Co2meter SAN-0001 User manual

Last Revised March 23, 2018
Copyright © 2018 CO2Meter Inc., all rights reserved.
Pocket CO2 Monitor & Data Logger
SAN-0001

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Contents
INTRODUCTION........................................................................................................................... 3
FEATURES .................................................................................................................................... 3
DESCRIPTION............................................................................................................................... 4
LCD DISPLAY ................................................................................................................................ 4
OPERATION ................................................................................................................................. 5
Power Button .......................................................................................................................... 5
Daily Bump Test....................................................................................................................... 5
MENU OPTIONS .......................................................................................................................... 6
1. Set Alarm Threshold............................................................................................................ 7
2. Set Temperature Units ........................................................................................................ 7
3. Calibration ........................................................................................................................... 7
4. Altitude Correction.............................................................................................................. 8
5. Data Logging........................................................................................................................ 8
DATA LOGGING software............................................................................................................. 9
Features................................................................................................................................... 9
Minimum System Requirements........................................................................................... 10
Quick Start Guide .................................................................................................................. 10
Installing the Software .......................................................................................................... 11
Connecting the Monitor........................................................................................................ 11
Main Screen Overview .......................................................................................................... 11
Meter Select.......................................................................................................................... 12
Downloading Data................................................................................................................. 12
Viewing Data as a Graph ....................................................................................................... 13
Data Archive .......................................................................................................................... 13
MAINTENANCE.......................................................................................................................... 13
Calibration............................................................................................................................. 13
Cleaning and Storage ............................................................................................................ 14
Troubleshooting .................................................................................................................... 15
SPECIFICATIONS ........................................................................................................................ 16
WARRANTY................................................................................................................................ 17
CONTACT US.............................................................................................................................. 17
APPENDIX A: CO2 LEVELS AND GUIDELINES............................................................................. 18
APPENDIX B: ALTITUDE CORRECTION ....................................................................................... 19
APPENDIX C: LOG FILE FORMAT................................................................................................ 20

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INTRODUCTION
Thank you for purchasing the SAN-0001 Pocket CO2 Monitor and Data Logger. This personal,
battery operated carbon dioxide (CO2) monitor is designed to monitor CO2 levels indoors or in
confined spaces. Normal indoor air quality levels are shown by Green (good), Yellow (normal) and
Red (warning) LEDs. If dangerously high CO2 levels are detected, the monitor will alert the user
to immediately seek fresh air with a combination of visual, audible and vibrating alarms. This
makes the monitor useful for both measuring IAQ as well as a personal CO2 level protection
device.
The SAN-0001 Pocket CO2 Monitor and Data Logger uses non-dispersive infrared (NDIR) CO2
sensing technology to provide long life, accuracy and stability in daily use. In addition to
measuring the CO2 concentration, the monitor displays temperature and relative humidity.
The SAN-0001 Pocket CO2 Monitor and Data Logger is shipped fully tested and calibrated and,
with proper use, will provide years of reliable service.
FEATURES
•Personal protection from high CO2 levels in enclosed areas
•Wearable design with built-in belt clip
•Stable, long-life NDIR sensor for CO2 detection
•Up to 12 hours of continuous monitoring on full charge
•Visual, audible and vibrating alarm levels (user-adjustable) for CO2 safety
•Green/Yellow/Red LEDs quickly show current indoor air quality
•CO2, temperature and relative humidity data logging
•Up to 65,520 time-stamped records in internal memory
•Data can be exported via USB using software (included)

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DESCRIPTION
1. Green LED - good
2. Yellow LED - normal
3. Red LED - warning
4. LCD display
5. Power button
6. Menu button
7. Set & Home button
8. Next button
9. High CO2 alarm LED
10. USB charging port
10, 11. Gas entry ports
LCD DISPLAY
1. CO2 concentration in ppm or % (> 9,999 ppm)
2. Air Temperature
3. % Relative Humidity
4. Battery Charge Level Indicator
Green/Yellow/Red LEDs
CO2 level indicator for indoor Air Quality (IAQ):
•Green LED - CO2 is below 800 ppm
•Yellow LED - CO2 between 800-1,200 ppm
•Red LED - CO2 level is above 1,200 ppm

