CO2 Analyzer
2810/2815/2820
Instruction 19-9222
Operation & Maintenance
Rev. 8 – March 2003
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Product Leadership • Training • Service • Reliability
WARRANTY
Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from
defects in material and manufacture and will conform substantially to Bacharach Inc.’s
applicable specifications. Bacharach’s liability and Buyer’s remedy under this warranty
are limited to the repair or replacement, at Bacharach’s option, of this Product or parts
thereof returned to Seller at the factory of manufacture 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 Bacharach, 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, INCLUDING
WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY OBLIGATION, LIABILITY,
RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT, WHETHER OR NOT ARISING
FROM BACHARACH’S NEGLIGENCE, ACTUAL OR IMPLIED. The remedies of the Buyer
shall be limited to those provided herein to the exclusion of any and all other remedies
including, without limitation incidental or consequential damages. No agreement varying
or extending the foregoing warranties, remedies or this limitation will be binding upon
Bacharach, Inc. unless in writing, signed by a duly authorized officer of Bacharach.
Register Your Warranty by Visiting
www.bacharach-inc.com
Notice:
Product improvements and enhancements are continuous, therefore the specifications and information 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.
BACHARACH® is a registered trademark of Bacharach, Inc.
All other trademarks are the property of their respective owners.
Copyright © 1998–2003, Bacharach, Inc., all rights reserved.
A
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
Contents
1.0
INTRODUCTION................................................................................1
1.1 General ....................................................................................... 1
1.2 Main Features............................................................................ 1
1.3 Units of Measurement ...............................................................1
2.0
OPERATION .......................................................................................2
2.1 Important Note .......................................................................... 2
2.2 Switching the Analyzer ON/OFF .............................................. 2
2.3 Pump Operation (2815/2820) ....................................................3
2.4 Pump Contamination (2815/2820) ............................................ 3
2.5 High Humidity Gas Sampling (2820) ....................................... 3
2.6 Storing Readings........................................................................ 4
2.7 Battery Low Display .................................................................. 4
2.8 Battery Charge Display.............................................................5
2.9 Backlight .................................................................................... 5
2.10 Audible Gas-Level Tone (2815/2820) ....................................... 5
2.11 Fault Condition Warning .........................................................5
2.12 Powering Analyzer from Charger ............................................ 6
2.13 Troubleshooting for Slow or Low Readings (2820).................. 6
2.14 Testing Incubators (2820).........................................................7
3.0
MAINTENANCE .................................................................................8
3.1 Cleaning....................................................................................... 8
3.2 Sunlight ....................................................................................... 8
3.3 Servicing ...................................................................................... 8
3.4 Software Version / Serial Number ............................................. 8
3.5 Factory Settings .......................................................................... 8
3.6 Battery Charging ........................................................................ 9
3.7 Calibration................................................................................. 10
3.7.1 2810/2815 Calibration Procedure ................................ 10
3.7.1.1 Air Calibration .............................................. 10
3.7.1.2 Gas Calibration ............................................. 12
3.7.2 2820 Calibration Procedure ......................................... 14
3.7.2.1 N2 Calibration ...............................................14
3.7.2.2 Gas Calibration ............................................. 15
4.0
PARTS & SERVICE .........................................................................18
4.1 Replacement Parts and Accessories......................................... 18
4.2 Bacharach Service Centers.......................................................19
Instruction 19-9222
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CO2 Analyzer 2810/2815/2820
Notes:
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Instruction 19-9222
CO2 Analyzer 2810/2815/2820
1.0 INTRODUCTION
1.1
General
Bacharach’s line of CO2 Analyzers are easy to use, but it is essential that
these Operating Instructions be read and understood by all operators
and maintenance personnel prior to using or servicing the instrument.
