Teledyne 3010MB User Manual

Percent Paramagnetic Oxygen Analyzer

OPERATING INSTRUCTIONS

Model 3010MB

Percent Paramagnetic

Oxygen Analyzer

Bulkhead Mount Control Unit, PN D-71385

Bulkhead Mount Analysis Unit, PN D-71394

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 xxxxxx

12/21/99

ECO: #99-0000

i

Model 3010MB

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 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.

ii

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer

Table of Contents

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

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

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

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

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

Teledyne Analytical Instruments

iii

Model 3010MB

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: __________________________

.

iv

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer

Preface

Overview

The Analytical Instruments Model 3010MB Percent Paramagnetic
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.

Part I of this manual covers the Model 3010MB 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 3010M Analysis Unit.

Typical Applications

A few typical applications of the Model 3010MB 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

v

Model 3010MB

Main Features of the Analyzer

The Model 3010MB Percent Oxygen Analyzer is sophisticated yet

simple to use. The main features of the analyzer 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 %
levels through 100%. Large, bright, meter readout.

• Stainless steel sample system.

• 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 (from 0-5 % through 0-100
%) allow best match to users process and equipment.

• 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.

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

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

• Analog outputs for concentration and range identification.
(0-1 VDC standard, and isolated 4–20 mADC)

vi

Teledyne Analytical Instruments

Part I: Control Unit

OPERATING INSTRUCTIONS

Model 3010MB

Oxygen Analyzer

Part I: Control Unit

NEMA 4 Bulkhead Mount

Part Numbers: D-71385

Teledyne Analytical Instruments

Part I: i

Model 3010MB Percent Paramagnetic 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 Panel ........................................... 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

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

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

4.3.3 Password Protection .............................................. 4-5

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

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

System

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

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

Zero

Function ..................................................... 4-3

and

Span

Functions ....................................... 4-10

ii: Part I

Teledyne Analytical Instruments

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

4.6 The

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

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

4.7 The

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

5 Maintenance

Alarms
Range

Analyze

Function...................................................... 4-15

Function ...................................................... 4-18

Function.................................................... 4-20

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

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

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

A Appendix

Model 3010MB Specifications ............................................... A-1

Teledyne Analytical Instruments

Part I: iii

Model 3010MB Percent Paramagnetic Oxygen Analyzer

iv: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

Introduction

1.1 Overview

The Analytical Instruments Model 3010MB Analyzer Control Unit,
together with a 3010M Analysis Unit, is a versatile microprocessor-based
instrument for detecting percent amounts of oxygen in a variety of gases.

Part I, this part, of this manual covers the Model 3010MB series Gen­eral Purpose NEMA 4 Bulkhead mount Control Units. (The Analysis Unit is
covered in Part II of this manual.) The Control Unit and Analysis Unit is for
indoor/outdoor use in a nonhazardous environment only.

1.2 Control Unit Inner Control Panel

The standard 3010MB Control Unit is housed in a rugged NEMA 4
metal case with all remote controls and displays accessible from the inner
control panel. See Figure 1-1. The inner control panel has a digital meter, an
alphanumeric display, and thirteen buttons for operating the analyzer.

Teledyne Analytical Instruments

Part I: 1-1

1 Introduction Model 3010MB

Outer Door

(Open)

Teledy ne Analy tic al Ins trument

Viewing
Window

Outer Door

Latch

0.0 % Anlz
AL-1

3010MB Series

Paramagnetic Oxygen Analyze

Figure 1-1: Front of Unmounted Control Unit

Function Keys: Six touch-sensitive membrane switches are used to

change the specific function performed by the analyzer:

• Analyze Perform analysis for oxygen content of a sample gas.

• System Perform system-related tasks (described in detail in

chapter 4, Operation.).

• Span Span calibrate the analyzer.

1-2: Part I

• Zero Zero calibrate the analyzer.

• Alarms Set the alarm setpoints and attributes.

• Range Set up the 3 user definable ranges for the instrument.

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

Data Entry Keys: Six touch-sensitive membrane switches are used to
input data to the instrument via the alphanumeric VFD display:

• Left & Right Arrows Select between functions currently

displayed on the VFD screen.

• Up & Down Arrows Increment or decrement values of

functions currently displayed.

• Enter Moves VFD display on to the next screen in a series. If

none remains, returns to the

• Escape Moves VFD display back to the previous screen in a

series. If none remains, returns to the

Digital Meter Display: The meter display is a LED device that
produces large, bright, 7-segment numbers that are legible in any lighting. It
is accurate across all analysis ranges. The –MB model produce continuous
readout from 0-1% through 0-100%.

Analyze

screen.

Analyze

screen.

Alphanumeric Interface Screen: The backlit VFD screen is an easy­to-use interface between operator and analyzer. It displays values, options,
and messages that give the operator immediate feedback.

I/OI/O

I/O Power Button: The red I/O button switches the instrument power

I/OI/O

between I (ON) and O (a Keep-Alive state). In the O state, the instrument’s
circuitry is operating, but there are no displays or outputs.

CAUTION: The power must be disconnected to fully

disconnect power from the instrument. When
chassis is exposed or when access door is open
and power cable is connected, use extra care to
avoid contact with live electrical circuits .

Access Door: For access to the electronics and interface panel, the front
panel swings open when the latch in the upper right corner of the panel is
pressed all the way in with a narrow gauge tool. Accessing the main circuit
board and other electronics requires unfastening the rear panel screws and
sliding the unit out of the case.

1.3 Recognizing Difference Between LCD &
VFD

LCD has GREEN background with BLACK characters. VFD has
DARK background with GREEN characters. In the case of VFD - NO
CONTRAST ADJUSTMENT IS NEEDED.

Teledyne Analytical Instruments

Part I: 1-3

1 Introduction Model 3010MB

1.4 Control Unit Interface Panel

The Control Unit interface panel, shown in Figure 1-2, contains the
electrical terminal blocks for external inputs and outputs. The input/output
functions are described briefly here and in detail in the Installation chapter of
this manual.

1-4: Part I

Figure 1-2: Model 3010MB Rear Panel

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

• Power Connection AC power source, 100-240VAC, 50/60

Hz

• Analog Outputs 0-1 V dc concentration and 0-1 V dc

range ID. Isolated 4-20 mA dc and 4-20
mA dc range ID.

• Alarm Connections 2 concentration alarms and 1 system

alarm.

• RS-232 Port Serial digital concentration signal output

and control input.

• Remote Probe Provides all electrical interconnect to the

Analysis Unit or Remote Probe.

• Remote Span/Zero Digital inputs allow external control of

analyzer calibration.

• Calibration Contact To notify external equipment that

instrument is being calibrated and
readings are not monitoring sample.

• Range ID Contacts Four separate, dedicated, range relay

contacts. Low, Medium, High, Cal.

• Remote Probe Interfaces with an Analysis Unit or

Remote Probe (external sensor/sample
system).

• Network I/O Serial digital communications for local

network access. For future expansion.
Not implemented at this printing.

Note: If you require highly accurate Auto-Cal timing, use external

Auto-Cal control where possible. The internal clock in the
Model 3010MB is accurate to 2-3 %. Accordingly, internally
scheduled calibrations can vary 2-3 % per day.

