Teledyne 3010TB User Manual

Trace Oxygen Analyzer

OPERATING INSTRUCTIONS

Model 3010TB

Trace Oxygen Analyzer

Bulkhead Mount Control Unit, PN D-66190A*

NEC Type Analysis Unit, PN D-65478*

DANGER

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 TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED. ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE

CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/ MANAGER.

Teledyne Analytical Instruments

P/N M62927

11/24/04

ECO: #03-0126

Model 3010TB

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 computer language in whole or in part, in any form or by any means, whether it be electronic, mechanical, magnetic, optical, manual, or otherwise, without the prior written consent of Teledyne Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 91749-

1580.

Warranty

This equipment is sold subject to the mutual agreement that it is warranted by us free from defects of material and of construction, and that our liability shall be limited to replacing or repairing at our factory (without charge, except for transportation), or at customer plant at our option, any material or construction in which defects become apparent within one year from the date of shipment, except in cases where quotations or acknowledgements provide for a shorter period. Components manufactured by others bear the warranty of their manufacturer. This warranty does not cover defects caused by wear, accident, misuse, neglect or repairs other than those performed by Teledyne or an authorized service center. We assume no liability for direct or indirect damages of any kind and the purchaser by the acceptance of the equipment will assume all liability for any damage which may result from its use or misuse.

We reserve the right to employ any suitable material in the manufacture of our apparatus, and to make any alterations in the dimensions, shape or weight of any parts, in so far as such alterations do not adversely affect our warranty.

Important Notice

This instrument provides measurement readings to its user, and serves as a tool by which valuable data can be gathered. The information provided by the instrument may assist the user in eliminating potential hazards caused by his process; however, it is essential that all personnel involved in the use of the instrument or its interface, with the process being measured, be properly trained in the process itself, as well as all instrumentation related to it.

The safety of personnel is ultimately the responsibility of those who control process conditions. While this instrument may be able to provide early warning of imminent danger, it has no control over process conditions, and it can be misused. In particular, any alarm or control systems installed must be tested and understood, both as to how they operate and as to how they can be defeated. Any safeguards required such as locks, labels, or redundancy, must be provided by the user or specifically requested of Teledyne at the time the order is placed.

Therefore, the purchaser must be aware of the hazardous process conditions. The purchaser is responsible for the training of personnel, for providing hazard warning methods and instrumentation per the appropriate standards, and for ensuring that hazard warning devices and instrumentation are maintained and operated properly.

Analytical Instruments, the manufacturer of this instrument, cannot accept responsibility for conditions beyond its knowledge and control. No statement expressed or implied by this document or any information disseminated by the manufacturer or its agents, is to be construed as a warranty of adequate safety control under the user’s process

conditions.

Teledyne Analytical Instruments

Trace Oxygen Analyzer

Table of Contents

Specific Model Information................................. iv

Preface................................................................v

Part I: Control Unit, Model TB ...............Part I: 1-1

Part II: Analysis Unit, Model T..............Part II: 1-1

Appendix ......................................................... A-1

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iii

Model 3010TB

Specific Model Information

The instrument for which this manual was supplied may incorporate one or more options not supplied in the standard instrument. Commonly available options are listed below, with check boxes. Any that are incorporated in the instrument for which this manual was supplied are indicated by a check mark in the box.

Instrument Serial Number: __________________________

The instrument with the above serial number has the following Options:

o 3010TB-C Three gas inputs, for sample, zero and span gases, with

three solenoid-actuated gas-flow control valves built in. Valves are automatically synchronized to the analyzer's electronic control sequences.

o 3010TB–F Built-in flame arresters for Groups C and D service. o 3010TB–G Built-in flame arresters for Groups C and D service, plus

gas-control valves as in –C option, above.

o 3010TB–H Built-in flame arresters for Group B (hydrogen) service. o 3010TB–I Built-in flame arresters for Group B (hydrogen) service,

plus gas-control valves as in –C option, above.

o Cell Class* ____________________ (L-2C standard).

Enter Class Designation

* See Part II, Chapter 2 and/or any addendum that may be

attached to this manual for cell specifications.