The 2810/2815/2820 are compact and lightweight Carbon Dioxide analyzers that display the detected level of CO2 in the range of either
0–10,000 ppm (2810/2815) or 0–60% (2820). The analyzer is based on
the infrared-absorption principle to detect the presence of CO2. The 2810
operates by diffusion only, while the 2815/2820 incorporates an internal
pump for drawing in gas samples. Simply turn off the pump and the
2815/2820 samples by diffusion. A sampling tube and particulate filter
are included with the 2815/2820 for remote sampling, while the 2820
also includes a desiccant filter to be used when sampling areas with high
humidity. All analyzers can store gas readings in memory, which can
later be downloaded to a personal computer via its integral IrDA communications link and the optional BACH-COM software.
1.2
Main Features
• Sampling modes:
sample draw (2815/2820) and/or diffusion (2810/2815/2820)
• Automatic compensation for elevation and changes
in barometric pressure
• Variable-pitch tone indicates CO2 level (2815/2820)
• Integral pump (2815/2820)
• Battery capacity display
• Manual (snapshot) and continuous data logging of readings
with time and date stamp
• Memory capacity for approximately 100 snapshot readings and
800 sets of continuous data logged readings
• IrDA link for downloading stored data to a personal computer
• Easy calibration in fresh air
• Run-while-charging capability
1.3
Units of Measurement
Depending the model ordered, the instruments’s LCD shows CO2 concentrations in either parts-per-million (2810/2815) or percent (2820). Please
note that 1% = 10,000 ppm, and 0.01% = 100 ppm.
Instruction 19-9222
1
CO2 Analyzer 2810/2815/2820
2.0 OPERATION
2.1
Important Note
Always ensure that the analyzer’s gas inlet connector (Figure 1, Item C)
and gas exhaust (Figure 1, Item B) are unobstructed and open to the atmosphere. Be careful not to breath directly on the analyzer while taking
a measurement; otherwise, inaccurate CO2 readings will result.
2.2
Switching the Analyzer ON/OFF
Switch ON the analyzer by pressing the button. Switch the analyzer
OFF by pressing the button down for at least 3 seconds, or until the
display goes blank. When first switched on, there is a warm-up period before the CO2 level is displayed – approximately 60 seconds for the 2810/
2815 analyzer, and 20 seconds for the 2820. Note that a normal fresh-air
background reading of CO2 is approximately 340 ppm.
CO2
ANALYZER
ppm CO2
and
then
340
C
B
D
� � � �� � � �� � � �
H
J
% CO2
00.04
A - Digital display
B - Gas exhaust
C - Gas inlet connector
A
I
or
E
F
G
2
3
D - IrDA link
E - Pump ON light
F - Power ON/OFF (2810/2815/2820);
pump ON/OFF (2815/2820)
G - Battery charging socket
H - Store readings (f1)
I - Battery status / calibrate (f2)
J - Backlight (2810/2815/2820);
Audible tone indicating CO2 level
(2815/2820) (f3)
Figure 1. Components of the CO2 Analyzer
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Instruction 19-9222
CO2 Analyzer 2810/2815/2820
2.3
Pump Operation (2815/2820)
With the analyzer already switched on, momentarily pressing the button switches on the pump. Pressing the button again turns the pump
off. The supplied sampling probe and hose assembly can be connected
to the gas inlet connector on the top of the analyzer for drawing in gas
samples from hard-to-reach locations.
Particulate filter P/N 54-0548 is placed on top of the gas inlet to prevent
dust or dirt from being drawn into the instrument. Replace the particulate filter about once a month, or when the filter is contaminated as
evidenced by a slower response time.
Note that the combined sampling hose and probe length should not
exceed 6 feet (1.8 m). Also note that the pump is intended for use only at
normal atmospheric pressure, and is not designed to draw in gas samples
against a vacuum or an obstruction such as a kink in the sampling hose.
If an obstruction or negative-pressure gradient is present, then gas will
not be drawn into the analyzer. Please consult the factory for applications where longer sampling lengths are required, or where it is necessary to draw against a vacuum.
