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RKI Instruments 71-0288RK Instruction Manual

Portable multi-gas detector
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Instruction Manual
Inert Gas Testing Eagle
with Two Pumps
Portable Multi-Gas Detector
Part Number: 71-0288RK
Revision: P2
Released: 11/12/13
www.rkiinstruments.com

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  • Page 1 Instruction Manual Inert Gas Testing Eagle with Two Pumps Portable Multi-Gas Detector Part Number: 71-0288RK Revision: P2 Released: 11/12/13 www.rkiinstruments.com...
  • Page 2 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.
  • Page 3 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...

  • Page 4: Table Of Contents

    Table of Contents Introduction ..........1 Overview .
  • Page 5 Display Mode ......... . 20 User and Station ID Screen .
  • Page 6 Calibration ..........42 Calibration Supplies and Equipment .

  • Page 7: Introduction

    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 innovations 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 hydrogen sulfide.

  • Page 8: About This Manual

    About this Manual This manual is intended for use with the Eagle. Examples used in this manual are for a standard four-gas model (combustible gas, oxygen, carbon monoxide, and hydrogen sulfide). This manual is organized as follows: • The standard sections included in pages 1 through 54 describe the Eagle’s specifications and internal and external components.

  • Page 9: Specifications

    Specifications Table 1 lists physical and environmental specifications for the Eagle. Table 2 lists specifications for the Eagle’s sensors. Table 1: Eagle Specifications Combustible gas; Oxygen (O Target Gases Carbon monoxide (CO); Hydrogen sulfide (H Case High-impact polycarbonate-polyester blend Dimensions 10.5 in.
  • Page 10 Table 2 lists specifications for the Eagle’s sensors. Your Eagle model may not include all of the sensors listed below. The alarm settings are user-adjustable (see “Updating the Alarm Point Settings” on page 33). Table 2: Standard Sensor Specifications Combustible Combustible Hydrogen Carbon...

  • Page 11: Description

    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.

  • Page 12: Alarm Lights

    The CO sensor is installed separately from the sensor block. With proper setup, the system can draw a sample flow from up to 125 feet away from the Eagle. Consult RKI Instruments, Inc. for sample flow distances longer than 125 feet.

  • Page 13: Hose And Probe

    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 RKI Instruments, Inc. for hose lengths longer than 125 feet. The standard probe includes a replaceable particle filter and hydrophobic filter disk that prevent particulates and water from entering the Eagle’s flow system.
  • Page 14 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).

  • Page 15: Circuit Boards

    ZERO and SPAN controls. A bracket secures the sensor/amplifier assembly to the instrument case. A flow adapter connected to the sensor allows the sample to flow through the H compensated CO sensor. A seven-position connector plugs into the EC4 (channel 4) socket on the analog PCB.

  • Page 16: Operation

    Operation 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.
  • Page 17 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. NOTE: The following screen only displays if the data logging option is installed. If the data logging option is not installed, the Self Diagnosis screen displays after the Battery Voltage screen.

  • Page 18: Normal Operation

    4. 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”...
  • Page 19 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.

  • Page 20: Setting User Access

    Setting User Access The CAL/SETUP switch controls the Eagle functions available to the user. The switch setting does not affect the Eagle’s ability to display gas readings and indicate gas and malfunction alarms. 1. Turn off the Eagle. 2. Unscrew the two large screws on the top of the case. 3.

  • Page 21: Alarms

    Alarms 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, “Standard Sensor Specifications”...
  • Page 22 STEL Alarm (Toxics Only) If a toxic gas channel’s average gas reading for the past 15 minutes exceeds the STEL alarm setting: 2 0 . 9 S T E • STEL displays in the alarm field for that channel. • The channel’s display line flashes. •...
  • Page 23 Low Flow Alarm If the Eagle’s sample system becomes restricted or blocked (for example plugged probe, fouled filter, pinched tubing): A I L L O W L O W L E V • The message FAIL LOW FLOW LEVEL replaces the normal screen. •...
  • Page 24 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: F A I L S E N S O R <...

  • Page 25: Resetting Gas Alarms

    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 35). 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 self-resetting alarms.

