Teledyne OT-2 - Manuals - manualsarea.com

Teledyne Analytical Instruments ii Model OT-2 System Copyright © 1999 Teledyne Analytical Instruments All Rights Reserved. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or computerlanguage in whole or in part, ...

Page 3 - iii; Table of Contents; Introduction

iii Teledyne Analytical Instruments Model OT-2 System Table of Contents 1 Introduction 1.1 Overview ........................................................................ 1-11.2 Features .......................................................................... 1-11.3 Typical Applications ...........

Page 4 - iv; Appendix; The operator needs to refer to the manual

Teledyne Analytical Instruments iv Model OT-2 System Appendix Specifications ........................................................................ A-1Recommended Spare Parts List .......................................... A-2Drawing List ..............................................................

Page 5 - Introduction 1; Overview; Features

1-1 Teledyne Analytical Instruments Model OT-2 System Introduction 1 Introduction 1.1 Overview The Teledyne Analytical Instruments Model OT-2 System is designed to accurately monitor the oxygen content in a widevariety of gases at the ppm level. The Trace Oxygen Transmitteris equipped with two oxyge...

Page 6 - Introduction; Typical Applications

Teledyne Analytical Instruments 1 Introduction Model OT-2 System 1-2 • Accurate (±2% of full scale at constant temperature on100 ppm, or 1000 ppm scale; ±1 ppm on 0–10 ppm scaleat constant temperature) • Insensitive to flow variations • Fast response and recovery • Long life, maintenance-free Micro-...

Page 7 - Operator Interface

1-3 Teledyne Analytical Instruments Model OT-2 System Introduction 1 1.4 Operator Interface The OT-2 System is housed in a rugged metal NEMA-4 case with the display visible from the front and the controls accessiblefrom inside the front door. See Figure 1-1. The front door has aclear Lexan window fo...

Page 9 - Operational Theory 2; The OT-2 System is composed of three subsystems:; Operational Theory

2-1 Teledyne Analytical Instruments Model OT-2 System Operational Theory 2 2.1 Introduction The OT-2 System is composed of three subsystems: 1. Micro-Fuel Cell Sensor2. Electronic Signal Processing, Display and Control3. Sample System The Micro-Fuel Cell is an electrochemical galvanic device that tr...

Page 10 - Operational Theory; Micro-Fuel Cell Sensor; The oxygen sensor used in the Model OT-2 System is a Micro-

Teledyne Analytical Instruments 2-2 2 Operational Theory Model OT-2 System 2.2 Micro-Fuel Cell Sensor 2.2.1 Principles of Operation The oxygen sensor used in the Model OT-2 System is a Micro- fuel Cell designed and manufactured by Analytical Instruments. Itis a sealed plastic disposable electrochemi...

Page 12 - Warning:The sensor used in the Model OT-2 System uses electro-

Teledyne Analytical Instruments 2-4 2 Operational Theory Model OT-2 System Warning:The sensor used in the Model OT-2 System uses electro- lytes which contain substances that are harmful iftouched, swallowed, or inhaled. Avoid contact withANY fluid or powder in or around the unit. What mayappear to b...

Page 13 - The Micro-Fuel Cell responds to the partial pressure of oxygen

2-5 Teledyne Analytical Instruments Model OT-2 System Operational Theory 2 2.2.4 The Effect of Pressure The Micro-Fuel Cell responds to the partial pressure of oxygen present inside the cell holder. By design, the total gas pressure inside the cell holder is kept approximately the same as the atmosp...

Page 14 - Given that the total pressure of the sample gas on the surface

Teledyne Analytical Instruments 2-6 2 Operational Theory Model OT-2 System 2.2.5 Calibration Characteristics Given that the total pressure of the sample gas on the surface of the Micro-Fuel Cell input is constant, a convenient characteris-tic of the cell is that the current produced in an external c...

Page 15 - Electronics and Signal Processing

2-7 Teledyne Analytical Instruments Model OT-2 System Operational Theory 2 2.3 Electronics and Signal Processing The OT-2 circuitry consists of three stages: an input stage, a temperature compensation/gain stage and an output stage. The input stage consists of a current to voltage converter producin...