2.4
Pump Contamination (2815/2820)
Over time the pump can become contaminated, leading to a slower
response time and lower readings. To check for pump contamination,
turn on the pump and hold your index finger over the inlet fitting. The
pump should normally stall. If the pump, however, continues to run,
then the pump is contaminated and the analyzer needs to be returned to
Bacharach for repair.
2.5
High Humidity Gas Sampling (2820)
When using the 2820 to draw in gas samples from areas with high levels
of humidity (e.g., incubators with water jackets), install both particulate
filter P/N 54-0548 and desiccant filter P/N 07-1645 on the analyzer by
first connecting the particulate filter to the analyzer’s inlet. And then
connecting the desiccant filter to the particulate filter using a 2–3 inch
piece of rubber tubing (cut from the tubing supplied with the analyzer).
Use the remaining piece of tubing to connect to the incubator.
After completing a test, continue to run the pump while sampling fresh
air until the reading is below 0.1. This will purge out any residual CO2
before proceeding to the next test.
Instruction 19-9222
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CO2 Analyzer 2810/2815/2820
Replace the desiccant filter when its silica gel turns a pinkish color. Note
that the filter’s silica gel can be rejuvinated by either running pure N2
through the filter at a low flow rate, or by baking the filter in a 250°F
(120°C) oven until its blue color returns.
When storing the desiccant filter, install rubber caps P/N 19-0001 on
both ends of the filter. The caps will seal the filter when not in use and
extend its life.
2.6
Storing Readings
There are two reading-storage modes available:
• Snapshot
• Continuous Data Logging
Pressing the f1 button once stores (takes a snapshot of) the reading
shown on the display.
ppm CO2
340
Clock icon is displayed once for
a snapshot, and flashes during
continuous logging.
Pressing and holding down the f1 button for at least 2 seconds starts the
continuous data logging of the readings at a preset interval (factory set
at 30 seconds).
The analyzer can store up to 100 snapshot readings and 800 sets of
continuous-data-logged readings. Once the storage capacity has been
exceeded, the latest readings will overwrite the oldest stored data.
The stored data can be downloaded to a personal computer using the
analyzer’s IrDA link and the optional BACH-COM software. This software can also be used to alter the data-logging interval, and produce
tables and plots of time-based CO2 readings.
2.7
Battery Low Display
When the battery voltage falls below a pre-determined level, the display
will alternate between its normal gas display and
BattLow
340
In addition, the beeper will emit three rapid notes every 30 seconds. At this time
the analyzer should be given a full charge per Section 3.6 as soon as possible.
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Instruction 19-9222
CO2 Analyzer 2810/2815/2820
2.8
Battery Charge Display
The battery’s remaining charge is displayed by pressing the f2 button
once. A bar graph in the lower part of this screen shows an approximation of the battery’s remaining charge. As the charge reduces, the
bar graph decreases in size. Typical operating time from a full charge is
7 hours with the pump running, and 10 hours with the pump off.
Battery
Level
= represents full charge
2.9
= represents low charge
Backlight
To view the LCD in poor ambient lighting conditions, turn on the display’s backlight by pressing the f3 button once (with the analyzer on).
The backlight stays on for 5 seconds and then automatically turns off.
2.10 Audible Gas-Level Tone (2815/2820)
An audible tone, which will increase in pitch with increasing CO2 levels,
is activated by pressing and holding down the f3 button for 3 seconds.
The tone is turned off by again pressing and holding down the f3 button
for 3 seconds.
2.11 Fault Condition Warning
The analyzer is capable of alerting the operator of an internal fault
condition (i.e., a sensor failure or blockage in the infrared path). If a fault
occurs, the analyzer’s beeper will sound continuously, and the following
message is displayed until the analyzer is turned off.
FAULT
If the fault warning is displayed at any time, then the analyzer must be
returned to Bacharach for servicing.
Instruction 19-9222
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CO2 Analyzer 2810/2815/2820
2.12 Powering Analyzer from Charger
The analyzer can be continuously powered by its charger by connecting
the charger as follows:
1. Switch ON the analyzer without the charger attached.
Note: Connecting a charger to an analyzer that is switched
OFF causes the analyzer to enter its charging mode, which in
turn prevents the analyzer from being switched ON.