Teledyne Analytical Instruments

Part I: 1-5

1 Introduction Model 3010MB

1-6: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

Operational Theory

2.1 Introduction

The Model 3010MB 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 3010MB
analyzer. (The sample system and Paramagnetic 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 3010MB 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. The output from the
second stage amplifier is sent to an 18-bit analog to digital converter con­trolled by the microprocessor.

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.

Teledyne Analytical Instruments

Part I: 2-1

2 Operational Theory Model 3010MB

t

v

M

o

Sensor*

*F rom
Analysis
Unit

To Analysis
Unit
Control V alv es

Current

to V oltage

Amplifier

Auto

Rang

Second

Stage

Amplifier

Power

Supply

System

F ailure

Alarm

A

Con

Pr

Display

Self Test
Signal

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

2-2: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

Installation

Installation of Model 3010MB 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 3010MB 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 3010MB standard Control Unit front panel
and mounting brackets located-two at the top and two at the bottom of the
units frame.

Teledyne Analytical Instruments

Part I: 3-1

3 Installation Model 3010MB

%

NPT Fitting

supplied by

customer

0.0

AL-1

AC POWER IN

50/60 HZ

100-240V

3/4" NPT

ALARM OUTPUTS

DIGITAL INPUT SPAN ZERO

CAL. CONTACT RANGE

ID CONTACTS RS-232

SOLENOID RETUR

ANALOG OUTPUTS

REMOTE SENS O R

NET WORK

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

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" NPT

1" NPT

1" NPT

3-2: Part I

Teledyne Analytical Instruments

Percent Paramagnetic 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 3010MB 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.

Teledyne Analytical Instruments

Part I: 3-3

3 Installation Model 3010MB

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
loos en wire.

Neutral

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.

3-4: Part I

Teledyne Analytical Instruments

Percent Paramagnetic 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.

Teledyne Analytical Instruments

Part I: 3-5

3 Installation Model 3010MB

Table 3-1: Analog Concentration Output-Examples

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

3-6: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

Alarm Relays:

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.

Teledyne Analytical Instruments

Part I: 3-7

3 Installation Model 3010MB

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
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.)

SPAN

mode. Either side may be

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 3010MB 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.)

3-8: Part I

Teledyne Analytical Instruments

Percent Paramagnetic 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
3010MB 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:

Teledyne Analytical Instruments

Part I: 3-9

3 Installation Model 3010MB

• 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 3010MB.

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 3010MB 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

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

CU

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 (-)

Sensor Hot (+)

Figure 3-7 Remote Sensor Connector Pinouts

+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

AU

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

Teledyne Analytical Instruments

Part I: 3-11

3 Installation Model 3010MB

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

Teledyne Analytical Instruments

Percent Paramagnetic 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 %

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

(Defeated, HI, Not failsafe, Not latching)

Span 000008.00 %

(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.

Teledyne Analytical Instruments

Part I: 4-1

4 Operation Model 3010MB

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

are not yet accepted by use of the

Figure 4-1 shows the hierarchy of functions available to the operator via

the function buttons. The six function buttons on the analyzer are:

button is used to abort any new entries on the VFD screen that

Enter

button.

•

Analyze.

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

•

System.

regulate the internal operations of the analyzer:

• Auto-Cal setup

• Password assignment

• Self -Test initiation

• Checking software version

• Logging out.

This is the normal operating mode. The analyzer

The system function consists of six subfunctions that

∆∆

∆∇ arrow

∆∆

•

Zero

. Used to set up a zero calibration.

•

Span.

•

Alarms.

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

•

Range.

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

Used to set up a span calibration.

Used to set the alarm setpoints and determine whether

Used to set up three analysis ranges that can be switched

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

S

ANALYZE

SYSTE

Perf orm Oxyg en

Analysis of

the Sample

SPAN

TRAK/HLD

Perf orm

Self-Diag nostic

Tes t

Initiate

Automatic

Calibratio

Set Password

Logout

Show Negative

Set Instrument

Span

ZERO

Set Instrument

Zero

ALARM

Set Alarm

Setpoints

Confrigure M ode

of Alarm

Operation

Figure 4-1: Hierarchy of Functions and Subfunctions

Each of these functions is described in greater detail in the following
procedures. The VFD screen text that accompanies each operation is repro­duced, at the appropriate point in the procedure, in a Monospaced type
style. Pushbutton names are printed in

Oblique

type.

4.3 The

The subfunctions of the

System

System

Function

function are described below. Specific

procedures for their use follow the descriptions:

Auto-CalAuto-Cal

•

Auto-Cal: Used to define an automatic calibration sequence

Auto-CalAuto-Cal

and/or start an Auto-Cal.

PSWDPSWD

•

PSWD: Security can be established by choosing a 5 digit

PSWDPSWD

password (PSWD) from the standard ASCII character set. (See

Installing or Changing a Password, below, for a table of ASCII
characters available.) Once a unique password is assigned and

Teledyne Analytical Instruments

Part I: 4-3

4 Operation Model 3010MB

activated, the operator MUST enter the UNIQUE password to
gain access to set-up functions which alter the instrument's
operation, such as setting the instrument span or zero setting,
adjusting the alarm setpoints, or defining analysis ranges.

After a password is assigned, the operator must log out to
activate it. Until then, anyone can continue to operate the
instrument without entering the new password.

Only one password can be defined. Before a unique password
is assigned, the system assigns TETAI by default. This allows
access to anyone. After a unique password is assigned, to defeat
the security, the password must be changed back to TETAI.

LogoutLogout

•

Logout: Logging out prevents an unauthorized tampering with

LogoutLogout

analyzer settings.

MoreMore

•

More: Select and enter More to get a new screen with additional

MoreMore

subfunctions listed.

SelfTestSelfTest

•

SelfTest: The instrument performs a self-diagnostic test to

SelfTestSelfTest

check the integrity of the power supply, output boards and
amplifiers.

VersionVersion

•

Version: Displays Manufacturer, Model, and Software Version

VersionVersion

of instrument.

Showing NegativeShowing Negative

•

Showing Negative: The operator selects whether display can

Showing NegativeShowing Negative

show negative readings or not.

TRAK/HLDTRAK/HLD

•

TRAK/HLD: The operator sets whether the instrument analog

TRAK/HLDTRAK/HLD

outputs track the concentration change during calibration and sets
a time delay for the concentration alarms after calibration

4.3.1 Tracking the Oxygen Readings during Calibration
and Alarm delay

The user has the option of setting the preferenc as to whether the analog
outputs track the display readings during calibration or not. To set the prefer­ence, press the System key once and the first System menu will appear in the
VFD display:

TRAK/HLD Auto-Cal
PSWD Logout More

TRAK/HLD should be blinking. To enter this system menu press the
Enter key once:

Output Sttng: TRACK
Alarm Dly: 10 min

4-4: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

Or

Output Sttng: HOLD
Alarm Dly: 10 min

In the first line, TRACK or HOLD should be blinking. The operator
can toggle between TRACK and HOLD with the Up or Down keys. When
TRACK is selected, the analog outputs (0-1 VDC and 4-20 ma) and the
range ID contacts will track the instrument readings during calibration (either
zero or span). TRACK is the factory default.

When HOLD is selected, the analog outputs (0-1 VDC and 4-20 ma)
and the range ID contacts will freeze on their last state before entering one of
the calibration modes. When the instrument returns to the Analyze mode,
either by a successful or an aborted calibration, there will be a three-minute
delay before the analog outputs and the range ID contacts start tracking
again.