Teledyne Analytical Instruments

Trace Oxygen Analyzer

Preface

Overview

The Analytical Instruments Model 3010TB Trace Oxygen Analyzer is a versatile microprocessor-based instrument for detecting parts-per-million (ppm) levels of oxygen in a variety of background gases. It is a “split architecture” instrument. This means that a general purpose Control Unit, designed for nonhazardous areas only, remotely controls a specially designed Analysis Unit, or remote probe, that can operate in a hazardous area.

Part I of this manual covers the Model 3010TB General Purpose NEMA 4 Bulkhead mount Control Unit only. This Control Unit is for outdoor/indoor use in a nonhazardous environment. The Analysis Units (or Remote Probes) it controls, can be designed for a variety of hazardous environments. Part II of this manual covers the 3010T Analysis Unit.

Typical Applications

A few typical applications of the Model 3010TB are:

• Monitoring inert gas blanketing

• Air separation and liquefaction

• Chemical reaction monitoring

• Semiconductor manufacturing

• Petrochemical process control

• Quality assurance

• Gas analysis certification.

Teledyne Analytical Instruments

Model 3010TB

Model and Part Number Designations

The part numbers are the most specific identification. When using this manual for operation, maintenance, or ordering parts, check the part numbers on your Instruments to be sure of a match. Where an underscore (_) appears in a model number, the unit has more than one application. For example, 3010T_C means that the same unit is part of the 3010TAC and the 3010TBC series and consists of two sections; Control Unit and Remote Analysis or Sensor Probe.

3010TA: NEC Type Trace Oxygen Analyzer with flush mount

Control Unit, PN D-64596A and a 3010T Explosion Proof Analysis Unit, PN D-65478.

3010PA: NEC Type Percent Oxygen Analyzer with flush mount

Control Unit, PN D-64596B or C and 3010P Explosion Proof Analysis Unit, PN D-65479.

3010TB: NEC type Trace Oxygen Analyzer with bulkhead mount

Control Unit, PN D-66190A, and a 3010T Explosion Proof Analysis Unit, PN D-65478.

3010PB: NEC type Percent Oxygen Analyzer with bulkhead mount

Control Unit, PN D-66190 B or C, and a 3010T Explosion Proof Analysis Unit, PN D-65479.

3010TAC: CENELEC type Trace Oxygen Analyzer with flush mount

Control Unit, PN D-66192A, and a 3010T_C Remote Sensor, PN D-66193.

3010PAC: CENELEC type Percent Oxygen Analyzer with flush mount

Control Unit, PN D-66192 B or C, and a 3010P_C Remote Sensor, PN D-66191.

3010TBC: CENELEC type Trace Oxygen Analyzer with bulkhead

mount Control Unit, PN D-66194A, and a 3010T_C Remote Sensor, PN D-66193.

3010PBC: CENELEC type Percent Oxygen Analyzer with bulkhead

mount Control Unit, PN D-66194 Bor C, and a 3010P_C Remote Sensor, PN D-66191.

Options: See Specific Model Information sheet, on page iv for details.

Teledyne Analytical Instruments

Trace Oxygen Analyzer

Main Features of the Analyzer

The Model 3010TB series Oxygen Analyzers are sophisticated yet

simple to use. The main features of these analyzers include:

• A 2-line alphanumeric display screen, driven by microprocessor electronics, that continuously prompts and informs the operator.

• High resolution, accurate readings of oxygen content: from low ppm levels through 25%. Large, bright, meter readout.

• Stainless steel cell block is standard equipment.

• Advance design Micro-Fuel Cell sensor, Specially designed model for trace analysis, has a one year warranty and an expected lifetime of two years.

• Versatile analysis over a wide range of applications.

• Microprocessor based electronics: 8-bit CMOS microprocessor with 32 kB RAM and 128 kB ROM.

• Three user definable output ranges allow best match to users process and equipment: 0-10 ppm through 0-250,000 ppm for trace analysis.

• Air-calibration range for convenient spanning at 20.9 %.

• Auto Ranging allows analyzer to automatically select the proper preset range for a given measurement. Manual override allows the user to lock onto a specific range of interest.

• Two adjustable concentration alarms and a system failure alarm.

• Self-diagnostic testing, at startup and on demand, with continuous power-supply monitoring.

• Two way RFI protection.

• RS-232 serial digital port for use with a computer or other digital communications device.

• Analog outputs for Concentration and Analysis Range: 0–1 V dc standard. Isolated 4–20 mA dc standard.

• Compact and versatile design: flush-panel, rack-mountable, or bulkhead mounted Control Units available.