2. Plug the charger into the appropriate AC wall socket (or 12 VDC when
using the optional cigarette lighter adapter). Then plug the charger’s
output connector into the analyzer’s charging socket (Figure 1,
Item G).
The analyzer will now continuously run until it is switched OFF.
2.13 Troubleshooting for Slow or
Low Readings (2820)
It normally takes between 1 and 2 minutes to obtain a peak reading
when testing an incubator. A slow or low reading can be caused by either
a clogged desiccant filter or a contaminated CO2 sensor. Do the following
to test for slow or low readings:
1. Remove both filters and sample again.
2. If this cures the problem, first replace the desiccant filter
(P/N 07-1645) and sample again. Note that the particulate filter rarely
becomes clogged, but if the problem returns with both fiters installed,
replace the particulate filter (P/N 54-0548).
3. If the problem persists with the filters removed, reset the instrument
to the factory settings per Section 3.5. If the reset is OK, then calibrate
the instrument per Section 3.7.2.
4. If the factory reset fails, the CO2 sensor is contaminated and the instrument needs to be returned to Bacharach for repair and calibration.
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Instruction 19-9222
CO2 Analyzer 2810/2815/2820
2.14 Testing Incubators (2820)
When testing incubators with the Model 2820, it is important to keep
moisture from entering the instrument. Moisture can contaminate the IR
cell and affect the readings.
A desiccant filter is provided with the instrument to remove excess water
vapor (humidity), refer to Section 2.5. When testing water-jacketed
incubators, however, the potential exists to draw condensation—water
droplets that form inside the incubator’s internal sample line—through
the desiccant filter and into the instrument.
Bacharach offers a water trap as an accessory (P/N 19-3265) to help
prevent water from being drawn into the instrument. It is used in-line
between the incubator and desiccant filter as shown in Figure 2.
Important! Remove the water trap’s internal particulate filter
element before testing.
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Figure 2. Installation of Water Trap Accessory
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Instruction 19-9222
2
CO2 Analyzer 2810/2815/2820
3.0 MAINTENANCE
3.1
Cleaning
Keep the analyzer clean by wiping it with a soft cloth dampened with a
mild detergent solution.
3.2
Sunlight
The unit should not be left out in direct sunlight, or in other areas where
excessive heat exists, for long periods since component damage due to
overheating may result.
3.3
Servicing
There are no user-serviceable parts inside the analyzer. Unauthorized
disassembly of the unit will invalidate the warranty.
3.4
Software Version / Serial Number
With the analyzer switched OFF, and while holding down the f1 button,
switch ON the analyzer to display its software version and issue date.
Releasing the f1 button displays the analyzer’s ID number for 5 seconds.
Cd v1.24
20/5/98
3.5
→
ID No.
xxxxx
Factory Settings
Important! The analyzer should only be returned to its factory settings when advised by a Bacharach Service Representative.
With the analyzer switched OFF, and while holding down the f2 button,
switch ON the analyzer. The display will show
FACTORY
SETTINGS
Keep the f2 button depressed until the display shows
RESET OK
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Instruction 19-9222
CO2 Analyzer 2810/2815/2820
Release the f2 button and follow the instructions from your local service
representative.
WARNING: After resetting the analyzer to its factory settings,
it must be calibrated as described in Section 3.7 or erroneous
gas reading may result.
3.6
Battery Charging
When the ‘BattLow’ message is displayed (refer to Section 2.7), the analyzer must be recharged using the supplied battery charger.
Important! The battery has a long shelf life, but it is recommended that the battery be recharged once a month if
left unused. Batteries that have not been charged for several
months should be given at least two charge/discharge cycles
before using the analyzer.
As with all rechargeable batteries, there are guidelines that should be
observed: The battery should normally be charged at room temperature.
