above and the low alarm is set for 10% LEL, the Eagle will initiate a low alarm at 21% LEL hexane (display reading of 10% LEL).

To determine the concentration of other combustible gases with the Eagle in methane elimination mode, see Table 7 on page 50.

Table 4: Full Response Mode Conversion Factors (Methane Calibration)

Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor

Acetone 1.40 0.70 Isobutane 1.61 0.58 Benzene 1.75 0.42 Isopropanol 2.22 0.89 Butyl Acrylate 3.95 1.34 Methane 1.00 1.00 Butyl Acetate 3.38 0.88 Methanol 1.23 1.48 2-Butyl Alcohol 1.94 0.66 Methyl Acetate 1.37 0.85 1-Butyl Alcohol 2.65 0.74 Methyl Acrylate 1.10 0.62 Cyclohexane 1.82 0.47 Methyl Ethyl

Ketone

Cumene 3.90 0.70 Methyl Isobutyl

Ketone

Ethylene Dichloride

2.75 3.41 Mixed Xylenes 2.36 0.52

2.53 0.71

2.53 0.61

Ethyl Alcohol 1.38 0.91 Nonane 2.87 0.46 Ethyl Chloride 1.26 0.96 Pentane 1.95 0.59

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Table 4: Full Response Mode Conversion Factors (Methane Calibration)

Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor

Ethyl Acrylate 2.45 0.69 Propane 1.50 0.63 Hexane 2.44 0.54 Styrene 2.94 0.53 Hydrogen 1.16 0.93 Toluene 2.16 0.48

Vinyl Acetate Monomer

1.48 0.77

Setting User Access

The CAL/SETUP s witch contr ols the Eagle functions available to the user. The switch setting does not affect the Eagle’s ability to display gas readings or indicate alarms.

1. Turn off the Eagle.

2. Unscrew the two large screws on the top of the case.

3. Turn over the top half of the case.

4. Locate the CAL/SE TUP switc h (SW2) n ear the middle along one edge of the main processor board.

CAUTION: The Methane Elimination switch (SW1) is on the opposite edge of the board

near the front end. DO NOT confuse these two switches.

5. Place the CAL/SETUP switch in the appropriate position.

• To give the Eagle access to all modes, place the switch in the ON position.

• To limit the Eagle to normal operating and display modes, place the switch in

the OFF position. (The Eagle prevents access to the setup and calibration modes by disabling the SHIFT/▼ button.)

6. Place the top of the case in its original position, then secure it with the large screws you loosened in step 2.

7. Turn on the Eagle.

NOTE: Make sure the Eagle’s calibration is current and the setup options are

appropriate and safe for the operating environment before placing the CAL/SETUP switch in the OFF position.

Turning Off the Eagle

Press and hold down the POWER/ENTER button until GOOD-BYE displays, then release the button.

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Alarms

OY C

0.9

0.0

L V P PPPMM

EOLL%

ALM

OY C

0.9

0.0

L V P PPPMM

EOLL%

Alarm Indications

This section describes the Eagle’s audible and visual alarm indications for gas, over range, low flow, low battery, and sensor failure alarms. This section also describes how to reset gas alarms.

The default alarm settings are listed in Table 2 on page 10. The alarm settings are user-adjustable as described in “Updating the Alarm Point Settings” on page 32.

NOTE: The screens illustrated in this section are intended as examples only. The

screens displayed by your Eagle model may be slightly different.

First Gas Alarm

If a channel’s gas reading exceeds (falls below for the oxygen) the first alarm setting :

• ALM1 displays in the alarm field for that channel.

• The channel’s display line flashes.

• The buzzer sounds a pulsed tone.

• The alarm lights flash.

Second Gas Alarm

If a channel’s gas reading exceeds the second alarm setting:

• ALM2 displays in the alarm field for that channel.

• The channel’s display line flashes.

• The buzzer sounds a pulsed tone.

• The alarm lights flash.

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STEL Alarm (Toxics Only)

OY C

0.9

0.5

L V P PPPMM

EOLL%

STE

OY C

0.9

0.0

L V P PPPMM

EOLL%

OY C

0.0

L V P PPPMM

EOLL%

%OVER

If a toxic gas channel’s average gas reading for the past 15 minutes exceeds the STEL alarm setting:

• STEL displays in the alarm field for that channel.

• The channel’s display line flashes.

• The buzzer sounds a pulsed tone.

• The alarm lights flash.

TWA Alarm (Toxics Only)

If a toxic gas channel’s average gas reading for the past 8 hours exceeds the TWA alarm setting:

• TWA displays in the alarm field for that channel.

• The channel’s display line flashes.

• The buzzer sounds a pulsed tone.

• The alarm lights flash.

Over Range Alarm

If a channel’s gas reading exceeds that channel’s full-scale setting:

• OVER displays in the alarm field for that channel.

• The channel’s display line flashes.

• The buzzer sounds a pulsed tone.

• The alarm lights flash.

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Low Flow Alarm

FLLOW E

LEV

OY CO

0.9

0.0

L V P PPPMM

EOLL%

B A T

Low Battery

Warning

TERY

MIN

4.5V

TTE

Low Battery

ALARM

><O

SENSOR

If the Eagle’s sample system becomes restricted or blocked (for example plugged probe, fouled filter, pinched tubing):

• The message FAIL LOW FLOW LEVEL replaces the normal screen.

• The buzzer sounds a steady tone.

• The alarm lights are on continuously.

• The pump automatically shuts off to prevent damage. Correct the flow blockage. Press the RESET/SILENCE button to turn off the alarms

and restart the pump. If low flow conditions still exist, the Eagle will go into alarm again. If the condition cannot be corrected immediately, take the Eagle out of service to a non-hazardous area.

Low Battery Warning

When the battery charge drops ne ar the lower limit, the Eagle displays the following screen. For alkaline batteries, you have approximately 3 hours of use remaining; for Ni-Cd batteries you have approximately 15 minutes of use remaining.

Low Battery Alarm

When the battery voltage drops to the minimum limit, the following screen displays, the alarm lights are on continuously, and the buzzer sounds a steady tone. The Eagle is not operational as a gas monitoring device when this screen displays.

Sensor Failure Alarm and Emergency Operation

The Eagle continuously monitors itself for proper operation. If a malfunction occurs, the Eagle alerts you with audible and visual alarms.

If a sensor fails during start-up or normal operation:

• The message FAIL SENSOR displays.

• The failed sensor displays in parenthesis.

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Eagle Instruction Manual Alarms • 21

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• The buzzer sounds a steady tone.

OY C

0.0

L V P PPPMM

EOLL%

%xxxxx

• The alarms lights flash. If the sensor failed during start-up, the Eagle continues to normal operation and xxxxx

replaces the failed sensor’s gas reading.

If the sensor fails during normal operation and you want to continue monitoring for the remaining target gases, turn the Eagle off and on again. In the normal operation screen,

xxxxx replaces the failed sensor’s gas reading.

Resetting Gas Alarms

You can set the Eagle’s gas alarms for latching or self-resetting alarms (see “Updating the Alarm Latching Setting” on page 33).

Self-Resetting Alarms

Self-resetting alarms automatically shut off and reset when the gas reading falls below (or rises above for oxygen) the alarm setting. You cannot silence or reset selfresetting alarms.

Latching Alarms

You can set latching alarms with or without Alarm Silence (see “Updating the Alarm Silence Setting” on page 34).

With Alarm Silence On:

When the Eagle goes into gas alarm, press the RESET/SILENCE button to silence the buzzer. The LEDs continue to flash, and the Eagle continues to display the current alarm level.

The gas reading must fall below (or rise above for oxygen) the low alarm (ALM1) setting before you can res et th e alar m. Press t he RES E T/ SILENCE bu t ton t o r es et t he alarm. The LEDs turn off and the Eagle returns to the normal screen.

With Alarm Silence Off:

The gas reading must fall below (or rise above for oxygen) the low alarm (ALM1) setting before you can res et th e alar m. Press t he RES E T/ SILENCE bu t ton t o r es et t he alarm. The LEDs and buzzer turn off, and the Eagle returns to the normal screen.

NOTE: With Alarm Silence off, you cannot silence the buzzer while the gas reading

is above (below for oxygen) the low alarm (ALM1) setting.

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Display Mode

IN D

*********

In display mode, you can:

• set user and station IDs

• view peak readings

• view elapsed operating time

• view TWA and STEL readings (toxic gases only)

• view battery voltage

Entering Display Mode

Press the DISP/ADJ button to enter Display Mode. To scroll from one screen to the next press the DISP/ADJ button.

NOTE: Each screen displays for 20 seconds. If you do not press the DISP/ADJ

button to scroll to the next screen within 20 seconds, the Eagle automatically returns to the normal operating screen.

User and Station ID Screen

This screen displays only if the user ID function is activated (see “Turning the User ID Function On or Off” on page 34). Each ID contains 10 characters. Uppercase letters, numbers, asterisks (*), and a blank space are available characters.

Use this screen to identify the user, the location, or other information.

To enter a user and station ID:

To scroll to the next screen at any time, press the DISP/ADJ button.

1. With the User and Station ID screen displayed, press the POWER/ENTER button.

The first User ID character flashes (* is default).

2. Press the AIR/ (The asterisk and blank space are between the set of letters and numbers.)

3. With the desired character displayed, press the POWER/ENTER button to save the character and go to the next one.

4. Repeat steps 2 and 3 for the remaining 19 characters.

5. After you enter the last character, the Peak screen displays.

▲ and SHIFT/▼ buttons to scroll through the available characters.

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Peak Screen

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0.9

0.0

L V P PPPMM

EOLL%

P E A K

M RA I

OPE

ENI

0.0

P PPPMM

TEL

0.0 0

TERY

MIN

.4.5V

TERY

60V.

The Peak screen displays the highest (low est for O2) concentrations detected since the Eagle was turned on. Peak readings are stored in the Eagle’s memory until a higher

level is detected, you reset them, or the Eagle is turned off. To reset the peak reading s while using the Eagle, press and hold the RESET/SILENCE button while in the Peak screen until you hear a beep, then release it.

The Lunchbreak “RESUME” option enables the Eagle to remember peak readings when it is turned off. See “Starting Up the Eagle” on page 15.

Elapsed Time Screen

The Elapsed Time screen displays the time in minutes since the Eagle was turned on.

TWA/STEL Screen

The TWA/STEL screen displays the time-weighted average (TWA) and the shortterm exposure limit (STEL) readings for toxic gases only.

The TWA reading is the average reading during the last 8 hours. If 8 hours have not elapsed since the last time the TWA/STEL reading was cleared, the average is still calculated over 8 hours. The missing readings are assigned a 0 value.

The STEL reading is the average reading during the last 15 minutes.

Battery Voltage Screen

The Battery Voltage screen displays the minimum operating voltage and the current battery voltage. New alkaline batteries typically measure 6.0 V; fully-charged Ni-Cd batteries typically measure 5.2 V.

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Setup Mode

Y N

ASGC TON

(

)

ALA

In setup mode, you can:

• update the battery type setting

• update channel settings

• update the combustible gas channel’s units of measure

• update the alarm point settings

• update the Eagle’s serial number

• turn the lunch break function on or off

• update the alarm latching setting

• update the alarm silence setting

• turn the user ID function on or off

• update the auto calibration settings

• update the back light setting

• turn the auto fresh air function on or off

• turn each channel’s zero follower on or off

• turn the confirmation beep on or off

• return to default settings (three default options)

Tips for Using Setup Mode

• To enter a menu item, use the AIR/▲ or SHIFT/▼ button to place the curs or ne xt

to the menu item, then press the POWER/ENTER button.

• To exit setup mode and return to normal operation, from the main menu place the

prompt next to the last menu option, START MEASUREMENT, then press the POWER/ENTER button.

Entering Setup Mode

WARNING: The Eagle does not detect gas or display r eadings while i n setup mode.

The CAL/SETUP switch (SW2) must be in the ON position to enter setup mode.

1. Take the Eagle to a non-hazardous location, and turn the power off.

2. Press and hold down the AIR/▲ and SHIFT/▼ buttons, then press the POWER/

ENTER button.

3. The main menu displays. It displays four menu options at a time. Press the AIR/

▲ or SHIFT/▼ button to view additional menu options.

