Bacharach 3100, 3150 Operation & Maintenance Instructions Manual

CO2 Analyzer Models 3100 & 3150

Operation & Maintenance

Instruction 0019-9339

Rev. 3 – May 2010

CO2 Analyzers 3100 & 3150

WARRANTY

Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in
mater ial and manufac ture and will conform substan tially to Bach arach Inc.’s ap plicable spec i fi ca tions.
Bacharach’s li a bil i ty and Buyer’s remedy under this warranty are lim it ed to the repair or replacement, at
Ba charach’s option, of this Product or parts thereof returned to Seller at the factory of manufac ture and
shown to Bacharach Inc.’s reasonable satisfaction to have been defective; provided that written notice of
the defect shall have been given by Buyer to Bacharach Inc. within one (1) year after the date of delivery
of this Product by Bacharach, Inc.

Bacharach, Inc. warrants to Buyer that it will convey good title to this Product. Bacharach’s liability and
Buyer’s remedy under this warranty of title are limited to the removal of any title defects or, at the elec­tion of Bacha rach, to the replacement of this Product or parts thereof that are defective in title.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF
(I) ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, IN CLUD ING WITH OUT LIMITA­TION THE IMPLIED WARRANTIES OF MERCHAN TABILITY AND FITNESS FOR A PARTICULAR
PURPOSE: AND (II) ANY OBLIGA TION, LIABILITY, RIGHT, CLAIM OR REM E DY IN CON TRACT OR
TORT, WHETHER OR NOT ARISING FROM BACH A RACH’S NEGLIGENCE, ACTUAL OR IM PLIED.
The remedies of the Buyer shall be limited to those provided herein to the exclusion of any and all other
remedies includ ing, without limita tion incidental or consequen tial dam ag es. No agree ment varying or
ex tend ing the foregoing warranties, remedies or this limitation will be binding upon Bacharach, Inc. un­less in writing, signed by a duly au tho rized officer of Bacharach.

Register Your Warranty by Visiting

www.mybacharach.com

Notice:

Product improvements and enhancements are continuous, therefore the spec i fi ca tions and in for ma tion
contained in this document may change without notice.

Bacharach, Inc. shall not be liable for errors contained herein or for incidental or consequential damages
in connection with the furnishing, performance, or use of this material.

No part of this document may be photocopied, reproduced, or translated to another language without the
prior written consent of Bacharach, Inc.

Copyright © 2009, Bacharach, Inc., all rights reserved.
BACHARACH is a registered trademark of Bacharach, Inc. All other trademarks,
trade names, service marks and logos referenced herein belong to their respective companies.

Instruction 19-9339 2

NOTES:

CO2 Analyzers 3100 & 3150

Instruction 19-9339 3

CO2 Analyzers 3100 & 3150

1.0 Manual Guidelines .........................................................................6

1.1 Safety Related Information ...................................................... 6

1.2 Notes ....................................................................................... 6

2.0 Introduction ....................................................................................7

2.1 Features of the CO

Analyzer 3100/3150 ................................ 7

2

2.2 Instrument Components - Standard Product ........................... 8

3.0 Optional Products and Accessories ............................................ 9

3.1 Optional Products .................................................................... 9

3.1.1 PC Software (Optional) ................................................ 9

3.1.1.1 Event Log ......................................................... 9

3.1.2 Temperature Probe Reading (Optional) ..................... 10

3.1.3 Humidity Probe Reading (Optional) ........................... 10

4.0 Instrument Features .................................................................... 11

4.1 Physical Characteristics of the Instrument Panel ...................11

4.2 Panel Key Functions ............................................................. 12

4.3 Instrument Connection Points ............................................... 13

5.0 General Operational Instructions............................................... 14

5.1 Switching the Instrument ON ................................................ 14

5.2 Switching the Instrument OFF ............................................... 14

5.3 Instrument Main Read Screen .............................................. 15

5.4 Instrument Status Icons ........................................................ 16

5.5 Entering Data ........................................................................ 16

5.6 Changing Between Parameters ............................................ 17

5.7 Memory ................................................................................. 17

5.8 Storage .................................................................................. 17

5.9 Main Menu ............................................................................ 18

5.9.1 Information ................................................................. 18

5.9.2 Utilities ....................................................................... 19

5.9.2.1 Time & Date ................................................... 19

5.9.2.2 Contrast ......................................................... 20

5.9.2.3 Alarms ............................................................ 21

5.9.2.4 Settings .......................................................... 22

5.9.2.5 Flow Fail ......................................................... 22

5.9.2.6 Logging .......................................................... 25

5.9.2.7 Reset .............................................................. 26

5.9.3 Calibration ................................................................. 26

5.9.4 View Data .................................................................. 26

5.9.4.1 Clear Reading Memory .................................. 27

5.9.5 Diagnostics ................................................................ 28

5.10 Warning and Error Codes .................................................... 28

5.11 Battery / Charging................................................................ 28

6.0 Taking Readings .......................................................................... 30

6.1 Preliminary Checks - Best Practice ....................................... 30

6.2 Gas Measurement Process - Best Practice .......................... 30

6.3 Alternative Reading Methods ................................................ 32

Instruction 19-9339 4

CO2 Analyzers 3100 & 3150

6.3.1 Logged Reading ........................................................ 32

6.3.2 Peak Reading ............................................................ 32

6.3.3 Hold Reading ............................................................. 32

7.0 Calibration ................................................................................... 33

7.1 User Calibration .................................................................... 33

7.2 Calibration Gases .................................................................. 34

7.3 Calibration Set-Up ................................................................. 34

7.4 Calibration Equipment ........................................................... 35

7.5 Calibration Method ................................................................ 36

7.5.1 Zero CO

7.5.2 Span CO

7.5.3 Zero O

7.5.4 Span O

Channel ..................................................... 36

2

Channel .................................................... 37

2

Channel ........................................................ 38

2

Channel ....................................................... 38

2

7.5.5 Reset Factory Settings .............................................. 39

7.6 Last Field Calibration ............................................................ 39

7.7 Calibration Record ................................................................ 39

8.0 Problem Solving .......................................................................... 41

8.1 Warnings and Errors ............................................................. 41

8.2 Self-test Warning Messages ................................................. 42

8.3 User Calibration Trouble Shooting ........................................ 44

8.4 Cross-Gas Effects ................................................................. 44

8.5 Switching Off the Instrument ................................................. 44

9.0 Service .......................................................................................... 45

10.0 Warranty Policy ......................................................................... 46

11.0 Technical Specifi cation ............................................................. 47

12.0 Event Log ................................................................................... 49

13.0 Emportant Notice to All Customers ......................................... 50

14.0 Glossary of Terms ..................................................................... 51

15.0 Replacement Parts .................................................................... 53

15.0 Service Centers ......................................................................... 54

Instruction 19-9339 5

CO2 Analyzers 3100 & 3150

1.0 Manual Guidelines

1.1 Safety and Related Information

Information in this manual that may affect the safety of the users and
others is preceeded by the following symbol:

WARNING

Failure to follow this information may result in physical injury which in
some cases could be fatal.

1.2 Notes

Important / useful information and instructions are shown clearly
throughout the manual in a note format.

For example:

NOTE: For further information, please contact your equipment

supplier.

NOTE: Actual screenshots will vary dependent on model.

Instruction 19-9339 6

CO2 Analyzers 3100 & 3150

2.0 Introduction

This manual explains how to use the instruments below:

• CO

• CO

• CO

• CO

• CO

• CO

• CO

• CO

Analyzer 3100 (0 - 20%)

2

P/N 19-7076

2

(with O2) P/N 19-7077

2

(with O2 and Relative Humidity) P/N 19-7078

2

Analyzer 3150 (0 - 10,000 PPM)

2

P/N 19-7136

2

(with O2) P/N 19-7137

2

(with O2 and Relative Humidity) P/N 19-7138

2

NOTE: The instrument is a sensitive piece of scientifi c equipment,

and should be treated as such.

