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Table of Contents
Troubleshooting
Related Manuals for AMI 111
Summary of Contents for AMI 111
- Page 1 Oxygen Analyzer Manual Model 111/111P AMI, Costa Mesa, CA Made in the USA...
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Page 2: Table Of Contents
Operation General Description: Front Panel Controls: Flow Rate Adjustment: Front panel LED: Calibration (25% unit): Calibration (111 or 111P with optional 95% range): A note on analyzer linearity: Atmospheric pressure effects: Communication program: Top section: Analyzer Info Section: Analyzer Setup Section: Sensor Calibration Data: Contents ... - Page 3 Data Logging Variables: Maintenance and troubleshooting Maintenance: Sensor Replacement: Battery Replacement: Troubleshooting Specifications and Disclaimer Specifications: Disclaimer Contents ii AMI Analyzer Manual...
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Page 4: Preface
Oxygen analysis can be a problematical area for people with no experience in it – and AMI is always happy to help you if you run into any problems. Please feel free to call at any time for help. -
Page 5: Model 111/111P Oxygen Analyzer
The Advanced Micro Instruments Model 111 and 111P provide the latest in high precision percentage oxygen measurement in the range of 0.1% to 25% (or optionally, 50% and 95%). The Model 111 and 111P incorporate a state of the art Zirconium Oxide sensor that provides unprecedented accuracy and stability, while retaining the traditional AMI features and ease of use. -
Page 6: Data Logging
Sample conditioning: The model 111 is intended to use a positive pressure sample. The sample should be free of liquids, and dust. It must be free of combustible material, since the sensor will oxidize anything combustible, reducing the oxygen reading by the amount it took to burn up the contaminant. -
Page 7: Safety
Oxygen sensor: The Model 111’s Zirconium oxide sensor produces an output current in proportion to the amount of oxygen present, and has virtually zero output in the absence of oxygen, thus avoiding any requirement to zero the analyzer. -
Page 8: Installation And Operation
14 hours. The internal charging circuit will not allow the batteries to be overcharged. The batteries in the model 111 will last for about 8 hours of continuous operation. In the 111P, they will last the same length of time if you don’t use the pump; the pump will drain them in about an hour if you use it continuously. -
Page 9: Sample Gas And Electrical Connections
The sensor is built into the analyzer, and does not need any separate installation. It is equipped with ¼” compression fittings on the inlet. The exhaust should be left open, or if desired, brought through a low restriction tube such as ¼” diameter plastic tubing to a safe area. Installation and Operation 6 AMI Analyzer Manual... -
Page 10: Interconnections
Digital communications: The Model 111/111P is equipped with a USB connector on the back of its case. This may be used to access data that has been logged by the built-in data logger, as well all the other features of the analyzer. These include the calibration settings, linearity settings, heater settings and internal voltages. -
Page 11: Operation
In normal operation, it will be green. If the pump is running, and the batteries are charged, it will turn blue (this is not applicable for the 111 version). When the batteries are low, it will turn red, and the pump in the 111P will not work for more than five seconds. -
Page 12: Calibration (25% Unit)
2. (111P) Optional: connect to a span gas cylinder with the regulator set at 8 psig. 3. (111) allow clean air from an air compressor (with an oil filter) or span gas to flow through the analyzer at 1SCFH. Make sure the source pressure is under 100psig, preferably 10psig. -
Page 13: A Note On Analyzer Linearity
MUST use a dual stage regulator with stainless steel diaphragms on it. Any sudden failure of a regulator may allow enough temperature rise through adiabatic compression to ignite virtually anything, including stainless steel tubing and an AMI analyzer. Installation and Operation 10... -
Page 14: Communication Program
Note that if the analyzer loses power, you will have to restart the AMI program as the USB chip will have to restart. -
Page 15: Top Section
Analyzer Info Section: These boxes are populated by the program from data provided by the analyzer. (The 111 series of analyzers do not have all the features supported by this program, so a number of these boxes will be greyed out). -
Page 16: Sensor Calibration Data
The unit is capable of storing about 21000 data points, corresponding in this case to 21000 minutes, or rather more than 14 days. Setting the interval to 4 minutes will allow it to store over two Installation and Operation 13 AMI Analyzer Manual... - Page 17 The analyzer can be left to overwrite the old data by itself, or else it can be told to start again at the beginning by pressing the “Clear Data” button. The chart shows the oxygen reading, and the average battery voltage. Installation and Operation 14 AMI Analyzer Manual...
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Page 18: Variables
When the analyzer is first connected, the program will fill up all the variables in the list and will then poll a subset of them regularly. If desired the “REFRESH” button will cause the program to update every variable. Mostly this screen is used for troubleshooting. Installation and Operation 15 AMI Analyzer Manual... -
Page 19: Maintenance And Troubleshooting
Maintenance and troubleshooting Maintenance: The 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. -
Page 20: Troubleshooting
1. (The unit won’t respond to the up and down buttons during span) 2. Use the AMI User Interface program to set the security to either “Span only” or “No security”. 3. Once you have spanned it, set the security back again so people do not adjust it in error. - Page 21 10% of helium – this will cool the sensor causing it to read low. 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.
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Page 22: Specifications And Disclaimer
Power requirements: 115/230VAC to 12VDC battery charger. Rechargeable NiCad batteries, 8 hours continuous for Model 111. Rechargeable NiCad batteries, 1 hour continuous for Model 111B and Model 111P pump versions Minimum detection: .01% of oxygen Repeatability: +/- 0.1% of range or +/- 0.1% of oxygen, whichever is greater ... -
Page 23: Disclaimer
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 designed to act as a medical instrument, monitoring breathing air for correct oxygen concentration, and should not be used as such when it is the only safety device on the gas system.
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