The concentration alarms freeze on their last state before entering
calibration regardless of selecting HOLD or TRACK. But, when HOLD is
selected the concentration alarms will remain frozen for the time displayed in
the second line of the TRAK/HLD menu after the analyzer returns to the
Analyze mode.

The factory default is three minutes, but the delay time is program­mable. To adjust to delay time use the Left or Right arrow keys. When the
time displayed on the second line blinks, it can be adjusted by Pressing the
Up or Down keys to increase or decrease its value. The minimum delay is 1
minute, the maximum is 30.

This preference is stored in non-volatile memory so that it is recovered
if power is removed from the instrument.

4.3.2 Setting up an Auto-Cal

When the proper calibration gases are connected (see chapter 3, instal­lation), the Analyzer can cycle itself through a sequence of steps that auto-

matically zero and span the instrument.

Note: If you require highly accurate Auto-Cal timing, use external

Auto-Cal control where possible. The internal clock in the
Model 3010MB is accurate to 2-3 %. Accordingly, internally
scheduled calibrations can vary 2-3 % per day.

To setup an AutoCal cycle:

Choose

System

from the Function buttons. The VFD will display five

subfunctions.

Teledyne Analytical Instruments

Part I: 4-5

4 Operation Model 3010MB

TRAK/HLD AutoCal

PSWD Logout More

Use < > arrows to blink AutoCal, and press

Enter

. A new screen for

Span/Zero set appears.

Span OFF Nxt: 0d 0h

Zero OFF Nxt: 0d 0h

Press < > arrows to blink Span (or Zero), then press

Enter

again. (You

won’t be able to set OFF to ON if a zero interval is entered.) A Span

Every ... (or Zero Every ...) screen appears.

Span Every 0 d

Start 0 h from now

∆∆

Use

∆∇ arrows to set an interval value, then use < > arrows to move to

∆∆

the start-time value. Use

∆∆

∆∇ arrows to set a start-time value.

∆∆

To turn ON the Span and/or Zero cycles (to activate Auto-Cal): Press

System

again, choose AutoCal, and press

Enter

again. When the Span/

Zero values screen appears, use the < > arrows to blink the Span (or Zero)
OFF/ON field. Use

∆∆

∆∇ arrows to set the OFF/ON field to ON. You can

∆∆

now turn these fields ON because there is a nonzero span interval defined.

4.3.3 Password Protection

If a password is assigned, then setting the following system parameters

can be done only after the password is entered: span and zero settings,
alarm setpoints, analysis range definitions, switching between autoranging
and manual override, setting up an auto-cal, and assigning a new password.
However, the instrument can still be used for analysis or for initiating a self­test without entering the password.

If you have decided not to employ password security, use the default
password TETAI. This password will be displayed automatically by the
microprocessor. The operator just presses the Enter key to be allowed total
access to the instrument’s features.

NOTE: If you use password security, it is advisable to keep a copy of

the password in a separate, safe location.

4.3.3.1 Entering the Password

To install a new password or change a previously installed password,
you must key in and

ENTER

the old password first. If the default password

4-6: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

is in effect, pressing the

ENTER

button will enter the default TETAI pass-

word for you.

Press

System

to enter the

TRAK/HLD AutoCal

PSWD Logout More

System

mode.

Use the < > arrow keys to scroll the blinking over to PSWD, and press

Enter

to select the password function. Either the default TBEAI password or

AAAAA place holders for an existing password will appear on screen

depending on whether or not a password has been previously installed.

T E T A I

Enter PWD

or

A A A A A

Enter PWD

The screen prompts you to enter the current password. If you are not

using password protection, press

Enter

to accept TETAI as the default

password. If a password has been previously installed, enter the password
using the < > arrow keys to scroll back and forth between letters, and the
arrow keys to change the letters to the proper password. Press

Enter

to enter

the password.

∆∆

∆∇

∆∆

If the password is accepted, the screen will indicate that the password

restrictions have been removed and you have clearance to proceed.

PSWD Restrictions

Removed

In a few seconds, you will be given the opportunity to change this

password or keep it and go on.

Change Password?

<ENT>=Yes <ESC>=No

Press

Escape

to move on, or proceed as in Changing the Password,

below.

4.3.3.2 Installing or Changing the Password

If you want to install a password, or change an existing password,
proceed as above in Entering the Password. When you are given the oppor­tunity to change the password:

Change Password?

<ENT>=Yes <ESC>=No

Teledyne Analytical Instruments

Part I: 4-7

4 Operation Model 3010MB

Press

Enter

to change the password (either the default TETAI or the

previously assigned password), or press

Escape

to keep the existing pass-

word and move on.

If you chose

Enter

to change the password, the password assignment

screen appears.

T E T A I

<ENT> To Proceed

or

A A A A A

<ENT> To Proceed

Enter the password using the < > arrow keys to move back and forth

between the existing password letters, and the

∆∆

∆∇ arrow keys to change the

∆∆

letters to the new password. The full set of 94 characters available for pass­word use are shown in the table below.

Characters Available for Password Definition:

ABCDEFGHIJ

KLMNOPQRST

UVWXYZ[¥]^

_`abcdefgh

ijklmnopqr

stuvwxyz{|

} → !"#$%&'(

)*+'-./012

3456789:;<

=>?@

When you have finished typing the new password, press

Enter

. A
verification screen appears. The screen will prompt you to retype your
password for verification.

A A A A A

Retype PWD To Verify

Wait a moment. The entry screen will give you clearance to proceed.

A A A A A

<ENT> TO Proceed

Use the arrow keys to retype your password and press

Enter

when
finished. Your password will be stored in the microprocessor and the system
will immediately switch to the

Analyze

screen, and you now have access to

all instrument functions.

4-8: Part I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

If no alarms are tripped, the

Analyze

0.0 ppm AnlZ

Range: 0  100

screen appears as:

If an alarm is tripped, the second line will change to show which alarm

it is:

0.0 ppm Anlz

AL1

NOTE:If you previously logged off the system , you will now be

required to re-enter the password to gain access to Span,
Zero, Alarm, and Range functions.

4.3.4 Logout

The Logout function provides a convenient means of leaving the
analyzer in a password protected mode without having to shut the instrument
off. By entering Logout, you effectively log off the instrument leaving the
system protected against use until the password is reentered. To log out,
press the

System

button to enter the

System

function.

TRAK/HLD AutoCal

PSWD Logout More

Use the < > arrow keys to position the blinking over the Logout func-
tion, and press

Enter

to Log out. The screen will display the message:

Protected Until

Password Reentered

4.3.5 System Self-Diagnostic Test

The Model 3010MB has a built-in self-diagnostic testing routine. Pre­programmed signals are sent through the power supply, output board and
sensor circuit. The return signal is analyzed, and at the end of the test the
status of each function is displayed on the screen, either as OK or as a
number between 1 and 3. (See System Self Diagnostic Test in chapter 5 for
number code.)

Note: Remote Probe connector must be connected to the Analysis

Unit, or sensor circuit will not be properly checked.

The self diagnostics are run automatically by the analyzer whenever the
instrument is turned on, but the test can also be run by the operator at will.
To initiate a self diagnostic test during operation:

Teledyne Analytical Instruments

Part I: 4-9

4 Operation Model 3010MB

Press the

Use the < > arrow keys to blink More, then press

System

button to start the

TRAK/HLD AutoCal

PSWD Logout More

Version SelfTest

System

function.