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Updating the Battery Type Setting

AELKA

OY CO

This setting allows you to select between alkaline and Ni-Cd batteries. This setting helps the Eagle give low battery warning and low battery alarm indications at the appropriate times. This setting has no effect on battery charging.

1. From the main menu, select the BATTERY TYPE menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

CAUTION: This setting should always match the type of batteries (alkaline or Ni-Cd)

installed in the Eagle. If this setting does not match the installed batteries, the time between low battery warning and low battery alarm may be less than expected.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

Updating Channel Settings

This procedure describes how to update channel settings for the combustible gas, oxygen, and toxic gas channels.

CAUTION: Verify that the correct sensor is installed before you update a channel’s

settings.

Updating Combustible Gas Channel Settings

This section describes how to update the target gas label, set a custom gas label, and update the fullscale PPM setting for the combustible gas channel.

Updating the Target Gas Label

1. From the main menu, select the GAS COMBINATIONS menu option.

2. Use the AIR/▲ or SHIFT/▼ button to place the cursor next to the combustible gas channel (in this example CH4).

3. Press the POWER/ENTER button. The combustible gas target gas label flashes.

4. Press the AIR/▲ or SHIFT/▼ buttons to scroll through available combustible gas target gas labels (CH4, HEX, H2, ***, and NOT USED).

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NOTE: Select the HEX or *** setting for Methane Elimination (see “Appendix B:

(

00 PM

)

01000

(

5)0

100

(

1)0

5000

(

)

Methane Elimination” on page 49 for more information).

5. Press the POWER/ENTER button to save the new target gas label.

6. A screen displays that shows the fullscale PPM setting, which corresponds to 100% LEL, and the increments for the selected target gas label.

The number in parenthesis indicates the display increment for that portion of the PPM range. In the example below, the PPM reading would display in increments of:

• 5 from 0 to 100 ppm

• 10 from 100 to 1000 PPM

• 50 from 1000 to 10,000 PPM

• 250 from 10,000 to 50,000 PPM

7. If you entered a label other than ***, continue with step 8. If you enter ed ***, go to the next section, “Setting a custom target gas label.”

8. Press the POWER/ENTER button to return to the Gas Combinations menu.

9. To exit the Gas Combinations menu, press the SHIFT/▼ button until the cursor is next to ESCAPE.

10. Press the POWER/ENTER button. The message SAVING DA TA displays, then the main menu displays.

Setting a Custom Target Gas Label

1. With the cursor n ext to the tar get gas label setting (***), press the POWER /ENTER button. The first asterisk flashes.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired character. Available characters are A through Z, 0 through 9, and a blank space.

3. Press the POWER/ENTER button to save the displayed character. The next character flashes.

4. Repeat steps 2 and 3 to enter the remaining characters. When you enter the last character, the cursor flashes.

Updating the Fullscale PPM Setting

CAUTION: The fullscale PPM setting must correspond to 100% LEL for the target gas in

order for the Eagle to display accurate PPM readings for the combustible gas channel.

1. Press the SHIFT/▼ button to move the cursor to the second line, then press the POWER/ENTER button. The fullscale setting flashes.

Eagle Instruction Manual Setup Mode • 27

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The maximum fullscale setting for the combustible gas channel is 50,000 ppm; the minimum setting is 1000 ppm. The default setting is 50,000 ppm.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired fullscale setting (see Table 5), then press the POWER/ENTER button to save the setting. The cursor flashes.

Table 5: Fullscale PPM Readings

Equivalent to 100% LEL

Target Gas Fullscale Setting

Methane (CH Hexane 11,000 ppm

Hydrogen 40,000 ppm Pentane 15,000 ppm Styrene 9,000 ppm IPA 20,000 ppm Isobutane 18,000 ppm Propane 21,000 ppm Propylene 20,000 ppm T ol uene 11,000 ppm Ethane 30,000 ppm Ethanol 33,000 ppm Benzene 12,000 ppm

Returning to the Main Menu

) 50,000 ppm

1. Press the SHIFT/▼ button. The ESCAPE message displays.

2. Press the POWER/ENTER button to save the new setting. The OTHER GAS SET message displays, then the Gas Combinations menu displays.

3. To exit the Gas Combinations menu, press the SHIFT/▼ button until the cursor is next to ESCAPE.

4. Press the POWER/ENTER button. The message SAVIN G DAT A displays, then the main menu displays.

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Updating Oxygen Channel Settings

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This section describes how to update the target gas label, fullscale setting, and display increment setting for the oxygen channel.

Updating the Target Gas Label

1. From the main menu, select the GAS COMBINATIONS menu option.

2. Use the AIR/▲ or SHIFT/▼ button to place the cursor next to the oxygen channel.

3. Press the POWER/ENTER button. The oxygen target gas label flashes.

4. Press the AIR/▲ or SHIFT/▼ buttons to cycle through the oxygen target gas labels (OXY, ***, and NOT USED).

CAUTION: Th

5. Press the POWER/ENTER button to enter the new target gas label.

6. To exit the Gas Combinations menu, press the SHIFT/▼ button until the cursor is next to ESCAPE.

7. Press the POWER/ENTER button. The SAVING DA TA message displays, then the main menu displays.

Updating the Fullscale Setting

1. Press the SHIFT/▼ button to move the cursor to the second line, then press the POWER/ENTER button. The fullscale setting flashes.

The maximum fullscale setting for the oxygen channel is 40.0 VOL%; the minimum setting is 25.0 VOL%. The default setting is 40.0 VOL%.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired fullscale setting, then press the POWER/ENTER button to save the setting. The cursor flashes.

Updating the Display Increment Setting

1. Press the SHIFT/▼ button to move the cursor to the third line, then press the POWER/ENTER button. The display increment setting flashes. The allowable settings are 0.2 VOL% (default) and 0.5 VOL%.

e *** setting is not intended for customer setup. Contact

before using this setting for the oxygen channel.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired display increment setting, then press the POWER/ENTER button to save the setting. The prompt flashes.

Returning to the Main Menu

1. Press the SHIFT/▼ button. The ESCAPE message displays.

2. Press the POWER/ENTER button to save the new settings. The OTHER GA S SET message displays, then the Gas Combinations menu displays.

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3. To exit the Gas Combinations menu, press the SHIFT/▼ button until the cursor is

OY CO

0 PM 1

PPM

next to ESCAPE.

4. Press the POWER/ENTER button. The message SAVIN G DAT A displays, then the main menu displays.

Updating Toxic Channel Settings

This section describes how to update the target gas label, set a custom gas label, and update the fullscale and display increment settings for a toxic gas channel.

Updating the Target Gas Label

1. From the main menu, select the GAS COMBINATIONS menu option.

2. Press the POWER/ENTER button to display the Gas Combinations menu.

3. Use the AIR/▲ or SHIFT/▼ button to place the cursor next to the toxic gas channel.

4. Press the POWER/ENTER button. The toxic target gas label flashes.

5. Press the AIR/▲ or SHIFT/▼ buttons to cycle through the available target gas labels for the toxic gas channel (H2S, CO, SO2, Cl2, NH3, CO2 (5.00%), CO2 (10000 PPM), CO2 (5000 PPM), ***, and NOT USED).

6. Press the POWER/ENTER button to save the new target gas label.

7. If you entered a label other than ***, continue with step 8. If you enter ed ***, go to the next section, “Setting a custom target gas label.”

8. To exit the Gas Combinations menu, press the SHIFT/▼ button until the cursor is next to ESCAPE.

9. Press the POWER/ENTER button. The message SA VIN G DAT A displays, then the main menu displays.

Setting a Custom Target Gas Label

1. With the prompt next to the target gas label setting (***), press the POWER/ ENTER button. The first asterisk flashes.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired character. Available characters are A through Z, 0 through 9, and a blank space.

3. Press the POWER/ENTER button to save the displayed character. The next character flashes.

4. Repeat steps 2 and 3 to enter the remaining characters. When you enter the last character, the cursor flashes.

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Updating the Fullscale Setting

O%L

LEL

(

)

LEL

1. Press the SHIFT/▼ button to move the cursor to the second line, then press the POWER/ENTER button. The fullscale setting flashes.

The maximum fullscale setting for a toxic gas channel is 1000 PPM; the minimum setting is 1.00 PPM. The default setting is 10.0 PPM.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired fullscale setting, then press the POWER/ENTER button to save the setting. The prompt flashes.

NOTE: The display increment setting automatically updates its default setting as

you change the fullscale setting.

Updating the Display Increment Setting

1. Press the SHIFT/▼ button to move the cursor to the third line, then press the POWER/ENTER button. The display increment setting flashes.

The minimum display increment setting is 0.1 PPM; the maximum display increment setting is 2.5 PPM.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired display increment setting, then press the POWER/ENTER button to save the setting. The prompt flashes.

Returning to the Main Menu

1. Press the SHIFT/▼ button. The ESCAPE message displays.

2. Press the POWER/ENTER button to save the new settings. The OTHER GA S SET message displays, then the Gas Combinations menu displays.

3. To exit the Gas Combinations menu, press the SHIFT/▼ button until the cursor is next to ESCAPE.

4. Press the POWER/ENTER button. The message SAVIN G DAT A displays, then the main menu displays.

Updating Combustible Gas Channel Units of Measure

This setting allows you to display the combustible gas reading in percentage of LEL or percentage of volume. The detection range remains the same. If 100% LEL equals 5% by volume, then fullscale on the volumetric display is 5%.

1. From the main menu, select the LEL% OR VOL% (HC) menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

NOTE: The data logging option logs all combustible gas readings in LEL%

regardless of this setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

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Updating the Alarm Point Settings

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H 4

L L

C>E

Each of the Eagle’s gas detection channels includes low and high gas alarms. The combustible gas channel also includes low and high alarms for PPM readings; the toxic gas channels also include STEL and TWA alarms.

This screen allows you to update one or more alarm points.

1. From the main menu, select the ALARM POINTS menu option.

2. Select the channel of the alarm point you want to update. The channel’s Set Low Alarm Point screen displays (in this example for the combustible gas channel).

NOTE: The Eagle displays the set alarm point screens for each channel in the

following sequence: low alarm, high alarm, TWA alarm (toxics only), and STEL alarm (toxics only).

3. Use the AIR/▲ and SHIFT/▼ buttons to display the desired setting.

4. Press the POWER/ENTER button to save the new alarm point and scroll to the next alarm point screen.

5. Repeat step 3 and 4 to update all alarm points for this channel.

6. Press the POWER/ENTER button again to return to the Set Alarm Points menu.

7. Repeat steps 2 through 6 until all desired alarm points are updated. Make sure you return to the Set Alarm Points menu to continue.

8. To exit the Set Alarm Points menu, press the SHIFT/▼ button until the cursor is next to ESCAPE.

9. Press the POWER/ENTER button to save the settings and return to the main menu.

Updating the Eagle’s Serial Number

Every Eagle is programmed with a unique serial number. The Data Logging option includes the serial number in its log data for identification purposes. The serial number setting accepts numeric (0 through 9) and alpha (A through Z) characters.

NOTE: The serial number is factory set and should not need to be changed.

However, if you “reset all defaults,” the serial number is reset to ******.

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1. From the main menu, select the SERIAL NO. menu option.

T L

RoIA

ANG

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired character, then press the POWER/ENTER button to save the character. The next character flashes.

3. Repeat step 2 to enter the remaining characters. The main menu displays after you enter the last character.

Updating the Lunch Break Setting

OFF (default): The Eagle automatically starts new TWA and PEAK reading collection at start up.

ON: The RESUME screen displays during start up. From this screen, you can choos e to continue accumulating TWA and PEAK readings from the last time the Eagle was used or start collecting new readings.

1. From the main menu, select the LUNCH BREAK menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

Updating the Alarm Latching Setting

ON: The Eagle remains in alarm condition until the alarm condition passes and the RESET/SILENCE is pressed.

OFF: The Eagle automatically resets its alarm when the alarm condition passes.

1. From the main menu, select the ALARM LATCHING menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

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Updating the Alarm Silence Setting

ACE

INPUT

NOTE: This feature works only when Alarm Latching is turned on.

