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TABLE OF CONTENTS

SPECIFICATIONS

FEATURES

PART 1. OPERATION

The Gas-Ranger Detectors ......................................................................................

Operation .................................................................................................................

Instrument Checks...................................................................................................

Interference from Other Gases, Liquids, or RFI .....................................................

Change of Batteries .................................................................................................

Troubleshooting ......................................................................................................

Probes ......................................................................................................................

Routine Maintenance ..............................................................................................

PART 2. CALIBRATION AND ALARM LEVEL SELECTION

Automatic Calibration with A-CAL

...................................................................

10. Alarm Level Selection ............................................................................................

11. Manual Calibration, Sensor Replacement, Pump Adjustment ................................

APPENDIX I

Set Up and Purge of the Calibration Gas Dispenser .............................

APPENDIX II Set Up of the Manual Calibration Apparatus ........................................

ACCESSORIES AND SPARE PARTS ..........................................................................

Содержание OM-1108

Страница 1: ...BASCOM TURNER INSTRUMENTS GAS RANGER DETECTORS OPERATION MANUAL NATURAL GAS CARBON MONOXIDE OXYGEN AND HYDROGEN SULFIDE DETECTORS Part Number OM 1108...

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Страница 3: ...charge A return merchandise authorization RMA number must be obtained prior to returning a detector to Bascom Turner A detector returned to Bascom Turner with probe and water block filter shipping pre...

Страница 4: ......

Страница 5: ...ries 10 6 Troubleshooting 11 7 Probes 12 8 Routine Maintenance 13 PART 2 CALIBRATION AND ALARM LEVEL SELECTION 9 Automatic Calibration with A CALTM 15 10 Alarm Level Selection 18 11 Manual Calibration...

Страница 6: ...gh speed pump automatically samples ambient air or flue gas No need to purge on changing operating mode or scale Automatic Self Tests Automatic checks of battery sensors and pump Tests for blockage an...

Страница 7: ...EL scale 2 GAS for GAS scale 5 of reading 10 ppm for PPM CO scale 10 from 1000 ppm to 5000 ppm 5 of reading 10 ppm for PPM H2S scale 5 of reading for oxygen Warm Up Time 30 seconds Operating Temperatu...

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Страница 9: ...models detect natural gas and may be used to test ambient air for natural gas bar hole and track gas leaks in pipes and other conduits All models which detect carbon monoxide CO may be used to test f...

Страница 10: ...om time to time examine the water block filter on the hose If loose dirt has accumulated shake it out Do not poke at the filter with a tool or any other implement which may puncture it If the filter i...

Страница 11: ...hows GAS for about 15 seconds After warm up the display shows the concentration of natural gas in air in percent by volume GAS If the air is clean contains no gas the display should read zero If it do...

Страница 12: ...splay shows SniF sniff for about 25 seconds After warm up the display shows the concentration of gas in air in LEL with the RGI 201 RGC 301 RGO 321 RGA 411 and RGA 611 and GAS with the RGI 211 RGC 311...

Страница 13: ...ete display shows End return the switch to the PPM CO position Carbon Monoxide in Flue Gas Connect the flue gas probe with an attached flue gas filter to the water block filter on the hose and turn se...

Страница 14: ...play spans the range 0 to 40 0 with a resolution of 0 1 Air free CO Flue Measurements The RGA 411 412 and RGA 611 612 detectors can display measurements of CO on an air free basis if this feature is s...

Страница 15: ...M If an atmosphere contains both CO and H2S the detector will selectively display the concentration of CO on the PPM CO scale and the concentration of H2S on the PPM H2S scale The CO sensor in these d...

Страница 16: ...s the AUTO ZERO mode is entered by switching from the Oxygen position to the PPM H2S position while holding down the RESET button Display Automatic Operation Air O2 The oxygen sensor if present is adj...

Страница 17: ...mples are hydrogen helium carbon dioxide other hydrocarbons Gases or vapors which may interfere with carbon monoxide detection include substances which can be electrochemically oxidized or reduced on...

Страница 18: ...Unscrew the battery cap and slide out two D cells b Discard two alkaline D cells 3 Insert two fresh D size alkaline batteries 4 Replace the battery cap and give it one quarter turn battery cap bar ver...

Страница 19: ...ck filter drain probe and dry probe and filter by shaking There is water in the probe Detach probe from water block filter drain probe and dry probe and filter by shaking Limit set incorrectly See Sec...