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vii

Model 3010TB

viii

Teledyne Analytical Instruments

Part I: Control Unit

OPERATING INSTRUCTIONS

Model 3010TB

Oxygen Analyzer

Part I: Control Unit

NEMA 4 Bulkhead Mount

Part Numbers: D-66190A

Teledyne Analytical Instruments

Part I: i

Model 3010TB Oxygen Analyzer

Table of Contents

1 Introduction

1.1 Overview........................................................................ 1-1

1.2 Control Unit Inner Control Panel .................................... 1-1

1.3 Recognizing Difference Between LCD & VFD............... 1-3

1.4 Control Unit Interface P anel........................................... 1-4

2 Operational Theory

2.1 Introduction .................................................................... 2-1

2.2 Electronics and Signal Processing ................................ 2-1

3 Installation

3.1 Unpacking the Control Unit............................................ 3-1

3.2 Mounting the Control Unit .............................................. 3-1

3.3 Electrical Connections ................................................... 3-3

3.4 Testing the System......................................................... 3-12

4 Operation

4.1 Introduction .................................................................... 4-1

4.2 Using the Data Entry and Function Buttons ................... 4-2

4.3 The System Function ..................................................... 4-3

4.3.1 Tracking the O2 Readings during Calibration ......... 4-4

4.3.2 Setting up an Auto-Cal........................................... 4-5

4.3.3 Passw ord Protection.............................................. 4-5

4.3.3.1 Entering the Password...................... ... .......... 4-6

4.3.3.2 Installing or Changing the Password ............. 4-7

4.3.4 Logout.................................................................... 4-8

4.3.5 System Self-Diagnostic Test .................................. 4-9

4.3.6 Version Screen ...................................................... 4-10

4.3.7 Showing Negative Oxygen Readings.................... 4-10

4.4 The Zero and Span Functions ....................................... 4-10

4.4.1 Zero Cal ................................................................. 4-11

ii: Part I

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Part I: Control Unit

4.4.1.1 Auto Mode Zeroing ........................................ 4-11

4.4.1.2 Manual Mode Zeroing.................................... 4-12

4.4.1.3 Cell Failure .................................................... 4-13

4.4.2 Span Cal................................................................ 4-14

4.4.2.1 Auto Mode Spanning ..................................... 4-14

4.4.2.2 Manual Mode Spanning................................. 4-16

4.4.3 Span Failure .......................................................... 4-16

4.5 The Alarms Function...................................................... 4-15

4.6 The Range Function ...................................................... 4-18

4.6.1 Setting the Analog Output Ranges......................... 4-19

4.6.2 Fixed Range Analysis ............................................ 4-20

4.7 The Analyze Function .................................................... 4-20

4.8 Signal Output ................................................................. 4-21

5 Maintenance

5.1 Fuse Replacement ......................................................... 5-1

5.2 System Self Diagnostic Test........................................... 5-2

5.3 Major Internal Components............................................ 5-3

5.4 Cleaning ........................................................................ 5-4

A Appendix

Model 3010TB Specifications ................................................ A-3

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Part I: iii

Model 3010TB Oxygen Analyzer

iv: Part I

Teledyne Analytical Instruments

Oxygen Analyzer Part I: Control Unit

Operational Theory

2.1 Introduction

The Model 3010TB Oxygen Analyzer Control Unit uses an 80C31 microcontroller with 32 kB of RAM and 128 kB of ROM to control all signal processing, input/output, and display functions for the Model 3010TB analyzer. (The sample system and Micro-Fuel Cell sensor are covered in Part II, Analysis Unit, in this manual.) System power is supplied from a universal power supply module designed to be compatible with any international power source.

2.2 Electronics and Signal Processing

All of the Analyzer electronics are located on Printed Circuit Board (PCB) assemblies inside the Control Unit chassis. The PCB locations are illustrated in section 5, Maintenance.

Refer to Figure 2-1, Block Diagram of the 3010TB CU Electronics:

In the presence of oxygen, the sensor (in the Analysis Unit) generates a current. A current to voltage amplifier (in the Control Unit) converts this current to a voltage.

