Teledyne 3300PA manuale d’uso

i Teledyne Analytical Instruments OPERA TING INSTR UCTIONS FOR Model 3300P A P ercent Oxygen Analyzer HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM. PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM. HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A TIM[...]

ii Teledyne Analytical Instruments Copyright © 1999 Teledyne Analytical Instruments All Rights Reserved. No part of this manual may be reproduced, transmitted, tran- scribed, stored in a retrieval system, or translated into any other language or computer language in whole or in part, in any form or by any means, whether it be electronic, mechanica[...]

iii Teledyne Analytical Instruments Contents Introduction 1.1 Overview ........................................................................ 1-1 1.2 Main Features of the Analyzer ....................................... 1-1 1.3 F ront P anel Descr iption .................................................. 1-2 1.4 Rear P anel Description ..........[...]

iv Teledyne Analytical Instruments 4.4.1 Al ar m 1 .................................................................. 4-3 4.4.2 Al ar m 2 .................................................................. 4-3 4.4.3 Sensor F ail Alar m .................................................. 4-4 4.5 Selecting a Fixed Range or Autoranging .................[...]

v Teledyne Analytical Instruments COMBUSTIBLE GAS USA GE W ARNING D ANGER This is a general purpose instrument designed for usage in a nonhazardous area. It is the customer's responsibility to ensure safety especially when combustible gases are being analyzed since the potential of gas leaks always exist. The customer should ensure that the pr[...]

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1-1 Percent Oxygen Analyzer Introduction 1 Teledyne Analytical Instruments Introduction 1.1 Overview The Teledyne Electronic Technologies Analytical Instruments (TETAI) Model 3300PA is a microprocessor-based percent oxygen analyzer for real- time measurement of the percent of oxygen in inert gases, or in a wide variety of gas mixtures. It features [...]

1-2 1 Introduction Model 3300 PA Teledyne Analytical Instruments • Operator can select Autoranging, which allows the analyzer to automatically select the proper preset range for a given measurement, or he can lock the analyzer onto a single range. • Two concentration alarms with adjustable setpoints. • Sensor failure alarm. • Three analog o[...]

1-3 Percent Oxygen Analyzer Introduction 1 Teledyne Analytical Instruments • Set Alarm 2 Sets the Alarm 2 Hi or Low, and the concentration to which alarm 2 activates. • Set HI Range Set the high analysis range for the instrument (up to 0-25 %). • Set LO Range Set the low analysis range for the instrument (down to 0-1 %). • Span Span calibra[...]

1-4 1 Introduction Model 3300 PA Teledyne Analytical Instruments • Power Connection 100 – 240 V ac, at 50/60 Hz. The connector housing includes the fuse holder and the power switch. Fuse Holder: Replacing the fuse is described in Chapter 5, Maintenance . I/O Power Switch: Turns the instrument power ON (1) or OFF (0). • Analog Outputs 0 – 10[...]

2-1 Percent Oxygen Analyzer Operational Theory 2 Teledyne Analytical Instruments Operational Theory 2. 1 Introduction The analyzer is composed of two subsystems: 1. Analysis Unit with Micro-Fuel Cell Sensor 2. Control Unit with Signal Processing, Display and Controls The Analysis Unit is designed to accept the sample gas and direct it to the sensit[...]

2-2 2 Operational Theory Model 3300 PA Teledyne Analytical Instruments Micro-Fuel Cell is therefore a hybrid between a battery and a true fuel cell. (All of the reactants are stored externally in a true fuel cell.) 2.2.2 A natomy of a Micro-Fuel Cell The Micro-Fuel Cell is made of extremely inert plastic (which can be placed confidently in practica[...]

2-3 Percent Oxygen Analyzer Operational Theory 2 Teledyne Analytical Instruments The space between the active elements is filled by a structure saturated with electrolyte. Cathode and anode are wet by this common pool. They each have a conductor connecting them, through some electrical circuitry, to one of the external contacts in the connector rec[...]