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OPERATION
For daily operation, you should only need to perform 3 steps: power the monitor on, verify that
the battery is charged, and perform a bump test.
Power Button
1. Press the power button to turn the monitor on.
2. When the monitor is on, press the power button for 3 seconds to turn it off.
When the monitor is initially turned on, it will perform a 5 second countdown, then display the
current CO2, temperature, and humidity levels. The monitor starts taking measurements when
powered on, and will update the display every 3 seconds until it is powered off.
Check the battery level indicator on the LCD. If you do not have at least half a battery in the display,
the monitor may not have enough power to run for a full day.
Note: To conserve power, the LCD backlight turns off automatically after 5 seconds of inactivity.
Press any button to turn the display on again.
Daily Bump Test
“Bump Test” is an industry term for verifying that the monitor will sound the alarm when it senses
high levels of CO2. While you are encouraged to perform a full bump test daily, at a minimum you
should perform a quick bump test daily before entering any enclosed areas.
Full Bump Test
1. Turn the device on and wait for it to complete the 5 second warm up cycle.
2. Use 5% CO2 calibration or test gas with the balance nitrogen. Gas can be purchased
online, or by contacting CO2Meter at [phone].
3. Note: 5% CO2 gas can be dangerous. Do not bump test in an enclosed area!
4. Place the tubing from the calibration gas directly on the back left hand side hole near
the clip, this hole is directly above the sensor. Turn on the gas.
5. The alarm will sound depending on the alarm level you set. By
default, the alarm is factory set at 5,000ppm.
6. Remove the tubing and turn off the gas. As the CO2 gas inside
the case is displaced, the CO2 level will return to normal.
7. If the monitor does not pass the bump test, do not use it.
Contact CO2Meter support at [phone] or e-mail us at
[e-mail].

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Quick Bump Test
The quick bump test will only work if the alarm is set to the factory default of 5,000ppm.
1. Turn the device on and wait for it to complete the 5 second warm up
cycle.
2. Place the top end of the monitor close to your mouth and
breathe into the holes repeatedly.
3. The CO2 in your breath will cause the CO2 in the case to
increase. Continue to blow until the alarm sounds. You can verify
this on the screen.
4. Stop blowing. As your breath inside the case is displaced, the
CO2 level will return to normal.
5. If the monitor does not pass the bump test, do not use it. First,
perform a full bump test. If the full bump test fails, contact
CO2Meter support at [phone] or e-mail us at [e-mail]
MENU OPTIONS
Press the Menu button to enter the menu mode. There are 5 menu pages: Alarm,
Temperature units, Calibration, Altitude and Data Logging. Press the Set/Home button to
return to normal display.
Note: If the monitor is on and the screen is black, press any button to access the menu options.
1. Settings
The device is equipped with a 30 sample rate default setting, which has the function to set record
periods as shown below. Pre-set and default record periods are displayed, however to change
default alarms see as follows.
1. Press Menu once to select the record period.
2. Press Next to change the default setting.
3. Press Set to save and return to normal display.

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2. Set Alarm Threshold
If the measured CO2 value exceeds the selected alarm threshold, an LED will flash, an audible
alarm will sound, and the monitor will vibrate. 3 alarm thresholds can be selected: a 5,000ppm
CO2 alarm, a 5,000ppm TWA CO2 alarm and a 30,000ppm (3%) STEL CO2 alarm, See Appendix A
to determine which alarm is best for your application.
4. Press Menu once to select the alarm function.
5. Press Next to change the alarm threshold.
6. Press Set to save and return to normal display.
3. Set Temperature Units
Select temperature scale °Centigrade or °Fahrenheit.
1. Press Menu 2 times to select temperature units.
2. Press Next to switch between °C or °F.
3. Press Set to save and return to normal display.
4. Calibration
The monitor should be calibrated at least annually and can be calibrated either atmospheric
(outdoor 400 PPM CO2) or Zero with 100% Nitrogen (2) 0% CO2.
Both calibrations require the unit to be powered on.
Zero calibration procedure – Place the tubing from the calibration gas directly on the back-left
hand side hole near the clip. This hole is directly above the sensor. Run the Nitrogen until the
ppm level on the LCD displays approximately 0 ppm. Once stabilized, do steps 1-4 (See Below).
Ambient calibration procedure – Expose the unit to outdoor air until it’s stabilized (3-5 minutes).
Then do steps 1-4 (See below).

