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Portable Oxygen Monitor
OPERATING & SERVICE INSTRUCTIONS FOR
P
ORTABLE
P
ORTABLE
TYPE B EQUIPMENT:
Teledyne Analytical Instruments
AD300
O
A
XYGEN
MD300
O
XYGEN
Equipment providing a particular degree
of protection against electric shock,
particularly regarding—
• Allowable LEAKAGE CURRENT
• Reliability of the protective earth
connection (if present).
NALYZER
M
ONITOR
P/N M/AD/MD300
06-23-2010
i
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Related Manuals for Teledyne MD300
Summary of Contents for Teledyne MD300
- Page 1 OPERATING & SERVICE INSTRUCTIONS FOR AD300 ORTABLE XYGEN NALYZER MD300 ORTABLE XYGEN ONITOR P/N M/AD/MD300 06-23-2010 TYPE B EQUIPMENT: Equipment providing a particular degree of protection against electric shock, particularly regarding— • Allowable LEAKAGE CURRENT • Reliability of the protective earth connection (if present).
- Page 2 Teledyne warrants that the goods are free from defects of material and of construction for a period of 2 years from the date of shipment from Teledyne. The Class R-17S Micro-Fuel Cell is warranted for two years from the date of shipment from Teledyne.
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Page 3: About This Manual
How To Use This Manual This manual is designed to walk you through the initial set-up of the AD300 Portable Oxygen Analyzer and MD300 Portable Oxygen Monitors. It also serves as a quick reference guide to help you with specific questions or operating problems. -
Page 4: Safety Messages
THE MONITOR SHOULD ONLY BE USED FOR THE PURPOSE AND IN THE MANNER DESCRIBED IN THIS MANUAL. IF YOU USE THE ANALYZER IN A MANNER OTHER THAN THAT FOR WHICH IT WAS INTENDED, UNPREDICTABLE BEHAVIOR COULD RESULT POSSIBLY ACCOMPANIED WITH HAZARDOUS CONSEQUENCES. Teledyne Analytical Instruments... -
Page 5: Table Of Contents
2.1.1 Sensor Installation or Replacement 2.1.2 Mounting 2.1.2.1 V-Mount Adapter Installation 2.1.2.2 Universal Mounting Clamp Installation 2.1.3 Battery Installation 2.1.4 Calibration 2.1.5 Alarms (MD300 only) 2.1.6 Output 0-1 VDC or RS232 2.2 Use 2.2.1 Gas Sampling 2.3 Gas Sampling/Sensor Issues 2.3.1 Temperature 2.3.2 Pressure... - Page 6 3.5 Gas Sampling 3.5.1 Discrepancy in Readings 3.6 Troubleshooting 3.7 Watchdog 3.8 Other Problems with the Instrument 3.9 Return Authorization for Service Appendix ..................37 A.1 Specifications A.2 Spare Parts List A.3 Optional Accessories Index ............Error! Bookmark not defined. Teledyne Analytical Instruments...