The CO2 analyzer is specifi cally designed to monitor CO2 for the
verifi cation of incubators in research and pharmaceutical markets.
This unit has been developed to incorporate the latest technology and
specifi cation requirements, which provide the user with a fast, simple-
to-use and accurate piece of laboratory instrumentation.

2.1 Features of the CO2 Analyzer

The analyzer has the following features:

• CO

• CO

0 to 20% (3100)

2

0 to 10,000 PPM (3150)

2

• Options for:

• O

0 to 100%

2

• Dual Temperature probes 32 to 122°F (0 to 50 °C)

• Humidity Sensor 0 to 100%

• Improved accuracy on CO

readings

2

• Time saving dual temperature probes

• Large data storage and user friendly software and download

• Easy-to-read, large well-lit display

• Built-in gas moisture removal

Applications

• IVF/Medical • Research

• Laboratories • IAQ (Indoor Air Quality)

• Brewing • Atmosphere Control

• Incubators • Gas mixing

Instruction 19-9339 7

CO2 Analyzers 3100 & 3150

2.2 Instrument Components

The following items are included in the Analyzer Kit. Please check to
make sure all items have been included.

Analyzer (One of the following - refer to your model number):

CO

CO

CO

CO

CO

CO

Analyzer 3100 0019-7076

2

/ O2 Analyzer 3100 0019-7077

2

/ O2 Analyzer 3100 w/RH 0019-7078

2

Analyzer 3150 0019-7136

2

/ O2 Analyzer 3150 0019-7137

2

/ O2 Analyzer 3150 w/RH 0019-7138

2

Instruction Manual (on CD) 0019-9339

Battery Charger with adapters 0019-0610

Sample Tube Kit (includes sample fi lter and sample tube) 0019-0613

Quick Start Guide 0019-9338

Instruction 19-9339 8

CO2 Analyzers 3100 & 3150

3.0 CO2 Analyzer Accessories

3.1 Optional Products

The CO2 Analyzer has a number of optional products for purchase
which enhance the usability and enable further analysis of data and
reading information.

NOTE: For more information on the features listed in this section

please contact your nearest Bacharach Service Center.

3.1.1 PC Software (Optional)

The software enables the user to maximize the operation of the
incubator analyzer. Instrument readings and event log data may
be uploaded to a PC for further analysis and exported to other
applications such as MS Excel. It enables direct communication with
the unit, features a simple download facility and is fully compatible with

the latest Microsoft operating systems (32-bit only). A USB cable is

provided with the software.

3.1.1.1 Event Log

The instrument incorporates the ability to log signifi cant events via
the “Event Log.” This can be used as an aid to monitoring the use of
the instrument. It can also be used as a diagnostic tool if there is a
problem with the instrument.

The event log can only be viewed via the optional software. It cannot
be viewed on the analyzer screen. Applicable events are stored in the
event log automatiaclly, meaning no user intervention is required.

The event log can hold approximately 270 events. If the log becomes
full then it begins to overwrite the older events. This can be identifi ed
by the index fi eld which starts from event number 1. The log is cleared
when the instrument is reset.

NOTE: Please refer to Section 12.0 Event Log of this operating

manual for further information.

Instruction 19-9339 9

CO2 Analyzers 3100 & 3150

3.1.2 Temperature Probe Reading (Optional)

The instrument has the ability to read and display two temperature
readings via optional temperature probes (P/N 0019-0611). When
a temperature probe is fi tted to one of the temperature ports on the
top of the instrument, the display will automatically show the current
reading and a temperature probe icon will be displayed.

The display can also be changed to show a T

- T2 calculation by

1

pressing the appropriate soft-key. The current mode of operation can
be identifi ed by normal or inverse status of the soft-key, where inverse
indicates that the option is active.

NOTE: The T

- T2 result is not stored as part of the reading.

1

The operator can also choose to display the reading in either
Centrigrade or Fahrenheit using the temperature option accessed from

the Settings Menu.

Instruction 19-9339 10

CO2 Analyzers 3100 & 3150

4.0 Instrument Features

4.1 Physical Characteristics

Front View Back View

Reference:

A = Main Read Screen
B = Soft-Keys
C = ON/OFF Key
D = Pump Key
E = Key 4 - Scroll LEFT
F = Key 8 - Scroll DOWN
G = Menu Key
H = Enter Key
I = Key 2 - Scroll UP
J = Key 6 - Scroll RIGHT
K = Moisture Removal Tube
L = Serial Number
M = Instrument Stand

Instruction 19-9339 11

CO2 Analyzers 3100 & 3150

4.2 Panel Key Functions

KEYS FUNCTION

A Main Read Screen Start and end screen when using the instrument.

B Soft Keys The function of the three “soft-keys” on the front of

the instrument panel are determined by menu op­tions taken. Functions vary from screen to screen.

C ON/OFF Key Press the “ON/OFF” key briefl y to switch the

instrument on and off.

D Pump Key Press the “Pump” key to start or stop the pump.

E Scroll LEFT Key Also “Key 4”. Enables the operator to scroll left to

display more information.

F Scroll DOWN Key Also “Key 8.” Enables the operator to scroll down

to display more information.

G Menu Key Press the “Menu” key to go to the MAIN MENU.

Enables the operator to pre-set values and set­tings. Select options from the MAIN MENU to also
view data and readings stored or held.

H Enter Key The “Enter” key accepts/confi rms choices made by

the operator to various functions and operations.
Also, required to confi rm numeric data entry.

I Scroll UP Key Also “Key 2.” Press scroll up to view further infor-

mation on the instrument read screen.

J Scroll RIGHT Key Also “Key 6.” Press scroll right to view further

information on the instrument read screen.

K Moisture Removal Tube Removes the moisture from the sample gas.

L Serial Number Unique identifi cation for the instrument. Verifi ca-

tion of the serial number will be required if Techni­cal Support assistance is needed.

M Instrument Stand Instrument stand.

NOTE: Do NOT attempt to remove the cover off the back of the

analyzer which houses the moisture removal tube.

NOTE: Do NOT cover the moisture removal tube with your hand

when holding the analyzer to take readings.

Instruction 19-9339 12

CO2 Analyzers 3100 & 3150

4.3 Instrument Connections

Top View Side View

Refer­ence

A Temperature 1 Temperature 1 connector measures differ-

B Temperature 2 Temperature 2 connector measures differ-

C Humidity Probe (Optional) Humidity probe attachment point.

D Gas Outlet Gas outlet port used to exhaust the gas.

E Gas Inlet Gas inlet point used to attach the sample

F USB Port Used to connect the analyzer to a PC via a

G Battery Charger Port Used to attach the mains charger to the

Type Description

ential temperature - incubator and ambient
temperatures.

ential temperature - incubator and ambient
temperatures.

tube and fi lter in order to take the gas read-
ing.

USB cable to download data.

analyzer for charging.

NOTE: Depending on the confi guration purchased, certain connectors

may not be present. Reference you model number for this
information.

Instruction 19-9339 13

CO2 Analyzers 3100 & 3150

5.0 General Operational Instructions

5.1 Switching the Instrument ON

1) To switch on the instrument, press the “ON/OFF” key briefl y. There
will be a short beep and a slight pause followed by the Bacharach
logo.

2) The power on self-test will then commence (approximately 60
seconds).

3) If there are no warnings to display the instrument will continue to
the MAIN READ SCREEN.

5.2 Switching the Instrument OFF

1) Purge the analyzer with fresh air. Run the pump for approximately
30 seconds or until the readings have returned to normal levels.

NOTE: Before the instrument is switched off, a clean air purge should

be performed. This ensures that the instrument is free from
gas and ready for the next measurement. This fi nal purge is
especially important for the oxygen sensor as it may degrade
if stored when contaminated with gas.