Enter

.

Use the < > arrow keys again to move the blinking to the SelfTest

function. The screen will follow the running of the diagnostic.

RUNNING DIAGNOSTIC

Testing Preamp  83

During preamp testing there is a countdown in the lower right corner of

the screen. When the testing is complete, the results are displayed.

Power: OK Analog: OK

Preamp: 3

The module is functioning properly if it is followed by OK. A number
indicates a problem in a specific area of the instrument. Refer to chapter 5
Maintenance for number-code information. The results screen alternates for a
time with:

Press Any Key

To Continue...

Then the analyzer returns to the initial System screen.

4.3.6 Version Screen

Move the < > arrow key to More and press
blinking, press

Enter

. The screen displays the manufacturer, model, and

Enter

. With Version

software version information.

4.3.7 Showing Negative Oxygen Readings

For software version 1.4.4 or later, the instrument only displays oxygen
readings that are positive or zero. The instrument can be reconfigured to
show negative readings if sensor output drifts below zero. This situation
may arise after the instrument has been zeroed, as time progresses the sensor
may drift below the zero calibration setpoint.

To show negative oxygen readings on the display:

- Press the System key

4-10: Par t I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

TRAK/HLD Auto-Cal

PSWD Logout More

- Use the Right or Left arrow keys and select More. Press Enter.

Version Self-Test

Show_Negative=NO

- Use the Right or Left arrow keys and select

“Show_Negative=NO”.

- Use the Up or Down key to toggle from NO to YES.

- Press the Escape key twice to return to the analyze mode.

This preference is stored in non-volatile memory, so this configuration
is remembered after a power shutdown. If the instrument is cold started, it
will go back to default (not showingg negative oxygen readings).

4.4 The

Zeroing is not required in order to achieve the published
accuracy specification of this unit.

Zeroing will eliminate offset error contributed by sensor,
electronics, and internal and external sampling system and
improve performance beyond published specification lim­its.

The analyzer is calibrated using zero and span gases.

Any suitable oxygen-free gas can be used for zero gas as long as it is
known that it will not react adversely with the sample system.

Although the instrument can be spanned using air, a span gas with a
known oxygen concentration in the range of 70–90% of full scale of the
range of interest is recommended. Since the oxygen concentration in air is

20.9 % (209,000 ppm), the cell can take longer to recover if the instrument is
used for trace or less than 1% full scale oxygen analysis immediately
following calibration in air.

Connect the calibration gases to the analyzer according to the instruc­tions given in Section 3.4.1, Gas Connections, observing all the prescribed
precautions.

Zero

and

Span

Functions

Shut off the gas pressure before connecting it to the analyzer, and
be sure to limit the pressure to 40 psig or less when turning it back on.

Readjust the gas pressure into the analyzer until the flowrate (as read on
the Analysis Unit SLPM flowmeter) settles between 0.5 and 2.4 SLPM
(approximately 1-5 scfh).

Teledyne Analytical Instruments

Part I: 4-11

4 Operation Model 3010MB

If you are using password protection, you will need to enter your
password to gain access to either of these functions. Follow the instructions
in sections 4.3.3.2 or 4.3.3.3 to enter your password. Once you have gained
clearance to proceed, you can enter the

Zero

or

Span

function.

4.4.1 Zero Cal

The

Zero

button on the front panel is used to enter the zero calibration

function. Zero calibration can be performed in either the automatic or manual
mode. In the automatic mode, an internal algorithm compares consecutive
readings from the sensor to determine when the output is within the accept­able range for zero. In the manual mode, the operator determines when the
reading is within the acceptable range for zero. Make sure the zero gas is
connected to the instrument. If you get a CELL FAILURE message skip to
section 4.4.1.3.

4.4.1.1 Auto Mode Zeroing

Press

Zero

to enter the zero function mode. The screen allows you to

select whether the zero calibration is to be performed automatically or manu­ally. Use the ∆∇ arrow keys to toggle between AUTO and MAN zero
settling. Stop when AUTO appears, blinking, on the display.

Zero: Settling: AUTO

<ENT> To Begin

Press

Enter

to begin zeroing.

#### PPM Zero

Slope=#### ppm/s

The beginning zero level is shown in the upper left corner of the dis­play. As the zero reading settles, the screen displays and updates information
on Slope (unless the Slope starts within the acceptable zero range and does
not need to settle further).

Then, and whenever Slope is less than 0.08 for at least 3 minutes,
instead of Slope you will see a countdown: 5 Left, 4 Left, and so fourth.
These are five steps in the zeroing process that the system must complete,
AFTER settling, before it can go back to

Analyze

.

#### PPM Zero

4 Left=### ppm/s

The zeroing process will automatically conclude when the output is
within the acceptable range for a good zero. Then the analyzer automatically
returns to the

4-12: Par t I

Analyze

mode.

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

4.4.1.2 Manual Mode Zeroing

Press

Zero

to enter the

Zero

function. The screen that appears allows

you to select between automatic or manual zero calibration. Use the ∆∇ keys
to toggle between AUTO and MAN zero settling. Stop when MAN appears,
blinking, on the display.

Zero: Settling: Man

<ENT> To Begin

Press

Enter

to begin the zero calibration. After a few seconds the first
of five zeroing screens appears. The number in the upper left hand corner is
the first-stage zero offset. The microprocessor samples the output at a prede­termined rate. It calculates the differences between successive samplings and
displays the rate of change as Slope= a value in parts per million per second
(ppm/s).

#### ppm Zero

Slope=#### ppm/s

NOTE:It takes several seconds for the true

Wait about 10 seconds. Then, wait until
close to zero before pressing
given in ppm/s.

Enter

SlopeSlope

Slope value to display.

SlopeSlope

SlopeSlope

Slope is sufficiently

SlopeSlope

to finish zeroing.

SlopeSlope

Slope is

SlopeSlope

Generally, you have a good zero when Slope is less than 0.05 ppm/s

for about 30 seconds. When Slope is close enough to zero, press

Enter

. In a

few seconds, the screen will update.

Once span settling completes, the information is stored in the

microprocessor, and the instrument automatically returns to the

Analyze

mode.

4.4.1.3 Cell Failure

Cell failure in the 3010MB is usually associated with inability to zero
the instrument down to a satisfactorily low ppm reading, e.g. cell does not
fail if it comes below 5PPM . When this occurs, the 3010MB system alarm
trips, and the LCD displays a failure message.

#.# ppm Anlz

CELL FAIL/ ZERO HIGH

Before replacing the cell:

a. Check your span gas to make sure it is within specifications.
b. Check for leaks downstream from the cell, where oxygen may be

leaking into the system.

Teledyne Analytical Instruments

Part I: 4-13

4 Operation Model 3010MB

c. Check whether more time is needed for readings to drop to a

satisfactory level. This might happen when zero was started from
very high PPM level

If there are no leaks and the span gas is OK, replace the cell as de-

scribed in Part II Analysis Units, chapter 5 Maintenance.

4.4.2 Span Cal

The

Span

button on the front panel is used to span calibrate the ana-

lyzer. Span calibration can be performed using the automatic mode, where
an internal algorithm compares consecutive readings from the sensor to
determine when the output matches the span gas concentration. Span cali­bration can also be performed in manual mode, where the operator deter­mines when the span concentration reading is acceptable and manually exits
the function.