The second stage amplifier amplifies the voltage. It also uses a signal from the thermistor (which is physically located in the Analysis Unit cell block) to provide temperature compensation for the sensor signal. The thermistor is a temperature dependent resistance that changes the gain of the amplifier in proportion to the temperature changes in the block. This thermistor signal compensates for the change in the cell output due to the temperature changes. The result is a signal that is temperature independent. The output from the second stage amplifier is sent to an 18-bit analog to digital converter controlled by the microprocessor.

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Part I: 2-1

2 Operational Theory Model 3010TB

Figure 2-1: Block Diagram of the 3010TB CU Electronics

2-2: Part I

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Oxygen Analyzer Part I: Control Unit

The digital concentration signal—along with input from the control panel—is processed by the microprocessor, and appropriate control signals are directed to the display, alarms and communications port as well as to the gas control valves in the Analysis Unit.

The same digital information is also sent to a 12 bit digital to analog converter that produces the 4-20 mA dc and the 0-1 V dc analog concentration signal outputs, and the analog range ID outputs.

The microprocessor monitors the power supply, and activates the system failure alarm if a malfunction is detected.

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Part I: 2-3

2 Operational Theory Model 3010TB

2-4: Part I

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Oxygen Analyzer Part I: Control Unit

Installation

Installation of Model 3010 Analyzers includes:

1. Unpacking, mounting, and interconnecting the Control Unit and the Analysis Unit

2. Making gas connections to the system

3. Making electrical connections to the system

4. Testing the system.

This chapter covers installation of the Control Unit. (Installation of the

Analysis Unit is covered in Part II of this manual.)

3.1 Unpacking the Control Unit

The analyzer is shipped with all the materials you need to install and prepare the system for operation. Carefully unpack the Control Unit and inspect it for damage. Immediately report any damage to the shipping agent.

3.2 Mounting the Control Unit

The Model 3010TB Control Unit is for indoor/outdoor use in a general purpose area. This Unit is NOT for any type of hazardous environments.

The standard model is designed for indoor/outdoor mounting. Figure 31 is an illustration of a Model 3010TB standard Control Unit front panel and mounting brackets located-two at the top and two at the bottom of the units frame. Drawing number D-64808, at the back of this manual, contains an outline mounting diagram.

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Part I: 3-1

3 Installation Model 3010TB

NPT Fittings

supplied by

customer

Viewing Window

0.0 % Anlz AL -1

AC POWER IN

50/60 HZ

100-240V

3/4" NP T

Outer Door

Latch

ALARM OUTPUTS

DIGITAL INPUT SPAN ZERO

CAL. CONTACT RANGE

ID CONTACTS RS-232

SOLENOID RETURN

ANALOG O U TPUT S

REMOTE SENSOR

NET WORK

All operator controls are mounted on the inner control panel, which is hinged on the left edge and doubles as a door to provide access to the internal components of the instrument. The door will swing open when the button of the latch is pressed all the way in with a narrow gauge tool (less than 0.18 inch wide), such as a small hex wrench or screwdriver Allow

3/4" NP T

1" NPT

Figure 3-1: Front Panel of the Model 3010 Control Unit

3-2: Part I

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Oxygen Analyzer Part I: Control Unit

clearance for the door to open in a 90-degree arc of radius 11.75 inches. See Figure 3-2.

11.75

Figure 3-2: Required Front Door Clearance

3.3 Electrical Connections

Figure 3-3 shows the Control Unit interface panel. Connections for power, communications, and both digital and analog signal outputs are described in the following paragraphs. Wire size and maximum length data appear in the Drawings at the back of this manual.

Figure 3-3: Interface Panel of the Model 3010 Control Unit

For safe connections, ensure that no uninsulated wire extends outside of the terminal blocks that are attached to. Stripped wire ends must insert completely into terminal blocks. No uninsulated wiring should be able to come in contact with fingers, tools or clothing during normal operation.

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3 Installation Model 3010TB

Primary Input Power: The universal power supply requires a 100-

240V ac, 50/60 Hz power source. See Figure 3-4 for detailed connections.

DANGER: Power is applied to the instrument's circuitry as

long as the instrument is connected to the power source. The standby function switches power on or off to the displays and outputs only.

Hot Ground

Turn cw to hold ccw to loosen w ir e.

eutral

Insert wire here.

Figure 3-4: Primary Input Power Connections

Fuse Installation: The fuse holders accept 5 x 20 mm, 1.0 A, T

type (slow blow) fuses. Fuses are not installed at the factory. Be sure to install the proper fuse as part of installation (See Fuse Replacement in chapter 5, maintenance.)