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See more information on calibration in the Maintenance section of
this manual.
Note: the screen may show a warning for humidity error. This is
normal during the calibration process.
1. Press Menu 3 times to select calibration.
2. Press Next to select Ambient or N2.
3. Press Set to begin calibration. Calibration takes 5-10 seconds.
4. “Calibration succeeded” will appear once calibration is complete.
Turn off the gas and let the monitor stabilize. It will return to the normal indoor CO2 level. Two
different SAN-0001 monitors may show different CO2 levels after calibration. If they are within
40ppm ±3% of the actual CO2 level, they are within the sensor’s specifications.
To quickly verify the calibration, you can take the monitor outdoors. If the Altitude is set
properly, the CO2 level should drop to approximately 400ppm depending on your location.
5. Altitude Correction
The CO2 level displayed is affected by the altitude. This monitor is shipped with the altitude set
at sea level (zero feet). If it is used at a higher altitude, you should first correct for altitude to
insure maximum accuracy. Once the altitude correction is set, it will be saved in memory. See
Appendix B for more information.
1. Press Menu 4 times to select Altitude Correction.
2. Press Next to raise the altitude in increments of 500 feet (150 meters) above sea level
until the closest altitude to yours is reached. When altitude reaches 20,000 feet, it will
return again to zero feet.
3. Press to save the current altitude setting and return to normal display.
6. Data Logging
The date, time, CO2, temperature and relative humidity are continuously recorded every 30
seconds while the monitor is powered on. A total of 65,520 records (approximately 22 days) can

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be stored. If the memory is not reset, it will “roll over” and new data will overwrite the memory
beginning at the oldest record.
1. Press Menu 5 times to select Data Logging.
2. Press Next to select Export, Reset (clear all) Memory or Exit without changes.
3. Press Set to begin exporting data, to reset the memory, or to exit to the normal
display.
GasDataLogging Software
The GasDataLogging software is included on the USB drive shipped with your monitor. You can
install the software from the USB drive, or from the website at:
http://www.co2meter.com/pages/downloads
Note: before exporting data to a PC, you must install the software and drivers first, then connect
the monitor to your PC using a Micro USB to Standard USB cable (included).
DATA LOGGIN G SOFTWARE
Included with your monitor is our GasDataLogging
Software. This Windows PC program allows you to view
the stored data offline with a user-friendly graphical
interface. It can also be used to manage logs stored in the
monitor’s internal memory as well as export data to a
text file for use in spreadsheets.
While GasDataLogging is included on the USB drive with
the manual, from time to time we may update the
software to include additional features. Be sure to visit the CO2Mete r.co m download page
regularly to get the latest GasDataLogging software updates at no charge.
Features
•Manage Logs – Download and view data logged in the monitor’s internal memory
•View Data – See a graph of the log file data on screen
•Export Data – Save logs as an ASCII text file that can be imported into a spreadsheet
•Reset Memory – Clear the monitor’s internal memory from the menu