Page 16 - Sample System; Sample Flow Description:

Teledyne Analytical Instruments 2-8 2 Operational Theory Model OT-2 System 2.6 Sample System The system consists of a shut off valve, particulate filter, pres- sure regulator, scrubber, calibration selector valve, flow controlvalve, O 2 transmitter and a sample flow meter and incorporates ¼ inch tub...

Page 17 - Figure 2-5 is the Piping Layout of the sampling system. In the

2-9 Teledyne Analytical Instruments Model OT-2 System Operational Theory 2 Figure 2-5 Piping Layout Figure 2-5 is the Piping Layout of the sampling system. In the standard instrument, calibration gases (zero and span) are con-nected directly to the Span Gas In port by teeing to the port withappropri...

Page 19 - Operation 3; Operation; Operation of the Model OT-2 System involves installing the unit,; Installation; WARNING: Safe operation of the system requires the user to; Installation of the Model OT-2 System includes:; Electrical connections; Unpacking the Analyzer; Carefully unpack the analyzer and inspect it for damage.

Model OT-2 System Operation 3 3-1 Teledyne Analytical Instruments Operation Operation of the Model OT-2 System involves installing the unit, making appropriate sample gas connections, and calibration. 3.1 Installation WARNING: Safe operation of the system requires the user to properly ground the sys...

Page 20 - Operation; Mounting the Analyzer; The OT-2 System is designed for bulkhead mounting. Figure 3-1

3 Operation Model OT-2 System 3-2 Teledyne Analytical Instruments 3.1.2 Mounting the Analyzer The OT-2 System is designed for bulkhead mounting. Figure 3-1 is an illustration of the OT-2 System and mounting hole dimensions.There are four mounting holes—one in each of the inside cornersof the rigid e...

Page 21 - All operator controls are located inside the system enclosure,

Model OT-2 System Operation 3 3-3 Teledyne Analytical Instruments All operator controls are located inside the system enclosure, which is hinged on the left edge and provides easy access to thetransmitter, sensor and cell block inside the instrument. The mainenclosure door will swing open when the s...

Page 22 - All gas connections, Sample In, Sample Return and Span Gas

3 Operation Model OT-2 System 3-4 Teledyne Analytical Instruments To connect gas lines to the Model OT-2 System: 1. Insert the tube into the tube fitting, and finger-tighten the nut until the tubing cannot be rotated freely, by hand, inthe fitting. (This may require an additional 1/8 turnbeyond fing...

Page 23 - Figure 3-3 Front View of Transmitter; System Power Requirements:; polarity protected power source.

Model OT-2 System Operation 3 3-5 Teledyne Analytical Instruments Figure 3-3 Front View of Transmitter System Power Requirements: The Model OT-2 System requires a 12 VDC (nominal), reverse polarity protected power source. Observe good wiring practices. For hazardous areaapplications, the Model OT-2 ...

Page 24 - Installing the Micro-Fuel Cell; Recommendation: During installation, minimize the time the; Calibration; Calibration Gas Connections

3 Operation Model OT-2 System 3-6 Teledyne Analytical Instruments 3.2 Installing the Micro-Fuel Cell The Micro-Fuel Cell is not installed in the cell block when the instrument is shipped. Install it before the analyzer is placed inservice. When the micro-Fuel Cell needs to be installed or replaced, ...

Page 25 - The span gas cylinder must be equipped with a pressure

Model OT-2 System Operation 3 3-7 Teledyne Analytical Instruments The span gas cylinder must be equipped with a pressure regulator with a metallic diaphragm. The regulator should be set toapproximately 3-5 psig. Rotate the selector valve (a) to the spanposition and observe the flow meter (b) which s...

Page 26 - NOTE: This procedure is more critical on the 0-10 ppm range and; Switch the system from zero gas to span gas and allow; NOTE: The span gas should have an O; computer will have a

3 Operation Model OT-2 System 3-8 Teledyne Analytical Instruments NOTE: This procedure is more critical on the 0-10 ppm range and less critical on the 0-100 or 0-1000 ppm range. 3.3.2 Setting the Span Pot 1. Switch the system from zero gas to span gas and allow time for stabilization. Figure 3-6: Sp...