Analog Outputs: There are eight DC output signal connectors on

the ANALOG OUTPUTS terminal block. There are two connectors per output with the polarity noted. See Figure 3-5.

The outputs are:

0–1 V dc % of Range: Voltage rises linearly with increasing oxygen, from

0 V at 0% to 1 V at 100%. (Full scale = 100% programmed range.)

0–1 V dc Range ID: 0.25 V = Low Range, 0.5 V = Medium Range,

0.75 V = High Range, 1 V = Air Cal Range.

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Oxygen Analyzer Part I: Control Unit

4–20 mA dc % Range: (-M Option) Current increases linearly with increas-

ing oxygen, from 4 mA at 0% to 20 mA at full scale 100%. (Full scale = 100% of programmed range.)

4–20 mA dc Range ID: (-M Option) 8 mA = Low Range, 12 mA = Me-

dium Range, 16 mA = High Range, 20 mA = Air Cal Range.

Figure 3-5: Analog Output Connections

Examples:

The analog output signal has a voltage which depends on the oxygen concentration AND the currently activated analysis range. To relate the signal output to the actual concentration, it is necessary to know what range the instrument is currently on, especially when the analyzer is in the autoranging mode.

The signaloutput for concentration is linear over currently selected analysis range. For example, if the analyzer is set on a range that was defined as )-10 % O2, then the output would be as shown in Table 3-1.

Table 3-1: Analog Concentration Output-Examples

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3 Installation Model 3010TB

Voltage Signal Current Signal

%O2 Output (V dc) Output (mA dc)

0 0.0 4.0 1 0.1 5.6 2 0.2 7.2 3 0.3 8.8 4 0.4 10.4 5 0.5 12.0 6 0.6 13.6 7 0.7 15.2 8 0.8 16.8 9 0.9 18.4

10 1.0 20.0

To provide an indication of the range, a second pair of analog output terminals are used. They generate a steady preset voltage (or current when using the current outputs) to represent a particular range. Table 3-2 gives the range ID output for each analysis range.

Table 3-2: Analog Range ID Output - Example

Range Voltage (V) Current (mA)

LO 0.25 8 MED 0.50 12 HI 0.75 16 CAL (0-25%) 1.00 20

Alarm Relays:

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Oxygen Analyzer Part I: Control Unit

There are three alarm-circuit connectors on the alarm relays block (under RELAY OUTPUTS) for making connections to internal alarm relay contacts. Each provides a set of Form C contacts for each type of alarm. Each has both normally open and normally closed contact connections. The contact connections are indicated by diagrams on the rear panel. They are capable of switching up to 3 ampers at 250 V AC into a resistive load (Figure 3-6).

Figure 3-5: Types of Relay Contacts

The connectors are:

Threshold Alarm 1: • Can be configured as high (actuates when

concentration is above threshold), or low (actuates when concentration is below thresh old).

• Can be configured as fail-safe or non-fail-safe.

• Can be configured as latching or nonlatching.

• Can be configured out (defeated).

Threshold Alarm 2: • Can be configured as high (actuates when concen-

tration is above threshold), or low (actuates when concentration is below threshold).

• Can be configured as fail-safe or non-fail-safe.

• Can be configured as latching or nonlatching.

• Can be configured out (defeated).

System Alarm: Actuates when DC power supplied to circuits is

unacceptable in one or more parameters. Permanently configured as fail-safe and latching. Cannot be defeated. Actuates if self test fails.

To reset a System Alarm during installation, disconnect power to the instrument and then reconnect it

Further detail can be found in chapter 4, section 4-5.

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3 Installation Model 3010TB

Digital Remote Cal Inputs Remote Zero and Span Inputs: The REMOTE SPAN and RE-

MOTE ZERO inputs are on the DIGITAL INPUT terminal block. They accept 0 V (OFF) or 24 V dc (ON) for remote control of calibration (See Remote Calibration Protocol below.)

Zero: Floating input. 5 to 24 V input across the + and – terminals

puts the analyzer into the ZERO mode. Either side may be grounded at the source of the signal. 0 to 1 volt across the terminals allows ZERO mode to terminate when done. A synchronous signal must open and close the external zero valve appropriately. See Remote Probe Connector at end of section 3.3. (With the -C option, the internal valves automatically operate synchronously).