Страница 20: ...without touching the metal while it is in the flue and immediately afterwards Running the instrument in air after a measurement will help cool the probe quickly and dry the filters Bar Hole Probes Th...

Страница 21: ...t a dust and water block filter Do not use a dust and water block filter with a puncture Inlet Dust Filter Removal of the intake connector used to attach the sampling hose of the detector exposes a me...

Страница 22: ...rbs gasoline and other heavy hydrocarbons for example propane or butane which interfere with methane detection In order to keep the filter material from adsorbing hydrocarbons prior to use the filter...

Страница 23: ...ns with the A CAL firmware always calibrate the catalytic combustion and CO sensors first that is use the Bascom Turner methane and CO calibration gas first Then if necessary recalibrate the thermal c...

Страница 24: ...s before the AUTO ZERO routine is repeated 2 After End appears on the display and the instrument beeps block the probe tip manually until bloc appears on the display Now release the block The display...

Страница 25: ...libration If this result is obtained the monitor must be calibrated manually FYI It is possible for a monitor to be manually calibrated and yet not calibrate with A CAL This indicates a sensor sensiti...

Страница 26: ...e basis and the block limit for the pump may be adjusted by using the push button and the RESET switch on the front panel The oxygen alarm limits are always ON at the factory set levels To turn an ala...

Страница 27: ...bar hole gas sampling is set to seconds as shown The timer is set OFF Used to set sampling time prior to the display of peak and sustained readings on GAS scale 19 LEL followed by a number or by OFF...

Страница 28: ...per on the TRACK GAS Scale Set selector switch to AUTO ZERO and press the push button Press Display Followed By BEEP ON RESET OFF Push button BEEP OFF Exit by placing the front panel switch to a posit...

Страница 29: ...tton 0200 Underlined digit is flashing Push button 0200 Underlined digit is flashing RESET 0000 Continue pressing the RESET switch until 0 appears at the second digit Push button 0000 RESET 0030 Conti...

Страница 30: ...trument in the field are described separately below A Manual Calibration If the sensitivity of a sensor has drifted too far to be automatically adjusted nogo will appear during auto calibration The se...

Страница 31: ...or set automatically by SCAL GAS 2 followed by a number In Calibration Gas GAS For manual calibration Sect 11A GAS 1 followed by a number In Pure Methane GAS For manual calibration Sect 11A 23 o C 3 f...

Страница 32: ...ard Push directly down to secure the sensor to the board 4 Place the top cover back on the base aligning the two brass power connections over their receptacles and re attach the cover to the base usin...

Страница 33: ...eturn the monitor to a normal operating mode CAUTION SCAL calibration presupposes and depends on using Bascom Turner s calibration gas Part No MC 620 Do not use a gas of a different composition for au...

Страница 34: ...gas valve The display should stop flashing bGAS nogo and display bGAS with the pump off for 5 minutes 4 When the detector beeps and displays End turn the boost gas tank valve off and disconnect from...

Страница 35: ...and note the reading on the display following Pu see Table 2 It represents in arbitrary units the current to the pump When the probe is blocked a reading with a decimal point for example 350 0 should...

Страница 36: ...28...

Страница 37: ...iption Part Number Calibration gas dispenser Methane CO calibration gas Flow regulator CGD 001 MC 620 FR 302 SAFETY PRECAUTIONS For your safety please read these instructions carefully To operate the...

Страница 38: ...d observe 5 to 10 inches of water column pressure on the gas dispenser s gauge 2 Leaving the regulator s valve open insert the tip of the detector s extended standard probe as far as it will go into t...

Страница 39: ...Figure 5 Manual calibration apparatus Part No PCA 302 Above drawing is symbolic SAFETY PRECAUTIONS For your safety please read these instructions carefully To operate the flow regulator on a compresse...

Страница 40: ...connection nut counter clockwise 5 Verify that the regulator s valve is closed 6 Observe the inlet supply pressure gauge which will verify cylinder pressure 7 Connect the 3 16 ID tubing with a thread...

Страница 41: ...sors Methane Sensor in flame arrestor MS 302 Carbon Monoxide Sensor CO 301 Carbon Monoxide Sensor for RGA 611 RGA 612 CO 302 Hydrogen Sulfide Sensor for RGA 611 RGA 612 HS 301 Oxygen Sensor OS 301 4 R...

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