ON: Press the RESET/SILENCE button to silence the buzzer during an alarm. The LEDs continue to flash, and the display continues to show the level of alarm. When the gas concentration falls below the low alarm level, press the RESET/SILENCE button to turn off the LEDs and remove the ALM1 message.

OFF: You cannot silence the buzzer.

1. From the main menu, select the ALARM SILENCE menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

Turning the User ID Function On or Off

ON: The User and Station ID screen displays during start up. From this screen, you can enter user, location, or other information at the beginning of each gas detection session (see page 23).

OFF (default): The User and Station ID screen does not display during start up.

1. From the main menu, select the USER ID menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

Updating the Auto Calibration Settings

The auto calibration setting is the calibration gas concentration you are using to calibrate each channel.

The Eagle includes default auto calibration settings for most target gases. For gases without default auto calibration, the setting is 0.

NOTE: You can also update auto calibration settings in Calibration mode. If you

update auto calibration settings in Calibration mode, you must continue with the calibration procedure. Updating these settings in Setup mode allows you to update the settings without calibrating the sensors.

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1. From the main menu, select the AUTO CALIBRATION menu op tion. (To display

. 0

L V P PPPMM

EOL

AAC

BRAT ION

<CH

4 >

TIME

LHT

the combustible gas channel in PPM, press the LEL/PPM button.)

2. Press and hold the SHIFT/▼ button, then press the DISP/ADJ button. The Auto

Calibration screen for the combustible gas channel displays.

3. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

4. Press the POWER/ENTER button to save the new setting. The Auto Calibration screen for the next channel displays.

5. Repeat steps 4 and 5 for the remaining channels.

6. Press the POWER/ENTER button to return to the main Auto Calibration screen.

7. Press the POWER/ENTER button to return to the main menu.

Updating the Back Light Setting

This setting defines how long the LCD backlight stays on when you press any but ton. The minimum setting is off; the maximum setting is 10 minutes. The default setting is 15 seconds.

1. From the main menu, select the LCD BACK LIGHT TIME menu option.

2. Press the AIR/▲ and SHIFT/▼ buttons to display the desired setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

Turning the Auto Fresh Air Function On or Off

WARNING: If Auto Fresh Air Adjust is ON, you must start the Eagle in a “fresh-

air” environment. If the Eagle is started in the pr esence of a target gas, the readings and alarms will not be accurate or reliable.

ON: The Eagle automatically sets the fresh air reading for all channels during the start-up sequence.

OFF (default): You must press the AIR/▲ button to set the fresh air reading for all channels.

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1. From the main menu, select the AUTO FRESH AIR ADJ. menu option.

ERHI

TJAAU .

MNTI

OPEFC

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

3. Press the POWER/ENTER button to enter the setting and return to the main menu.

Updating the Zero Follow Settings

The Zero Follow setting is not intended for customer setup. The default setting for most target gases is ON. The default setting for carbon dioxide sensors and some configurations of non-standard toxic gas sensors is OFF. The oxygen sensor does not include this feature.

CAUTION: Contact before changing this setting.

Updating the Confirmation Beep Setting

ON: The Eagle beeps once every 15 minutes to verify that it is operating. OFF (default): The Eagle does not sound a confirmation beep.

1. From the main menu, select the CONFIRMATION BEEP menu option.

2. Press the AIR/▲ or SHIFT/▼ button to display the desired setting.

3. Press the POWER/ENTER button to save the setting and return to the main menu.

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Returning to Default Settings

R S

LAY

SE TL

R S

LAY

SE TL

R S

LAY

SE TL

XEO

Each of the parameters in Setup mode has a default setting. The Eagle includes three different options for returning default settings: reset all default settings, reset the default alarm point settings only, and reset the default oxygen zero setting only.

CAUTION: If you reset all default settings, any changes made in setup mode or normal

operation, including calibration settings, will be lost.

To reset all default settings:

1. From the main menu, select the DEFAULT menu option.

2. Press the POWER/ENTER button to display the Set Default All screen.

3. Press the AIR/▲ button to reset all parameters to their default settings. The messages SAVING DATA and END display, then the main menu displays.

To reset all default alarm point settings:

1. From the main menu, select the DEFAULT menu option. The Set Default All screen displays.

2. Press the DISP/ADJ button to display the Set Default Alarm screen.

3. Press the AIR/▲ button to reset all alarm points to their default settings. The messages SAVING DATA and END display, then the main menu displays.

To reset the oxygen zero setting:

1. From the main menu, select the DEFAULT menu option. The Set Default All screen displays.

2. Press the DISP/ADJ button. The Set Default Alarm screen displays.

3. Press the DISP/ADJ button to display the Set Default Oxygen Zero screen.

4. Press the AIR/▲ button to reset the oxygen zero setting to its default value. The messages SAVING DATA and END display, then the main menu displays.

Eagle Instruction Manual Setup Mode • 37

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Calibration

Calibrate the Eagle when you replace a sensor . Also calibrate the Eagle periodically to assure proper sensor response.

The frequency of calibration depends upon the amount and type of use. A typical calibration frequency is once per month.

Calibration Supplies and Equipment

To calibrate the Eagle, you need:

• Known calibrating samples of target gases. The combustible and toxic gas samples should have concentrations between 10 and 50% of the full scale value. For example, if you are calibrating the catalytic combustible gas channel, your calibration cylinder should have a combustible gas concentration between 10% LEL and 50% LEL.

NOTE: If your catalytic combustible channel is calibrated to something other than

• An oxygen-free source, such as 100% nitrogen or CO in a nitrogen balance

• A demand-flow regulator to provide adequate sample gas flow

methane, use an appropriate gas cylinder to perform the calibration.

WARNING: RKI Instruments, Inc. recommends that you dedicate a regulator for

use with chlorine (Cl2) gas and that you do not use that dedicated regulator for any other gases, particularly hydrogen sulfide (H2S).

You can use the RKI Four-Gas Cylinder to adjust all the sensors at the same time with no need for a zero-oxygen source. This section includes instructions for calibration with the demand-flow regulator and RKI Four-Gas Cylinder. This section also includes instructions for calibration with individual cylinders.

Preparing for Calibration

1. Take the Eagle to a non-hazardous location with fresh-air conditions.

2. Turn on the Eagle and allow one minute for warm up.

3. Press and hold the AIR/▲ button until a tone sounds. The Eagle automatically sets the combustible gas and toxics readings to zero and

the oxygen reading to 20.9%.

4. Screw the regulator into the calibration cylinder.

5. Connect the calibration tubing to the regulator.

6. Press and hold the SHIFT/▼ button, then press the DISP/ADJ button. The Calibration menu displays.

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Calibrating the Eagle

AAC

AOE

INS

DAT

NORM L OP

BRAT ION

ECALIBRATION

. 0

L V P PPPMM

EOL

% %

AAC

BRAT ION

<CH

4 >

NOTE: The following screens illustrate a four-gas Eagle with the data logging

option and are intended as examples only. Your Eagle may display slightly different scree ns .

The Eagle’s Calibration menu includes two methods of calibration: Auto Calibration and Single Calibration.

• Auto Calibration: This method allows you to calibrate all four sensors

simultaneously. It is designed for use with the RKI Four-Gas Calibration Cylinder and is the quickest and easiest method to calibrate the Eagle.

• Single Calibration: This method allows y ou to c alibr ate one s enso r at a ti me. Us e

this method if you are only calibrating one or two sensors, if you are calibrating non-standard toxic sensors, or if you are not using the RKI Four-Gas Calibration Cylinder.

Calibrating with the Auto Calibration Method

This section describes calibration using the Auto Calibration method. To calibrate using the Single Calibration method, see “Calibrating with the Single Calibration Method” on page 40.

1. Use the AIR/▲ and SHIFT/▼ button to place the cursor next to the AUTO

CALIBRATION menu option.

2. Press the POWER/ENTER button to display the Calibration Values screen.

The gas concentrations displayed in the Calibration Values screen must match the gas concentrations listed on the Four-Gas Calibration Cylinder. If all concentrations match, go to step 7. If one or more concentrations do not match, continue with step 3.

3. To adjust the values on the screen, hold down the SHIFT/▼ button, and press the

DISP/ADJ button. The Auto Calibration screen for the combustible gas channel displays.

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4. Use the AIR/▲ (increase) and SHIFT/▼ (decrease) buttons to set the correct

AAC

AOE

INS

DAT

NORM L OP

BRAT ION

ECALIBRATION

combustible gas value.

5. Press the POWER/ENTER button to save the new setting. The Auto Calibration screen for the next channel displays.

6. Repeat steps 4 and 5 to set the correct values for the remaining channels and return to the Calibration Values screen.

NOTE: The RKI Four Gas Cylinder contains approximately 12% O2 by volume. Be

sure to set the “OXY” reading to agree with the concentration listed on the cylinder’s label, not zero.

7. With the Calibration Values screen displayed, press the POWER/ENTER button. The gas readings flash.

8. Connect the tubing from the regulator to the Eagle’s probe.Wait approximately 1 minute or until the readings stabilize.

9. Press the POWER/ENTER button to set the calibration to the programmed values.

If a sensor(s) cannot calibrate to the proper value, FAIL PUSH AIR KEY displays and the Eagle lists the sensor(s) that failed to calibrate. The buzzer and alarm lights activate. Press the AIR/▼ button to reset the alarm and return to the Calibration menu. Replace the failed sensor(s), then repeat calibration.

10. AUTO CALIBRATION END displays, then the Calibration menu displays.

11. Disconnect the tubing from the probe.

12. Unscrew the regulator from the calibration cylinder.

13. Press the SHIFT/▼ button to place the prompt next to the NORMAL OPERATION menu option, then press the POWER/ENTER button to return to the normal screen.

Calibrating with the Single Calibration Method

This section describes calibration using the Single Calibration method. To calibrate using the Auto Calibration method, see “Calibrating with the Auto Calibration Method” on page 39.

CAUTION: The single calibration method does not have a “FAIL” notification. Replace

sensors that cannot be set to agree with the calibration source, then recalibrate.

1. Use the AIR/▲ and SHIFT/▼ buttons to place the cursor next to the SINGLE CALIBRATION menu option.

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2. Press the POWER/ENTER button to display the Single Calibration menu.

OY CO

ACEL

HBRATION

ELL% APPLY GAS/ AD J / EN

3. Use the AIR/▲ or SHIFT/▼ button to place the cursor next to the channel to

calibrate (in this example the combustible gas channel).

4. Press the POWER/ENTER button. The Single Calibration screen displays for the channel you selected. The gas reading flashes.

5. Connect the tubing from the regulator to the Eagle’s probe.

NOTE: The combustible gas sensor is a general hydrocarbon sensor that responds

to most flammable vapors and gases; the response will vary depending upon the substance. For best results, calibrate the Eagle to the target gas or vapor.

6. If necessary, use the AIR/▲ (increase) and SHIFT/▼ (decrease) buttons to adjust the reading to match the concentration listed on the calibration cylinder.

7. Press the POWER/ENTER button to set the span value. SINGLE CALIBRATION END displays, then the Single Calibration menu displays.

8. Disconnect the tubing from the probe.

9. Repeat steps 3 through 8 for any other channels you want to calibrate. Make sure you use an appropriate calibration cylinder for each channel.

CAUTION: When calibrating the oxygen channel, verify the concentration of oxygen listed

on the cylinder’s label. For oxygen-free samples (100% nitrogen for example), set the oxygen span setting to 0.0%.

10. After the last channel is calibrated, disconnect the calibration tubing from the probe, then unscrew the regulator from the calibration cylinder.

11. With the Single Calibration menu displayed, press the SHIFT/▼ button until the cursor is next to ESCAPE.

12. Press the POWER/ENTER button to return to the Calibration menu.

13. Press the SHIFT/▼ button to place the cursor next to the NORMAL OPERATION menu option, then press the POWER/ENTER button to return to the normal screen.

Eagle Instruction Manual Calibration • 41

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Maintenance

TERY

MIN

.4.5V

TERY

60V.

Displaying the Battery Voltage

Check the battery voltage periodically. Replace or recharge the batteries before the voltage drops to 4.5 V.