4.4.2.1 Auto Mode Spanning

Press

Span

to enter the span function. The screen that appears allows
you to select whether the span calibration is to be performed automatically or
manually. Use the

∆∆

∆∇ arrow keys to toggle between AUTO and MAN span

∆∆

settling. Stop when AUTO appears, blinking, on the display.

Span: Settling: AUTO

<ENT> For Next

Press

Enter

to move to the next screen.

Calib. Holding time

Cal hold: 5 min

This menue allows the operator to set the time the analyzer should be
held in the auto span mode. It does not affect anything in Manual Mode.
Just press Enter to continue.

Press

Enter

to move to the next screen.

Span Val: 000008.00

<ENT>Span <UP>Mod #

Use the
the < > arrow keys to blink the digit you are going to modify. Use the

∆∆

∆∇ arrow keys to enter the oxygen-concentration mode. Use

∆∆

∆∆

∆∇

∆∆

arrow keys again to change the value of the selected digit. When you have
finished typing in the concentration of the span gas you are using
(209000.00 if you are using air), press

Enter

to begin the Span calibration.

4-14: Par t I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

#### ppm Span

Slope=#### ppm/s

The beginning span value is shown in the upper left corner of the
display. As the span reading settles, the screen displays and updates informa­tion on Slope. Spanning automatically ends when the span output corre­sponds, within tolerance, to the value of the span gas concentration. Then the
instrument automatically returns to the analyze mode.

4.4.2.2 Manual Mode Spanning

Press

Span

to start the

Span

function. The screen that appears allows
you to select whether the span calibration is to be performed automatically or
manually.

Span: Settling:MAN

<ENT> For Next

Use the ∆∇ keys to toggle between AUTO and MAN span settling.

Stop when MAN appears, blinking, on the display. Press

Enter

to move to

the next screen.

Press

Enter

to move to the next screen.

Calib. Holding time

Cal hold: 5 min

This menue allows the operator to set the time the analyzer should be
held in the auto span mode. It does not affect anything in the Manual Mode.
Just press Enter to continue.

Span Val: 000008.00

<ENT>Span <UP>Mod #

Press ∆ (<UP>) to permit modification (Mod #) of span value.

Use the arrow keys to enter the oxygen concentration of the span gas
you are using (209000.00 if you are using air). The < > arrows choose the
digit, and the ∆∇ arrows choose the value of the digit.

Press

Enter

to enter the span value into the system and begin the span

calibration.

Once the span has begun, the microprocessor samples the output at a
predetermined rate. It calculates the difference between successive samplings
and displays this difference as Slope on the screen. It takes several seconds
for the first Slope value to display. Slope indicates rate of change of the Span
reading. It is a sensitive indicator of stability.

Teledyne Analytical Instruments

Part I: 4-15

4 Operation Model 3010MB

#### % Span

Slope=#### ppm/s

When the Span value displayed on the screen is sufficiently stable,

press

Enter

. (Generally, when the Span reading changes by 1 % or less of
the full scale of the range being calibrated for a period of ten minutes it is
sufficiently stable.) Once
correct value. The instrument then automatically enters the
tion.

Enter

is pressed, the Span reading changes to the

Analyze

func-

4.4.3 Span Failure

The analyzer checks the output of the cell at the end of the span. If the
raw output of the cell is less than 0.5 uA/ppm O2, the span will not be
accepted. The analyzer will return to the previous calibration values, trigger
the System Alarm, and display in the VFD:

Span Failed!!

This message will be shown for five seconds and the instrument shall
return to the Analyze mode. In the upper right hand corner of the VFD
display “FCAL” will be shown. This message flag will help the operator
troubleshoot in case calibration was initiated remotely. To reset the alarm
and the flag message, the unit must be turned off by cycling the standby key

. It will not reset if the next span cycle is correct.

A trace cell is unlikely to fail span. As explained before, when the
sensor reaches the end of its useful life, the zero offset begins to rise until the
analyzer finds the zero unsatisfactory. Nevertheless, feeding the wrong span
gas or electronics failure could set this feature off at the end of the span.
Consider this before replacing the cell.

4.5 The

The Model 3010MB is equipped with 2 fully adjustable concentration
alarms and a system failure alarm. Each alarm has a relay with a set of form
C contacts rated for 3 amperes resistive load at 250 V ac. See figure in
chapter 3, Installation and/or the Interconnection Diagram included at the
back of this manual for relay terminal connections.

Alarms

Function

The system failure alarm has a fixed configuration described in chapter
3 Installation.

The concentration alarms can be configured from the front panel as
either high or low alarms by the operator. The alarm modes can be set as

4-16: Par t I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

latching or nonlatching, and either failsafe or nonfailsafe, or, they can be
defeated altogether. The setpoints for the alarms are also established using

this function.

Decide how your alarms should be configured. The choice will depend

upon your process. Consider the following four points:

1. Which if any of the alarms are to be high alarms and which if any
are to be low alarms?

Setting an alarm as HIGH triggers the alarm when the oxygen
concentration rises above the setpoint. Setting an alarm as LOW
triggers the alarm when the oxygen concentration falls below the
setpoint.

Decide whether you want the alarms to be set as:

• Both high (high and high-high) alarms, or

• One high and one low alarm, or

• Both low (low and low-low) alarms.

2. Are either or both of the alarms to be configured as failsafe?
In failsafe mode, the alarm relay de-energizes in an alarm

condition. For nonfailsafe operation, the relay is energized in an
alarm condition. You can set either or both of the concentration
alarms to operate in failsafe or nonfailsafe mode.

3. Are either of the alarms to be latching?
In latching mode, once the alarm or alarms trigger, they will

remain in the alarm mode even if process conditions revert back
to no-alarm conditions. This mode requires an alarm to be
recognized before it can be reset. In the nonlatching mode, the
alarm status will terminate when process conditions revert to no­alarm conditions.

4. Are either of the alarms to be defeated?
The defeat alarm mode is incorporated into the alarm circuit so

that maintenance can be performed under conditions which
would normally activate the alarms.

The defeat function can also be used to reset a latched alarm.
(See procedures, below.)

If you are using password protection, you will need to enter your

password to access the alarm functions. Follow the instructions in Section

4.3.3 to enter your password. Once you have clearance to proceed, enter the

Alarm

function.

Press the

Make sure that AL1 is blinking.

Alarm

button on the front panel to enter the

Teledyne Analytical Instruments

Alarm

function.

Part I: 4-17

4 Operation Model 3010MB

AL1 AL2

Choose Alarm

Set up alarm 1 by moving the blinking over to AL1 using the < >

arrow keys. Then press

Five parameters can be changed on this screen:

• Value of the alarm setpoint, AL–1 #### (ppm or % oxygen)

• Out-of-range direction, HI or LO

• Defeated? Dft–Y/N (Yes/No)

• Failsafe? Fs–Y/N (Yes/No)

• Latching? Ltch–Y/N (Yes/No).

• To define the setpoint, use the < > arrow keys to move the

blinking over to AL–1 ####. Then use the ∆∇ arrow keys to
change the number. Holding down the key speeds up the
incrementing or decrementing. (Remember, setpoint units are
parts-per-million.)