Page 27 - SENSOR LIFE WILL BE SHORTENED.; Testing the System

Model OT-2 System Operation 3 3-9 Teledyne Analytical Instruments 3.3.3 H 2 S Scrubber The life expectancy of the stainless steel H 2 S scrubber, in- cluded in this system, is determined by the amount of H 2 S passing through it. With the maximum concentration of 200 PPM H 2 S and a flow rate of 0.2...

Page 29 - Maintenance 4; Routine Maintenance; Aside from normal cleaning and checking for leaks at the gas; Cell Replacement; The Micro-Fuel Cell is a sealed electrochemical transducer; NOTE: Do not disturb the integrity of the cell package until the

4-1 Teledyne Analytical Instruments Model OT-2 System Maintenance 4 Maintenance 4.1 Routine Maintenance Aside from normal cleaning and checking for leaks at the gas connections, routine maintenance includes servicing the filter, thescrubber, installing replacement Micro-Fuel cells and recalibration....

Page 30 - Maintenance; The cell block is located in the center of the unit.; NOTE: Before the cell is removed from its package, a zero gas; Remove the new cell from its package, and carefully; INSULATION

Teledyne Analytical Instruments 4-2 4 Maintenance 4 Maintenance 4 Maintenance 4 Maintenance 4 Maintenance Model OT-2 System To replace the cell: Figure 4-1 1. Open the enclosure door. 2. Undo the velcro straps. 3. Remove the insulation. 4. The cell block is located in the center of the unit. Unscrew...

Page 31 - Cell Warranty; Scrubber Replacement; NOTE: If the sensor is exposed to air through back diffusion, from; Filter Servicing

4-3 Teledyne Analytical Instruments Model OT-2 System Maintenance 4 4. Place the new cell on the cap with the sensing surface face down and the gold contact rings up. 5. Position the cell and cap so that the cell is inside the cell block. Press up on the cap and rotate. Tighten the capscrews. 4.2.1 ...

Page 33 - A p p e n d i x; System Enclosure: NEMA 4 Rated, bulkhead mounted; concentration consis-

A-1 Teledyne Analytical Instruments Model OT-2 System A p p e n d i x A p p e n d i x Specifications: System Enclosure: NEMA 4 Rated, bulkhead mounted Power Requirements: 9-16 VDC and 16-275mA. Ranges: 0–10ppm and 0–100ppm Oxygen or 0-100 ppm and 0-1000 ppm O 2 . Accuracy: ± 2% of full scale at cons...

Page 34 - Recommended Spare Parts List; Orders should be sent to:

Teledyne Analytical Instruments A-2 A p p e n d i x A p p e n d i x A p p e n d i x A p p e n d i x A p p e n d i x Model OT-2 System Recommended Spare Parts List Qty. Part Number Description 1 C71345A & C71345B Cell Block Insulation Set 1 C70976B PC Board — 1-5V Transmitter (0-100/0-1000 ppm) 1...

Page 35 - Material Safety Data Sheet; Section II – Physical and Chemical Data; KOH

A-3 Teledyne Analytical Instruments Model OT-2 System A p p e n d i x Material Safety Data Sheet Material Safety Data Sheet Material Safety Data Sheet Material Safety Data Sheet Material Safety Data Sheet Section II – Physical and Chemical Data Section I – Product Identification Product Name: Micro-...

Page 36 - Section III – Physical Hazards; Primary route of entry:; Liquid inhalation is unlikely.; Medical conditions; None; Other health hazards:; Potential for fire and explosion:; The electrolyte in the Micro-Fuel Cells is; Potential for reactivity:; The sensors are stable under normal conditions of; Section IV – Health Hazard Data

Teledyne Analytical Instruments A-4 A p p e n d i x A p p e n d i x A p p e n d i x A p p e n d i x A p p e n d i x Model OT-2 System Section III – Physical Hazards Primary route of entry: Ingestion, eye/skin contact Exposure limits: OSHA PEL: .05 mg./cu.m. (Pb) ACGIH TLV: 2 mg./cu.m. (KOH) Effects ...

Page 37 - Before opening the bag containing the sensor; Section VI – Handling Information; Section V – Emergency and First Aid Procedures

A-5 Teledyne Analytical Instruments Model OT-2 System A p p e n d i x NOTE: The oxygen sensors are sealed, and under normal circumstances, the contents of the sensors do not present a health hazard. Thefollowing information is given as a guide in the event that a cellleaks. Protective clothing: Rubb...