WARNING: Take the Eagle to a non-hazardous location before replacing or

To display the battery voltage:

1. From the normal screen, press the DISP/ADJ button to enter display mode.

2. Press the DISP/ADJ button until the Battery Voltage screen displays.

3. To exit display mode, press the DISP/ADJ button until the normal screen displays.

recharging the batteries.

Replacing Alkaline Batteries

1. Turn off the Eagle.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

3. Remove the batteries and verify that the battery compartment and electrical contacts are clean.

4. Insert fresh batteries following the label on the inside of the case.

5. Place the top of the case in its original position, then secure it with the large screws you loosened in step 1.

Recharging Ni-Cd Batteries

1. Turn off the Eagle.

2. Plug the cord from the charger into the Eagle’s battery charger connector.

3. Plug in the AC line cord or 12 VDC supply to the charger. A full charge takes approximately 8 to 12 hours.

4. Unplug the supply and the charger before using the Eagle. See the charger label for directions.

NOTE: Setup mode allows you to select between alkaline and Ni-Cd batteries. The

two types of batteries have unique low battery alarm characteristics. To prevent unexpected low battery alarms, always make sure the battery type setting in Setup mode matches the type of batteries installed in the Eagle.

42 • M a i n t e n a n c e Eagle Instruction Manual

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Replacing the Probe’s Particle Filter and

Probe B ody

Hydrophobic Filter Disk

O-ring (Insi de)

O-ring

O-ri ng (Inside)

Particle Filter

O-ri ng

Hydrophobic

Filter Dis k

Super Toxic ProbeStanda r d Pr obe

Hydrophobic Filter Disk

Inspect the probe’s internal components if you notice that the Eagle’s pump sounds bogged down or if an unexplained low flow alarm occurs. Replace the particle filter if it appears to be dirty. Replace the hydrophobic filter disk if it appears dirty or saturated with liquid. Replace the O-rings in the probe if either of them appears damaged.

1. Grasp each end of the clear probe body firmly and unscrew the two halves from each other. One half includes a plastic tube fitting and the probe tube. The other half includes a metal fitting that mates with the sample hose or Eagle inlet fitting if it is a standard probe. This half has a plastic fitting if it is a super toxic probe.

2. Remove the white hydrophobic filter disk from the top of the particle filter or from the probe body.

3. Remove the particle filter from the probe body (if installed).

4. Clean the inside of the probe body if necessary.

5. Hold the probe half that has the plastic tube fitting and the probe tube with the fitting and tube facing down.

6. Place the new cone-shaped particle filter into the probe body so that the wide part of the filter is facing up.

Eagle Instruction Manual Maintenance • 43

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NOTE: If you have an Eagle that requires a super toxic probe, do not install the

particle filter.

7. Place the new filter disk flat on top of the particle filter. Make sure it is centered over the particle filter (if installed).

8. Carefully screw the other half of the probe body onto the half with the filter disk and particle filter (if installed) while keeping the probe oriented vertically to keep the disk centered.

9. When you feel the O-ring being compressed, grasp both ends of the probe and tighten them together very firmly to ensure a seal.

10. To test the seal, do the following.

• install the probe on the Eagle

• startup the Eagle

• confirm that a low flow alarm occurs when you cover the end of the probe

tube with your finger

• if a low flow alarm does not occur, hand tighten the probe further

• if a low flow alarm still does not occur when you cover the probe tube with

your finger, disassemble the probe, inspect the placement of the O-rings and filter disk, reassemble the probe, and re-test it.

Replacing Sensors

Electr and require periodic replacement. Combustibles sensor life is typically related to usage, but certain conditions may affect duration.

The Eagle sensors are easy to replace but do not contain user-serviceable components. For genuine RKI sensors, call your local distributor. All sensors are covered by a limited warranty; see warranty for details.

CAUTION: Avoid pulling on sensor wires. Always unplug at the connector.

Replacing the Combustibles Sensor

Replace the combustibles sensor when:

• The combustibles channel cannot be calibrated correctly.

• The LEL reading cannot be set to 0 by the Demand Zero command.

To replace the combustibles sensor:

1. Take the Eagle to a non-hazardous location, and turn the power off.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of

ochemical sensors (O2, H2S, and CO) gradually deteriorate, regardless of use,

the case and lay it aside.

3. Unplug the four-wire connector (red/white/green/black) from the circuit board.

4. Locate the com bustibles sensor . With the batterie s closest t o you, the comb ustibles sensor is at the top left corner of the sensor block.

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5. Remove the two screws in the oval keeper plate, and remove the sensor from the sensor block.

6. Unplug the cable socket from the top of the sensor. Retain the oval keeper plate for use with the replacement sensor.

7. Install the replacement sensor in reverse order.

Replacing the Oxygen Sensor

Replace the oxygen sensor when:

•The O2 channel cannot be set to 0.0% on an oxygen-free sample.

•The O2 display cannot be set to 20.9% by the Demand Zero command.

•The O

reading drifts noticeably. For example, if the O2 reading varies from 20.5 to

21.5 while you view the display for a few seconds.

To replace the oxygen sensor:

1. Take the Eagle to a non-hazardous location, and turn the power off.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

3. Locate the oxyge n sens or. With the b atteries c losest t o you, the o xygen se nsor is at the bottom left corner of the sensor block.

4. Unplug the cable leading from the ox ygen s ensor at the lar ge multi- pin connec tor.

5. Loosen the screws on the metal strap that covers the oxygen sensor.

6. Push the strap toward the screw that is furthest away from the battery compartment.

7. Swing the strap aside.

8. Remove the oxygen sensor.

9. Install the replacement sensor in reverse order.

Replacing the H2S or CO Sensor

Replace the H2S or CO sensor when:

•The H2S or CO channel cannot be calibrated correctly.

•The H

S or CO reading cannot be set to 0 by the Demand Zero command.

NOTE: Allow up to 1/2 hour after you replace the H2S or CO sensor, or if charged

batteries have not been installed for an extended period, for the channel to show a normal response, then calibrate the sensor.

To replace the H

S or CO sensor:

1. Take the Eagle to a non-hazardous location, and turn the power off.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

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3. Locate the toxic gas sensor you in tend to replace. With the batteries closest t o you, the sensor for Channel 3 is at the top right corner of the sensor block, and the sensor for Channel 4 is at the bottom right corner of the sensor block. Note the color of the leads extending from the sensor you intend to replace.

4. Unplug the appropriate sensor connector from the circuit board. Use the color of the leads to determine the appropriate connector.

5. Remove the sensor from the sensor block. If necessary, wiggle the sensor to work it out of the seal.

6. Install the replacement sensor in reverse order.

CAUTION: Verify that you install the H2S or CO sensor in the appropriate flow block

position. The Eagle will display inac curate H2S and CO readings if the sensors are not installed in the correct flow block positions.

CAUTION: The Eagle continues to display H2S and CO readings in the same channels as

it did previously regardless of which socket (EC1 or EC2) the sensor is wired to or into which flow block position the sensor is installed. However, the H

S and

CO reading will be inaccurate due to the charcoal filter installed before the CO flow block position.

46 • M a i n t e n a n c e Eagle Instruction Manual

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Appendix A: Parts List

Table 6 lists part numbers for the Eagle’s replacement parts and accessories.

Part Number Description

07-7008RK O-ring for top case thumbscrews 07-7210RK O-ring for inlet fitting half of probe 07-7304RK O-ring for tube half of probe 13-0100RK Shoulder strap 13-1080RK Thumbscrew, captive, 1/4-20, for top case 20-0640RK Carrying case (for Eagle and sta nda rd acce ss ories) 20-0642RK Carrying case (for Eagle, standard accessories, and calibration kit) 30-0600RK-01 Pump 33-0156RK-01 Filter element (for hydrophobic filter; pack of 5)

Table 6: Parts List

33-0160RK Filter, internal dust filter 33-1200RK Particle filter for standard probe 33-6091RK Filter, charcoal filter 35-0110RK Dummy sensor, toxic gas sensor position 35-0111RK Dummy sensor, oxygen sensor position 35-0112RK Dummy sensor, combustible gas sensor position 49-1140RK Alkaline battery, D-size (total of 4 required) 49-1240RK Ni-Cd battery, D-size (total of 4 required) 49-2149RK Battery charger, 220 VAC 49-2150RK Battery charger, 115 VAC (with alkaline battery recognition) 49-2151RK Battery charger, 12 VDC (with cigarette lighter plug) 49-2152RK Continuous operation adapter, 115 VAC (with 20-foot cable) 49-2153RK Continuous operation adapter, 12 VDC (with cigarette lighter plug) 52-0206RK Lapel buzzer 52-2034RK Remote audible alarm (with 20-foot cable) 52-2035RK Remote audible alarm and strobe light (with 20-foot cable) 57-0012RK Datalogging board (also requires 82-5007RK) 62-0125RK Sensor, combustible gas (hydrocarbon)

Eagle Instruction Manual Appendix A: Parts List • 47

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Table 6: Parts List (cont.)

Part Number Description

65-0601RK Sensor, oxygen 65-2005RK Sensor, carbon monoxide 65-2035RK Sensor, hydrogen sulfide 71-0028RK Eagle Instructio n Manual 80-0131RK-10 Probe, 10-inch hydrophobic (standard probe) 80-0132RK-10 Probe, 10-inch hydrophobic, super toxic (for Br

, ClO2, HBr, or HCL)

80-05XXRK Sample hose. Replace “XX” with length in feet. 5 foot hose is standard.

Available lengths for the Eagle are 3, 4, 5, 6, 10, 15, 20, 25, 30, 35, 40, 50, 75, 100, and 125 feet.

81-0154RK-02 Calibration cylinder, 4-gas (CH

; O2; CO; H2S), 58 liter

81-1054RK Regulator, demand-flow type, for all gases 81-0154RK-H2S is not

appropriate for in 58- and 103-liter calibration cylinders (cylinders with internal threads)

81-1054RK-H2S Regulator, demand-flow type , for CO, CO

, zero air, and LEL combustible gases in 34-liter aluminum, 58-liter,

, H2S, N2, NO, NO2, PH3, SiH4,

and 103-liter calibration cylinders (cylinders with internal threads)

82-5007RK Datalogging software and cable (also requires 57-0012RK)

48 • A p p e n d i x A : P a r ts L i s t Eagle Instruction Manual

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Appendix B: Methane Elimination

For applications where methane is an interfering gas, you can set the Eagle to eliminate most response to methane. The methane elimination switch is a standard feature on the circuit board inside the top of the Eagle’s case. An external switch is available as an option.

For methane elimination mode detection, the combustible gas channel must be set up as HEX or *** (see “Updating Channel Settings” on page 26). Eagles with the external methane elimination switch are factory-set with the correct display.

Setting up for Methane Elimination Mode

1. Take the Eagle to a fresh-air environment. Set the internal methane elimination switch to the HEX ON position or the external switch to Methane Response Off.

CAUTION: If the Eagle is equipped with an external methane elimination switch, do not

adjust the internal switch. The internal switch should always be in the CH4 position.

2. Allow 2 minutes for the combustibles sensor to stabilize.

3. Perform the demand zero procedure as described in “Preparing for Calibration” on page 38.

WARNING: DO NOT adjust the switch after re-zeroing the Eagle.

WARNING: Response to CH4 is greatly reduced when the internal switch is set to

“HEX ON” or the external switch is set to “Methane Response Off”. If used for methane detection, the internal switch must be set to “CH4” or the external switch set to “Methane Response On”.

Operating with Methane Response Off

Monitor for combustible gas as you normally would. When the Eagle is operating in Methane Elimination mode, response to methane is reduced by 90% or more. Response to hexane is reduced slightly (approximately 15%). To convert readings for most common combustible gases, see Table 7 on page 50.

Returning to Methane Response Mode

1. Take the Eagle to a fresh-air environment. Set the internal methane elimination switch to the CH4 position or the external switch to Methane Response On.

2. Allow 2 minutes for the combustibles sensor to stabilize.

3. Perform the demand zero procedure as described in “Preparing for Calibration” on page 38.

Eagle Instruction Manual Appendix B: Methane Elimination • 49

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Monitoring Combustible Gases Other Than Hexane

Use Table 7 to determine the concentration of combustible gases other than hexane. This table is based on the Eagle being in methane elimination mode (methane elimination switch set to HEX ON) and calibrated to hexane. Multiply the display reading by the factor in the appropriate column. For example, if you are using the Eagle to detect toluene and the display reads 10% LEL, the actual toluene reading is 10% x 0.67 = 7% LEL toluene.