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Minimum System Requirements
Your computer must meet or exceed the following minimum requirements:
•1GHz processor with 1GB RAM, 1GB free disk space (2GB free disk space for 64-bit
systems).
•Windows XP*/7/8/10
•On Intel-based Mac computers, GasDataLogging software can run using a Windows
7/8/10 virtual machine software such as VMware Fusion® or similar.
Quick Start Guide
1) Install GasDataLogging from thumb drive or
from the website at:
http://www.co2meter.com/pages/downloads
2) You must install the software before
connecting the monitor. After you have
launched the GasDataLogging software, connect
the monitor to the computer with the included
USB cable.
3) The GasDataLogging software will
automatically list the available monitor(s).
IMPORTANT! Always install software before connecting the monitor to your PC
The software consists of an installable .exe file and a .dll file. Both files must be installed
correctly on your PC before you plug in the USB cable. Otherwise, Windows will install an
“unknown device” driver and the monitor will not be recognized. To fix this problem, click the
link below, or go to CO2Meter.com, select the App Notes tab, and download the following
application note. It applies to all our USB-connected device software.
http://www.co2meters.com/Documentation/AppNotes/AN153-GasLab-Driver-Installation.pdf (pdf).

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4) Clicking on the Meter Select section to select
the meter you want to connect.
5) Click the Connect button.
6) Click the Download Data button to download
and view data logs stored in the meter’s internal
memory. A progress bar indicates the download
process.
7) A message will pop up when the download is
complete.
8) Click the Save Data button in the Data
Archive section to save the current log to your
computer when download complete.
Installing the Software
Double click or select Run from the popup menu to launch the GasDataLogging executable
program as shown in Figure 1.
Figure 1：GasDataLogging Software
IMPORTANT: THE FTD2XX.DLL FILE IS REQUIRED TO CONNECT THE MONITOR VIA USB. IT MUST
BE IN THE SAME FOLDER AS THE GASDATALOGGING EXECUTABLE PROGRAM.
Connecting the Monitor
Once the software is successfully installed, you can connect the monitor using the provided USB
data cable. Your software is now ready to use.
Main Screen Overview
The GasDataLogging interface has various sections and buttons that you should familiarize
yourself with before using the software. A brief description of each section is shown below.

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Figure 2：GasDataLogging Main Screen
Meter Select
The Meter Select section is located on the top left area of the GasDataLogging main screen, as
shown in Figure 2. Each meter’s COM port is automatically assigned when it is connected to your
PC through USB cable. Click on the COM number to select the monitor you want to connect. Then
click the Connect Meter button to communicate with your CO2 monitor.
Downloading Data
Once your monitor is connected to your computer, the Data Section allows you to download all
the current logs stored in the monitor’s internal memory. When you click the Download Data
button, a progress bar indicates the download process (See figure 3). Once download is complete,
you will see all data including CO2 level, temperature and relative humidity in the Raw Data
Window and the Graph Sections.
Figure 3: Download Progress Bar
The data read by your computer can be displayed both graphically in the Graph Sections and in
raw format listed in the Raw Data Window. The Raw Data Window allows the user to see the
actual data that was stored on your monitor.

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Click the Clear Data button to clear the Raw Data Window and the Graph.
NOTE: clearing the data in the software does not delete the raw data stored inside the monitor.
To clear the monitor’s data, you must select “Reset memory” from the Data Logging option in
the monitor’s setup menu.
Viewing Data as a Graph
The Graph Sections allows you to see the values after the computer has download the data from
the monitor. Data will automatically be graphed showing the CO2 levels in ppm or %, Temperature
in Fahrenheit or Celsius, and Relative Humidity in %. This data is shown in the Gas Concentration
Graph Section, Temperature Graph Section and Relative Humidity Graph Section respectively. You
can click on the Temperature Unit Switch to change between Fahrenheit and Celsius.
The Concentration Zoom In and Zoom Out button allows you to view the CO2 concentration in
four scales: 400 ppm, 1000 ppm, 2000 ppm, or 1%. The Temperature and Humidity Zoom In and
Zoom Out buttons let you switch the temperature and humidity graph scales as well.
The Time scale of all Graph Section is always 1 hour apart. The Time Move Forward and Backward
buttons allow moving the time forward or backward if the log time is longer than 6 hours.
Data Archive
This section of the screen includes two buttons: Save Data button and Open File button.
After downloading the data from the monitor, you can click the Save Data button to save the
current log files to your computer.
The Open File button allows you to select and display previously saved log files from your
computer.
To exit the software, click the EXIT button.
MAINTENANCE
Calibration
The SAN-0001 comes pre-calibrated from the factory. However, the CO2 sensor should be
calibrated at least once a year, or as described in your company’s safety procedures. You can
perform the calibration yourself, or you can return it to CO2Meter for factory calibration at a
nominal fee.
CO2 can be zero and/or atmospherically calibrated. Zero calibration requires 100% nitrogen (0%