Enter

to move to the next screen.

AL1 1000 ppm HI

DftN FsN LtchN

• To set the other parameters use the < > arrow keys to move the

blinking over to the desired parameter. Then use the ∆∇ arrow
keys to change the parameter.

• Once the parameters for alarm 1 have been set, press
again, and repeat this procedure for alarm 2 (AL–2).

• To reset a latched alarm, go to Dft and then press either ∆ two
times or ∇ two times. (Toggle it to

–OR –

Go to Ltch and then press either ∆ two times or ∇ two times.
(Toggle it to

4.6 The

The Range function allows the operator to program up to three concen­tration ranges to correlate with the DC analog outputs. If no ranges are
defined by the user, the instrument defaults to:

NN

N and back to

NN

Range

Range Limits

Low 0–1%
Med 0–5%
High 0–10%

Function

Y.Y.

Y.)

Y.Y.

YY

Y and then back to

YY

Alarms

N.N.

N.)

N.N.

4-18: Par t I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

The Model 3010MB is set at the factory to default to autoranging. In
this mode, the microprocessor automatically responds to concentration
changes by switching ranges for optimum readout sensitivity. If the current
range limits are exceeded, the instrument will automatically shift to the next
higher range. If the concentration falls to below 85% of full scale of the next
lower range, the instrument will switch to that range. A corresponding shift
in the DC percent-of-range output, and in the range ID outputs, will be
noticed.

The autoranging feature can be overridden so that analog output stays
on a fixed range regardless of the oxygen concentration detected. If the
concentration exceeds the upper limit of the range, the DC output will
saturate at 1 V dc (20 mA at the current output).

However, the digital readout and the RS-232 output of the concentra­tion are unaffected by the fixed range. They continue to read accurately with
full precision. See Front Panel description in chapter 1.

The automatic air calibration range is always 0-25 % and is not pro­grammable.

4.6.1 Setting the Analog Output Ranges

To set the ranges, enter the range function mode by pressing the

Range

button on the front panel.

L### M####

H##### ModeAUTO

Use the < > arrow keys to blink the range to be set: low (L), medium
(M), or high (H).

Use the ∆∇ arrow keys to enter the upper value of the range (all ranges
begin at 0 ppm). Repeat for each range you want to set. Press
accept the values and return to

Note: The ranges must be increasing from low to high, for example,

if range 1 is set as 0–10% and range 2 is set as 0–100%, range
3 cannot be set as 0–50% since it is lower than range 2.

Analyze

mode. (See note below.)

Enter

to

Teledyne Analytical Instruments

Part I: 4-19

4 Operation Model 3010MB

4.6.2 Fixed Range Analysis

The autoranging mode of the instrument can be overridden, forcing the

analyzer DC outputs to stay in a single predetermined range.

To switch from autoranging to fixed range analysis, enter the range

function by pressing the

Range

button on the front panel.

Use the < > arrow keys to move the blinking over AUTO.
Use the ∆∇ arrow keys to switch from AUTO to FX/LO, FX/MED, or

FX/HI to set the instrument on the desired fixed range (low, medium, or
high).

L### M####

H##### ModeFX/LO

or

L### M####

H##### ModeFX/MED

or

L### M####

H##### ModeFX/HI

Press

Escape

NOTE:When performing analysis on a fixed range, if the oxygen

concentration rises above the upper limit (or default value) as
established by the operator for that particular range, the
output saturates at 1 V dc (or 20 mA). However, the digital
readout and the RS-232 output continue to read the true value
of the oxygen concentration regardless of the analog output
range.

4.7 The

When the

to re-enter the

Analyze

Analyze

function is active, the 3010MB is monitoring the

Analyze

mode using the fixed range.

Function

sample gas currently flowing in the Analysis Unit cell block. All undefeated
alarms are ready to activate should their respective setpoints be crossed.

Press the
Normally, all of the functions automatically switch back to the

Analyze

button to put the analyzer in the

Analyze

mode.

Analyze

function when they have completed their assigned operations. Pressing the

Escape
lyze

button in many cases also switches the analyzer back to the

function. Alternatively, you can press the

Analyze

button at any time

Ana-

to return to analyzing your sample.

4-20: Par t I

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Part I: Control Unit

4.8 Signal Output

The standard Model 3010MB Percent Paramagnetic Oxygen Analyzer
is equipped with two 0-1 V dc analog output terminals accessible on the
interface panel (one concentration and one range ID) and two isolated 4-20
mA dc current outputs (one concentration and one range ID).

See Rear Panel in chapter 3, Installation, for illustration.

The signal output for concentration is linear over the currently selected
analysis range. For example, if the analyzer is set on range that was defined
as 0–10% O2, then the output would be:

Voltage Signal Current Signal

ppm O

2

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

Output (V dc) Output (mA dc)

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.

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. The following table
gives the range ID output for each analysis range:

Range Voltage (V) Current (mA)

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

Teledyne Analytical Instruments

Part I: 4-21

4 Operation Model 3010MB

IMPORTANT:In the event of loss of flow through the analyzer, if the

vent is vented to a location of high oxygen content,
oxygen will back diffuse through the vent line and in
most cases quickly saturate the cell with oxygen which
can then require a quite long purge down time for
the sensor when then exposed to low oxygen concen­trations. In the event that flow is to be interrupted into
the analyzer, it is suggested that the user do one of the
following:

1. Bag the sensor in nitrogen during this time

2. Install a shut off valve on the vent port of the ana­lyzer or somewhere within the users sample system.

4-22: Par t I

Teledyne Analytical Instruments

Part I: Control Unit Maintenance 5

Maintenance

Aside from normal cleaning and checking for leaks at the gas connec-

tions, routine maintenance is limited to replacing fuses, and recalibration.

Checking for leaks, and replacing fuses in the Analysis Unit are cov­ered in Part II, Chapter 5. For recalibration, see Part I, section 4.4 Calibra-
tion.

WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS

MANUAL.

5.1 Fuse Replacement

The 3010MB requires two 5 x 20 mm, 1.0 A, T type (Slow Blow)

fuses.

The fuses are located inside the main housing on the Electrical

Connector Panel, as shown in Figure 5-3. To replace a fuse:

1. Disconnect the Unit from its power source.

2. Place a small screwdriver in the notch in the fuse
holder cap, push in, and rotate 1/4 turn. The cap will
pop out a few millimeters. Pull out the fuse cap and
fuse, as shown in Figure 5-1

Teledyne Analytical Instruments

Part I: 5-1

5 Maintenance Model 3010MB Percent Paramagnetic Oxygen Analyzer

Figure 5-1: Removing Fuse Block Cap and Fuse from Housing

2. Replace fuse by reversing process in step 1.

5.2 System Self Diagnostic Test

1. Press the

2. Use the < > arrow keys to move to More, and press

3. Use the < > arrow keys to move to Self-Test, and press

The following failure codes apply:

System

Table 5-1: Self Test Failure Codes

Power

0OK
1 5 V Failure
2 15 V Failures
3 Both Failed

Analog

0OK
1 DAC A (0–1 V Concentration)
2 DAC B (0–1 V Range ID)
3 Both Failed

button to enter the system mode.

Enter

Enter

.

.

5-2: Part I

Teledyne Analytical Instruments

Part I: Control Unit Maintenance 5

Preamp

0OK
1 Zero too high
2 Amplifier output doesn't match test input
3 Both Failed

5.3 Major Internal Components

The major components in the Control Unit are shown in Figure 5-3.