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Page 7: List Of Figures
Figure 2-6: Installing Batteries ............17 Figure 2-7: Calibration Sequence ..........178 Figure 2-8: Setting the Alarms (MD300) ........20 Figure 2-9: 0-1 VDC or RS 232 Digital Output Port ....... 22 Figure 2-10: Low Pressure Gas Sampling ........23 Figure 2-11: High Pressure Gas Sampling ........ -
Page 8: List Of Tables
AD300/MD300 List of Tables Table 3-1 Troubleshooting ............31 Table 3-2 Error Codes ..............35 Teledyne Analytical Instruments viii... -
Page 9: Introduction
The operator interface is accomplished through a series of buttons located conveniently on the front face of the instrument. The MD300 front face interface is shown in Figure 1-1. The AD300 is similar but without the battery and alarm test buttons is shown in Figure 1-2. -
Page 10: Figure 1-2: Ad300 Front View
2000 hours in Non-alarm State. Oxygen analysis is linear across the single range of 0-100% using Teledyne’s class R17S oxygen sensor. A unique sensor failure alarm is incorporated which warns the user if the sensor signal is lost or low. -
Page 11: Features
Gas analysis is accurate to within ±2% of full scale over the operating range of 0-100% at constant temperature and pressure. The following features are standard on the AD300 and MD300 instruments: Large easy to read 3 1/2 digit LCD display (see options) -
Page 12: The R17S Sensor-How It Works
RS 232 Interface Cable (P/N B-75555) 1.3 The R17S Sensor—How it works The AD300/MD300 uses Teledyne Analytical Instruments Patented R17S disposable oxygen sensor. The sensor is made up of a sensing cathode and anode (fuel) immersed in electrolyte and packaged in a small plastic container. -
Page 13: Operation
Teledyne Analytical Instruments. Note: This equipment is internally powered using 3 AA batteries. 2.1 Setup To set up and use your AD300 analyzer or MD300 monitor: 1. Install the sensor. 2. Install the batteries. 3. Calibrate the unit. -
Page 14: Figure 2-1: Installing The R17S Sensor
3. Plug the other end of the coiled cable into the receptacle located on the right side of the unit and secure it in place using the capture nut. See Figure 2-2. Figure 2-2: Sensor Cable Connection to Monitor Teledyne Analytical Instruments... -
Page 15: Mounting
Portable Oxygen Monitor Operation Note: When the AD/MD300 instrument is used for diffusion sampling the plastic flow diverter must be removed from the R17S sensor. If the sensor is used in sample mode the diverter must be used as shown in Figure 2-3. -
Page 16: Universal Mounting Clamp Installation
Note: Three “AA” alkaline batteries must be installed in the unit before the monitor will operate. The unit must be recalibrated whenever new batteries are installed. For the MD300, the HI and LOW alarm set points must be reset to the desired values. To install the batteries: 1. -
Page 17: Figure 2-6: Installing Batteries
All keys except the CAL and ON/Off (I/O) keys are inoperable until a successful calibration is achieved. 5. (MD300 only) To test the batteries. Press the BATT TEST key once. The battery display, located below the oxygen Teledyne Analytical Instruments... -
Page 18: Calibration
LCD display flashing 00.0. Only the CAL and ON/OFF (I/O) keys are functional at this point. On the MD300 monitor, the alarm set points will also need to be reset after calibration is completed. - Page 19 Press the LOCK/UNLOCK key to save the calibration data. Note: The AD300 and MD300 can only be calibrated using 100% oxygen or room air 20.9%. Improper calibration or use of other gas concentrations will activate the SENSOR indicator.
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Page 20: Alarms (Md300 Only)
LOCK/UNLOCK key. When pressed the display will start flashing. To set the alarms on the MD300 monitor (see Figure 2-8): 1. To set the HI alarm: Press the HI ALARM SET key once. Press the UP and DOWN arrow key until the desired value is displayed in the lower right corner of the display. -
Page 21: Output 0-1 Vdc Or Rs232
RS 232 signal is output from the output port shown in Figure 2-9. Use the optional RS 232 Interface Cable (P/N B-75555) available from Teledyne for connection to a standard RS 232 port on a computer or other suitably equipped digital device. -
Page 22: Use
(0-1 VDC) output, use the same procedure except in step 3 remove the jumper from JP7 and replace it at JP3. 2.2 Use 2.2.1 Gas Sampling The AD/MD300 instruments can be used to measure the oxygen concentration in two basic modes: Teledyne Analytical Instruments... -
Page 23: Figure 2-10: Low Pressure Gas Sampling
This is the oxygen value of the sample gas. CAUTION: MAKE SURE YOU DO NOT PRESSURIZE THE SENSOR DURING CALIBRATION OR USE, AS THIS WILL PRODUCE ERRORS IN THE READINGS. Teledyne Analytical Instruments... -
Page 24: Gas Sampling/Sensor Issues
The LOCK/UNLOCK key acts as a toggle, pressing LOCK/UNLOCK once renders inactive all keys except the ALARM SILENCE () and BATT TEST (MD300 only) keys. Pressing LOCK/UNLOCK a second time unlocks the keypad. -
Page 25: Pressure
This is way it is important to calibrate the AD/MD300 oxygen sensor at regular intervals. It is recommended that the unit be calibrated prior to each use or every 8 hours. -
Page 26: Discrepancy In Readings
2.3.4 Discrepancy in Readings When a discrepancy in oxygen readings is suspected, the oxygen analyzer readings should be verified by checking the AD/MD300 battery condition and calibration using 100% oxygen. If the monitor can be calibrated, the unit can be assumed to be in good working order and capable of providing readings to specification. -
Page 27: Do's And Don'ts
Remove and save the plastic flow diverter when using the sensor in non-flowing applications. (MD300 only) Perform an alarm test before each use (press the ALARM TEST key). – DON’T – Use this monitor if you suspect any malfunction. - Page 28 Pass hot or cold gas mixtures over the sensor. Adjust the reading in air after 100% calibration Use cleaning agents or liquids in the cable receptacles or around the battery compartment. Store the unit in hot or humid environment. Expose the LCD to excessive sunlight. Teledyne Analytical Instruments...