2) To switch off the instrument, press the “ON/OFF” key briefl y.

NOTE: If the “AUTO OFF” setting is set to “YES”, the analyzer will

switch off automatically after 10 minutes if not in use.

Instruction 19-9339 14

CO2 Analyzers 3100 & 3150

5.3 Instrument Main Read Screen

After the analyzer has been switched on and the warm-up self-tests
have completed, the analyzer will display the “MAIN READ SCREEN.”

CO2 Analyzer 3100 w/ O2 shown

Soft-Keys:

Peak - Enables the operator to display the peak reading.
Store - Enables the operator to store the reading for viewing/download

later.

Hold - Enables the operator to hold the current reading being taken.

Instruction 19-9339 15

CO2 Analyzers 3100 & 3150

s

5.4 Instrument Status Icons

The following icons may be displayed on the instrument read screens:

Icon Description

Battery Charge State

(fl ashing) < 1 Hour Remaining

(fl ashing) Battery Charging

Charged

Pump Running

(fl ashing) Pump Stalled

Alarm Set

(fl ashing) Alarm Active

USB Connected to PC (fl ickers when transferring data)

Logging Mode Active (fl ashes when memory nearly full)

Temperature Probe(s) Connected

Humidity Probe Connected

(fl a

(fl ashing) Service Due (every 12 months)

Service Overdue

Fault / Repair (i.e. O

Waiting

cell, battery, or pump may need replacing)

2

5.5 Entering Data

During normal operation the user may be prompted to enter data or
information via the keypad, i.e. entering an ID code or setting an alarm
level.

When entering data into the instrument, all fi elds are fi xed format and
are populated from the right. For example, to enter the new time,
09:25:00, the user would type in 092500 using the numeric keypad in
the following sequence:

• : : 0

• : :09

• : 0:92

• :09:25

• 0:92:50

• 09:25:00

Press the “ENTER” key to confi rm/accept the data.

Instruction 19-9339 16

CO2 Analyzers 3100 & 3150

The soft-key “DELETE” will delete the last character typed.
Alternatively, the sequence can be re-typed before the “ENTER” key
is pressed and the existing numbers will be replaced by the new
sequence.

NOTE: The instrument will not allow invalid data to be entered; this

should be deleted and re-entered.

5.6 Changing Between Parameters

By default, the instrument displays the MAIN READ SCREEN (for gas
measurement). This shows the CO
readings (O

, %RH, etc). The instrument will return to this screen after

2

power on or when returning from the menus. The “SCROLL” keys can
be used to switch to another measurement screen, i.e. temperature or
humidity. Continue to press the “SCROLL” key to return to the MAIN
READ SCREEN.

reading along with the optional

2

5.7 Memory

The memory SHOULD NOT be used as a permanent storage medium
and any important data should be transferred to a more permanent
storage medium as soon as possible. The instrument should not be
stored for prolonged periods with valuable data in its memory.

5.8 Storage

When not in use, the instrument should be kept in a clean, dry, and
warm environment such as an offi ce. It should be stored fl at in order
to help prolong the life of the O

cell.

2

Instruction 19-9339 17

CO2 Analyzers 3100 & 3150

5.9 Main Menu

The “MAIN MENU” enables the operator to select options to set up
specifi c parameters and perform operational tasks prior to sample
readings being taken or to view data/information stored in the
instrument.

1) Press the “MENU” key on the front of the instrument panel and the

following screen will be displayed:

2) Press the soft-key “EXIT” to exit the MAIN MENU.

5.9.1 Information

The “INFORMATION” option enables the operator to display
information such as instrument type, serial number, current software
version, service due date, and the dates of the last factory and user
calibrations. Note that the dates are in DD/MM/YY format.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 1” to display general information about the instrument.

Instruction 19-9339 18

CO2 Analyzers 3100 & 3150

5.9.2 Utilities

The “UTILITIES” option enables the operator to confi gure the
instrument settings prior to taking readings.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 2” to display the “UTILITIES” menu and the following

screen will be displayed:

5.9.2.1 Time & Date

The “TIME AND DATE” option enables the operator to check or set the
instrument’s internal clock. The current time/date will appear on every
stored reading.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 2” to display the “UTILITIES” menu.

3) Press “KEY 1 - TIME & DATE” and the “SET TIME & DATE” menu

is displayed as follows:

Instruction 19-9339 19

CO2 Analyzers 3100 & 3150

4) Press “KEY 1” to change the time or press “KEY 2” to change the

date. Type the time or date using the numeric keypad followed by
the “ENTER” key. The instrument will not allow invalid times or
dates to be entered.

NOTE: The clock will need to be manually adjusted to cope with

daylight saving changes or changes when crossing time
zones.

5.9.2.2 Contrast

The “CONTRAST” option enables the operator to adjust the
instrument screen contrast to compensate for changes in ambient
temperature. The default setting is 0.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 2” to display the “UTILITIES” menu.

3) Press “KEY 2” to select the instrument panel contrast settings and

the following screen will be displayed:

4) Press “KEY 4 - SCROLL LEFT” and “KEY 6 - SCROLL RIGHT” to

adjust the value displayed.

5) Press the soft-key “ACCEPT” or “REJECT” accordingly to accept or

reject the changes.

NOTE: The manually-set contrast setting is retained when the

instrument is switched OFF.

Instruction 19-9339 20

CO2 Analyzers 3100 & 3150

5.9.2.3 Alarms

The analyzer has the ability to set rising or falling alarms for the two
main gas channels, CO

and O2 (if selected as an option). The alarms

2

for each channel can be enabled or disabled independently via the
“ALARMS” menu option.

Once enabled these alarms become active in the “MAIN READ
SCREEN”; this is indicated by a bell icon. If an alarm is triggered the
screen turns red and a fl ashing bell icon is displayed. The beeper is
sounded until the gas level has recovered beyond the trigger point.

• Rising alarms are triggered when the gas level exceeds the

maximum value entered by the user.

• Falling alarms are triggered when the gas level falls below the

minimum value entered by the user.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 2” to display the “UTILITIES” menu.

3) Press “KEY 3” to select alarm settings and the following screen will

be displayed:

4) Press “KEY 1” to select the CO

alarm and “KEY 2” to select the O2

2

alarm.

5) Press “KEY 1” to enable/disable the alarm, “KEY 2” to set a

maximum value, or “KEY 3” to set a minimum value.

6) Press ENTER to store the selected choice.

Instruction 19-9339 21

CO2 Analyzers 3100 & 3150

5.9.2.4 Settings

The “SETTINGS” option enables the operator to maintain information
with regards to taking samples and readings.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 2” to display the “UTILITIES” menu.

3) Press “KEY 4” to select settings and the following screen will be

displayed:

4) The following instrument settings man be maintained:

Setting Use

1 Prompt ID Press “KEY 1” to prompt for ID code for each sample reading,

answer YES or NO accordingly.

2 Temperature Press “KEY 2” to enter the default unit temperature, choosing

from °C or °F.

3 Date Press “KEY 3” to switch the date format between DD/MM/YY and

MM/DD/YY formats.

4 Auto Off Press “KEY 4” to auto switch off the instrument when not in use.

Toggle between Auto Off: YES or NO. If set to YES, the instru­ment will switch off after 10 minutes if not in use.

5.9.2.5 Flow Fail

The “FLOW FAIL” option enables the operator to adjust the instrument

fl ow fail detection point should it fail in normal operation with a clean
fi lter.

The instrument’s internal pump can be stalled when pulling against
a vacuum or through a blocked fi lter. This is indicated by a fl ashing
pump icon; to prevent damage to the pump, the pump will switch off
after a few seconds.

Instruction 19-9339 22

CO2 Analyzers 3100 & 3150

Press the ‘Pump’ key again to remove the fl ashing pump icon

NOTE: Dirty or discolored fi lters should be changed before

use. Filters that have drawn in water should be changed
immediately to prevent damage to the instrument.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 2” to display the “UTILITIES” menu.

