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AMI Analyzer Manual

Installation and Operation



Figure 1. Outline Drawing

Sample gas and electrical connections :

The sensor is built into the analyzer, and does not need any separate installation. It is equipped with a standard
Swagelok



fitting that is suitable for use with a hose designed to mate with the fitting on an aircraft. This hose must be

separately procured and musat be selected according to the aircraft fitting used.

The exhaust should be left open.

UNDER NO CIRCUMSTANCES REMOVE THE EXHAUST FITTING! It is a

flame arrestor, and removing it will turn the analyzer into a guaranteed ignition source.

Содержание 111B

Страница 1: ...AMI Oxygen Analyzer Manual Model 111B AMI Costa Mesa CA ...

Страница 2: ...nsor Warranty 3 Instrument Warranty 3 Installation and Operation 4 Receiving the analyzer 4 Charge the batteries 4 Location 4 Sample gas and electrical connections 5 Interconnections 6 Digital communications 6 Sample connection 6 Operation 7 General Description 7 Front Panel Controls 7 Flow Rate Adjustment 7 Front panel LED 7 Calibration 8 Logging 9 Retrieving Logged Data 9 ...

Страница 3: ...ntents ii Maintenance and troubleshooting 10 Maintenance 10 Sensor Replacement 10 Battery Replacement 10 Troubleshooting 11 All oxygen applications 11 Specifications and Disclaimer 13 Specifications 13 Disclaimer 14 Index 15 ...

Страница 4: ...ns to the oxygen analysis problem with a range of analyzers Every effort is made to ensure that AMI products provide reliable effective performance However there are many pitfalls in achieving correct oxygen analysis particularly at low ppm levels and AMI stands ready to provide a complete solution to the analysis problem from sample system design to on site troubleshooting and problem analysis Pl...

Страница 5: ... real time clock and 32K of non volatile ferro electric memory that provide a data logging function It will automatically log readings and the time and date at intervals for subsequent downloading into a computer It records the average reading over a user selectable period in minutes and occasionally it records the time and date so that the user may reconstruct the data accurately If logging is tu...

Страница 6: ...phere but you can use it if there is a possibility that the atmosphere might become so In other words if you are standing in a puddle of jet fuel don t use it It won t cause an explosion even if you do as long as nothing goes catastrophically wrong with the unit while you are standing there but please don t take the risk You can use it if you are in an area where someone might spill jet fuel but h...

Страница 7: ...ill last for about 8 hours of continuous operation if you don t use the pump the pump will drain them in about an hour if you use it continuously The circuitry won t allow the pump to run while the unit is recharging otherwise the batteries would never get charged Location The unit is designed to be used in a general purpose or class 1 division 2 group CD area It is not suitable for use in a class...

Страница 8: ...quipped with a standard Swagelok fitting that is suitable for use with a hose designed to mate with the fitting on an aircraft This hose must be separately procured and musat be selected according to the aircraft fitting used The exhaust should be left open UNDER NO CIRCUMSTANCES REMOVE THE EXHAUST FITTING It is a flame arrestor and removing it will turn the analyzer into a guaranteed ignition sou...

Страница 9: ...ser It is important that the hose used has appropriate fittings on each end the end attached to the analyzer may be a simple tube or an O ring type fitting designed to mate with the Swagelok fittings supplied If the aircraft supply is under positive pressure adjust the flow with the flowmeter valve to 1 SCFH if the aircraft is not at positive pressure turn on the pump with the Pump button and agai...

Страница 10: ...has been turned off The Span button allows you to calibrate the unit See the Calibration section below It is possible to disable this using the AMI communication program The pump button turns on or off the pump Since the pump uses a lot of current the unit will automatically turn it back off after five minutes Flow Rate Adjustment Use the valve on the bottom of the flow meter to control the flow r...

Страница 11: ...same 1SCFH rate adjusting as necessary with the valve 7 Let the reading stabilize for approximately 2 minutes 8 Verify that the analyzer reads the correct value as shown on the span tank bottle 0 14 O2 9 Flow the low level 3 gas through the analyzer at the same 1SCFH rate adjusting as necessary with the valve 10 Let the reading stabilize for approximately 2 minutes 11 Verify that the analyzer read...

Страница 12: ...utton marked Clear data log and you can download all the data by pressing the Download Data button You can save the resultant file by pressing the button marked Export Downloaded Data and it will ask you for a suitable file name You can manipulate the data displayed when you press the Graph Downloaded Data button to some degree you can expand and contract the time scale by clicking on it If you ne...

Страница 13: ...AMI oxygen analyzer is virtually maintenance free other than for periodic calibration Sensor Replacement The sensor should last for many years If the sensor expires you will have to return the analyzer back to the factory Battery Replacement 1 Please Contact AMI for Battery Replacement Technical Support ...

Страница 14: ...flon Tygon or similar high quality tubing 4 Verify the analyzer calibration using air as the span gas NOTE Be careful not to get soap solution on the PC boards Analyzer reads zero 1 The analyzer takes about two minutes to warm up Give it some time 2 See if it will respond to air If it does you have zero oxygen in your sample 3 If the analyzer resolutely reads zero all the time open the front and v...

Страница 15: ...ntain about 3 less oxygen than expected depending on temperature and that bottle air does actually contain 20 9 oxygen Manufactured air often does not 4 The flow rate is off Adjust it to be the same as when the unit was spanned Still no correct operation 1 Call AMI at 714 848 5533 and ask for Service 2 Or contact us by email at sales amio2 com ...

Страница 16: ... temperature 10 to 55 C Humidity 98 non condensing Operational conditions Pollution degree 2 Installation category I I Drift Better than 1 of full scale in 12 weeks at constant temperature Expected cell life 5 10 years Response times 90 of full scale 15 seconds Outputs 0 1 VDC Power requirements 12VDC 20W typically 1 5A current draw Box dimensions 10 6 h x 4 5 w x 4 5 d Weight 5 lbs Note that accu...

Страница 17: ...MI analyzer is designed for operation with non flammable samples in a general purpose or Class 1 Division 2 Group C D area Any damage resulting from its use in a more hazardous area is expressly the responsibility of the user The AMI analyzer is not designed as a primary safety device that is to say it is not to be used as the primary means of assuring personnel safety In particular it is not desi...

Страница 18: ...e Adjustment 7 Front Panel Controls 7 Front panel LED 7 General Description Operation 7 Incorrect readings 11 Instrument Warranty 3 Interconnections 6 Introduction 2 Location 4 Logging Data 9 Maintenance 10 No voltage or current output to recording device 11 Oxygen sensor 3 Pump 3 Receiving the analyzer 4 Recommended Sample System 6 Retrieving Logged Data 9 Safety 3 Sample gas and electrical conne...

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