Charging at temperatures below 54 °F (12 °C) should be avoided since
this may cause a false indication of when the battery is charged, and
could also damage the battery.
Before beginning the charging process, first ensure that the analyzer is
switched OFF. Next, plug the supplied charger into the appropriate AC
wall socket (an optional 12 VDC charger with cigarette lighter adapter is
also available). Then plug the charger’s output connector into the analyzer’s charging socket (Figure 1, Item G).
The word “CHARGING” appears while the battery is being charged.
Charging time is approximately 2 hours.
Note: If the battery is deeply discharged, the display will
remain blank for a few minutes before the battery begins
charging.
Once the battery is fully recharged, the analyzer will emit a beeping tone
for 30 seconds and display the word “CHARGED”. At this time unplug
the charger and remove its output connector from the analyzer.
CHARGING
>>>>>>>>
Instruction 19-9222
→
CHARGED
9
CO2 Analyzer 2810/2815/2820
3.7 Calibration
Calibration of a 2810/2815/2820 CO2 Analyzer consists of first performing
either an Air Calibration on a 2810/2815 analyzer that zeros the instrument using fresh ambient air, or an N2 Calibration on a 2820 analyzer
that zeros the instrument using 100% N2.
Factory calibration provides the best accuracy over the analyzer’s entire
detection range; however, the user can perform the optional Gas Calibration procedure that will improve the analyzer’s accuracy at a preprogrammed calibration point of 2,500 ppm CO2 for the 2810/2815, and
5% CO2 for the 2820. Note that the pre-programmed calibration point can
be changed using BACH-COM software version 2.22 or higher.
It is recommended that an Air Calibration or N2 Calibration be performed at the beginning of each work day or each time the instrument
is switched OFF/ON. The analyzer should also be checked on a periodic
basis with a higher concentration of CO2 to ensure that it still meets its
accuracy specification.
Follow the procedure under Section 3.7.1 to calibrate a 2810/2815 Low
Range (LR) Analyzer, or the procedure under Section 3.7.2 to calibrate a
2820 High Range (HR) Analyzer.
3.7.1 2810/2815 Calibration Procedure
3.7.1.1 Air Calibration
Perform this procedure in an uncontaminated enviroment such as outside fresh air, an empty room, or corridor where the air is assumed to
contain 340 ppm CO2.
Important! DO NOT perform an air calibration after sampling high concentrations of CO2 gas. Also, be careful that
your breath does not affect this procedure.
1. Switch ON the analyzer, and then allow it to sample fresh air for
5 minutes. During this time, the internal pump of a 2815 Analyzer
should be turned OFF.
CO2 LR
Analyzer
10
→
ppm CO2
340
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
2. Press and hold down the f2 button until the ‘User Cal’ screen is displayed. Note that battery status is first displayed for approximately
2 seconds.
User Cal
Wait until the analyzer automatically switches to its ‘Air/Gas’ screen
before proceeding.
f1-> Air
f3-> Gas
3. Press the f1 button to zero the analyzer using fresh ambient air. If the
air calibration procedure was successful, the display will show
AirCal
OK
If the procedure was unsuccessful, the message
AirCal
Failed
will be displayed. If this happens, retry the Air Calibration procedure,
ensuring that the analyzer is only exposed to fresh air. If the procedure is still unsuccessful, then the analyzer must be returned to a
Bacharach Service Center for evaluation.
4. This completes the Air Calibration procedure. If desired the analyzer
can now be spanned to a known concentration of CO2 gas per Section
3.7.1.2.
Instruction 19-9222
11
CO2 Analyzer 2810/2815/2820
3.7.1.2 Gas Calibration
WARNING: This procedure assumes that you are using the
Bacharach Calibration Kit as listed in Section 4.1, Calibration
Accessories. When using a non Bacharach gas regulator,
however, you must also use an in-line flowmeter to ensure that
the gas flow to the analyzer is between 100 and 200 cc/minute.
Improper flow can cause erroneous gas readings!
Important! Always perform an Air Calibration first.