To determine the concentration of other combustible gases with the Eagle in full response mode and calibrated to methane, see Table 4 on page 17.

Table 7: Methane Elimination Mode Conversion Factors (Hexane Calibration)

Target Gas LEL Factor PPM Factor Target Gas LEL Factor PPM Factor

Acetone .63 2.53 Isopropanol .73 .96 Benzene .95 1.06 Methane No

Response

Butyl Acrylate Butyl Acetate 1.45 3.30 Methyl Acetate .56 1.20

2-Butyl Alcohol 1. 5 3.41 Methyl Acrylate .65 1.20 1-Butyl Alcohol 2.10 2.02 Methyl Ethyl

Cyclohexane .93 1.26 Methyl Isobutyl

Cumene 1.96 .96 Mixed Xylenes .99 1.06 Ethylene

Dichloride Ethyl Alcohol .68 1.23 Pentane .76 1.04 Ethyl Chloride .57 .60 Propane .63 1.20 Ethyl Acrylate 1.19 2.53 Styrene 1.37 1.14 Hydrogen .44 1.36 Toluene .67 1.45

1.85 .85 Nonane 1.43 1.52

1.23 Methanol .6 2.02

.99 1.94

Keytone

.99 1.03

Keytone

No Response

Isobutane .71 1.16 Vinyl Ac etate

Monomer

1.18 1.97

** Vapor pressure too low for significant LEL reading.

WARNING: The Eagle’s alarms are initiated by the DISPLAY reading not the

FACTORED reading. If you are monitoring for toluene as in the above example and the low alarm is set for 10% LEL, the Eagle will initiate a low alarm at 7% LEL toluene (display reading of 10% LEL).

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Appendix C: Non-Standard Toxic Gas Sensors

Appendix C describes the Eagle’s non-standard, electrochemical toxic gas sensors (sensors other than CO or H2S). This appendix also describes calibrating and

replacing non-standard toxic gas sensors.

Specifications

Table 8 lists specifications for the non-standard toxic gas sensors. The alarm settings are user-adjustable (see “Updating the Alarm Point Settings” on page 32).

Table 8: Non-Standard Toxic Gas Sensors Specifications

Target Gas Range Alarm 1 Alarm 2

Ammonia 0 to 75.0 ppm 12.0 ppm 25.0 ppm 25.0 ppm 35.0 ppm Arsine 0 to 1.00 ppm 0.05 ppm 0.10 ppm 0.05 ppm OFF Arsine

Bromine* 0 to 1.00 ppm 0.05 ppm 0.10 ppm 0.10 ppm OFF Chlorine 0 to 3.00 ppm 0.50 ppm 1.50 ppm 0.50 ppm 1.00 ppm Chlorine

Dioxide* Diborane

Fluorine** 0 to 3.00 ppm 0.50 ppm 1.00 ppm 1.00 ppm 2.00 ppm Hydrogen

Bromide* Hydrogen

Chloride* Hydrogen

Cyanide

0 to 200 ppb

0 to 1.00 ppm 0.10 ppm 0.30 ppm 0.10 ppm 0.30 ppm

0 - 300 ppb

0 to 9.00 ppm 1.00 ppm 2.00 ppm OFF 3.00 ppm

0 to 15.0 ppm 2.0 ppm 5.0 ppm OFF OFF

0 to 30 ppm 3.0 ppm 5.0 ppm OFF 4.7 ppm

50 ppb 100 ppb 50 ppb OFF

50 ppb 100 ppb 100 ppb OFF

TWA

Alarm

STEL

Alarm

Hydrogen Fluoride**

Hydrogen Peroxide**

Hydrogen Selenide**

Hydrogen Sulfide 0 to 1.00 ppm 0.10 ppm 0.30 ppm 0.50 ppm 0.50 ppm Hydrogen Sulfide 0 to 30.0 ppm 10 ppm 15 ppm 10 ppm 15 ppm Nitric Oxide 0 to 100 ppm 10 ppm 25 ppm 25 ppm 50 ppm Nitrogen Dioxide 0 to 15.0 ppm 1.0 ppm 3.0 ppm 3.0 ppm 5.0 ppm

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0 to 9.00 ppm 1.00 ppm 2.00 ppm 1.00 ppm 2.00 ppm

0 to 3.00 ppm 0.50 ppm 1.00 ppm 1.00 ppm OFF

0 to 200 ppb

50 ppb 100 ppb 50 ppb 100 ppb

Table 8: Non-Standard Toxic Gas Sensors Specifications

Target Gas Range Alarm 1 Alarm 2

Ozone** 0 to 1.00 ppm 0.10 ppm 0.30 ppm 0.08 ppm 0.10 ppm Phosphine 0 to 1.00 ppm 0.10 ppm 0.30 ppm 0.30 ppm 1.00 ppm Silane 0 to 15.0 ppm 2.0 ppm 5.0 ppm 5.0 ppm 5.0 ppm Sulfur Dioxide 0 to 10.0 ppm 1.0 ppm 2.0 ppm 2.0 ppm 5.0 ppm Sulfur Dioxide 0 to 15 ppm 1.0 ppm 2.0 ppm 2.0 ppm 5.0 ppm

ppb (parts per billion) *Use the super toxic probe (particle filter removed) when monitoring for these gases. **Do not use a probe when monitoring for these gases. The probe will absorb the gas sample.

TWA

Alarm

STEL

Alarm

Hose and Probe

Some super toxic gases require a super to xic probe with a plastic fitting instead of the standard hose with the metal fitting. This super toxic probe does not have a particle filter installed. Use a short tubing stub to connect the super toxic probe to the inlet of the Eagle.

Other super toxic gases cannot be measured with a probe at all. In both cases, a 3 foot Teflon hose is included with the instrument instead of the standard hose. See the above table for the gases that fall into either category.

Description

Non-standard toxic gas sensors are mounted in the front half of the instrument case. These sensors each include a dedicated amplifier with ZERO and SPAN controls. A bracket secures the sensor/amplifier assembly to the instrument case. A flow adapter connected to the sensor allows th e sample to flow throug h the non-standard toxic gas sensor. A seven-position connector plugs into the EC3 (channel 3) or EC4 (channel 4) socket on the analog PCB.

Keeping Fresh Batteries in a Non-Standard Toxic Eagle

The non-standard toxic sensors require a bias voltage to maintain proper operation. This bias voltage is maintained even when the Eagle is turned off as long as the batteries in the Eagle have enough voltage to operate the Eagle (4.5 volts or greater). Once the batteries are drained to the point that they will not operate the Eagle, they will no longer provide a reliable bias voltage to the non-standard toxic sensors. When the Eagle indicates a dead battery alarm, change the batteries as soon as possible to maintain the bias voltage.

If the Eagle is stored for an extended period, check the bat tery voltage mo nthly. If the battery voltage is close to 4.5 volts, replace the batteries. A set of batteries with full capacity will maintain a bias voltage on non-standard toxic sensors in a stored Eagle

52 • Appendix C: Non-S tandard Toxic Gas S ensors Eagle Instruction Manual

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for at least 3 months.

WARNING: If the non-standard toxic sensors are allowed to be without a bias

voltage for an extended period, they will deteriorate and no longer operate properly. Be sure to keep fresh batteries in the Eagle when it is not being used or if it is stored.

Calibrating Non-Standard Toxic Gas Sensors

Recommended calibration frequency for non-standard toxics sensors is 3 to 6 months.

1. Navigate to the Single Calibration screen as described in “Calibrating with the Single Calibration Method” on page 40.

2. At the Single Calibration screen, press the SHIFT/▼ button to scroll down to the appropriate gas, then press the POWER/ENTER button.

3. Screw the regulator to the appropriate calibration cylinder.

WARNING: RKI Instruments, Inc. recommends that you dedicate a regulator for

use with chlorine (Cl2) gas and that you do not use that dedicated regulator for any other gases, particularly hydrogen sulfide (H2S).

4. Connect the tubing from the regulator to the Eagle’s probe. Allow 2 minutes for the reading to stabilize.

5. If necessary, use the AIR/▲ (increase) and SHIFT/▼ (decrease) buttons to adjust the reading to match the concentration listed on the calibration cylinder.

Go to the next section, “Adjusting the Sensor Controls,” if you are unable to match the reading to the concentration of the cylinder.

6. Press the POWER/ENTER button to set the span value. SINGLE CALIBRATION END displays, then the Single Calibration menu displays.

7. Disconnect the tubing from the probe.

8. Unscrew the regulator from the calibration cylinder.

9. With the Single Calibration menu displayed, press the SHIFT/▼ button until the cursor is next to ESCAPE.

10. Press the POWER/ENTER button to return to the Calibration menu.

11. Press the SHIFT/▼ button to place the cursor next to the NORMAL OPERATION menu option, then press the POWER/ENTER button to return to the normal screen.

Adjusting the Sensor Controls

CAUTION: Only perform the following steps if you are unable to set the correct calibration

reading with the AIR/▲ and SHIFT/▼ buttons.

1. Use the AIR/▲ and SHIFT/▼ buttons to set the reading to the middle of the

Eagle Instruction Manual Appendix C: Non-Standard Toxic Gas Sensors • 53

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range in which you can currently adjust the reading. For example, if you can set the reading from a minimum of 1.0 ppm to a maximum of 3.0 ppm, set the display to 2.0 ppm.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

3. Locate the sensor in the front half of the bottom case. The sensor with wires connected to EC3 on the analog PCB displays its reading on the third line of the screen. The sensor connected to EC4 on the analog PCB displays its reading on the fourth line of the screen.

4. Adjust the sensor’s SPAN control one turn and observe the display reading. Continue to adjust the SPAN control until the display reading matches the concentration of the calibration cylinder.

The SPAN control is located next to the sensor on the side closest to the front of the instrument.

5. Press the POWER/ENTER button to set the span value. SINGLE CALIBRATION END displays, then the Single Calibration menu displays.

6. Place the top of the case in its original position, then secure it with the large screws you loosened in step 2.

7. Disconnect the tubing from the probe, then unscrew the regulator from the calibration cylinder.

8. With the Single Calibration menu displayed, press the SHIFT/▼ button until the cursor is next to ESCAPE.

9. Press the POWER/ENTER button to return to the Calibration menu.

10. Press the SHIFT/▼ button to place the cursor next to the NORMAL OPERATION menu option, then press the POWER/ENTER button to return to the normal screen.

NOTE: If a non-standard toxics channel displays Zero Fail after the Demand Zero

procedure, adjust the ZERO control (next to SPAN) until the reading displays the smallest increment above 0.0. For example, 0.01 or 0.1. Repeat Demand Zero.

Replacing Non-Standard Toxic Gas Sensors

Replace the non-standard toxic gas sensor when:

• The toxic gas channel cannot be calibrated correctly.

• The toxic gas reading can not be set to zer o by the Demand Zero command or zero potentiometer.

NOTE: RKI Instruments, Inc. recommends that you return the Eagle for

replacement of the non-standard t oxic gas sen sor. The f ollowin g proc edure is provided to allow you to replace the sensor if necessary.

1. Take the Eagle to a non-hazardous location, and turn the power off.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of

54 • Appendix C: Non-S tandard Toxic Gas S ensors Eagle Instruction Manual

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the case and lay it aside.

3. In the front half of the bottom case, locate the sensor you want to replace. The sensor with wires connected to EC3 on the analog PCB displays its reading on the third line of the screen. The sensor connected to EC4 on the analog PCB displays its reading on the fourth line of the screen.

4. Remove the two screws at the base of the bracket.

5. Lift the sensor asse mbly up en ough to remove t he flow adapter (two scre ws). Th e flow adapter is attached to the sensor.

CAUTION: Avoid pulling on sensor wires. Always unplug at the connector.

6. Disconnect the connector from the analog PCB. Note to which socket (EC3 or EC4) the connector is connected.

7. Remove the sensor assembly from the instrument case.

8. Remove the two screws that secure the sensor assembly to the bracket.

9. Remove the two screws that secure the sensor to the amplifier, then remove the sensor from the amplifier. Retain the amplifier for use with the replacement sensor.