Outer Door

Inner Door

Main PCB

PreampPCB

Display PCB

Doors shown removed
for clarity

Electrical Connector Pane

Box Subassembl
(Gas Connector
Panel not shown.

Figure 5-3: Control Unit Major Internal Components

Teledyne Analytical Instruments

Part I: 5-3

5 Maintenance Model 3010MB Percent Paramagnetic Oxygen Analyzer

WARNING: HAZARDOUS VOLTAGES EXIST ON CERTA1IN

COMPONENTS INTERNALLY WHICH MAY PERSIST
FOR A TIME EVEN AFTER THE POWER IS TURNED
OFF AND DISCONNECTED.

The 3010MB Control Units contain the following major components:

• Power Supply

• Motherboard (with Microprocessor, RS-232 chip, and
Preamplifier PCB)

• Front Panel Display Board and Displays—

5 digit LED meter
2 line, 20 character, alphanumeric, VFD display

See the drawings in the Drawings section in back of this manual

for details.

5-4: Part I

Teledyne Analytical Instruments

Part II: Analysis Unit

OPERATING INSTRUCTIONS

Model 3010M

Oxygen Analyzer

Part II: Analysis Unit

Part Number D-71394

Teledyne Analytical Instruments

Part II: i

Model 3010M Oxygen Analyzer

Table of Contents

1 Operational Theory

1.1 Introduction .................................................................... 1-1

1.2 Precise Paramagnetic Sensors...................................... 1-1

1.2.1 Principles of Operation .......................................... 1-1

1.3 Cross Intrface................................................................. 1-3

2 Maintenance

2.1 Routine Maintenance..................................................... 2-1

2.2 Major Internal Components............................................ 2-1

2.3 Sensor Replacement ..................................................... 2-1

2.4 Output Goes Negative.................................................... 2-1

ii: Par t II

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Operational Theory 1

Operational Theory

1.1 Introduction

The analyzer is composed of three subsystems:

1. Paramagnetic Sensor

2. Sample System

3. Electronic Signal Processing, Display and Control

The sample system is designed to accept the sample gas and transport it
through the analyzer without contaminating or altering the sample prior to
analysis. The Paramagnetic Sensor is an electromechanical device that
translates the amount of oxygen present in the sample into an electrical
signal. The electronic signal processing, display and control subsystem
simplifies operation of the analyzer and accurately processes the sampled
data. The microprocessor controls all signal processing, input/output and
display functions for the analyzer.

1.2 Precise Paramagnetic Sensor

1.2.1 Principles of Operation

The heart of the 3010M is a paramagnetic type oxygen sensor that is
maintanance free and has a long lifetime. Oxygen has a very high magnetic
sucseptibility compared to other gases and thus displays a particularly para­magnetic behavior. A small glass dumbbell filled with nitrogen and rotating
on a taut platinum wire is suspended in an inhomogneous magnetic field.
This glass dumbbell is diamagnetic and tends to rotate out of the magnetic
field. The strength of the resulting torque determined by an susceptibility of
the sample gas. This torque is compensated for by a counter torque induced
by an electrically charged platinum coil on the dumbbell. The zero position
of the dumbbell is controlled by means of an optical system consisting of a
light source, a mirror at the dumbbell axis and a pair of detectors. The
difference between the compensating currents required to bring the dumb-

Teledyne Analytical Instruments

Part II: 1-1

1 Operational Theory Model 3010M

bell to the zero position in the presence of zero gas (i.e. no O2 present) or of
sample gas is proportional to the partial pressure of oxygen in the sample
gas.

The sensor enclosure is temperature controlled to 55 degrees centigrade
to insure that the magnetic susceptibility of oxygen in the sample is not
affected by the ambient temperature. The measuring cell has a measuring
volume of approximately 3 cm

3

Sensor

(side view shown)

The Paramagnetic sensor enclosure holds not only the sensing elements,
but the temperature controller electronics, heating elements, sensor electron­ics, and preamplifier. The Electronics and heating elements require a separate
power source, from the rest of the 3020M capable of delivering 1.5 amps
approximately at 24 volts dc. The output of the sensor is roughly calibrated
to be 0 to 1 volt DC for the the range of 0 to 100 % 02. The true calibration
of the sensor is carried out by the microprocessor as described later in chap­ter 4. The electrical interconnections to the sensor are done through a 15 pin
D connector. Some signals from the sensor are not connected. They are only
useful for troubleshooting, by trained personnel, as test points.

1-2: Part II

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Operational Theory 1

Sensor

(rear view shown)

Pin out:

1 -15Vdc test pin (Not connected)
2 +15Vdc test pin (Not connected)
3 Measuring ground
4 Not used
5 Preamplifier output ~0- 1 Vdc
6 Not used
7 24 Vdc return, power ground
8 Collector of transistor switching heating element (Not con-

nected)
9 Fault signal: <0 Vdc= OK, >4.6 Vdc = Fault (Not connected)
10 Not used
11 Negative reference voltage (Not connected)
12 Positive reference voltage (Not connected)
13 Nominal temperature voltage signal (Not connected)
14 Actual temperature voltage signal (Not connected)
15 +24 Vdc power.

1. 3 Cross Interference

As mentioned previously, the selectivity of the measuring system is

based on the extraordinarily high magnetic susceptibility of Oxygen com­pared to other gases. In most cases the presence of other gases can be ig­nored but significant errors can occur when the sensor is calibrated with a
mixture of oxygen and nitrogen and the sample gas consists mainly of other
gases with considerable magnetic susceptibility. In this case, the reading
shows a measured value even if the sample gas contains no Oxygen. It is
actually displaying the cross sensitivity to another gas.

The following table shows the cross sensitivity of some gases when

changing from pure nitrogen to 100% of one of the gases listed.

Teledyne Analytical Instruments

Part II: 1-3

1 Operational Theory Model 3010M

Gas Cross Gas Cross

Sensitivity Sensitivity
in vol. % in vol. %

Acetylene C2H
Allene C3H

4

Ammonia NH

2

3

-0.24 Hydrogen chloride HCI -0.30

-0.44 Hydrogen fluoride HF +0.10

-0.26 Hydrogen iodide HI -1.10
Argon Ar -0.22 Hydrogen sulphide H2S -0.39
Bromine Br

2

1.2 Butadiene C4H

1.3 Butadiene C4H
n-Butane C4H

10

6
6

-1.30 Iodine I -2.40

-0.49 Isobutane C4H

-0.49 Isopantane C5H

10

12

-1.11

-1.49

-1.11 Krypton Kr -0.51
I-Butane C4H8 -085 Laughing gas N2O -0.20
cis 2-Butane C4H
trans 2-Butane C4H
Carbon dioxide CO

8

8

2

Carbon monoxide CO +0.06 Nitric acid HNO
Chlorine Cl
Cyclo hexane C6H
Ethane C2H
Ethylene C2H

2

12

6

4

Helium He +0.30 Propane C3H
n-Heptane C7H
n-Hexane C6H
Hydrogen H

16

14

2

-0.89 Methane CH

4

-0.20

-0.92 Neon Ne +0.13

-0.27 Neopentane C5H

12

3

-0.77 Nitrogen dioxide NO

2

-1.49
+0.43
+28.00

-1.56 Nitrous oxide NO +40.00

-0.43 n-Octane C8H

-0.26 n-Pentane C5H

8

-2.10 Propylene C3H

18

12

6

-2.50

-1.45

-0.86

-0.55

-1.70 Vinyl chloride -0.63

+0.24 Water H2O -0.02

Hydrogen bromide HBr -.0.61 Xenon Xe -0.95

With gas mixtures the components are weighted according to their

proporational volumes.