Span: Floating input. 5 to 24 V input across the + and – terminals

puts the analyzer into the SPAN mode. Either side may be grounded at the source of the signal. 0 to 1 volt across the terminals allows SPAN mode to terminate when done. A synchronous signal must open and close the external span valve appropriately. See Remote Probe Connector at end of section 3.3. (With the -C option, the internal valves automatically operate synchronously.)

Cal Contact: This relay contact is closed while analyzer is spanning

and/or zeroing. (See Remote Calibration Protocol below.)

Remote Calibration Protocol: To properly time the Digital Remote

Cal Inputs to the Model 3010TB Analyzer, the customer's controller must monitor the Cal Relay Contact.

When the contact is OPEN, the analyzer is analyzing, the Remote Cal

Inputs are being polled, and a zero or span command can be sent.

When the contact is CLOSED, the analyzer is already calibrating. It

will ignore your request to calibrate, and it will not remember that request.

Once a zero or span command is sent, and acknowledged (contact closes), release it. If the command is continued until after the zero or span is complete, the calibration will repeat and the Cal Relay Contact (CRC) will close again.

For example:

1) Test the CRC. When the CRC is open, Send a zero command until the CRC closes (The CRC will quickly close.)

2) When the CRC closes, remove the zero command.

3) When CRC opens again, send a span command until the CRC closes. (The CRC will quickly close.)

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Oxygen Analyzer Part I: Control Unit

4) When the CRC closes, remove the span command.

When CRC opens again, zero and span are done, and the sample is

being analyzed.

Note: The Remote Probe connector (paragraph 3.3) provides signals

to ensure that the zero and span gas valves will be controlled synchronously. If you have the -C Internal valve option which includes additional zero and span gas inputs - the 3010TB automatically regulates the zero, span and sample gas flow.

Range ID Relays: Four dedicated RANGE ID CONTACT relays .

The first three ranges are assigned to relays in ascending order—Low range is assigned to RANGE 1 ID, Medium range is assigned to RANGE 2 ID, and High range is assigned to RANGE 3 ID. RANGE 4 ID is reserved for the Air Cal Range (25%).

Network I/O: A serial digital input/output for local network protocol.

At this printing, this port is not yet functional. It is to be used in future versions of the instrument.

RS-232 Port: The digital signal output is a standard RS-232 serial

communications port used to connect the analyzer to a computer, terminal, or other digital device. The pinouts are listed in Table 3-3.

Table 3-3: RS-232 Signals

RS-232 Sig RS-232 Pin Purpose

DCD 1 Data Carrier Detect RD 2 Received Data TD 3 Transmitted Data DTR 4 Data Terminal Ready COM 5 Common DSR 6 Data Set Ready RTS 7 Request to Send CTS 8 Clear to Send RI 9 Ring Indicator

The data sent is status information, in digital form, updated every two

seconds. Status is reported in the following order:

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Part I: 3-9

3 Installation Model 3010TB

• The concentration in percent

• The range is use (HI< MED< LO)

• The span of the range 0-100%, etc)

• Which alarm - if any - are disabled (AL-x DISABLED)

• Which alarms - if any - are tripped (AL-x ON)

Each status output is followed by a carriage return and line feed.

Three input functions using RS-232 have been implemented to date.

They are described in Table 3-4.

Table 3-4: Commands via RS-232 Input

Command Description as<enter> Immediately starts an autospan. az<enter> Immediately starts an autozero. st<enter> Toggling input. Stops/Starts any status message output

from the RS-232, Until st<enter> is sent again.

The RS-232 protocol allows some flexibility in its implementation.

Table 3-5 lists certain RS-232 values that are required by the 3010TB.

Table 3-5: Required RS-232 Options

Parameter Setting

Baud 2400

Byte 8 bits

Parity none

Stop Bits 1

Message Interval 2 seconds

Remote Sensor and Solenoid Valves: The 3010TB is a single-chassis

instrument. However, the REMOTE SENSOR and SOLENOID RETURN connectors are provided for use with a remote sensor and/or sampling system, if desired. See Figure 3-7 and 3-8.