10. Install the replacement sensor in reverse order.

NOTE: Allow up to 4 hours after you replace a non-standard toxic gas sensor, or if

charged batteries have not been installed for an extended period, for the channel to show a normal response, then calibrate the sensor.

Parts List

Table 9 lists part numbers for replacement parts and accessories of the Eagle’s nonstandard toxic gas sensors.

Table 9: Parts List: Non-Standard Toxic Gas Sensors

Part Numb er Descripti on

06-1273RK

81-0149RK-02 Calibration cylinder, 58-liter, 5 ppm H 81-0170RK-02 Calibration cylinder, 58-liter, 5 ppm SO 81-0176RK-02 Calibration cylinder, 58-liter, 25 ppm NH 81-0185RK-02 Calibration cylinder, 58-liter, 0.5 ppm PH

Tubing, 1/4 in. x 1/8 in. PTFE (order by foot; 3 ft. standard; consult for lengths longer than 3 ft.)

S in nitrogen

in nitrogen

81-0192RK-02 Calibration cylinder, 58-liter, 2 ppm Cl 81-0195RK-02 Calibration cylinder, 58-liter, 5 ppm HCl in nitrogen

Eagle Instruction Manual Appendix C: Non-Standard Toxic Gas Sensors • 55

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in nitrogen

Table 9: Parts List: Non-Standard Toxic Gas Sensors

Part Numb er Descripti on

81-1054RK Regulator, demand-flow type, for all gases 81-0154RK-H2S is not

appropriate for in 58- and 103-liter calibration cylinders (cylinders with internal threads)

81-1054RK-H2S Regulator, demand-flow type, for CO, CO

, SO2, zero air, and LEL combustible gases in 34-liter aluminum,

SiH

, H2S, N2, NO, NO2, PH3,

58-liter, and 103-liter calibration cylinders (cylinders with internal

threads) ES-237-H2S Sensor, hydrogen sulfide, 0 to 30.0 ppm range ES-238-SO2 Sensor, sulphur dioxide, 0 to 10 ppm range ES-23A-NO Sensor, nitric oxide ES-23AH-ASH3 Sensor, arsine, 0 to 1.00 ppm range ES-23AHS-ASH3 Sensor, arsine, 0 to 0.20 ppm range ES-23AH-CL2 Sensor, chlorine (used for certain chlorine applications and for chlorine

dioxide) ES-23AH-H2S Sensor, hydrogen sulfide, 0 to 1.00 ppm range ES-23AH-NO2 Sensor, nitrogen dioxide ES-23AH-O3 Sensor, ozone, 0 to 5.00 ppm range ES-23AH-PH3 Sensor, phosphine ES-23AH-SIH4 Sensor, silane ES-23AY-B2H6 Sensor, diborane ES-23DH-H2O2 Sensor, hydrogen peroxide ES-23DH-HCN Sensor, hydrogen cyanide ES-23E-HBR Sensor, hydrogen bromide ES-23E-SO2 Sensor, sulfur dioxide, 0 to 15 ppm range ES-23R-NH3 Sensor, ammonia ES-23SD-H2SE Sensor, hydrogen selenide ES-K233-BR2 Sensor, bromine ES-K233-CL2 Sensor, chlorine (standard chlorine sensor) ES-K233-F2 Sensor, fluorine ES-K233-HCL Sensor, hydrogen chloride ES-K233-HF Sensor, hydrogen fluoride ES-K239C-O3 Sensor, ozone, 0 to 1.00 ppm range

56 • Appendix C: Non-S tandard Toxic Gas S ensors Eagle Instruction Manual

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Appendix D: Carbon Dioxide Sensors

Insta ll black caps

when scrubber not

in use.

End Caps

Appendix D describes the Eagle’s infrared carbon dioxide (CO2) sensors. It also describes calibrating and replacing CO2 sensors.

Specifications

Table 10 lists specifications for the carbon dioxide sensors. The alarm settings are user-adjustable (see “Updating the Alarm Point Settings” on page 32).

Table 10: Carbon Dioxide Sensor Specifications

Range Alarm 1 Alarm 2 TWA Alarm STEL Alarm

0 - 5000 ppm OFF OFF OFF OFF 0 - 10,000 ppm 5000 ppm OFF 5000 ppm OFF 0 - 5.00% CO2 0.50% CO2 3.00% CO2 0.50% CO2 3.00% CO2

0 - 20.0% OFF OFF OFF OFF 0 - 60.0% OFF OFF OFF OFF

Description

The Eagle uses an infrare d sensor to detect carbon dioxide. The carbon dioxide sensor includes a dedicated amplifier with ZERO and SPAN controls. A bracket secures the sensor/amplifier assembly to the instrument case. A four-position connector plugs into the EC3 (channel 3) or EC4 (channel 4) socket on the analog PCB.

CO2 Scrubber

A carbon dioxide scrubber is mounted to the exterior front of Eagles that are factoryshipped with carbon dioxide sensors for the ranges 0 - 5,000 ppm, 0 - 10,000 ppm, and 0 - 5%.

NOTE: Eagles with a range of 0 - 20% and 0 - 60% CO2 do not include a scrubber

since the normal background of CO the full scale of these units.

This scrubber is for use when setting the carbon dioxide sensor’s zero reading only. Two black vinyl caps cover eith er end of the ca rbon diox ide scru bber. To pro long the life of the scrubber, be sure the caps are installed while the scrubber is not in use or while it is being stored. Replace the scrubber when it turns from white to a violet color.

in air is negligible when compared to

Eagle Instruction Manual Appendix D: Carbon Dioxide Sensors • 57

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CAUTION: Do not connect the probe to the scrubber during normal operation or when

setting the span reading during calibration.

Normal Operation of Carbon Dioxide Sensors

Carbon dioxide is a background gas in fresh air. Table 11 indicates typical fresh air readings for each of the Eagle’s carbon dioxide sensors.

Table 11: Carbon Dioxide Fresh Air Readings

Range

0 - 5000 ppm 400 ppm

0 - 10,000 ppm 400 ppm

0 - 5.00% 0.04%

0 - 20.0 & 0 - 60.0% 0.0%

Approximate

Fresh Air Reading

Demand Zero for Carbon Dioxide Sensors

When setting the zero reading, the carbon dioxide scrubber mounted to the front of the Eagle allows you to eliminate carbon dioxide normally found in fresh air.

NOTE: When performing a demand zero with a 0 - 20% or 0 - 60% CO2 unit, the use

of a scrubber is not required.

1. Remove the black caps from the ends of the carbon dioxide scrubber. Be sure to grab the scrubber by the Eagle fitting so that the fitting and tubing do not come off.

2. Connect the carbon dioxide scrubber directly to the Eagle’s inlet fitting.

3. Wait one minute for the fresh air sample to flow through the carbon dioxide scrubber, then press the AIR/▲ button to set the zero reading.

If the carbon dioxide sensor fails when you press the AIR/▲ button, use the zero control (marked F. ZERO) on the amplifier to adjust the reading to zero.

CAUTION: Do not adjust the coarse zero potentiometer (marked C.ZERO).

4. Remove the scrubber from the inlet fitting.

5. Put the caps back on the scrubber.

58 • Appendix D: Carbo n Dioxide Sensors Eagle Instruction Manual

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Calibrating Carbon Dioxide Sensors

Recommended calibration frequency for carbon dioxide sensors is once every 3 months. Enter Calibration mode and calibrate carbon dioxide sensors as described in the Calibration section of this manual. Use the Auto Calibration method if a calibration cylinder is available that includes all target gases for your Eagle. Use the Single Calibration method if you are using a carbon dioxide calibration cylinder.

NOTE: If you are using the Auto Calibration method, go to the Calibration Values

screen, verify that the carbon dioxide value matches the concentration of carbon dioxide in the four-gas calibration cylinder, then proceed with step

1. At the Single Calibration screen, press the SHIFT/▼ button to scroll down to the carbon dioxide channel, then press the POWER/ENTER button.

2. Screw the regulator to the appropriate calibration cylinder.

3. Connect the tubi ng from the reg ulator to the Eag le’s probe. A llow 1 minute fo r the reading to stabilize.

4. If necessary, use the AIR/▲ (increase) and SHIFT/▼ (decrease) buttons to adjust the carbon dioxide reading to match the concentration listed on the calibration cylinder.

Go to the next section, “Adjusting the sensor poten tiometers ,” if you a re unable to match the reading to the concentration of the calibration cylinder.

5. Press the POWER/ENTER button to set the span value. SINGLE CALIBRATION END displays, then the Single Calibration menu displays.

6. Disconnect the tubing from the probe, then unscrew the regulator from the cylinder.

7. With the Single Calibration menu displayed, press the SHIFT/▼ button until the prompt is next to the last channel, then press the SHIFT/▼ button again. The ESCAPE message displays.

8. Press the POWER/ENTER button to return to the Calibration menu.

9. Press the SHIFT/▼ button to place the prompt next to the NORMAL OPERATION menu option, then press the POWER/ENTER button to return to the normal screen.

Adjusting the Sensor Controls

CAUTION: Only perform the following steps if you are unable to set the correct calibration

reading with the AIR/▲ and SHIFT/▼ buttons.

1. Use the AIR/▲ and SHIFT/▼ buttons to set the reading to the middle of the range in which you can currently adjust the reading. For example, if you can set the reading from a minimum of 1.00% CO2 to a maximum of 3.00% CO2, set the

display to 2.00% CO

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

Eagle Instruction Manual Appendix D: Carbon Dioxide Sensors • 59

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3. Locate the carbon dioxide sensor in the front half of the bottom case. A sensor with wires connected to EC3 on the analog PCB displays its reading on the third line of the screen. A sensor connected to EC4 on the analog PCB displays its reading on the fourth line of the screen.

4. Adjust the carbon dioxide sensor’s SPAN control one turn and observe the display reading. Continue to adjust the SPAN control until the display reading matches the concentration of the calibration cylinder.

The SPAN control is located on the top edge of the amplifier and is the control closest to the fro nt of the instrument . (The fro nt of the in strument has the sc rubber attached to it.)

5. Press the POWER/ENTER button to set the span value. SINGLE CALIBRATION END displays, then the Single Calibration menu displays.

6. Place the top of the case in its original position, then secure it with the large screws you loosened in step 5.

7. Disconnect the tubing from the probe.

8. Unscrew the regulator from the calibration cylinder.

9. With the Single Calibration menu displayed, press the SHIFT/▼ button until the prompt is next to the last channel, then press the SHIFT/▼ button again. The ESCAPE message displays.

10. Press the POWER/ENTER button to return to the Calibration menu.

11. Press the SHIFT/▼ button to place the prompt next to the NORMAL OPERATION menu option, then press the POWER/ENTER button to return to the normal screen.

Replacing Carbon Dioxide Sensors

Return the Eagle to RKI Instruments, Inc. for replacement of the carbon dioxide sensor when:

• The carbon dioxide channel cannot be calibrated correctly.

• The carbon dioxide reading cannot be set to zero by the Demand Zero command or zero potentiometer.

60 • Appendix D: Carbo n Dioxide Sensors Eagle Instruction Manual

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Parts List

Table 12 lists part numbers for replacement parts and accessories of the Eagle’s carbon dioxide sensors.

Table 12: Parts List: Carbon Dioxide Sensors

Part Numb er Description

33-6010RK-01 Scrubber, carbon dioxide 81-0070RK-03 Calibration cylinder, 103-liter (2000 ppm CO

81-0071RK-03 Calibration cylinder, 103-liter (5000 ppm CO 81-0072RK-03 Calibration cylinder, 103-li ter (2.5% CO 81-0073RK-03 Calibration cylinder, 103-liter (15% CO

)

81-1054RK Regulator, demand-flow type, for all gases 81-0154RK-H2S is not

appropriate for in 58- and 103-liter calibration cylinders (cylinders with internal threads)

81-1054RK-H2S Regulator, demand-flow type, for CO, CO

, SO2, zero air, and LEL combustible gases in 34-liter aluminum, 58-

SiH

, H2S, N2, NO, NO2, PH3,

liter, and 103-liter calibration cylinders (cylinders with internal threads)

Eagle Instruction Manual Appendix D: Carbon Dioxide Sensors • 61

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Appendix E: Infrared Methane Sensors

This appendix describes the Eagle’s infrared methane sensors. This appendix also describes calibrating and replacing the infrared methane sensors.