3) Press “KEY 5” to select fl ow fail and the following screen will be

displayed:

4) Use the Scroll keys to adjust the value displayed. The larger the

value, the less sensitive the fl ow fail detection will be.

5) Press the soft-key “ACCEPT” or “REJECT” accordingly.

Follow the following fl ow chart to determine the proper setting for the
Flow Fail Alarm.

Instruction 19-9339 23

CO2 Analyzers 3100 & 3150

Instruction 19-9339 24

CO2 Analyzers 3100 & 3150

5.9.2.6 Logging

Data logging mode can be started or stopped via “KEY 6 - LOGGING”
which is accessed from the “UTILITIES” menu. Press “KEY 4 ­START/STOP LOGGING” to start and stop data logging.

While in data logging mode, the instrument will automatically record
data at the pre-set intervals including running the pump for a preset
time period. Active logging mode is indicated on the “MAIN READ
SCREEN” by its icon. The operator is able to edit the default ID,
pump run-time, interval, and start/stop logging.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 6” to display the “LOGGING” menu and the following

screen will be displayed:

3) Select the desired option by pressing keys “1” through “4”. Then

enter the appropriate setting using the keypad followed by the
“ENTER” key.

Setting Use

1 Every 00 mins. Press “KEY 1” to enter the time in minutes for the timeframe

between sample readings. The interval controls the reading
frequency in minutes, i.e. every 10 minutes.

2 Pump 00 secs. Press “KEY 2” to enter the time in seconds for the length of

time you wish the pump to run when taking a sample read­ing. The pump run-time is the time in seconds for which the
pump runs prior to the reading being stored. This fi gure will
also need to take into account the length of sample tube and
the volume of the sample gas. For example, there is little
point setting a pump run-time of 10 seconds if it takes 30
seconds to draw in a new sample.

3 ID 00000000 Press “KEY 3” to create an 8-digit numeric ID code.

4 Start/Stop Logging Press “KEY 4” to start and stop data logging.

NOTE: Data logging mode is automatically stopped when the

instrument is switched off or the logging parameters are
edited.

Instruction 19-9339 25

CO2 Analyzers 3100 & 3150

5.9.2.7 Reset

The instrument can be reset by pressing “KEY 7 - RESET” accessed

via the “UTILITIES” menu. Selecting this option will clear all user

settings and any stored data including the event log.

A confi rmation code (12345678) must be entered to confi rm that a
reset is initiated.

5.9.3 Calibration

The instrument is fully calibrated during manufacture and when
returned for service. However, to improve accuracy between services,
a user/fi eld calibration can be performed.

NOTE: For further information please refer to Section 7.0 Calibration.

5.9.4 View Data

The “VIEW DATA” option enables the operator to view the stored
readings.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

2) Press “KEY 4” to view stored data readings and the following

screens will be displayed:

3) Press KEY 4 - SCROLL LEFT” and “KEY 6 - SCROLL RIGHT” to

move through the stored readings either forwards or backwards.
Press “KEY 2 - SCROLL UP” and “KEY 8 - SCROLL DOWN” to
switch between the fi rst (CO

, O2, & Baro) and seconds (T1, T2, &

2

humidity) group of reading parameters.

Instruction 19-9339 26

CO2 Analyzers 3100 & 3150

4) Press the soft-key “MORE” to refi ne or fi lter the readings to view.

Setting Use

1 Delete All Enables the operator to delete all the readings stored, (see below).

2 Filter Used to refi ne/fi lter the range of readings displayed by ID or date

ranges. Press between two dates, after a date, before a date, or all
dates.

3 Go To Enables the operator to jump to the fi rst or last reading in the memory

or any other reading.

5.9.4.1 Clear Reading Memory

The “CLEAR READING MEMORY” function enables the user to check
how many readings have previously been taken and clear them if
necessary.

NOTE: Before readings are actually deleted, a caution message is

displayed; once readings have been deleted they cannot be
recovered.

The instrument can store up to 1000 readings. The reading structure
is fi xed and may contain optional parameters not activated for your
particular instrument confi guration, i.e. oxygen, temperature, and
humidity.

Once the reading memory is full it is not possible to store any more
readings. When the memory is full and the “STORE” key is pressed
or data logging is activated, the instrument will show a brief message
stating that the memory is full and that no further data will be recorded.

1) From the “MAIN READ SCREEN” press the “MENU” key on the

instrument panel.

Instruction 19-9339 27

CO2 Analyzers 3100 & 3150

2) Press “KEY 4” to view data.

3) To clear the readings press the soft-key “MORE” followed by “KEY

1 - DELETE ALL.”

5.9.5 Diagnostics

The “DIAGNOSTICS” option enables remote technical support to
identify and resolve issues with the instrument and readings. If
required, the operator may be asked to confi rm the diagnostics
displayed.

1) From the “MAIN READ SCREEN” press the “MENU” key.

2) Press “KEY 5” to view diagnostics.

NOTE: For further information contact your nearest Bacharach

Service Center.

5.10 Warning and Error Codes

When switched on, the instrument will perform a predetermined
self-test sequence taking approximately 60 seconds. During this
time, many of the instrument’s working parameters and settings are
checked. If any operational parameters are out of specifi cation or
if the pre-programmed recommended calibration / service date has
passed, errors or warnings may be displayed.

NOTE: For further information please refer to Section 8.0 Problem

Solving.

5.11 Battery / Charging

The battery used in the instrument is a 2 Ah Lithium-Ion cell. The
instrument must be charged using the power supply supplied with your
instrument.

NOTE: Although the instrument can be powered via the USB

connecter, it cannot be charged via USB.

Instruction 19-9339 28

CO2 Analyzers 3100 & 3150

When plugged into the charger, the instrument light will power on and
display charging. When complete, the display will change to show
that the instrument is charged. To switch the instrument on while
charging or charged is displayed, the operator will need to switch the
instrument off and then on again.

NOTE: A full charge will take approximately 3 hours. Typically, a fully

charged battery will last 8-10 hours.

When the instrument is already powered on the battery icon changes
to a fl ashing plug symbol. This will stop fl ashing when the charge is
complete.

Instruction 19-9339 29

CO2 Analyzers 3100 & 3150

6.0 Taking Readings

6.1 Preliminary Checks - Best Practice

Prior to use, it is good practice to ensure that:

Step 1 The instrument has the correct time and date set.
Step 2 The sample fi lter is fi tted and that it is clean and dry.
Step 3 The battery has a good charge (minimum 25% charge, even if only a few

readings are required).

Step 4 The memory has suffi cient space available.
Step 5 The main gases have been auto-zeroed, without gas concentration present.
Step 6 If necessary, check the span calibration with a known concentration calibra-

tion-check gas.

Step 7 Take readings.

• DO protect the instrument from strong direct sunlight which could

raise the temperature of the instrument beyond its operating range.

• DO remember to always use the sample fi lter! If the sample fi lter

becomes fl ooded, change it and ensure all sample tubes are clean
and dry before re-use.

• DO NOT place the instrument against anything hot as this may

cause excessive internal temperatures which can lead to erroneous
readings.

• DO NOT get the instrument wet.

6.2 Gas Measurement Process

Depending on preferences, the exact reading procedure can change.
The following method is considered best practice and when followed
correctly will allow quick and consistent readings to be recorded.

1) When the instrument is fi rst switched on it should be purged with

fresh air and allowed to stabilize for a few minutes.

2) At this point the user must zero the CO

available via the “CALIBRATION” menu. The instrument is now
ready to take the fi rst reading.

Instruction 19-9339 30

channel. This option is

2

CO2 Analyzers 3100 & 3150

3) Connect the sample tube, if relevent (always use the sample fi lter)

from the sample point to the inlet port of the instrument, ensuring
that the fi lter is seated correctly.