2-4 2 Operational Theory Model 3300 PA Teledyne Analytical Instruments If the pressure changes, the rate that oxygen reaches the cathode through the diffusing membrane will also increase. The electron transfer, and therefore the external current, will increase, even though the proportion of oxygen has not changed. Fortunately, Dalton's Law con[...]

2-5 Percent Oxygen Analyzer Operational Theory 2 Teledyne Analytical Instruments 2.3 Electronics 2.3.1 General The signal processing uses an Intel  microcontroller with on-board RAM and ROM to control all signal processing, input/output, and display functions for the analyzer. System power is supplied from a universal power supply module designe[...]

2-6 2 Operational Theory Model 3300 PA Teledyne Analytical Instruments In the presence of oxygen the cell generates a current. This current flows through an internal thermistor compensation network. The output of the sensor is converted to voltage in the millivolt range. This output is fed to a voltage amplifier. The internal thermistor network pro[...]

3-1 Percent Oxygen Analyzer Installation 3 Teledyne Analytical Instruments Installation of the analyzer includes: 1. Unpacking the system. 2. Mounting the Control Unit to a 19" Rack. 3. Installing the Micro-Fuel Cell. 4. Making the electrical connections. 5. Making the gas connections. 6. Testing the installation. CAUTIONS: Read this chapter i[...]

3 Installation Model 3300 PA 3-2 Teledyne Analytical Instruments 3 . 2 Location and Mounting 3.2.1 Control Unit Installation The 3300PA Control Unit is designed to be rack mounted in a general purpose, indoor area, away from moisture and the elements. The unit should be installed at viewing level in a sheltered area. Refer to the Outline diagram D-[...]

3-3 Percent Oxygen Analyzer Installation 3 Teledyne Analytical Instruments Primary Input Power: The power cord receptacle, fuse block and Power switch are located in the same assembly. A 6-foot, standard AC power cord is supplied with the Control Unit. Insert the female plug end of the power cord into the power cord receptacle. The universal power [...]

3 Installation Model 3300 PA 3-4 Teledyne Analytical Instruments Figure 3-2: Contact ID for FAILSAFE Relay Operation The specific descriptions for each type of alarm are as follows: Alarm #1 Programmable as high or low alarm. Can be set any- where between 0 and 25 %. Alarm #2 Programmable as high or low alarm. Can be set any- where from 0 to 25 %. [...]

3-5 Percent Oxygen Analyzer Installation 3 Teledyne Analytical Instruments atmospheric pressure. Restricting the sample vent line will result in pressur- izing the sensor and altering the O 2 reading. The pressure required will depend on the sampling system. When venting into a constant pressure, such as the atmosphere, controlling input pressure i[...]

3 Installation Model 3300 PA 3-6 Teledyne Analytical Instruments pump by-pass valve to limit the maximum flow rate to full scale on the flowmeter with the flowmeter valve fully open. Adjust the analyzer flow control valve (flowmeter valve) to a flow-rate of approximately 2 SCFH). Select Span and verify that the span and Sample gas are at different [...]

Percent Oxygen Analyzer Operation 4 4-1 Teledyne Analytical Instruments Operation 4. 1 Introduction Once the analyzer has been mounted, the gas lines connected and the electrical connections made, the Analyzer can be configured for your appli- cation. This involves setting the system parameters: • Defining the user selectable analysis ranges. •[...]

4 Operation Model 3300 PA 4-2 Teledyne Analytical Instruments 4 . 2 Using the Function and Data Entry Buttons When no buttons on the Analyzer are being pressed, the instrument is in the Analyze mode. It is monitoring the percent of oxygen in the sample gas that is flowing through the Remote Probe. When one of the Function Buttons is being pressed, [...]

Percent Oxygen Analyzer Operation 4 4-3 Teledyne Analytical Instruments 4.3.1 H I Range Setting the HI Range fullscale value defines the LEAST sensitive analysis range to be used. To set the HI Range: 1. Press the SET HI RANGE Function button once. 2. Immediately (within 5 seconds) press either the ∆ or ∇ button to raise or lower the displayed [...]