The cross interference with a gas mixture can be determined in advance if the

concentration of the individual background gases is known.

Example:

Cross sensitivity calculation for a gas mixture:

The gas to be measured consists of 10 % CO2, 40 % of N2, and 50%

of Ar.

C02: -0.27 x 10% = -0.027

Ar: -0.22x5O%= -0.11

TOTAL CROSS INTERFERENCE -0.137

Calculation of the zero value:

(0% 02) - (Cross Interference Value) = Zero Point Value

0%-(-0.137) = +0.137%0

1-4: Part II

2

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Maintenance 2

Maintenance

2.1 Routine Maintenance

Aside from normal cleaning and checking for leaks at the gas connec­tions, routine maintenance is limited to replacing Paramagnetic Sensor and
fuses, and recalibration. For recalibration, see Section 4.4 The Zero and
Span Functions.

WARNING: SEE WARNINGS ON TITLE PAGE OF THIS MANUAL.

2.2 Major Internal Components

The 3010M contains the following major internal components:

• Paramagnetic Sensor

2.3 Sensor Replacement

The Paramagnetic Sensor is maintenance free, and has a long life.
Should the sensor fail, contact the factory for service and replacement.

2.4 Output Goes Negative

If during operation of the instrument, gas pressure exceeds 20 psig, the
output of the sensor may reverse polarity, readings on the display may go
negative. If this happens:

Make sure analyzer is mounted in the upright position (see
chapter 3, Installation).

Turn power off by unplugging the instrument.
Turn gas pressure to less than 20 psig.
Turn power on again.
Return instrument to analyze mode.

Teledyne Analytical Instruments

Part II: 2-1

2 Maintenance Model 3010M

2-2: Part II

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Appendix

Appendix

A-1 Specifications

Packaging: Bulkhead mount.

Sensor: Paramagnetic Sensor.

Ranges: Three user definable ranges from 0-5 % to 0-

100 %.
Autoranging with range ID output.

Sample System: Positive pressure service.

Vacuum service (optional).
Auto Cal / Auto Zero. (Available with op-

tional, electrically operated valves.)

Alarms: One system-failure alarm contact to detect

power failure.
Two adjustable concentration threshold alarms

with fully programmable setpoints.

Diagnostics: Start-up or on-demand self-testing function.

Response Time: 90% in 10 seconds or less.

Displays: 2 line by 20 alphanumeric, VFD screen, and

one 5 digit LED display.

Digital Interface: Full duplex RS-232 communications port.

Power: Universal power supply 100-240 V ac, at 50

or 60 Hz, 70 Watts max.

Operating Temperature: 0-45 °C

Accuracy: ±1% of full scale at constant temperature.

±5% of full scale over operating temperature

Teledyne Analytical Instruments

A-1

Appendix Model 3010M

range, on factory default analysis ranges, once
thermal equilibrium has been achieved.

Analog outputs: 0-1 V dc percent-of-range

0-1 V dc range ID.

4-20 mADC percent-of-range
4-20 mADC range ID.

Password Access: Can be user-configured for password

protection.

A-2

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Appendix

A-2 Recommended 2-Year Spare Parts List

QTY.PART NUMBER DESCRIPTION

1 C62371B Display PCB
1 D70046 Customer Interface PCB
1 C70043 Percent Preamplifier Board
1 C62365-A Main PCB (4-20 mA)
4 F1295 Fuse, 4A, 250V, 5x20 mm, T (Slow Blow)

A minimum charge is applicable to spare parts orders.

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.

Orders should be sent to:

Teledyne Analytical Instruments

16830 Chestnut Street

City of Industry, CA 91749-1580

Phone [phone], Fax [phone]

TWX [phone] TDYANYL COID

Web: www.teledyne-ai.com

or your local representative.

A-3 Drawing List

D-66826 Wiring Diagram
C-71466 Interconnection Diagram

Teledyne Analytical Instruments

A-3

Appendix Model 3010M

NOTE: The MSDS on this material is available upon request

through the Teledyne Environmental, Health and
Safety Coordinator. Contact at [phone]

A-4

Teledyne Analytical Instruments

Percent Paramagnetic Oxygen Analyzer Appendix

A-5 Zero Cal

The ZERO function on the MAIN MENU is used to enter the zero
calibration function. Zero calibration can be performed in either the auto­matic or manual mode. In the automatic mode, an internal algorithm com­pares consecutive readings from the sensor to determine when the output is
within the acceptable range for zero. In the manual mode, the operator
determines when the reading is within the acceptable range for zero.

Make sure the zero gas is connected to the instrument.

If you have trouble zeroing, you may need to skip to section 4.8.1.3
Cell Failure.

Auto Mode Zeroing

Select ZERO to enter the ZERO function. The ZERO screen allows
you to select whether the zero calibration is to be performed automatically or
manually. Use the DOWN/UP control to toggle between AUTO and MAN
zero settling. Stop when AUTO appears on the display.

Zero: Settling: AUTO

<ENT> To Begin

ENTER to begin zeroing.

#### % Zero

Slope=#### ppm/s

The beginning zero level is shown in the upper left corner of the dis­play. As the zero reading settles, the screen displays and updates information
on Slope (unless the Slope starts within the acceptable zero range and does
not need to settle further).

Then, and whenever Slope is less than 0.08 for at least 3 minutes,
instead of Slope you will see a countdown, such as 1 Left, 0 Left. These are
steps in the zeroing process that the system must complete, AFTER settling,
before it can go back to ANALYZE.

#### % Zero

1 Left=### ppm/s

The zeroing process will automatically conclude when the output is
within the acceptable range for a good zero. Then the analyzer automatically
returns to the ANALYZE screen.

Teledyne Analytical Instruments

A-5

Appendix Model 3010M

Manual Mode Zeroing

ENTER the ZERO function. The screen that appears allows you to

select between automatic or manual zero calibration. Use DOWN/UP to
toggle between AUTO and MAN zero settling. Stop when MAN appears on
the display.

Zero: Settling: Man

<ENT> To Begin

ENTER to begin the zero calibration. After a few seconds the first of
five zeroing screens appears. The number in the upper left hand corner is the
first-stage zero offset. The microprocessor samples the output at a predeter­mined rate. It calculates the differences between successive samplings and
displays the rate of change as Slope= a value in parts per million per second
(ppm/s).

#### % Zero

Slope=#### ppm/s

NOTE:It takes several seconds for the true Slope value to display.

Wait about 10 seconds. Then, wait until Slope is sufficiently
close to zero before using ENTER to finish zeroing.

Generally, you have a good zero when Slope is less than 0.05 ppm/s
for about 30 seconds. When Slope is close enough to zero, ENTER it. In a
few seconds, the screen will update.

Once zero settling completes, the information is stored in the
microprocessor, and the instrument automatically returns to the ANALYZE
screen.

A-6

Teledyne Analytical Instruments