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CO2) calibration gas, a flow regulator and flexible tubing. These can easily be obtained online:
https://www.co2meter.com/collections/accessories/products/demand-flow-regulator
The Atmospheric calibration will not require additional materials but must be performed in
outdoor (400 ppm fresh air) during the entire procedure.
The temperature and humidity sensors do not require calibration and should remain accurate for
the life of your unit.
Cleaning and Storage
The front cover and case can be cleaned with a mild solution of detergent and water. Apply
sparingly with a soft cloth and allow to dry completely before using. Do not use aromatic
hydrocarbons or chlorinated solvents for cleaning.

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Troubleshooting
Cannot power on
Press the Power Button for more than 0.5 seconds.
Check that the Li-ion battery is charged.
If monitor is charged but will not turn on, contact support.
Monitor is not
recognized by
computer or
software
Verify that software and drivers are installed correctly before attaching
monitor to PC.
Verify the software and drivers were installed before the monitor was
plugged into the PC with the USB cable.
Verify that the ftd2xx.dll file is in the same folder as the GasDataLogging
executable program.
Try using a different USB cable.
Windows reports
“unknown device”
error
Go to CO2Meter.com, select the App Notes tab, and follow the
instructions for
http://www.co2meters.com/Documentation/AppNotes/AN153-GasLab-Driver-
Installation.pdf (pdf).
Slow response
The log file stored in the monitor is very large. The monitor needs time
to transfer data to your computer.
Readings do not
change
Confirm the monitor is correctly connected to the computer. Make sure
the computer recognizes your monitor and connects with your monitor
successfully.
Monitor’s data logs
overwritten
Monitor memory will fill and be reused after approximately 22 days of
continuous use. Download data logs more frequently.

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SPECIFICATIONS
Device Specifications
Operating Environment
0°C~50°C (32°F~122°F), <95% RH non-condensing
Storage
-10°C~60°C (14°F~140°F), <99% RH non-condensing
Power Supply
Li-ion battery (4.2V, 1000mAh), Micro USB cable w. Wall charger
Dimensions
100x60x17mm (3.9x2.4x0.7")
Weight
85 grams (2.73 oz.)
CO2 Sensor Specifications
CO2 Sensor
Single-beam NDIR diffusion sampling
Measurement Range
0~50,000ppm (5% Vol)
Display Resolution
1ppm / 0.01%
Accuracy
±40ppm or ±3% of reading
Repeatability
±20ppm @ 400ppm
Temperature
Dependence
Typ. ±0.3% of reading per °C or ±4ppm per °C, whichever is greater,
referenced to 25 °C
Pressure Dependence
0.13% of reading per mmHg
Response Time
< 60 seconds
Warm-up Time
< 5 seconds at 22°C
IAQ LED Display
Green: <800ppm • Yellow: 800~1200ppm • Red: >1200ppm
Measurement interval
2 seconds
Temperature Sensor Specifications
Temperature Range
-10.0~60.0°C (14~140°F) display
Display Resolution
0.1°C (0.1°F)
Display Options
°C/°F switchable
Accuracy
±0.5°C (±0.9°F)
Response Time
5~30 seconds (device must equilibrate with environment)
Relative Humidity Sensor Specifications
Measurement Range
0.0~99.9%RH
Display Resolution
1%RH
Accuracy
±4.5%RH
Response Time
<8 seconds for 63% of step change
Out of range of operating conditions will impact the accuracy of the CO2 measurement. A warning
will display when humidity or temperature is above the rated thresholds (>95% RH condensing, >
122°F or < 32°F).