3-10: Part I

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Oxygen Analyzer Part I: Control Unit

Thermistor

Block

Sensor

Block

Sample In

Span In

Zero In

Exhaust

Figure 3-8: Remote Solenoid Return Connector Pinouts

Thermistor 1

Thermistor 2 Sensor Return (-)

Figure 3-7 Remote Sensor Connector Pinouts

Sensor Hot (+)

+15 V dc

Sample (return)

+15 V dc

Span (return)

+15 V dc Zero (return)

+15 V dc

Exhaust (return)

Sensor Signal 8 Sensor Signal 2

Sensor Signal 1

Sensor Signal 7

Solenoid Valve 3 Solenoid Valve 4

Solenoid Valve 9

Solenoid Valve 10

Solenoid Valve 5

Solenoid Valve 6

Solenoid Valve n/a Solenoid Valve n/a

The voltage from the solenoid outputs is nominally 0 V for the OFF and 15 V dc for the ON conditions. The maximum combined current that can be pulled from these output lines is 100 mA. (If two lines are ON at the same time, each must be limited to 50 mA, etc.) If more current and/or a different voltage is required, use relays, power amplifiers, or other matching circuitry to provide the actual driving current.

Note that each individual line has a series FET with a nominal ON resistance of 5 ohms (9 ohms worst case). This can limit the obtainable voltage, depending on the load impedance applied. See Figure 3-9.

Figure 3-9: FET Series Resistance

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3 Installation Model 3010TB

3.4 Testing the System

After The Control Unit and the Analysis Unit are both installed and

interconnected, and the system gas and electrical connections are complete, the system is ready to test. Before plugging either of the units into their respective power sources:

• Check the integrity and accuracy of the gas connections. Make sure there are no leaks.

• Check the integrity and accuracy of all electrical connections. Make sure there are no exposed conductors

• Check that sample pressure is between 3 and 40 psig, according to the requirements of your process.

Power up the system, and test it by performing the following

operations:

1. Repeat the Self-Diagnostic Test as described in chapter 4, section

4.3.5.

3-12: Part I

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Oxygen Analyzer Part I: Control Unit

Operation

4.1 Introduction

Once the analyzer has been installed, configure it for your process. To

do this you can:

• Set system parameters—

• Specify a password, if desired, requiring operator to log in.

• Establish and start an automatic calibration cycle, if desired.

• Calibrate the instrument.

• Define the three user selectable analysis ranges. Then choose autoranging or select a fixed range of analysis, as required.

• Set alarm setpoints, and modes (latching, failsafe, etc).

Before configuration these default values are in effect:

PARAMETER DEFAULT LO Range 100 ppm

MED Range 1000 ppm HI Range 10,000 ppm Auto Ranging ON Alarm Relays 1000 ppm

(Defeated, HI, Not failsafe, Not latching)

Span 000008.00 ppm

(Auto, every 0 days at 0 hours)

Zero (Auto, every 0 days at 0 hours).

If you choose not to use password protection, the default password is

automatically displayed on the password screen when you start up, and you simply press Enter for access to all functions of the analyzer.

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Part I: 4-1

4 Operation Model 3010TB

4.2 Using the Data Entry and Function Buttons

Data Entry Buttons: The < > arrow buttons select options from the

menu currently being displayed on the VFD screen. The selected option blinks.

When the selected option includes a modifiable item, the

buttons can be used to increment or decrement that modifiable item.

The Enter button is used to accept any new entries on the VFD screen. The Escape button is used to abort any new entries on the VFD screen that are not yet accepted by use of the Enter button.

Figure 4-1 shows the hierarchy of functions available to the operator via the function buttons. The six function buttons on the analyzer are:

• Analyze. This is the normal operating mode. The analyzer

monitors the oxygen content of the sample, displays the concentration of oxygen, and warns of any alarm conditions.

• System. The system function consists of six subfunctions that

regulate the internal operations of the analyzer:

• Auto-Cal setup

• Password assignment

• Self -Test initiation

• Checking software version

• Logging out.

ΔΔ

Δ∇ arrow

ΔΔ

• Zero. Used to set up a zero calibration.

• Span. Used to set up a span calibration.

• Alarms. Used to set the alarm setpoints and determine whether

each alarm will be active or defeated, HI or LO acting, latching, and/or failsafe.

• Range. Used to set up three analysis ranges that can be switched

automatically with autoranging or used as individual fixed ranges.

Any function can be selected at any time by pressing the appropriate button (unless password restrictions apply). The order as presented in this manual is appropriate for an initial setup.

4-2: Part I

Teledyne Analytical Instruments

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