  • Page 26: Display Mode

    Display Mode The Eagle has four operating modes: normal operating mode, display mode, setup mode, and calibration mode. With the Eagle in display mode, you can: • set user and station IDs • display peak readings • display elapsed time •...

  • Page 27: Peak Screen

    To enter a user and station ID: To scroll to the next screen at any time, press the DISP/ADJ button. 1. Press the POWER/ENTER button. The first character under USER ID flashes (* is default). 2. Press the AIR/ and SHIFT/ buttons to scroll through the available characters.

  • Page 28: Twa/Stel Screen

    TWA/STEL Screen The TWA/STEL screen displays the time-weighted average (TWA) and the short-term 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.

  • Page 29: Clear Data Logger Screens

    Clear Data Logger Screens CAUTION: Once you clear the data logger, you cannot retrieve any data previously stored in the data logger. The Clear Data Logger screens allow you to clear the data logger storage to accept new data. (Press the DISP/ADJ button to go to the Remaining Log Time screen).

  • Page 30: Setup Mode

    Setup Mode NOTE: The screens illustrated in this section are examples only. The screens displayed by your Eagle model may be slightly different. The Eagle has four operating modes: normal operating mode, display mode, setup mode, and calibration mode. This section describes the setup mode.

  • Page 31: Entering Setup Mode

    • To exit setup mode, from the main menu place the prompt next to the last menu option, START MEASUREMENT, then press the POWER/ENTER button. The Eagle begins its normal start-up sequence. Entering Setup Mode WARNING: The Eagle does not detect gas or display readings while in setup mode.

  • Page 32: Updating Channel Settings

    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.
  • Page 33 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 •...
  • Page 34 setting. The fullscale setting flashes. 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 enter the setting.
  • Page 35 Updating Oxygen Channel Settings 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. >...
  • Page 36 Updating the Display Increment Setting 1. Press the SHIFT/ button to place the prompt in 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%. 2. Press the AIR/ or SHIFT/ button to display the desired display increment setting, then press the POWER/ENTER button to enter the setting.
  • Page 37 5. Press the AIR/ or SHIFT/ buttons to display 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 enter the new target gas label. If you entered a label other than ***, continue with step 7.

  • Page 38: Updating The Combustible Gas Channel's Units Of Measure

    Updating the Display Increment Setting 1. Press the SHIFT/ button to place the prompt in 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.

  • Page 39: Updating The Alarm Point Settings

    Updating the Alarm Point Settings 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 (the reading at which the Eagle recognizes the alarm).

  • Page 40: Updating The Eagle's Serial Number

    7. To exit the Set Alarm Points menu, press the SHIFT/ button until the prompt is next to Channel 4, then press the SHIFT/ button again. The ESCAPE message displays. (Press the AIR/ button if you want to return to the Set Alarm Points menu. 8.

  • Page 41: Updating The Alarm Latching Setting

    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 Alarm Latching Setting With Alarm Latching ON, the Eagle remains in alarm condition until the alarm condition passes and the RESET/SILENCE is pressed.

  • Page 42: Turning The User Id Function On Or Off

    Turning the User ID Function On or Off With User ID Input 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 20).

  • Page 43: Updating The Back Light Setting

    2. Press and hold the SHIFT/ button, then press the DISP/ADJ button. The Auto Calibration screen for the combustible gas channel displays. B R A T I O N < C H > 3. Press the AIR/ or SHIFT/ button to display the desired setting.

  • Page 44: Updating The Interval Time Setting (Data Log Option)

    With Auto Fresh Air Adjust ON, the Eagle automatically sets the fresh air reading for all channels during the start-up sequence. With Auto Fresh Air Adjust OFF (default), you must press the AIR/ button to set the fresh air reading for all channels. 1.

  • Page 45: Updating The Time Calibration Setting (Data Log Option)

    1. From the main menu, select the LOG DATA OVER WRITE menu option. O V E R W R I 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.

  • Page 46: Updating The Zero Follow Settings

    4. Repeat steps 2 and 3 to enter the day, year, hours, and minutes settings. The main menu displays after you enter the minutes setting. Updating the Zero Follow Settings The Zero Follow setting is not intended for customer setup. The default setting for most target gases is ON.
  • Page 47 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. Y E S L A Y 3. Press the AIR/ button to reset all parameters to their default settings.