1. Press and hold down the f2 button until the ‘User Cal’ screen is displayed.
User Cal
Wait until the analyzer automatically switches to its ‘Air/Gas’ screen
before proceeding.
f1-> Air
f3-> Gas
2. Press the f3 button to display the Gas Calibration screen.
f1> 2500
340
The top line shows the preset calibration gas value that must be applied to the analyzer’s inlet. The bottom line shows the current CO2
reading.
Note: The analyzer is most accurate around the calibration
gas value. If the analyzer, however, is routinely used to monitor CO2 levels that are much higher or lower than the preset
value, then it is recommended that the analyzer be calibrated
on a concentration of gas that is close to the gas level being
monitored. This operation requires that the preset calibration
gas value be reset higher or lower using the optional BACHCOM software, version 2.22 or higher.
12
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
3. Using the Calibration Accessories listed in Section 4.1, attach a CO2
calibration gas cylinder to the inlet of the analyzer as shown in Figure 3. The applied CO2 concentration must equal the gas value displayed in the top line of the Gas Calibration screen.
Important! Do not attempt to calibrate the analyzer if the
pressure gauge closest to the tank reads below 5 psi.
4. Adjust the regulator attached to the gas cylinder for an outlet pressure
of 2 psi (equivalent to a flow rate of approximately 120 cc/minute).
Observe that the gas level displayed on the second line of the Gas
Calibration screen should slowly rise to the value displayed in the top
line.
5. Allow the calibration gas to flow until the second line of the Gas Calibration screen stabilizes, then press the f1 button.
If the gas calibration procedure was successful, the display will show
GasCal
OK
If the procedure was unsuccessful, the message
GasCal
Failed
will be displayed. If this happens, retry the Gas Calibration procedure,
ensuring that the analyzer is exposed to the correct concentration of
calibration gas. If the procedure is still unsuccessful, then the analyzer
must be returned to a Bacharach Service Center for evaluation.
6. This completes the Gas Calibration procedure. Shut off the regulator;
then remove and store the calibration accessories.
Instruction 19-9222
13
CO2 Analyzer 2810/2815/2820
3.7.2 2820 Calibration Procedure
3.7.2.1 N2 Calibration
The following procedure uses 100% N2 to zero the analyzer. (Fresh ambient air that is assumed to contain 340 ppm CO2 can be used if N2 is not
available.)
Important! DO NOT perform an N2 calibration after sampling high concentrations of CO2 gas. Also, be careful that
your breath does not affect this procedure.
1. Switch ON the analyzer. But before proceeding, allow the analyzer to
sample fresh air for 5 minutes with its internal pump turned OFF.
CO2 HR
Analyzer
→
% CO2
00.00
2. Press and hold down the f2 button until the ‘User Cal’ screen is displayed. Note that battery status is first displayed for approximately
2 seconds.
User Cal
Wait until the analyzer automatically switches to its ‘N2/Gas’ screen
before proceeding.
f1-> N2
f3-> Gas
3. Using the calibration accessories listed in Section 4.1, attach a 100%
N2 gas cylinder to the inlet of the analyzer as shown in Figure 3. Then
adjust the regulator attached to the gas cylinder for an outlet pressure
of 2 psi (equivalent to a flow rate of approximately 120 cc/minute). If
N2 is unavailable, turn ON the analyzer’s pump and allow it to draw
in fresh air for at least 30 seconds before proceeding.
Important! When using N2 gas, do not attempt to calibrate the
analyzer if the pressure gauge closest to the tank reads below
5 psi.
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Instruction 19-9222
CO2 Analyzer 2810/2815/2820
4. Press the f1 button to zero the analyzer using 100% N2 or fresh air. If
the N2 Zero procedure was successful, the display will show
N2 Cal
OK
If the procedure was unsuccessful, the message
N2 Cal
Failed
will be displayed. If this happens, retry the N2 Zero procedure, ensuring that the analyzer is only exposed to either 100% N2 or fresh
air. If the procedure is still unsuccessful, then the analyzer must be
returned to a Bacharach Service Center for evaluation.
