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Oxygen Alarm Monitor
INSTRUCTION MANUAL
FOR
Model 335 Series
Oxygen Alarm Monitor
DANGER
HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM.
M24692
PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM.
ECO# 99-0011
HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A
TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED.
10/08/99
ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE
CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/MANAGER.
TELEDYNE ANALYTICAL INSTRUMENTS
i
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Summary of Contents for Teledyne 335 Series
- Page 1 Oxygen Alarm Monitor INSTRUCTION MANUAL Model 335 Series Oxygen Alarm Monitor DANGER HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM. M24692 PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM. ECO# 99-0011 HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED.
- Page 2 Teledyne Analytical Instruments (TAI), 16830 Chestnut Street, City of Industry, CA 91749- 1580.
- Page 3 Since the use of this instrument is beyond the control of Teledyne, no responsibility by Teledyne, its affiliates and agents for dam- age or injury resulting from misuse or neglect of this instru- ment is implied or assumed.
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Page 4: Table Of Contents
3.4 Operation ................. 3-4 3.5 Cell Warranty ..............3-4 3.6 Safety Checklist ............... 3-4 3.7 Accessory Flow-Through Adapter ........3-5 Appendix Specifications ................. A-1 Recommended Spare Parts List ..........A-2 Drawing List ................A-2 Material Safety Data Sheet ............ A-3 TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 5: Introduction
Oxygen Alarm Monitor Introduction 1 Introduction The Teledyne Analytical Instruments (TAI) Model 335 Oxygen Alarm accurately measures the oxygen content of the atmosphere sur- rounding its sensor. The standard measurement range is 0-25% oxygen. The alarm feature of the instrument incorporates two adjustable setpoints to allow alarm warning under either of two independent oxygen level conditions. - Page 6 1 Introduction Model 335 TELEDYNE ANALYTICAL INSTRUMENTS...
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Page 7: Operational Theory
15% aqueous Potassium Hydroxide (KOH) electrolyte in which they are immersed. The cell converts the energy from a chemical reaction into an electrical potential that can produce a current in an external electrical circuit. Its action is similar to that of a battery. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 8: Anatomy Of A Micro-Fuel Cell
The rings mate with spring-loaded contacts in the sensor block assembly and provide the electrical connection to the rest of the analyzer. Figure 2-1 illustrates the external features. mfcouts.wmf Figure 2-1: Micro-Fuel Cell mfc-xsec.wmf Figure 2-2. Cross Section of a Micro-Fuel Cell TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 9: Electrochemical Reactions
The electrons released at the surface of the anode flow to the cathode surface when an external electrical path is provided. The current is propor- tional to the amount of oxygen reaching the cathode. It is measured and used to determine the oxygen concentration in the gas mixture. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 10: The Effect Of Pressure
In other words it has a linear characteristic curve, as shown in Figure 2-3 (using arbitrary units). Measuring circuits do not have to compensate for nonlinearities. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 11: Circuit Description
The amplified 1V signal is fed to the meter, and a full scale meter response with 1V applied is accomplished by adjustment of potentiometer P6. Comparator sections A2a and A2b, biased by setpoint potentiometers P5 and P4, respectively, provide direct activation of the alarm relays and TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 12: Alarms
As per OSHA specifications, the standard factory setting of the two alarms provides a “CAUTION” alarm at 20% oxygen (at the sensor) and a “DANGER” alarm at 19.5% oxygen. To cover special cases, a limited amount of adjustment is possible. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 13: Installation And Operation
This instrument is designed to operate from a 115VAC @ 50/60 Hz power. As an option, if specified at the time of purchase, this instrument can be powered from 100 or 220VAC @ 50/60 Hz. Connect the included power cord to the AC power. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 14: Installing The Rechargeable Nicad Batteries
TS2-6. 3.2.3 Signal Connections Alarm relay and optional output signals are available to the user from a terminal block inside the enclosure. See the Interconnection Diagram in- cluded with the drawings at the back of this manual. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 15: Calibration
3.4 Operation Once the instrument has been installed, calibrated, and the power turned on, it will continuously monitor the oxygen level within the environment it is TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 16: Cell Warranty
The procedures and precautions relating to the use of the instrument in the user’s process must be developed by the user. It is vital that the operator understand and test the operation of the total system. Verify that: 1. Instrument power is active and adequate. TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 17: Accessory Flow-Through Adapter
The design provides gas flow over the sens- ing surface of the cell without contamination by the surrounding monitored atmosphere. TELEDYNE ANALYTICAL INSTRUMENTS... - Page 18 3 Installation and Operation Model 335 TELEDYNE ANALYTICAL INSTRUMENTS...
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Page 19: Appendix Specifications
" holes, 8" center-to-center). 11.5"(H) x 9"(W) x 4.125"(D) (22.9cm x 29.2cm x 10.4cm) Weight: 11.7lbs (5.3Kg) Alarms: Factory Set: CAUTION = 20.0% DANGER = 19.5% Audible Horn Visual Red Indicator Lamps TELEDYNE ANALYTICAL INSTRUMENTS... -
Page 20: Recommended Spare Parts List
Orders for replacement parts should include the part number, the model and serial numbers of the analyzer in which they are to be used. Orders should be sent to: TELEDYNE ANALYTICAL INSTRUMENTS 16830 Chestnut Street City of Industry, CA 91749-1580 Phone (626)961-1500, Fax (626)961-2538 TWX (910)584-1887 TDYANLY COID or your local representative. -
Page 21: Material Safety Data Sheet
Micro-Fuel Cells and Super Cells, all classes except A-2C, A-3, and A-5. Electrochemical Oxygen Sensors, all classes except R-19. Mini-Micro-Fuel Cells, all classes. Manufacturer: Teledyne Analytical Instruments Address: 16830 Chestnut Street, City of Industry, CA 91749 Phone: (626) 934-1500 Technical Support:... - Page 22 Chronic exposure from the lead contained in this product is extremely unlikely. TELEDYNE ANALYTICAL INSTRUMENTS...
- Page 23 If there is liquid around the cell while in the instrument, wear eye and hand protection. Cleanup Procedures: Wipe down the area several times with a wet paper towel. Use a fresh towel each time. Contaminated paper towels are considered hazardous waste. TELEDYNE ANALYTICAL INSTRUMENTS...
- Page 24 NOTE: The above information is believed to be correct and is offered for your information, consideration, and investigation. It should be used as a guide. Teledyne Analytical Instruments shall not be held liable for any damage resulting from handling or from contact with the above product.
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