  • Page 48: Calibration

    Calibration Calibrate the Eagle when you replace a sensor. Also calibrate the Eagle periodically to assure proper sensor response. You can program the Eagle to notify you when it is due for calibration (see “Updating the Time Calibration Setting” on page 39). The frequency of calibration depends upon the amount and type of use.

  • Page 49: Calibrating The Eagle

    3. Press and hold the AIR/ button until a tone sounds. The Eagle automatically sets the combustible gas and toxics circuits to zero and the oxygen circuit to 20.9%. 4. Screw the regulator to the calibration cylinder. 5. Connect the calibration tubing to the regulator. Calibrating the Eagle Press and hold the SHIFT/ button, then press the DISP/ADJ button.
  • Page 50 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.
  • Page 51 and return to the Calibration menu. If the combustible gas, O , or S sensor failed, replace the failed sensor(s), then repeat calibration. If the CO sensor failed, see “Adjusting the CO Sensor Controls” on page 47. 10. AUTO CALIBRATION END displays, then the Calibration menu displays.
  • Page 52 4. Press the POWER/ENTER button. The Single Calibration screen displays for the channel you selected. The gas reading flashes. B R A T I O N A P P L Y G A S / A D J / E N 5.
  • Page 53 Adjusting the CO 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. Enter SINGLE CALIBRATION, select the CO channel, and press the POWER/ENTER button to display the CO reading. 2.

  • Page 54: Maintenance

    NOTE: If the CO 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. Maintenance Displaying the Battery Voltage Check the battery voltage periodically.

  • Page 55: Replacing The Probe's Particle Filter And Hydrophobic Filter Disk

    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.

  • Page 56: Replacing Sensors

    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. 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.
  • Page 57 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.
  • Page 58 4. Unplug the cable leading from the oxygen sensor at the large multi-pin connector. 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.
  • Page 59 • The CO channel cannot be calibrated correctly. • The CO reading cannot be set to 0 by the Demand Zero command. NOTE: RKI Instruments, Inc. recommends that you return the Eagle for replacement of the H compensated CO sensor. The following procedure is provided to allow you to replace the sensor if necessary.
  • Page 60 sensor pins. 10. Install the replacement sensor in reverse order. 11. Set the NULL potentiometer as described below. NOTE: Allow the instrument to run for 15 minutes before continuing with these instructions. 12. Calibrate the sensor. Setting the NULL Potentiometer When an old CO sensor is replaced, the NULL potentiometer must be adjusted so that the CO amplifier’s hydrogen compensation will work properly with the new sensor.

  • Page 61: Appendix A: Parts List

    Appendix A: Parts List Table 6 lists part numbers for the Eagle’s replacement parts and accessories. Table 6: Parts List 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...
  • Page 62 Sensor, oxygen 65-2009RK Sensor, hydrogen compensated carbon monoxide 65-2035RK Sensor, hydrogen sulfide 71-0288RK Inert Gas Testing Eagle with Two Pumps Instruction Manual 80-0131RK-10 Probe, 10-inch hydrophobic (standard probe) 80-05XXRK Sample hose. Replace “XX” with length in feet. 5 foot hose is standard.

  • Page 63: Appendix B: Methane Elimination

    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 this type of detection, the combustible gas channel must be programmed to display HEX or *** (see “Updating Channel Settings”...

  • Page 64: Monitoring Combustible Gases Other Than Hexane

    2. Allow 2 minutes for the combustibles sensor to stabilize. 3. Perform the demand zero procedure as described in “Preparing for Calibration” on page 42. Monitoring Combustible Gases Other Than Hexane Use Table 7 to determine the concentration of combustible gases other than hexane.
  • Page 65 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).

  • Page 66: Appendix C: Installing The Data Logger Board

    The data logging feature is an optional accessory. NOTE: Although the data logger board may be installed in the field, RKI Instruments, Inc. recommends that you return the Eagle to the factory for data logger board installation. 1. Take the Eagle to a non-hazardous location, and turn the power off.

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