5. This completes the N2 Calibration procedure. If desired the analyzer
can now be spanned to a known concentration of CO2 gas per Section
3.7.2.2.
3.7.2.2 Gas Calibration
WARNING: This procedure assumes that you are using the
Bacharach Calibration Kit as listed in Section 4.1, Calibration
Accessories. When using a non Bacharach gas regulator,
however, you must also use an in-line flowmeter to ensure that
the gas flow to the analyzer is between 100 and 200 cc/minute.
Improper flow can cause erroneous gas readings!
Important! Always zero the analyzer first using 100% N2 or
fresh ambient air.
1. If the pump is running, turn it OFF.
2. Press and hold down the f2 button until the ‘User Cal’ screen is displayed.
User Cal
Instruction 19-9222
15
CO2 Analyzer 2810/2815/2820
Wait until the analyzer automatically switches to its ‘N2/Gas’ screen
before proceeding.
f1-> N2
f3-> Gas
3. Press the f3 button to display the Gas Calibration screen.
f1->05.0
00.0
The top line shows the preset calibration gas value that must be applied to the analyzer’s inlet. The bottom line shows the current CO2
reading.
Note: The analyzer is most accurate around the calibration
gas value. If the analyzer, however, is routinely used to monitor CO2 levels that are much higher or lower than the preset
value, then it is recommended that the analyzer be calibrated
on a concentration of gas that is close to the gas level being
monitored. This operation requires that the preset calibration
gas value be reset higher or lower using the optional BACHCOM software, version 2.22 or higher.
4. Remove the 100% N2 cylinder (if used); then attach a CO2 calibration
gas cylinder to the inlet of the analyzer as shown in Figure 3. The applied CO2 concentration must equal the gas value displayed in the top
line of the Gas Calibration screen.
Important: Do not attempt to calibrate the analyzer if the
pressure gauge closest to the tank reads below 5 psi.
5. Adjust the regulator attached to the gas cylinder for an outlet pressure
of 2 psi (equivalent to a flow rate of approximately 120 cc/minute). Observe that the gas level displayed on the second line of the Gas Calibration screen should slowly rise to the value displayed in the top line.
16
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
6. Allow the calibration gas to flow until the second line of the Gas Calibration screen stabilizes, then press the f1 button.
If the gas calibration procedure was successful, the display will show
GasCal
OK
If the procedure was unsuccessful, the message
GasCal
Failed
will be displayed. If this happens, retry the Gas Calibration procedure,
ensuring that the analyzer is exposed to the correct concentration of
calibration gas. If the procedure is still unsuccessful, then the analyzer
must be returned to a Bacharach Service Center for evaluation.
7. This completes the Gas Calibration procedure. Turn off the regulator;
then remove and store the calibration accessories.