4) Press the “PUMP” key to draw a sample into the instrument. Notice

the main gas readings start to change. It is recommended to run
the pump until the gas readings have stabilized (approximately 30
seconds) then press the soft-key “STORE” if desired.

5) The pump will stop and the operator will be prompted to enter an

ID code to identify the reading. Press the “ENTER” button. A
“READING STORED” confi rmation message will be displayed
briefl y before returning to the “MAIN READ SCREEN.”

NOTE: The ID code prompt can be switched on or off. This option

is accessed via the “SETTINGS” menu, then press “KEY 1

- PROMPT FOR ID: YES OR NO.” If the ID prompt is set to
“NO” the reading is stored using the default logging ID.

6) After each reading the instrument should be purged with fresh air.

7) Disconnect the sample tube from the instrument. Turn the pump

ON. Then run the pump for a minimum of 30 seconds. The gas
readings should return to nominal values for fresh air.

Regardless of the instrument confi guration, the following data will be
stored for each reading:

• ID code (8characters)

• Reading Type (0=User, 1=Auto, 2=Peak, 3=Hold)

• Current time / date

• Gas readings (CO

, O2)

2

• Sample Pressure (for indication only)

• Temperature (Optional)

• Humidity (Optional)

Instruction 19-9339 31

CO2 Analyzers 3100 & 3150

6.3 Alternative Reading Methods

There are three other reading types or methods which each require
slightly different operating procedures.

• Logged reading

• Peak reading

• Hold reading

6.3.1 Logged Reading

Logged readings need to be confi gured and initiated via the
“UTILITIES” menu by pressing “KEY 6.” During confi guration, the user
will be asked to supply an ID, reading interval, and pump run-time.

These parameters are used to control the reading frequency in
logging mode. Once logging mode is activated, the instrument will
automatically record a reading at every interval until stopped by the
operator or the memory becomes full. Logging is also suspended
temporarily while the user is accessing the menu options.

While the logging mode is active, both the “PUMP” and “STORE” key
will be deactivated. Only logged readings can be stored.

6.3.2 Peak Reading

The operator can toggle the reading mode between normal (current)
and peak readings. While in peak reading mode, the instrument will
only display peak values for each of the channels. These values can
then be stored by pressing the “STORE” key or automatically at the
appropriate logging interval (if logging is enabled).

The peak value is reset after a reading is stored or by exiting the peak
mode using the appropriate soft-key. The current mode of operation
can be identifi ed by the status of the soft-key, either “NORMAL” or
“INVERSE”, where inverse indicates peak mode is active.

6.3.3 Hold Reading

The “HOLD READING” option allows the user to freeze the currently
displayed reading. This allows it to be manually recorded or moved
away from the sample point. Once activated, press the soft-key
“HOLD” and the readings are fi xed until the “HOLD” key is pressed
again or by storing the reading.

Instruction 19-9339 32

CO2 Analyzers 3100 & 3150

7.0 Calibration

7.1 User Calibration

The instrument is fully calibrated during manufacture and when
returned for service. However, to improve accuracy between services,
a user / fi eld calibration can be performed.

User calibration is a means of optimizing the performance of the
instrument to the current operating conditions, such as ambient
temperature and pressure, as well as correcting for instrument drift
caused by lamp and fi lter settling.

In general, the instrument should not require calibration more than
once a month, but we do recommend verifying the instrument’s
operation each day

User calibration has two operations and each may be performed
individually, however, for a complete user calibration both must be
completed.

This section describes the correct procedures to achieve an accurate
user calibration.

NOTE: If the calibration is completed incorrectly it may decrease the

accuracy of the instrument.

Two important terms that are used within this section are “Zero” and
“Span.”

Zero: The point at which the instrument is calibrated when there

is no gas present.

Span: The point at which the instrument is calibrated when a

known quantity of the target gas is present.

Instruction 19-9339 33

CO2 Analyzers 3100 & 3150

7.2 Calibration Gases

User calibration of the instrument will improve the data accuracy in
the range of the calibrated gases used. However, it may cause less
accurate readings of concentrations outside this calibrated range.
Users should select the correct calibration gas for the expected gas
levels on their particular application. Only use gases with a known
certifi ed gas concentration.

NOTE: Certifi ed calibration gases can be supplied by Bacharach.

Warning: For each gas used the appropriate material safety

data sheet must be read and understood before proceeding.
Calibration gases and the use of pressure regulators can be
dangerous.

7.3 Calibration Set-Up

The regulator supplied with the calibration kit has been confi gured
to deliver a fi xed fl ow. It only requires a few turns to open and no
adjustment is necessary.

Warning: When the instrument is being calibrated there are

two possible exits for the gas; via the usual manner out of the
exhaust port of the instrument or via the port on the pressure
relief valve. It is recommended that both ports have exhaust
tubing attached. The exhaust tubing must emerge in a well­vented area. Ensure that there are no leaks in the tubing
connections. The calibration should always be carried out in a
safe area with all necessary precautions taken as all pressurized
gases are potentially dangerous.

Instruction 19-9339 34

CO2 Analyzers 3100 & 3150

7.4 Calibration Equipment

The diagram below displays the regulator and tubing equipment for
user calibration:

Calibration Kits are available through Bacharach Inc.

Calibration Kit: P/N 19-8027
Cylinder of N
Cylinder of 5% CO
Cylinder of 2500 ppm CO

Gas: P/N 23-4003

2

Gas: P/N 24-1126 (Model 3100)

2

Gas: P/N 24-1130 ( Model 3150)

2

• Contact your nearest Bacharach Service Center for further
information.

• The regulator supplied with the calibration kit is recommended as
fl ow and pressure rates are factory set.

• A relief valve is not supplied with the kit but is recommended in
addition to the supplied regulator for improved fl ow.

Instruction 19-9339 35

CO2 Analyzers 3100 & 3150

7.5 Calibration Method

Before you begin, ensure that the unit is stabilized at its working
temperature before performing any of the calibration operations.

To achieve the processes set out in this section, press “KEY 3 ­CALIBRATION” from the “MAIN” menu. The fi rst screen displayed
provides the option to select the gas that requires calibration.

The exact calibration method can vary depending on the gases used.

7.5.1 Zero CO

For maximum accuracy it is recommended that the CO
zeroed using bottled gas (certifi ed 100% N

Channel

2

2

).

channel is

2

If nitrogen is not available the user can select the option to perform an
air calibration. This option assumes that the user has access to fresh
air at around 390 ppm CO

. Generally, this can be found outside or in

2

a well ventilated corridor (typically, an offi ce lab would have a higher
CO

concentration).

2

To zero the CO

1) From the “CALIBRATION” menu press “KEY 2 - CO

channel, perfom the following:

2

CHANNEL.”

2

Instruction 19-9339 36

CO2 Analyzers 3100 & 3150

2) Press either “KEY 1 - ZERO WITH N2” (recommended) or “KEY 2 ­ZERO WITH AIR” from the menu. Then, either attach the 100% N

2

or sample pipe to allow access to fresh air.

3) Press the “START” key. The instrument will now wait approximately
60 seconds for the gas reading to stabilize at the correct level.
Ensure the pump is on (pump icon appears in lower middle of
screen when on).

4) The instrument will then indicate a successful zero has been
completed. Press the soft-key “ACCEPT” to confi rm the calibration
and “STORE” the new user offset. Alternatively, select the soft-key
“REJECT” to exit without change.

NOTE: Typical zero calibration, although displaying zero, needs to be

given time to settle. We recommend accepting the calibration

at least fi ve minutes after the display concentration stabilizes.

NOTE: If the calibration failed, purge and try again or select a

different air source.

NOTE: If using the Analyzer 3150 - very high concentrations of CO

may take up to 30 minutes to purge completely.

7.5.2 Span CO

Channel

2

It is recommended that the instrument is spanned to target the desired

reading range (e.g. 5%); ideally this should not be a low level close to

zero.

1) If not already preset, enter the span target (i.e. certifi ed
concentration of your calibration gas) by pressing “KEY 1” and then
entering the new desired value followed by ENTER. Then attach
the gas and open the regulator valve to allow the gas to fl ow.

2) Press the “START” key and wait for the reading to stabilize. This
can take a couple of minutes. Ensure the pump is on (pump icon
appears in lower middle of screen when on).

2

Instruction 19-9339 37

CO2 Analyzers 3100 & 3150

3) Once a stable reading is shown, press the soft-key “ACCEPT.”
A successful span calibration message will then be displayed.
Press the soft-key “ACCEPT” again to confi rm the calibration
and “STORE” the new user span. Alternatively, press soft-key
“REJECT” to exit without change.

NOTE: If the calibration failed then try again using a longer purge

time or different target gas.

7.5.3 Zero O

It is not necessary to zero the O

Channel

2

channel. A span calibration should

2

correct the reading across the entire range.

7.5.4 Span O

It is recommended that the O

Channel

2

channel is spanned in fresh air with

2

a target concentration of 20.9%, although other gases and target
concentrations can be used if required.

1) If not already preset, enter the span target (i.e. certifi ed
concentration of your calibration gas) by pressing “KEY 1” followed
by the desired value. Press ENTER to store.

2) Press the soft-key “START” and wait for the reading to stabilize.
Press the “PUMP” key to draw in fresh air. It can take a couple of
minutes to stabilize.

3) Once a stable reading is shown press the soft-key “ACCEPT.” A
successful span calibration message should then be displayed.
Press the soft-key “ACCEPT” again to confi rm the calibration and
“STORE” the new user span. Alternatively, press the soft-key
“REJECT” to exit without change.

NOTE: If the calibration failed then try again using a longer purge

time or different target gas.

Instruction 19-9339 38

CO2 Analyzers 3100 & 3150

7.5.5 Reset Factory Settings

This option will reset the instrument to its factory programmed
calibration characteristics and will clear the user calibration points for
both gas channels.

1) To reset to factory settings, press “KEY 1 - FACTORY RESET” from
the “CALIBRATION” menu.

2) To prevent the user calibration data being accidently erased the
user must confi rm the action by pressing the soft-key “ACCEPT” or
soft-key “REJECT” to exit without change.

7.6 Last Field Calibration

This data can be found in the “INFORMATION” screen accessed via
the “UTILITIES” menu. This option displays the date that the last fi eld
calibration was performed on the instrument.

7.7 Calibration Record

The CO2 instruments have the facility to log user calibrations via
the “EVENT LOG.” This can be used as an aid in ensuring that gas
measurements are valid and accurate.

During calibration the instrument will record the following in the event
log. For each entry the time and date will be stored.

Instruction 19-9339 39

Event Data Recorded

CO2 Analyzers 3100 & 3150

Successful User Zero CO

Successful User Span CO

Successful User Span O

Failed User Zero CO

Failed User Span CO

Failed User Span O

2

2

2

2

2

2

Type (N2 or Air) and Readings Before and After

Target Value, Readings Before and After

Target Value, Readings Before and After

Type (N2 or Air) and Reading

Target Value, Gas Reading

Target Value, Gas Reading

Return to Factory Settings

NOTE: If the calibration failed, then try again using a longer purge

time or different target gas. This event log can only be
downloaded and viewed via the optional software. It cannot
be viewed on the analyzer screen.

Instruction 19-9339 40

CO2 Analyzers 3100 & 3150

8.0 Problem Solving

This section outlines various warning and error messages which the
operator may receive during general operation of the instrument. For
further assistance please contact your nearest Bacharach Service
Center.

8.1 Warnings and Errors

When switched on, the instrument will perform a predetermined
self-test sequence taking approximately 60 seconds. During this
time many of the instrument’s working parameters and settings are
checked.

If any operational parameters are out of specifi cation or if the pre-
programmed recommended calibration / service date has passed,
errors or warnings may be displayed.

Use the “SCROLL UP” and “SCROLL DOWN” keys to move through
the list if required.

There are two types of warning that may be displayed:

• General warnings that may not affect the instrument’s function and

those where the self-test has detected a function that is outside of
the usual operating criteria, e.g. battery charge low, memory nearly
full.

• Operational parameters that could affect the performance of the

instrument, e.g. CO2 out of calibration.

The most likely reason for these errors is either an incorrect user
calibration, or may indicate sensor failure. If an incorrect user
calibration has caused the warning it should be correctable by the way
of returning the instrument to factory settings, zeroing or carrying out a
user calibration as necessary for the relevant function.

Instruction 19-9339 41

CO2 Analyzers 3100 & 3150

Under and Over Range Codes

If a reading is over range (i.e. above the maximum allowed reading)
it will be displayed with ‘more than’ chevrons (>>.>). This can occur
if a channel has been incorrectly calibrated or the sample gas has
exceeded its specifi ed range (e.g. CO

>20%).

2

If a reading is under range (i.e. below zero) it will be displayed with
‘less than’ chevrons (<<.<). Refer to Section 7.0 Calibration to remedy
under-range by performing a user zero.

A number displayed as asteriks (**.*) indicates an error, usually where
the instrument has been unable to complete a particular calculation.
Typically, this will be the fi rst indication of a fault condition.

Where no data is available, dashes (--.-) are displayed. This usually
occurs when a particular reading or parameter has been skipped by
the user, or where an optional accessory is not fi tted correctly, i.e. a
temperature probe.

8.2 Self-Test Warning Messages

The following warnings may be displayed during the self-test period
when the instrument is switched ON.

Warning Description

Check Memory The instrument only has space to store less than 50 readings

before it is full. The exact number can be checked using the “VIEW
READINGS” option.

Memory Full There is no more space in memory to store readings. Both the

store and log options will be disabled until the memory is cleared.
The readings should be downloaded to PC using the optional soft­ware before memory is cleared.

Battery Low The instrument does not have enough power to operate for a full

day. The instrument should be recharged or connected to an exter­nal power supply.

Service Due It has been 12 months (or more) since your instrument was

returned to the manufacturer for a service. The performance and
accuracy of the instrument may be impaired.

Low Flow The instrument’s gas inlet (or outlet) may be blocked. This warning

is most commonly caused by a water-logged or dirty sample fi lter.
Change the sample fi lter and check for obvious blockages in the
sample tubes.

Instruction 19-9339 42

CO2 Analyzers 3100 & 3150

Check CO2 Cal. This warning is most commonly caused by an incorrect user cali-

bration. Try recalibrating the sensor or press “RETURN TO FAC­TORY SETTINGS.” If the warning persists it may be caused by
dirt or damage to the infrared sensor. The instrument will need to
be returned to your nearest Bacharach Service Center for service
/ repair.

Check O

Ref. Fault This may be caused by dirt or damage to the infrared sensor in the

*Invalid Confi g. The instrument has detected a problem with the confi guration

Change O

Change Pump The pump has exceeded its recommended run-time and should be

Change Battery The Lithium Ion battery has exceeded its recommende life-time or

Cal. This warning is most commonly caused by an incorrect user cali-

2

Cell The oxygen cell has not been changed for at least 2 years; its

2

bration. Try re-calibrating the sensor or press “RETURN TO FAC­TORY SETTINGS.” If the warning persists it may be caused by a
damaged or faulty sensor. The instrument will need to be returned
to your nearest Bacharach Service Center for service / repair.

instrument. The instrument will need to be returned to your nearest
Bacharach Service Center for repair.

parameters. The instrument will need to be returned to your near­est Bacharach Service Center for service / repair. Most likely to be
caused after fi rmware update.

performance and accuracy may be impaired. The instrument will
need to be returned to your nearest Bacharach Service Center for
service.

changed. The instrument will need to be returned to your nearest
Bacharach Service Center for service.

number of charge cycles and should be changed. The instrument
will need to be returned to your nearest Bacharach Service Center
for service.

User Cal. Due If has been over a month since the instrument was last user cali-

brated. For optimal performance and accuracy it is recommended
that the instrument is user calibrated each time it is used.

Invalid Time The instrument has an invalid time. This is most likely to occur af-

ter a reset. The correct time should be enterd using the set “TIME
& DATE” option via the “UTILITIES” menu.

Invalid Date The instrument has an invalid date. This is most likely to occur af-

ter a reset. The correct date should be entered using the set “TIME
& DATE” option via the “UTILITIES” menu.

Baro. Fault The instrument has detected a fault with the barometric sensor

of its calibration. This will have an effect on the accuracy of the
readings as they are pressure compensated. The instrument will
need to be returned to your nearest Bacharach Service Center for
service.

NOTE: Certain confi guration problems can be corrected remotely.

Using the PC software, it is possible to export the current
confi guration and e-mail it to a Bacharach Service Center.
Depending on the error it may be possible to correct the
confi guration fi le and import it back into the instrument.

Instruction 19-9339 43

CO2 Analyzers 3100 & 3150

8.3 User Calibration Trouble Shooting

Error Remedy

User Zero Failed A possible reason for this is because the instrument is trying to

zero to a level which is outside the predetermined range set when
the unit was calibrated at the factory. To rectify this, fi rst ensure
the unit contains absolutely none of the gas which is being zeroed
by fl ushing thoroughly with nitrogen. If it will not zero, then refer to
the instructions given in the “FACTORY SETTINGS” section. If the
instrument continues to fail to zero then the unit must be returned to
your nearest Bacharach Service Center for investigation.

Calibration Failed Check that the span target is set to the correct value. If not, cor-

rect and retry spanning the channel. Repeat the entire procedure,
including zeroing the channel, and then calibrate the span. Ensure
that the reading is stable before spanning the channel.

8.4 Cross-Gas Effects

Carbon Dioxide is measured by infrared absorption at a wavelength
specifi c to carbon dioxide. Therefore, the carbon dioxide reading will
not be affected by any other gases. The oxygen sensor is a galvanic
cell type and suffers virtually no infl uence from CO
SO

, or H2, unlike many other types of oxygen cell.

2

, CO, H2S, NO2,

2

8.5 Hardware Reset

If for any reason the instrument ‘locks up’ and will not switch off, it is
possible to force a hardware reset. Press and hold the “ON/OFF” key
for 10 seconds; wait at least 15 seconds and the instrument should
restart automatically.

NOTE: Performing a hardware reset may cause loss or corruption of

currently stored data including the time and date.

Instruction 19-9339 44

CO2 Analyzers 3100 & 3150

9.0 Service

The instrument should be regularly serviced to ensure correct
operation and accurate readings. Bacharach recommends a full
service and factory calibration every 12 months.

Depending on usage, the O

cell should be replaced every 2-3 years.

2

User Serviceable Parts

NOTE: There are no user serviceable parts inside of the instrument.

Please do not attempt any repair as this may void the
warranty.

The following parts are supplied and can be user serviced:

Sample Filter This should be regularly inspected for damage or discoloration

and changed if needed. The instrument should never be operated
without the sample fi lter as this may result in water or dust entering
the instrument. The fi lter should be changed immediately if water
can be seen.

Sample Tubing Always ensure that the sample tubes are not contaminated or dam-

aged.

Instruction 19-9339 45

CO2 Analyzers 3100 & 3150

10.0 Warranty Policy

This instrument is guaranteed, to the original end user purchaser,
against defect in materials and workmanship for a period of 12 months
from the date of the shipment.

This period covers repair or replacement of defective parts on an
exchange basis.

The decision to repair or replace will be determined by Bacharach Inc.

To maintain this warranty, the purchaser must perform maintenance
and calibration as prescribed in the operating manual.

Normal wear and tear, and parts damaged by abuse, misuse,
negligence, or accidents are specifi cally excluded from the warranty.

NOTE: Please contact your nearest Bacharach Service Center for

further information.

Instruction 19-9339 46

CO2 Analyzers 3100 & 3150

11.0 Technical Specifi cation

Power Supply

Battery Type Lithium Ion

Battery Life 10 Hours (8 hours with pump)

Battery Lifetime >300 Cycles

Battery Charger 5V DC external power supply and internal charging circuit

Charge Time 3 Hours

Alternative Power USB connector (run only)

DC Power Supply (run + charge)

Gas Ranges

Gases Measured CO2 By custom dual wavelength infrared cell

with reference channel

(Optional) By internal electrochemical cell

O

2

Oxygen Cell Lifetime Approximately 3 Years in Air

Range CO

CO2
O2

Measurement Accuracy

CO

(Model 3100)

O

Measurement Accuracy

CO

(Model 3150)

O

Response Time, T

90

CO
O

2

0 - 20% (Model 3100)
0 - 10,000 PPM (Model 3150)
0 - 100%

2

Accuracy: ±(1% of range +2% of read-

ing) at reference conditions

1

Temperature dependence: ±0.2% read-

ing /°C (typical at 5% CO2)

Pressure Dependence: ±0.02% of read-

ing/hPa (typical at 5% CO

2

±1.0% Full Scale at constant temperature

)

2

and pressure
±2.0% Full Scale over operating tem­perature range

2

Accuracy: ±(1.5% of range +2% of read­ing) at reference conditions

1

Temperature dependence: ± 0.2% °C

(typical at 1000 ppm CO2)

Pressure Dependence: ± 0.02% of

reading/hPa (typical at 1000 ppm CO

2

±1.0% Full Scale at constant tempera-

)

2

ture and pressure
±2.0% Full Scale over operating tem­perature range

2

2

≤20 seconds
≤60 seconds

1

Conditions during factory calibration, typically 68 °F, 29.5 inHg

Instruction 19-9339 47

CO2 Analyzers 3100 & 3150

Characteristics

Temperature (optional) 32 to 122 °F (0 to 50.0 °C)

Temperature accuracy, typical ±0.36°F from 89.6 to 111.2 °F, ±0.9°F over the rest of

the range (±0.2°C from 32 to 44 °C, ±0.5°C over the
rest of the range)

Barometric Pressure 23.6 to 35.4 inHg (800 to 1200 mbar)

RH Measurement (Optional) 0 to 100% non-condensing

RH Accuracy ±1.5% across range

Visual and Audible Alarm User-selectable CO

Communications USB type B mini-connector, HID device class

Data Storage 1000 readings + 270 events

and O2 alarm levels

2

Pump

Flow 100 cc/min (typical); 60 cc/min (minimum)

Environmental Conditions

Operating Temperature range 41 to 104°F (5 to 40°C)

Relative Humidity 0 to 95% non-condensing (RH probe 0 to 100% non-

condensing)

Barometric Pressure ±14.8 inHg from calibration pressure (±500 mbar)

Physical Features

Weight 18 oz (495 grams)

Size L 6.5” x W 4” x D 2.2” (L 165mm x W 100mm x D 55mm)

Case Material ABS / Polypropylene with Silicone Rubber Inserts

Keys 17 Resin capped Silicone rubber keys

Display Liquid crystal display, 128 x 64 pixel with RGB LED back-light

Gas sample fi lters Built-in gas dryer tube to remove moisture

NOTE: Specifi cations are subject to change without notice.

Instruction 19-9339 48

User-replaceable PTFE water fi lter

CO2 Analyzers 3100 & 3150

12.0 Event Log

The following events are recorded in the instrument’s event log. The
event log can only be downloaded using the additional PC software.
Please refer to the PC software manual for further details.

Event Data

Cold Start / Reset Type of start (MCUSR, boot_key)

Firmware Version Description

Set Time Before and After

Set Date Before and After

Re-Flash Requested Type

Restore to Factory Settings Type

Comms Clear Memory Type 0=Readings, 1=Event Log

Change Contrast Before and After

Change Flow Fail Current Limit Before and After

Battery Less Than Critical Voltage Critical, Actual

RTC Date/Time Invalid None

Factory Calibration Invalid or Overdue Date, Difference

Service Invalid or Overdue Date, Difference

Power ON Self-Test, Sensor Out of Range Channel, Reading, Limit

User Calibration Set Zero OK Before, After

User Calibration Set Span OK Target, Before, After

User Calibration Set Zero Failed Target, Reading

User Calibration Set Span Failed Target, Reading

Attempt to Store when Readings Memory
Full

Readings Memory Nearly Full Limit, Actual

Change Logging Mode Status, Interval, Pump time

Change Logging Mode ID ID

Flow Fail Current Limit Exceeded Limit, Actual

Max

Instruction 19-9339 49

CO2 Analyzers 3100 & 3150

13.0 Important Notice to All Customers

The trash can symbol now displayed on equipment supplied signifi es
that the apparatus MUST NOT be disposed of through the normal
municipal waste stream but through a registered recycling scheme.

The Waste Electrical and Electronic Equipment directive (WEEE)
makes producers responsible from July 1st 2007 in meeting their
obligations, with the fundamental aim of reducing the environmental
impact of electrical and electronic equipment at the end of its life.

The OEM is now registered as a producer and has joined a recycling
scheme provider who will manage and report on our electrical waste
on our behalf.

Producer Registration Number is WEE/GB0052TQ

So when your instrument is at the end of its life, please contact you
nearest Bacharach Service Center who will advise you on the next
step in order to help us meet our obligations.

Instruction 19-9339 50

CO2 Analyzers 3100 & 3150

14.0 Glossary of Terms

Analyzer error messages For a list of standard error codes and for more

information, please refer to Section 8.0 Problem

Solving.

Analyzer warnings There are two types of warning messages dis-

played; general warnings that may not necessar­ily affect the instrument’s function, for example
battery power low, and operational parameters that
could affect the performance of the analyzer, for
example CO

Battery charge A full battery charge will take approximately three

hours.

Calibration The process that an instrument will undergo to

enable it to measure and display the various
parameters in accordance with the manufacturer’s
specifi cation.

Chemical cell Type of gas detector which can be fi tted internally

to the analyzer at the time of manufacture.

out of calibration.

2

Clean air purge Process used to clear out gas from the inlet pipe

and the analyzer’s gas sensors prior to taking a
new reading.

CO

2

Carbon dioxide gas.

Contrast adjustment Adjustable setting which darkens or lightens the

text displayed on the screen. Typically, this is
used to compensate for different environmental
temperatures. High temperature causes the
display to darken and low temperature causes the
display to lighten.

Data logging A mode of operation that enables the user to

leave the analyzer unattended to take readings
automatically at predetermined times. The reading
interval and pump run-time may be adjusted prior
to commencing the logging cycle.

Download Terminology used to describe the transfer of

data from the analyzer to a PC via the optional
software.

PC software The optional software enables the user to

maximize the operation of the incubator analyzer.
Instrument readings and event log data may be
installed to a PC for further analysis and exported
to other applications such as MS Excel.

Instruction 19-9339 51

CO2 Analyzers 3100 & 3150

Event log Record of signifi cant events in the life of the ana-

lyzer. Used as an aid to monitoring the use of the
analyzer. It can also be used as a diagnostic tool
if there is a problem with the analyzer. The event
log can be viewed via the optional software. It
cannot be viewed on the analyzer screen.

Exhaust port The point at which the gas exits the analyzer. This

is located on the top of the analyzer. It is threaded
to take an M5 hose-barb to allow an exhaust tube
to be attached if required.

Exhaust tube Clear plastic tubing used to route gases from the

exhaust port.

Factory settings Default calibration settings preset at time of factory

calibration.

Firmware Firmware is the name given to the analyzer’s inter-

nal software. This can be programmed using the
re-fl ash command via the optional software. The
latest software release can be downloaded from
the Geotech website. It is also automatically up­dated when the analyzer is returned for servicing.

General warnings Displayed throughout the documentation with a

warning symbol. Warning information may affect
the safety of users.

Inlet port Port located on the top of the analyzer to which the

inlet tube is attached.

LCD display Liquid Crystal Display. Fitted to the front panel of

the analyzer.

Main read screen The main analyzer screen for normal operations

and all operations are carried out from this screen.

Memory Tha analyzer memory should not be used as a

permanent storage medium and data collected
should be transferred using the optional PC
software.

Moisture removal tube Device used to remove water vapor from the

sample gas. This is located at the back of the
analyzer and should not be covered or partially
covered. This is not user serviceable and should
NOT be removed by the user.

O

2

Oxygen gas typically 20.9% in air, measured via
electro-chemical cell.

Over range codes Over range codes are errors above the maximum

allowed reading and will be displayed with more
than chevrons (>>.>).

PPM Parts per million

Predetermined Set up prior to use via the optional PC software.

Instruction 19-9339 52

CO2 Analyzers 3100 & 3150

Pump The device used to transfer a gas sample into the

instrument where that sample is not under pres­sure. Select the “PUMP” key on the analyzer to
activate.

Regulator fl ow The regulator’s fl ow is factory set. It only requires

a few turns to open, no adjustment is available.

Sample tube Tube used to transfer sample gas from the source

to the analyzer.

Span The point at which the gas analyzer is calibrated

when a known concentration of the target gas is
present.

Temperature probe External device to enable the instrument to display

data and record the temperature readings. This is
an optional feature.

Under range codes Under range codes are errors below zero and will

be displayed with less than chevrons (<<.<).

User calibration Users have the facility to calibrate the analyzer

between services. User calibration of the gas ana­lyzer will improve the data accuracy in the range of
the calibration gases used.

Warm-up self test Predetermined self-test sequence to test the

analyzer functions which takes place after the
analyzer is switched on and lasts approximately
30-40 seconds.

Warranty The instrument is guaranteed against defect in

materials and workmanship for a period of 12
months from the date of shipment to the user and
is subject to the recommended service and recali­bration requirements.

Zero The point at which the gas analyzer is calibrated

when there is non of the target gas present.

15.0 Replacement Parts

Item Description Part Number

Battery Charger with Adapters 19-0610

Sample Tube Kit 19-0613

Temperature Probe (5 mm) 19-0611

Sample Filters (Pack of 5) 19-0612

PC Software 19-0614

Calibration Kit 19-8027

Cylinder of N

Cylinder of 5% CO

Gas 23-4003

2

(for Model 3100) 24-1126

2

Cylinder of 2,500 ppm CO2 (for Model 3150) 24-1130

Instruction 19-9339 53

16.0 Service Centers

United States

Bacharach, Inc.
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: [phone]
Toll Free: 1-800-736-4666
Fax: [phone]
Email: [e-mail]

Canada

Bacharach of Canada, Inc.
250 Shields Court Unit #3
Markham, Ontario L3R 9W7 Canada
Phone: [phone]
Fax: [phone]
Email: [e-mail]

CO2 Analyzers 3100 & 3150

México

Bacharach de México
Playa Regatas No. 473 Tercer Piso
Col. Militar Marte
Delegación Iztacalco, 08830
México D.F. México
Phones:[phone]
[phone]
FAX: [phone]
Email: [e-mail]

Instruction 19-9339 54

CO2 Analyzers 3100 & 3150

Instruction 19-9339 55

621 Hunt Valley Circle, New Kensington, PA 15068

Ph: 724-334-5000 • Fax: [phone] • Toll Free: 800-736-4666

Website: www.mybacharach.com • E-mail: [e-mail]