Cal Flame FM-204 Operator's Manual Page 19
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EAGLE 2 Operator’s Manual Instrument Description • 9
Oxygen Sensor
The O
2
sensor is a galvanic type of sensor. A membrane behind the openings
on the sensor face allows gas to diffuse into the sensor at a rate proportional
to the partial pressure of oxygen. The oxygen reacts in the sensor and
produces a voltage proportional to the concentration of oxygen. The voltage
is measured by the EAGLE 2’s circuitry, converted to a measurement of gas
concentration, and displayed on the LCD.
The sensor includes a short cable that terminates in a round 7-position
connector. It mates with the OXY pins on the main PCB (see “Main PCB” on
page 12).
CO and H
2
S Sensors
The CO and H
2
S sensors are electrochemical sensors that consist of three
precious metal electrodes in a dilute acid electrolyte. A gas permeable
membrane covers the sensor face and allows gas to diffuse into the
electrolyte. The gas reacts in the sensor and produces a current proportional
to the concentration of the target gas. The current is amplified by the EAGLE
2’s circuitry, converted to a measurement of gas concentration, and displayed
on the LCD.
The CO and H
2
S sensors are physically very similar. Except for their
markings and wire colors, they look almost identical. A three-position
connector at the end of a 2-wire cable from each sensor plugs into a socket on
the main PCB. The sockets on the main PCB for the CO and H
2
S sensors are
labeled CO and H2S. Normally, the CO connector plugs into the CO socket
and the H2S plugs into the H2S socket. However, because of the way that the
main PCB circuitry is arranged, if the CO sensor is plugged into the H2S
socket and the H2S sensor is plugged into the CO socket, the sensors will still
operate properly and the CO and H2S readings will still appear on the
channels that are programmed for those gases.
LCD
A digital LCD (liquid crystal display) is visible through a clear plastic
window in the top case. The LCD simultaneously shows the gas reading for
all installed sensors. The LCD also shows information for each of the
EAGLE 2’s operating modes.
- Operator’s Manual 1
- EAGLE 2 Operator’s Manual 2
- Table of Contents 3
- Overview 11
- About the EAGLE 2 11
- Chapter 1: Introduction 11
- Specifications 13
- About this Manual 14
- Chapter 2: Description 16
- Instrument Description 16
- Oxygen Sensor 19
- CO and H 19
- S Sensors 19
- Control Buttons 20
- Main PCB 21
- Display PCB 21
- I.S. Barrier PCB (not visble) 21
- Alarm LEDs 22
- Infrared Communications Port 22
- Battery Case & Batteries 23
- Flow System 24
- Standard Accessories 25
- Sample Hose 26
- Rechargeable Ni-MH Batteries 27
- Battery Chargers 27
- Optional Probes 28
- Figure 12: Barhole Probe 29
- 1:1 Dilution Fitting 31
- 3:1 Dilution Fitting 31
- Chapter 3: Operation 32
- OXY 20.9vol% 37
- Continuous Operation 38
- Measuring Mode, Normal 39
- Operation 39
- Using Exhaust Tubing 41
- Combustible Gas Detection 41
- Measuring Mode, Alarms 45
- Alarm Indications 46
- Low Flow 47
- Low Battery Warning 47
- Dead Battery Alarm 47
- Sensor Failure 47
- Responding to Alarms 48
- Responding to Battery Alarms 49
- Display Mode 50
- Peak Screen 51
- Battery Voltage Screen 52
- Gas Display Screen 52
- STEL Screen 56
- TWA Screen 56
- View Alarm Settings Screen 56
- Select User ID Screen 58
- Select Station ID Screen 60
- OPERATION 61
- Date/Time Screen 62
- Data Logging Screen 62