� � � �
�
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� � � � � � � � �
�
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� � ��� � ��� � � ��� � �� ����� � � �� � � ��� � �
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2
3
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� � � � � � � � �� ��� �� � ��� � � � � � � � � � � �� � ��� �� �
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Figure 3. Calibration Equipment
Instruction 19-9222
17
CO2 Analyzer 2810/2815/2820
4.0 PARTS & SERVICE
4.1
Replacement Parts and Accessories
Complete Kits
CO2 Analyzer 2810 – measures 0 to 10,000ppm CO2, includes
table top stand, particulate filter & wall charger ............................19-8023
CO2 Analyzer 2815 – meausres 0 to 10,000 ppm CO2, includes
internal pump, table top stand, particulate filter, wall charger,
& sampling tube.................................................................................19-8028
CO2 Analyzer 2820 – measures 0 to 60% CO2, includes internal
pump, wall charger, sampling tube, particulate filter &
desiccant filter....................................................................................19-8025
Replacement Parts
110/240 VAC USA & European Wall Charger (all)..........................19-3312
Table Top Stand (2810/2815).............................................................19-3307
Luer Fitting (2815/2820) .................................................................103-2563
Sampling Tube, 6 inches (2815/2820) ...............................................11-0118
Particulate Filter (2815/2820) ...........................................................54-0548
Desiccant Filter (2820) .....................................................................07-1645
Rubber Caps for Desiccant Filter (package of 6) (2820) .................19-0001
Accessories
12 VDC Charger w/ Cigarette Lighter Adapter ...............................19-3302
Carrying Case, Small (10 5/8"L x 8 1/2"W x 3 3/16"H) .........................19-3337
Carrying Case, Large (13 1/2"L x 10 13/16"W x 4"H) ..........................19-3311
IrDA Interface Kit & BACH-COM Software ....................................19-3301
Protective Boot ...................................................................................19-3304
Water Trap (2820)..............................................................................19-3265
Calibration Accessories
Calibration Kit(w/ regulator and tubing) .........................................19-8027
Air Cal Check Gas, 340 ppm CO2, 17 liter tank (2810/2815) ..........24-1125
Calibration Gas, 2,500 ppm CO2, 17 liter tank (2810/2815)............24-1130
Calibration Gas, 100% N2, 17 liter tank (2820)................................23-4003
Calibration Gas, 5.0% CO2, 17 liter tank (2820) ..............................24-1126
18
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
4.2
Bacharach Service Centers
United States
California
7281 Garden Grove Blvd.,
Suite H
Garden Grove, CA 92841
Phone: 714-895-0050
Fax: 714-895-7950
E-mail: calservice@bacharach-inc.com
Indiana
8618 Louisiana Place
Merrillville, IN 46410
Phone: 219-736-6178
Fax: 219-736-6269
E-mail: indservice@bacharach-inc.com
New Jersey
7300 Industrial Park
Rte. 130, Bldg. 22
Pennsauken, NJ 08110
Phone: 856-665-6176
Fax: 856-665-6661
E-mail: njservice@bacharach-inc.com
Pennsylvania
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: 724-334-5051
Fax: 724-334-5723
E-mail: help@bacharach-inc.com
Texas
5151 Mitchelldale, B-4
Houston, TX 77092
Phone: 713-683-8141
Fax: 713-683-9437
E-mail: txservice@bacharach-inc.com
Instruction 19-9222
Canada
Bacharach of Canada, Inc.
250 Shields Court Unit #3
Markham, Ontario L3R 9W7 Canada
Phone: 905-470-8985
Fax: 905-470-8963
E-mail: bachcan@idirect.com
México
Bacharach de México
Playa Regatas No. 473 Tercer Piso
Col. Militar Marte
Delegación Iztacalco, 08830
México D.F.
México
Phones: 011-5255-5634-7740
011-5255-5634-7741
FAX:
011-5255-5634-7738
E-mail: bacharach@prodigy.net.mx
Europe
European Headquarters
Bacharach Instruments
Sovereign House, Queensway
Leamington Spa
Warwickshire CV31 3JR
England
Phone: +44-1926-338111
Fax: +44-1926-338110
E-mail: sales@bacharach-europe.com
Sales / Service Center - Denmark
Bacharach Instruments Int'l
P.O. Box 44
39 Lindegade
DK 6070 Christiansfeld
Denmark
Phone: +45-74-563171
Fax: +45-74-563178
E-mail: mail@bacharach.dk
19
CO2 Analyzer 2810/2815/2820
Notes:
20
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
Notes:
Instruction 19-9222
21
CO2 Analyzer 2810/2815/2820
Notes:
22
Instruction 19-9222
CO2 Analyzer 2810/2815/2820
Notes:
Instruction 19-9222
23
World Headquarters
621 Hunt Valley Circle, New Kensington, PA 15068
Ph: 724-334-5000 • Fax: 724-334-5001 • Toll Free: 800-736-4666
Website: www.bacharach-inc.com • E-mail: help@bacharach-inc.com
Printed in U.S.A.