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Page 29: General Service Information
Service Manual Service Manual 3.1 General Service Information The Teledyne Model AD300 and MD300 series of portable oxygen monitors are designed to be robust yet compact in size. In order to achieve maximum reliability in a microprocessor-based instrument, a single PC board is used which relies exclusively on surface mount technology. -
Page 30: Sensor Maintenance
Make sure the connections are tight and dry. In the event that the sensor has been damaged, consult the Material Safety Data Sheet available from the factory or online at www.teledyne- ai.com for handling guidelines. 3.5 Gas Sampling 3.5.1 Discrepancy in Readings... -
Page 31: Troubleshooting
3.6 Troubleshooting The AD300 and MD300 oxygen monitors provide a variety of built-in safety features that prevent its use when a fault is detected. When a unit displays the message √ SENSOR and sounds the audible and visual alarm continuously, it is an indication of a faulty connection between the sensor and the unit or an expired or faulty sensor. - Page 32 B) If a high degree of accuracy is desired, or the concentration of O2 is in excess of 40%, calibration with 100% is recom- mended. Teledyne Analytical Instruments...
- Page 33 ―de-tune‖ its antenna effect. Placing the cable in a different position may also help. Alarm sounds/flashes A) (MD300) Readings A) Adjust high and low continuously. are outside alarm alarm setting to be limits. above and below O2 value being displayed.
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Page 34: Watchdog
Up and Down key. Note: In the event that none of these procedures produce desired results, remove the batteries and return the unit to Teledyne for repair. 3.7 Watchdog The AD300/MD300 is equipped with a watchdog circuit that continuously monitors the electronics for proper operation. - Page 35 The second digit, in this example (2), indication of shows the type of digital to analog failure. the type of DAC failure) 0 - Measurement 1 - High Test 2 - Low Test 3 - Offset Cal 4 - Gain Cal Teledyne Analytical Instruments...
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Page 36: Other Problems With The Instrument
Some of these codes refer to specific components on the PCB that are problematic or have failed. These codes are useful in reporting a problem with your instrument to Teledyne Customer Service. If an error code is indicated on your monitor record the number and report it to the Customer Service Department at the address below. -
Page 37: Appendix
Alarm accuracy: Alarm thresholds are digitally stored and alarm affectivity is digitally compared against the value calculated by the microprocessor. Hence, the accuracy of the alarms is the same as the accuracy of the unit as specified above. Teledyne Analytical Instruments... -
Page 38: Spare Parts List
0-1 VDC Interface Cable B-75555 RS 232 Interface Cable ____________________ Note: Orders for replacement parts should include the part number (if available) and the model and serial number of the instrument for which the parts are intended. Teledyne Analytical Instruments... - Page 39 Portable Oxygen Monitor Appendix Orders should be sent to: TELEDYNE Analytical Instruments 16830 Chestnut Street City of Industry, CA 91749-1580 Phone (626) 934-1500, Fax (626) 961-2538 Web: www.teledyne-ai.com Or your local representative. Teledyne Analytical Instruments...