Target Gases

The infrared methane sensors are setup for and factory-calibrated to methane. The infrared methane sensor also responds to the following combustible gases:

ethane, hexane, IPA, isobutane, MEK, propane, toluene. The infrared methane sensor does not respond to or responds poorly to the following

combustible gases: acetylene, hydrogen, styrene.

Specifications

Table 13 lists specifications for the infrared methane sensors. The alarm settings are user-adjustable (see “Updating the Alarm Point Settings” on page 32.)

Table 13: Infrared Methane Sensor Specifications

Range Increment Alarm 1 Alarm 2 TWA STEL

0 to 100.0% LEL CH 0 to 50,000 ppm

0 to 100.0% Volume CH Autoranging %LEL/%Volume

0 to 100% LEL 0 to 50,000 ppm 0 to 100.0% Volume

0.5% LEL 100 ppm

0.5% Volume 10.0% VOL 20.0% VOL N/A N/A

1% LEL 500 ppm

0.5% Volume

10.0% LEL 5,000 ppm

10% LEL

5,000 ppm

N/A

50.0% LEL

25,000 ppm

50% LEL

25,000 ppm

N/A

N/A N/A

N/A N/A N/A

N/A N/A

N/A N/A N/A

Description

The infrared methane sensor is mounted in the front half of the instrument case. The sensor is attached and wired to a dedicated amplifier, which includes ZERO and SPAN controls. A bracket secures the sensor/amplifier assembly to the instrument case.

Eagles with a 0 to 100% LEL infrared methane sensor do not include the standard catalytic combustible gas sensor. In these models, the infrared methane sensor is wired to the EC4 socket on the analog PCB and the gas reading is displayed in channel 1. This sensor is also capable of measuring in the PPM range.

Eagles with a 0 to 100% Volume CH standard combustible gas sensor. Table 14 lists the sensor configuration for 0 to 100%

Volume CH4 Eagles. Not all channels may be active in your Eagle.

infrared methane sensor may also include the

Table 14: Sensor Configuration for Infrared Methane Sensors

(0 to 100% Volume)

Channel Sensor Analog PCB Socket

1 Standard combustible gas (0 to 100% LEL) COMB

62 • Appendix E: Infrared Me thane Sensors Eagle Instruction Manual

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Table 14: Sensor Configuration for Infrared Methane Sensors

(0 to 100% Volume)

Channel Sensor Analog PCB Socket

2 Infrared methane (0 to 100% Vol. CH4)EC4 3 Oxygen CN2

4 Toxic gas or infrared carbon dioxide EC1, EC2, or EC3

Calibrating Infrared Methane Sensors

Recommended calibration frequency for the infrared methane sensor is once every 3 months. Enter Calibration mode and calibrate the infrared methane sensor using the same procedure as the standard combustible gas sensor (see “Calibration” on page 38).

NOTE: The 0 to 100% Volume CH4 version of the infrared meth ane sens or requir es

the use of a sample bag due to the type of calibration cylinder used. See Table 15 on page 64 for ordering information.

Adjusting the Sensor Controls

CAUTION: Only perform the following steps if you are unable to set the correct calibration

reading with the AIR/▲ and SHIFT/▼ buttons.

1. Use the AIR/▲ and SHIFT/▼ buttons to set the reading to the middle of the

range in which you can currently adjust the reading. For example, if you can set the reading from a minimum of 10% LEL to a maximum of 40% LEL, set the display to 25% LEL.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

3. Locate the infrared methane sensor in the front half of the bottom case. It is connected to the EC4 socket on the analog PCB.

4. Adjust the sensor’s SPAN control one turn and observe the display reading. Continue to adjust the SPAN control until the display reading matches the concentration of the calibration cylinder.

The SPAN control is on the top edge of the amplifier and is the control closest to the front of the instrument.

5. Place the top of the case in its original position, then secure it with the large screws you loosened in step 5.

6. Continue with the normal calibration procedure.

Eagle Instruction Manual Appendix E: Infrared Methane Sensors • 63

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Replacing Infrared Methane Sensors

Return the Eagle to RKI Instruments, Inc. for replacement of the infrared methane sensor when:

• The infrared methane channel cannot be calibrated correctly.

• The infrared methane reading cannot be set to zero by the Demand Zero command.

Parts List

Table 15 lists part numbers for accessories needed to calibrate the Eagle’s infrared 100% volume methane sensor.

Table 15: Parts List: Infrared Methane Sensors

Part Numb er Description

81-0015RK-01 Calibration cylinder, 34-liter,50% volume CH 81-1001RK Dispensing valve (for 34-liter calibration cylinders)

81-1126RK Calibration sample bag, tedlar (9 in. x 12 in.) 81-1127RK Calibration sample bag, tedlar (12 in. x 12 in.)

64 • Appendix E: Infrared Me thane Sensors Eagle Instruction Manual

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Appendix F: Infrared Hydrocarbon Sensor

This appendix describes the Eagle’s infrared hydrocarbon (HC) sensor. This appendix also describes calibrating and replacing the infrared HC sensor.

Target Gases

The infrared HC sensor is a general hydrocarbon sensor and is factory-calibrated to isobutane.

Specifications

Table 16 lists specifications for the infrared HC sensor. The alarm settings are useradjustable (see “Updating the Alarm Point Settings” on page 32.)

Table 16: Infrared HC Sensor Specifications

Range Increment Alarm 1 Alarm 2 TWA STEL

0 to 100% LEL HC 0 to 18,000 PPM

0 to 30.0% Volume HC 0.5% Volume N/A N/A N/A N/A

1% LEL 200 ppm

10% LEL

1,800 ppm

50% LEL

9,000 ppm

N/A N/A

Description

The infrared HC sensor is mounted in the front half of the instrument case. The sensor is attached and wired to a dedicated amplifier, which includes ZERO and SPAN controls. A bracket secures the sensor/amplifier assembly to the instrument case.

The infrared HC sensor is wired to the EC4 socket on the analog PCB and the gas reading is displayed in channel 1. The HC channel can also be displayed in PPM by using the LEL/PPM button.

Eagles with an infrared HC sensor do not include the standard catalytic combustible gas sensor. Table 17 lists the sensor configuration for Eagles that include this sensor. Not all channels may be active in your Eagle.

Table 17: Sensor Configuration for Eagles with Infrared HC Sensors

Channel Sensor Analog PCB Socket

1 Infrared HC EC4 2 Oxygen CN2 3 Toxic gas or infrared carbon dioxide EC1, EC2, or EC3 4 Toxic gas or infrared carbon dioxide EC1, EC2, or EC3

Eagle Instruction Manual Appendix F: Infrared Hydrocar bon Sensor • 65

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Calibrating the Infrared HC Sensor

Recommended calibration frequency for the infrared HC sensor is once every 3 months. Enter Calibration mode and calibrate the infrared HC sensor using the same procedure as the standard combustible gas sensor (see “Calibration” on page 38).

Be sure to use 50% LEL isobutane to calibrate the infrared HC sensor, not methane. If calibrating only an infrared HC channel, use a 50% LEL isobutane cylinder and the single calibration method. If calibrating multiple channels that include infrared HC, oxygen, CO, or H2S, use a 4-gas mix calibration cylinder with isobutane and the auto

calibration method. If calibrating other channel types, use an appropriate calibration cylinder and the single calibration method.

Adjusting the Sensor Controls

CAUTION: Only perform the following steps if you are unable to set the correct calibration

reading with the AIR/▲ and SHIFT/▼ buttons.

2. Unscrew the two large screws on the top of the case, then carefully lift the top of the case and lay it aside.

3. Locate the infrared HC sensor in the front half of the bottom case. It is connected to the EC4 socket on the analog PCB.

4. Adjust the sensor’s SPAN control one turn and observe the display reading. Continue to adjust the SPAN control until the display reading matches the concentration of the calibration cylinder.

The SPAN control is on the top edge of the amplifier and is the control closest to the front of the instrument.

5. Place the top of the case in its original position, then secure it with the large screws you loosened in step 5.

6. Continue with the normal calibration procedure.

Replacing the Infrared HC Sensor

Return the Eagle to RKI Instruments, Inc. for replacement of the infrared HC sensor when:

• The infrared HC channel cannot be calibrated correctly.

• The infrared HC reading cannot be set to zero by the Demand Zero command.

66 • Appendix F: Infrared Hydrocarbon Sensor Eagle Instruction Manual

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Parts List

Table 18 lists part numbers for replacement parts and accessories of the Eagle’s infrared HC sensor.

Table 18: Parts List: Infrared HC Sensors

Part Numb er Description

06-1248RK-03 Tubing, 3/16” x 5/16”, polyurethane, 3 foot length, for calibration kit 81-0018RK Calibration cylinder, 50% LEL isobutane in air, 17 liter steel 81-0018RK-01 Calibration cylinder, 50% LEL isobutane in air, 34 liter steel 81-0018RK-03 Calibration cylinder, 50% LEL isobutane in air, 103 liter steel 81-0158RK-02 Four-gas calibration cylinder , 50% LEL i sobutane/ 12% O

ppm H

S, 58 liter aluminum

81-0158RK-04 Four-gas calibration cylinder , 50% LEL i sobutane/ 12% O

ppm H

S, 34 liter aluminum

/50 ppm CO/25

81-1054RK Regulator, demand flow, for all gases 81-0154RK-H2S is not appropriate

for in 34AL/58/103 li ter calibration cylinders (cylinders with internal threads)

81-1054RK-H2S Regulator, demand-flow type, for CO, CO

, SO2, zero air, and LEL combustible gases in 34-liter aluminum, 58-

SiH

, H2S, N2, NO, NO2, PH3,

liter, and 103-liter calibration cylinders (cylinders with internal threads)

81-1055RK Regulator, demand flow, for all gases in 17 liter and 34 liter steel

calibration cylinders (cylinders with internal threads)

Eagle Instruction Manual Appendix F: Infrared Hydrocar bon Sensor • 67

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Appendix G: Eagle Tank Tester Model

The Eagle Tank Tester model is intended for checking tanks or vessels that may contain residual hydrocarbon vapors or water or may have been purged of oxygen. You can also use this model as a standard Eagle gas monitor by connecting the standard hose and probe and updating the oxygen alarms to the default settings.

Description

The tank tester model has an additional socket on the front on the housing to accommodate connection of the float probe assembly. This model includes the following non-standard components.

Float Probe Assembly

The float probe assembly helps prevent liquid from being drawn into the Eagle. The float probe assembly is 12-feet long. A quick disconnect fitting at one end of the assembly connects to the Eagle’s inlet fitting. The same end of the probe also includes a short wire that terminates in a jack. This jack connects to the float probe socket that is adjacent to the Eagle’s inlet fitting. The f loat probe s witch at the oppo site end of t he 12-foot cable shuts off the pump if the probe begins to be submerged into a liquid.

To use the float probe assembly:

CAUTION: Drawing water, gasoline, or other liquids into the Eagle will cause damage.

1. Attach the quick disconnect fitting to the Eagle’s standard inlet fitting.

2. Attach the jack to the socket that is adjacent to the inlet fitting.

3. Lower the probe into the tank or vessel. Lower the probe very slowly to allow the float switch to activate if necessary.

Dilution Fitting (1:1)

CAUTION: When measuring oxygen readings, remove the dilution fitting or use your

finger to seal the small dilution hole on the side of the dilution fitting.

The standard combustible gas sensor requires oxygen to operate. In environments where there is not enough oxygen to operate the combustible gas sensor, (for example a tank purged with an inerting gas), the 1:1 dilution fitting adds sufficient oxygen by blending ambient air with the incoming sample. The standard dilution fitting dilutes at a ratio of 1:1 (one part air to one part sample).