4 Operation Model 3300 PA 4-4 Teledyne Analytical Instruments until the display reads the desired percent concentration. (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration). After setting the value wait for the unit to time out of this mode (ap- proximately 5 seconds) and return to[...]

Percent Oxygen Analyzer Operation 4 4-5 Teledyne Analytical Instruments 4 . 5 Selecting a Fixed Rang e or A utoranging The Model 3300PA can operate in fixed high, fixed low, or autoranging mode. To change modes: 1. Press and then release the SET HI RANGE and the SET LO RANGE buttons simultaneously. 2. Immediately (within 5 seconds) press either the[...]

4 Operation Model 3300 PA 4-6 Teledyne Analytical Instruments Note: When you stop pressing the UP/DOWN keys, the rapid flashing will cease and the new span value will be acquired by the analyzer after five seconds. The alarms will only be nonresponsive for 60 seconds. This time- frame allows you to reintroduce sample gas into the analyzer. 5. Immed[...]

5-1 Percent Oxygen Analyzer Maintenance 5 Teledyne Analytical Instruments Maintenance Aside from normal cleaning and checking for leaks at the gas connections, the Model 3300PA should not require any maintenance beyond replacement of expended Micro-Fuel Cells, and perhaps a blown fuse. Routine maintenance includes occasional recalibration, as descr[...]

5-2 5 Maintenance Model 3300 PA Teledyne Analytical Instruments fuse holder will slide out. There are two fuses in use and are visible in the clip. 4. Remove the bad fuse and replace it with a 5x20mm 0.5 A, 250 VAC, IEC time lag (T) fuse (P /N F1128). 5. Replace the fuse holder into its receptacle, pushing in firmly until it clicks. 5 . 2 Sensor In[...]

5-3 Percent Oxygen Analyzer Maintenance 5 Teledyne Analytical Instruments ted to enter, cell-life will be compromised. WARNING: The sensor used in the Model 3300PA uses electrolytes which contain substances that are extremely harmful if touched, swallowed, or inhaled. Avoid contact with ANY fluid or powder in or around the unit. What may appear to [...]

5-4 5 Maintenance Model 3300 PA Teledyne Analytical Instruments CAUTION: D o not scratch, puncture, or damage the sensing membrane of the Micro-Fuel Cell sensor. Damage to the membrane will require replacement of the sensor. 1. Disconnect the Power Source from the Unit. 2. Remove the new Micro-Fuel Cell from its protective bag, being careful not to[...]

A-1 Percent Oxygen Analyzer Appendix Teledyne Analytical Instruments Appendix A. 1 Specifications Ranges : 0-3 % and 0-10 % oxygen (Standard Ranges), and 0-25 % (nominal) Calibration Range. User selectable % Ranges can be set between 1% and 25 % oxygen (optional 100% range). Signal Output : Voltage: 0 – 10 V dc, negative ground Current: 4-20 mA, [...]

A-2 Appendix Model 3300 PA Teledyne Analytical Instruments A . 2 Spare P ar ts List QTY. P/N DESCRIPTION 1 C-65220E PC Board, Main 1 C-65220F PC Board, Main for 0-100% range. 1 C-64586C PC Board, Power Supply, AC Version 1 C-44611-I-22 Micro-Fuel Cell, I-22 2 F-1128 Fuse (AC), ½ A, 250 VAC, IEC Type T 1 F-274 Flowmeter 0.3-3.0 SCFH IMPORTANT: Orde[...]

A-3 Percent Oxygen Analyzer Appendix Teledyne Analytical Instruments A . 3 Reference Drawing D-69127 Final Assembly (and interconnection diagram) D-69220 Outline Diagram A.4 Miscellaneous The symbol: ~ is used on the rear panel of the model 3300PA to signify volts alternating current (V ac). NOTE: The MSDS on this material is available upon request[...]

A-4 Appendix Model 3300 PA Teledyne Analytical Instruments[...]