- Data Logging 63
- Interval 64
- Data Logging Time 64
- Chapter 4: Calibration Mode 65
- Calibration Supplies and 66
- Equipment 66
- Calibrating Using the Auto 68
- Chapter 5: Maintenance 80
- Troubleshooting 80
- B OXY 20.9vol% 82
- T 82
- ON OFF CHARGING 85
- ON ON READY/FULL 85
- BLINKING OFF FAIL 85
- OFF ON CONTINUOUS 85
- Charcoal Filter 89
- Checking the Combustible Gas 90
- Sensor’s Condition 90
- Replacing a Sensor 90
- Figure 22: Replacing a Sensor 91
- General Parts List 94
- Calibration Cylinder 96
- Regulator 96
- Hose Clamp 96
- Calibration Tubing 96
- Entering Calibration Mode 97
- Calibrating Using the Single 104
- Calibration Method 104
- SELECT SENSOR 109
- TO CALIBRATE 109
- >ESCAPE 109
- CH4 OXY 109
- H2S CO 109
- Parts List 110
- Appendix B: Setup Mode 111
- Tips for Using Setup Mode 112
- GAS MONITOR 113
- EAGLE 2 S 113
- Setting the Date and Time 114
- Setting the Date Format 114
- Setting the Battery Type 115
- Configuring the Channels 115
- CAT(0-50000ppm CH4) 122
- SETTING EV 122
- UP/DOWN THEN ENTER 122
- USER AND 128
- STATION ID’S 128
- FRESH AIR ADJUST 130
- ON POWERUP 130
- CALIBRATION 133
- REMINDER 133
- Updating LC/BH Mode Setting 134
- CONFIRMATION ALERT 136
- RESTORE DEFAULT 138
- CONFIGURATION? 138
- Updating the Language Setting 140
- SAVE ALL CHANGES 141
- IN MEMORY? 141
- ARE YOU SURE YOU 141
- WANT TO SAVE ALL 141
- CHANGES IN MEMORY? 141
- SUB2 SUB1SUB3 142
- Sub PCB Positions 142
- CONFIGURE CHANNELS 143
- > CH1: CAT (CH4) 143
- CH2: OXY (OXY) 143
- CH3: H2S (H2S) 143
- CH4: OP1 (PID) 143
- Sub PCBs and CONFIGURE GASES 144
- ESM & IR SENSOR 145
- ARE AUTOMATICALLY 145
- DETECTED 145
- MANUAL SELECTION 145
- IS NOT POSSIBLE 145
- Appendix D: PID Sensors 146
- Description 146
- PID Sub PCB 147
- PID Probe 147
- Start Up and Normal Operation 148
- IBL 0.00ppm 149
- 149
- RELATIVE RESPONSE 150
- TO CALIBRATED GAS 150
- FOR PID SENSOR 150
- PID Calibration 153
- Maintenance 170
- Lamp Window 172
- Figure 31: Using Removal Tool 176
- Replacing the Electrode Stack 178
- Figure 33: Using Removal Tool 179
- Replacing the PID Sensor 181
- EAGLE 2 S 182
- 2000 ppm IBL 185
- ESM-01 Sensor 190
- ESM-01 Calibration 191
- CALIBRATION MODE 192
- > AUTO CALIBRATION 192
- SINGLE CALIBRATION 192
- PERFORM AIR ADJUST 192
- NORMAL OPERATION 192
- Replacing the H 210
- S Scrubber in the SO 210
- and HCN Sensors 210
- Part Number Description 213
- Appendix F: TC Sensors 214
- TC Sensor 215
- TC Sub PCB 215
- Catalytic (LEL) Sensor Screen 216
- * * * WARNING * * * 217
- NO LEL ALARMS IF 217
- CAT (LEL) IS DISABLED 217
- CAT (LEL) SENSOR 217
- Infrared CO 234
- Infrared Sub PCB 234
- End Caps 235
- 0-5 %vol 0.04 %vol 236
- 0-10,000 ppm 400 ppm 236
- 0-60 %vol 0.0 %vol 236
- Calibration 237
- 228 • Infrared CO 238
- Calibration • 229 239
- 230 • Infrared CO 240
- Calibration • 231 241
- 232 • Infrared CO 242
- Calibration • 233 243
- Table 24: IR CO 244
- Sensor Calibration Times 244
- Calibration • 235 245
- Infrared Hydrocarbon Sensor 263
- METHANE ELIMINATION 276
- DISABLED 276
- Calibration 279
- Start Up, Bar Hole Mode 280
- BAR HOLE MODE 285
- CH4 0 %LEL 285
- OXY 20.9 vol% 285
- ENTER: MEASURE 285
- ADJUST: PURGE 285
- Bar Hole Testing 286
- Start Up, Leak Check Mode 289
- LEAK CHECK MODE 294
- CH4 0 ppm 294
- Locating a Leak 295
- Appendix M: Tank Tester Model 297
- CONNECT FLOAT PROBE 299
- Start Up 306
- MODE SELECT 308
- NORMAL MODE 308
- Warranty 309
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