To attach the dilution fitting:

1. Attach the dilution fitting’s quick disconnect fitting to the Eagle’s inlet fitting.

2. Attach the hose to the opposite end of the dilution fitting.

NOTE: When using the dilution fitting, multiply the combustible gas reading (LEL

or PPM) by 2 to determine the actual combustible gas concentration. Always remove the dilution fitting or seal the dilution hole to measure for oxygen.

68 • Appendix G: Eagle Tan k Tester Model Eagle Instruction Manual

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Alarms

The Eagle Tank Tester model has two alarms for oxygen. They are factory-set at 5.0% by volume (increasing) and 19.5% by volume (decreasing).

The increasing alarm is used to monitor a purged vess el to alert y ou to a risi ng oxygen condition. The decreasing alarm is generally used for confined space entry to warn you of dangerously low breathing levels.

ANY oxygen level is either above or below one of these alarm levels, so the Eagle Tank Tester version will go into alarm when first turned on. To silence the alarm, press the RESET button. The audible alarm silences, but the alarm lights continue to flash and the display screen continues to indicate an oxygen alarm. If one of the alarm levels is newly exceeded, the audible alarm sounds again.

To eliminate an oxygen alarm that is not being used:

Either the increasing or decreasing oxygen alarm can be turned off in Setup mode (see “Updating the Alarm Point Settings” on page 32). Turning off the alarm clears the alarm lights and display of an unnecessary alarm.

Calibration

Use a hexane calibrating source to calibrate the combustible gas LEL range. Use a 100% nitrogen calibrating source to set the zero reading for the oxygen channel. RKI Instruments, Inc. recommends using the Single Calibration method to calibrate the Eagle Tank Tester model. See “Calibration” on page 38.

Parts List

Table 19 lists part numbers for replacement parts and accessories of the Eagle’s Tank Tester model.

Table 19: Parts List: Eagle Tank Tester Model

Part Numb er Description

80-0405RK Dilution fitting (1:1) 80-0802RK Float probe (12- foot)

Eagle Instruction Manual Appendix G: Eagle Tank Tester Model • 69

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Appendix H: Five-Gas an d Six-Gas Models

OY CO

0.9

0.0

L V P PPPMM

EOLL%

OY CO

0.9

0.0

L V P PPPMM

EOLL%

OY CO

0.9

0.0

L V P PPPMM

EOLL%

Overview

The standard Eagle gas monitor includes one to four channels and displays gas readings for all channels simultaneously. Some Eagle models include five or six channels; however, the Eagle is only capable of displaying gas readings for four of the channels at any one time.

Five- and six-gas Eagle models include up to four sensors in the standard sensor block. The additional sensor(s) are mounted in the front half of the instrument case and are wired to sockets EC3 (channel 5) and EC4 (channel 6) on the analog PCB.

NOTE: The data logging accessory is not available for the Eagle’s five- and six-gas

models.

Displaying Additional Channels

The normal screen displays a cursor (>) at the far left to indicate that additional channels can be displayed.

• A cursor to the left of the last channel displayed indicates that additional channels

are available after the currently displayed channels. Press the SHIFT/▼ button to display the remaining channels.

• A cursor to the left of the first channel displayed indicates that additional

channels are available before the currently displayed channels. Press the AIR/▲ button to display the remaining channels.

• Cursors to the left of the first and last channels displayed indicate that additional channels are available before and after the currently displayed channels. Press the AIR/▲ and SHIFT/▼ buttons to display the remaining channels.

70 • Appendix H: Five-G as and Six-Gas Models Eagle Instruction Manual

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Alarms

If the Eagle recognizes an alarm condition for a non-displayed channel, the cursor flashes and the standard audible and visual alarms initiate.

• If the alarm occurs for a channel before the top displayed channel, the cursor in the first line flashes. Press the AIR/▲ button to display the channel in alarm.

• If the alarm occu r s fo r a chan nel af ter t he bo tt om dis played c han ne l, the c u rsor in the last line flashes. Press the SHIFT/▼ button to display the channel in alarm.

Calibration, Display, and Setup Modes

For screens in these modes that display all active channels, a cursor displays:

• in the top line if channels are available before the top line. Press the AIR/▲ button to display the additional channel(s).

• in the bottom line if channels are available after the bottom line. Press the SHIFT/ ▼ button to display the additional channel(s).

• in the top and bottom lines if channels are available before the top line and after the bottom line. Press the AIR/▲ and SHIFT/▼ buttons to display the additional channels.

Eagle Instruction Manual Appendix H: Five-Gas and Six-Gas Models • 71

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Appendix I: Eagle Transformer Gas Tester Model

This Eagle Transformer Gas Tester Model is specially set up for electrical transformer gas testing. Large electrical transformers are filled with oil which surrounds the transformer coils, and they have an inert gas head space above the oil. When a transformer begins to fail, electrical arcing between the conductors of the coils can cause flammable gases to form in the head space. By testing the head space for these gases, and recording trends of the readings, an early warning of transformer failure can be determined, and the transformer can be removed from service before it explodes.

Description

This combustible sensor, which is a catalytic combustion type, is calibrated to and the instrument is setup for hydrogen with a range of 0 - 5.00% volume. Since the headspace being tested is filled with nitrogen, there is not oxygen in the test sample. The catalytic sensor requires oxygen in order to operate, so the instrument is supplied with a snap-on dilution fitting with a dilution ratio of 1:1 (one part air to one part sample). This fitting blends the sample with ambient air before entering the instrument, which provides sufficient oxygen for the sensor to work. The instrument is also supplied with a sample bag.

Operation

1. Turn the instrument on and allow it to warm up.

2. Attach the dilution fitting directly to the front of the instrument, and the plastic probe to the dilution fitting.

3. Press the “AIR” button in fresh air to zero the instrument.

4. Connect the deflated sample bag to the sample valve on the transformer, and open the valve slightly to fill the sample bag. Close off the sample bag and remove it from the transformer valve.

5. Attach the sample bag to the EAGLE probe, and open the sample bag. The sample will now be drawn into the instrument. After about 45 seconds note

and record the display reading. Compare this reading to historical data to determine the condition of the transformer.

NOTE: The Eagle can be calibrated either with or without the dilution fitting in

place. If calibrated without the dilution fitting in place, then display readings must be doubled to determine the actual gas concentration. If calibrated with the dilution fitting in place, then the sample bag must be used during calibration, and the display readings will be the actual gas concentrations.

CAUTION: If the dilution fitting is in place for calibration, do not use a demand flow

regulator. Use a sample bag. The use of a demand flow regulator with a dilution fitting when calibrating will result in an inaccurate calibration.

72 • Appendix I: Eagle Tra nsformer Gas Tester Mo del Eagle Instruction Manual

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Alarms

All the gas alarms on the Transformer Gas Tester are set to OFF.

Part List

Table 20: Parts List: Eagle Tank Tester Model

Part Numb er Description

80-0405RK Dilution fitting (1:1) 81-1126RK Sample bag, 9” x 12”, tedlar

Eagle Instruction Manual Appendix I: Eagle Transformer Gas Tester Mo del • 73

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Appendix J: Eagle Transformer Gas Tester Model TRB

The TRB Eagle is specially set up for electrical transformer gas testing. Large electrical transformers are filled with oil which surrounds the transformer coils and they have an inert gas head space above the oil. When a transformer begins to fail, electrical arcing between the coil conductors can cause flammable gases to form in the head space. By testing the head space for these gases and recording trends of the readings, an early warning o f transforme r failure can be detected and the transformer can be removed from service before an explosion occurs.

Table 21: TRB Eagle Specifications

Target Gas Range Alarm 1 Alarm 2

Hydrogen 0 to 5% volume* OFF OFF N/A N/A Oxygen** 0 to 40% volume OFF OFF N/A N/A * If the reading is displayed in ppm, the range is 0 - 50,000 ppm.

** Oxygen is an optional target gas.

TWA

Alarm

STEL

Alarm

Description

The TRB Eagle can have either an LEL channel only or an LEL channel and an oxygen channel. The LEL channel is setup for 0 - 5% volume hydrogen as standard but can be setup for any combustible gas.

This TRB Eagle utilizes a catalytic combustion sensor which requires oxygen to be present in the sample to work properly. Since the head space being tested is filled with nitrogen, there is no oxygen in the test sample. The instrument is equipped with an internal dilution fitting that blends the sample with 50% air before it reaches the combustible sensor, providing sufficient oxygen for the sensor to work properly.

This instrument is designed to draw from a head space that is either at a slight positive pressure or slight vacuum relative to atmosphere. It is equipped with two pumps: one to draw the sample from the head space and one to route the sample to the sensor(s). It is also equipped with a special hose barb inlet fitting for 1/4” I.D. flexible tubing and does not include a hose or probe.

Operation

1. Turn the instrument on and allow it to warm up.

2. Press the AIR button while in a fresh air environment to zero the instrument.

3. Connect the sample tubing to the TRB Eagle inlet fitting.

4. Connect the sample tubing to the sample source.

5. Allow the instrument to draw sample for 1 minute. Note and record the display reading. Compare this reading to historical data to determine the condition of the transformer.

74 • Appendix J: Eag le Transformer Gas T ester Model TRB Eagle Instruction Manual

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Calibration

Because of the internal construction of the TRB Eagle, it is not necessary to use a gas bag to calibrate the unit. A demand flow regulator may be used to calibrate it. Follow the instructions in “Calibration” on page 38 to calibrate the unit.

Alarms

All of the gas alarms on the TRB Eagle are set to OFF.

Parts List

Table 22: Parts List for TRB Eagle

Part Number Description

81-1054RK Regulator, demand-flow type, for all gases 81-0154RK-H2S is not

appropriate for in 58- and 103-liter calibration cylinders (cylinders with internal threads)

81-1054RK-H2S Regulator, demand-flow type, for CO, CO

, SO2, zero air, and LEL combustible gases in 34-liter aluminum,

SiH

58-liter, and 103-liter calibration cylinders (cylinders with internal threads)

81-1055RK Regulator, demand flow, for all gases in 17 liter and 34 liter steel

calibration cylinders (cylinders with internal threads)

, H2S, N2, NO, NO2, PH3,

Eagle Instruction Manual Appendix J: Eagle Transformer Gas Tester Model TRB • 75

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RKI Instruments 72-5276RK, 72-5287RK, 72-5101RK, 72-5116RK, 72-5296RK User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Warranty

Table of Contents

Introduction

Overview

About this Manual

Specifications

Description

Case

Control Panel

Buttons

Alarm Lights

Battery Charger Connector

Interface Port

Buzzer

Sample-Drawing System

Hose and Probe

Sensors

Circuit Boards

Methane Elimination Switch

CAL/SETUP Switch

Operation

Starting Up the Eagle

Normal Operation

Monitoring Combustible Gas in the PPM Range

Monitoring Combustible Gases Other than Methane

Setting User Access

Turning Off the Eagle

Alarms

Alarm Indications

Resetting Gas Alarms

Display Mode

Entering Display Mode

User and Station ID Screen

Peak Screen

Elapsed Time Screen

TWA/STEL Screen

Battery Voltage Screen

Setup Mode

Tips for Using Setup Mode

Entering Setup Mode

Updating the Battery Type Setting

Updating Channel Settings

Updating Combustible Gas Channel Units of Measure

Updating the Alarm Point Settings

Updating the Eagle’s Serial Number

Updating the Lunch Break Setting

Updating the Alarm Latching Setting

Updating the Alarm Silence Setting

Turning the User ID Function On or Off

Updating the Auto Calibration Settings

Updating the Back Light Setting

Turning the Auto Fresh Air Function On or Off

Updating the Zero Follow Settings

Updating the Confirmation Beep Setting

Returning to Default Settings

Calibration

Calibration Supplies and Equipment

Preparing for Calibration

Calibrating the Eagle

Maintenance

Displaying the Battery Voltage

Replacing Alkaline Batteries

Recharging Ni-Cd Batteries

Replacing Sensors

Appendix A: Parts List

Appendix B: Methane Elimination

Setting up for Methane Elimination Mode

Operating with Methane Response Off

Returning to Methane Response Mode

Monitoring Combustible Gases Other Than Hexane

Appendix C: Non-Standard Toxic Gas Sensors

Specifications

Hose and Probe

Description

Keeping Fresh Batteries in a Non-Standard Toxic Eagle

Calibrating Non-Standard Toxic Gas Sensors