Bascom_turner GAS-ROVER VGI-201 Скачать руководство пользователя страница 30

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Figure 4.

Gas-Rover with top of case and main circuit board removed.

CAUTION:

After replacing a methane or a CO sensor, perform the New Filament procedure

(described under Part 2, Setup and Calibration) and then completely calibrate
the instrument (both with 2.5% and 100% gas).

Содержание GAS-ROVER VGI-201

Страница 1: ...BASCOM TURNER INSTRUMENTS GAS ROVER DETECTORS OPERATION MANUAL NATURAL GAS CARBON MONOXIDE AND OXYGEN DETECTORS Part Number OM 0717...

Страница 2: ...s must be trained to recognize instrument malfunctions and to have such instruments repaired promptly Bascom Turner offers no warranty that failures will not occur only that when they occur they will...

Страница 3: ...s Liquids or RFI 9 6 Change of Batteries 10 7 Probes 11 8 Routine Maintenance 12 Appendix 1 Main Key Functions 14 Appendix 2 The Gas Rover in Mobile Surveys 14 PART 2 SETUP AND CALIBRATION 1 Setup 15...

Страница 4: ...after gas is pumped for a precise fixed time Automatic Data Storage Automatic storage of time and mode stamped data readings Automatic storage the last 24 calibrations Automatic generation of reports...

Страница 5: ...Time 60 seconds Response Time CH4 0 6 seconds Survey 2 seconds Monitor CO 45 seconds O2 60 seconds Operating Temp 20o C to 40o C 0o F to 105o F Storage Temperature 40o C to 60o C 40o F to 140o F Data...

Страница 6: ...pes and other conduits All models which detect carbon monoxide CO may be used to test for CO in ambient air flue gas and gases given off by appliances A detector alerts the user acoustically and visua...

Страница 7: ...ion without this filter will eventually degrade the sensors and the pump It also voids the limited warranty It is essential that the filter be replaced monthly or sooner if it turns brown Operation wi...

Страница 8: ...nt gas refer only to the calibration gas and can be relied upon only in this respect in assessing an atmosphere sampled by the detector Furthermore concentrations displayed by the detector refer to a...

Страница 9: ...g off of power The next display suggests a Calibrate by a date thirty days from the date of the last calibration and an opportunity to calibrate see Part 2 Calibration If calibration is not chosen the...

Страница 10: ...shows the concentration of gas in air in parts per million by volume ppm The beeper will sound if the ambient concentration of gas rises above a user selected value see Part 2 Section 1 The factory se...

Страница 11: ...the front panel to Bar Hole BH The instrument automatically clears any residual gas and checks for clean air The pump is then turned off and the instrument is ready for bar holing After inserting the...

Страница 12: ...ert the probe into the flue and read the concentration of CO in parts per million A flue gas check of CO should take one minute or less For every minute of flue gas sampling allow the detector a minut...

Страница 13: ...tomatic Sensor Check If a gas sensor fails opens up the display shows Replace Methane Sensor Automatic Pump Check If the intake is blocked the display shows Flow Blocked and the detector beeps until t...

Страница 14: ...on monoxide Models VGO 321 and VGO 322 methane and oxygen detectors use the methane sensors listed above and iv A two electrode electrochemical cell for oxygen Gases or liquids with appreciable vapor...

Страница 15: ...rms and the display flashes Low Batteries between readings If battery life is over the unit displays Low Batteries and powers down the batteries must be changed to make the instrument operational agai...

Страница 16: ...fitting Flue Gas Probe The flue gas probe Part No FP 110 is a telescoping metal probe screwed finger tight into the flue gas filter The other end of the filter attaches to the dust and water block fi...

Страница 17: ...block filters as they will not block water or remove very fine dust and dirt If this filter gets blocked it should be replaced Water stopper The water stopper Figure 2 provides a quick way to continue...

Страница 18: ...th fresh filter material up to the bottom of threads place the plastic retainer disk flat on top and screw the top finger tight Check the seal by carrying out a block test with the detector Heavy Hydr...

Страница 19: ...urvey kit Part No MP 001 which can be installed in about 4 hours MODIFICATIONS OF EXISTING SAMPLING SYSTEMS The two chain and funnel assemblies that run from the front bumper should be about four feet...

Страница 20: ...ted with the right Update button When a flashing parameter is OK press the left Next button to either advance to the next digit or to leave the Edit screen and display the edited parameter Alarm Limit...

Страница 21: ...Typically the pump current rises by about 15 ma when a hose and probe are attached The Pump Noise test follows when the Exit key is pressed Pump Noise is meaningful only under load i e when hose probe...

Страница 22: ...o choose A CAL connect pure methane or natural gas and press the left Yes button The screen displays Calibrating for about a minute and then changes to Calibration OK with a display of readings taken...

Страница 23: ...ading setup parameters DATA LINK can be installed on PC s with Windows 2000 or XP Pro operating systems and equipped with a USB port Figure 3 Main Menu the initial DATA LINK screen 1 DOWNLOADS The mai...

Страница 24: ...ble which helps to identify when the unit was powered on and the operational mode changed Using the data on alarm flags in the Readings Summary file a Sorted Alarm Events table can be displayed to ide...

Страница 25: ...of the data is archived in the PC no matter how many times it is downloaded from the unit to the PC Downloading Readings Data It can take 5 minutes to download all the readings data from a unit to a P...

Страница 26: ...story by Unit ID is a report of the date and time of each calibration with before and after calibration readings of each sensor Since the pump must work in order to calibrate a detector this is checke...

Страница 27: ...y User is a list of each time when a user is assigned a new unit The Unit Assignment History by User report summarizes the assignment audit trail with a chronological list of units used by a user and...

Страница 28: ...23 Readings and Exposure Report Selection Form Bar Holing reports showing peak and sustained readings...

Страница 29: ...back of the case see Step 2 above removing the manifold from the bottom of the case and unscrewing the four screws which secure the pump gasket pump plate diaphragm and piston to the manifold Usually...

Страница 30: ...ase and main circuit board removed CAUTION After replacing a methane or a CO sensor perform the New Filament procedure described under Part 2 Setup and Calibration and then completely calibrate the in...

Страница 31: ...ter 5 pkg FF 105 Heavy Hydrocarbon Filter 5 pkg HF 005 Inlet Filter Quick Connect Air Intake 5 pkg IF 705 3 Sensors Methane Sensor for Rovers with S N less than 401000 MS 601 Methane Sensor for Rovers...

Страница 32: ...27 Bascom Turner Instruments 111 Downey Street Norwood MA USA 02062 781 769 9660 800 225 3298 Fax 781 769 2099 bascomturner com...