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WARRANTY
The monitor comes with a one (1) year warranty starting from the date the monitor was shipped
to the buyer.
For more information visit our website: www.CO2Meter.com/pages/faq
CONTACT US
[e-mail]
[phone] Technical Support
CO2Meter, Inc.
131 Business Center Drive
Ormond Beach, FL 32174 USA

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APPENDIX A: CO2 LEVELS AND GUIDELINES
1. CO2 Alarm Guidelines
The Occupational Safety & Health Administration (OSHA) requires by law that workers must be
protected from potentially dangerous high levels of CO2. There are 3 CO2 safety limits that must
all be followed:
•5,000 ppm CO2. This is the OSHA exposure limit for CO2 averaged over a 40 hour week.
•5,000 ppm CO2 TWA (Time-weighted Average). A workplace is considered unsafe if workers
are subjected to an average of 5,000 ppm CO2 or above for an 8-hour workday.
•3% CO2 STEL (Short Term Exposure Limit). At this CO2 level, an alarm must sound immediately,
and workers/occupants must leave the area.
Visit www.osha.gov for more details and to determine which alarm settings are best for your
application.
2. Indoor Air Quality
The Green/Yellow/Red LEDs are provided as a
quick check of indoor air quality (IAQ) in schools,
offices and similar buildings.
While there are several recommended standards,
the most commonly used is the American Society
of Heating, Refrigeration, and Air-Conditioning
Engineers (ASHRAE) standard, which states that
maximum indoor CO2 levels should be no more
than 700 ppm above outdoor CO2 levels. Since most outdoor CO2 is 400 ppm, this means that
1100 ppm is considered the maximum CO2 level for IAQ.
The National Institute for Occupational Safety and Health (NIOSH) considers indoor air
concentrations of carbon dioxide that exceed 1,000 ppm are a marker suggesting inadequate
ventilation.
In general, when measuring CO2 indoors, a green or yellow LED denotes acceptable IAQ. The red
LED suggests poor IAQ that should be corrected for the building occupant’s health and comfort.

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APPENDIX B: ALTITUDE CORRECTION
CO2 sensor modules are calibrated at sea level
and are not designed to automatically
compensate for changes to CO2 at higher
altitudes.
The CO2 level will be approximately 3% lower for
every increase of 1,000 feet (300m) in altitude.
For example, at 5,000 feet a meter reading 400
ppm calibrated at sea level would read
approximately 340 ppm.
Rather than making this calculation each time you use the monitor, you can look up your
location’s altitude online and enter the closest value into the monitor’s menu settings. Then the
calculation will be made automatically before the CO2 level on the LCD is displayed.
Here is a list of the 8 largest cities in the US, and the elevation measured at their airport.
City
Airport where
measured
Elevation
(nearest 50 ft.)
Set monitor
elevation to
Los Angeles, CA
LAX
150 ft.
0 ft.
Chicago, IL
MDW
600 ft.
500 ft.
Houston, TX
IAH
100 ft.
0 ft.
Philadelphia, PA
PHL
0 ft.
0 ft.
Phoenix, AZ
PHX
1150 ft.
1000 ft.
San Antonio, TX
SAT
800 ft.
1000 ft.
San Diego, CA
SAN
0 ft.
0 ft.
Dallas, TX
DFW
600 ft.
500 ft.
List of major cities worldwide by elevation:
https://en.wikipedia.org/wiki/List_of_cities_by_elevation

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APPENDIX C: LOG FILE FORMAT
The following technical details allow you to manually read the raw data from the monitor using
a serial terminal program or your own software.
Serial Interface Specifications:
Baud rate=57,600
8bit, one stop bit, no parity bit
For example:
SetBaudRate(FT_BAUD_57600); // Set baud rate to 57600
SetDataCharacteristics(FT_BITS_8, FT_STOP_BITS_1, FT_PARITY_NONE);
Commands to download log from monitor:
The server must send “SAN-0001” or “san-0001” ASCII code through the USB port to start the
download. For example:
0X53 0X41 0X4E 0X2D 0X30 0X30 0X30
OR
0X730X610X6E 0X2D 0X30 0X30 0X30
Data Stream
The data from SAN-0001 will be sent back in ASCII code as shown: