Co2meter CM-1650 User manual

CM-1650: Portable CO2
Welding Gas Analyzer
Operation Manual
V1.0.0
Copyright © CO2Meter, Inc. All Rights Reserved. V112022- BWS

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WELCOME
Thank you for selecting the CM-1650 The Portable CO2 Welding Gas Analyzer. CO2Meter is providing
advanced analysis of welding gas blends that containing 0-100% carbon dioxide. The CM-1650 will allow the
user to verify gas blends and meet standards set by the American Welding Society. This will be achieved by
utilizing four NDIR carbon dioxide sensors, all calibrated to maximize accuracy at different measurement
ranges.
IMPORTANT SAFEGUARDS
To reduce the risk of fire, electrical shock and/or injury, basic safety precautions should always be followed
when using electrical appliances, including the following:
• READ ALL INSTRUCTIONS BEFORE USING THIS METER.
• Use only the included power supply to operate this meter. Inappropriate voltage supply could cause
irreparable damage to this device.
• Do NOT use batteries other than the Li‐ion 18650 3.7V rechargeable batteries.
• Additional Li‐ion 18650 3.7V rechargeable batteries (3) (can be purchased, here.)
• Do not operate with an obstructed sample path –remove the luer caps prior to operation.
• Make sure that the tubes are securely attached to the meter before sampling a closed environment.
• Ensure the SD Card has the gold chips facing up and towards the user, for proper use.
• Do not expose this meter to water or any liquids –utilize the included filters and water traps.
• Do not operate this meter if the enclosure isopened.
• Do not operate the device if it is malfunctioning.
SAVE
THESE
INSTRUCTIONS!!!

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CONTENTS:
WELCOME ........................................................................................................................................................................................ 2
IMPORTANT SAFEGUARDS........................................................................................................................................................... 2
FEATURES........................................................................................................................................................................................ 4
PACKAGE CONTENTS..................................................................................................................................................................... 4
OPTIONAL ACCESSORIES .............................................................................................................................................................. 4
PRODUCT OVERVIEW.................................................................................................................................................................... 5
PROPER SETUP............................................................................................................................................................................... 5
QUICK START GUIDE...................................................................................................................................................................... 6
PRINCIPAL OF OPERATION .......................................................................................................................................................... 7
CO2 Blend Selection:..................................................................................................................................................................... 7
Display explained:......................................................................................................................................................................... 7
Zone 1:....................................................................................................................................................................................... 7
Zone 2:....................................................................................................................................................................................... 8
Zone 3:........................................................................................................................................................................................... 8
Getting the green “GO” ................................................................................................................................................................ 9
MENU.............................................................................................................................................................................................. 10
MENU NAVIGATION ..................................................................................................................................................................... 10
DATA STORAGE ............................................................................................................................................................................ 11
Before Logging............................................................................................................................................................................. 11
Recording Data............................................................................................................................................................................ 11
Managing Files............................................................................................................................................................................. 11
SD Card Self diagnosis.................................................................................................................................................................. 11
SPECIFICATIONS ........................................................................................................................................................................... 12
TROUBLESHOOTING GUIDE.......................................................................................................................................................... 13
Rechargeable Batteries Index ...................................................................................................................................................... 14
Safety and Product Care............................................................................................................................................................... 14
Product Maintenance ..................................................................................................................................................................15
Contact Us .......................................................................................................................................................................................15

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FEATURES
‐ Measures CO2 (0-100)
- Quality NDIR CO2 sensing technology
- Simple Target Gas Selection
- Large back-lit LCD display
- Compact, easy to use in the field
- Rechargeable batteries with extended lifespan (last 30+ hours)
‐Data Logging to any size micro-SD Card (16GB SD Card included)
PACKAGE CONTENTS
Please verify that your package contains the following items before using the meter:
• (1) CM‐1650 Portable Welding Gas Analyzer
• (3) Li‐ion 18650 3.7V batteries (Installed)
• (1) Water Trap
• (1) Hydrophobic Filters
• (2) Particulate Matter filters
• (2) Barbed fittings for filters
• (1) Tubing Set –6’
• (1) 16 GB SD Card
• (1) SD Card Adapter
• (1) Quick Start Guide
• (1) USB 1.5 cable
• (1) 1.0 LPM Flow Regulator
• (1) AW-15A Welding Adaptor
• (1) Carrying Case
OPTIONAL ACCESSORIES
CM-1650-REG-1.0: 1.0 LPM Flow Regulator (Replacement)
CM-0101: Fittings and filter kit (Replacement)
BAT-18650: 18650 3.7V Li-ion Rechargeable Battery (Replacement )
Note: Please contact our technical support staff for more details about these
accessories, [email protected]

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PRODUCT OVERVIEW
With the CM-1650 Portable CO2 Welding Gas Analyzer, CO2Meter is providing advanced analysis of active
welding gas blends that contain 0-100% carbon dioxide. This device verifies the most common gas mixtures
in the industry and will set the main targets for verification.
PROPER SETUP
Be sure to use the included tubing, filters and flow regulator. Failure to use the device without these included
accessories could result in malfunction or damage to your device.
1. CM-1650
2. Particulate Matter filter
3. Water Trap
4. Flow Regulator

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QUICK START GUIDE
Taking a measurement with your analyzer is simple and can be completed in as little as 3 minutes!!!! Follow these few
steps to begin analyzing your welding gas:
Step 1. Un-package your device and be sure that your CM-1650 is charged and ready to
use.
Step 2. Power on the CM-1650 and wait for device to complete warm-up.
Step 2. Use the the included tubing, filters, and flow regulator to connect gas supply.
***Note: failure to use included regulator could resulting in damage to your analyzer****
Step 3. Select CO2 welding gas blend concentration to be analyzed
Step 4. Apply gas to activate the device and begin measuring.

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PRINCIPAL OF OPERATION
CO2 Blend Selection:
User will use up and down keysto scroll
through the CO2 blend selections.
Display Explained:
Zone 1:
Shows CO2 reading and Active Status
(1) Battery Icon-Indicates battery life
(2) Time-Display time to match with data log
(3) SD card icon-Notifies user of intended gas to be measured
(4) Large CO2 reading-Provides a live CO2 reading
(5) Active and Inactive Status-Indicates if gas is flowing through the sampling chamber

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Zone 2:
Green “OK” to indicate gas is within spec Zone2
RED “STOP” to indicate gas is out of spec Zone2
Provides a graphic representation that notifies the user if the gas measurement meets specification. Red “STOP”
indicates the measurement is not within spec. Green “GO” indicates that the measurement is within spec. the user is
safe to proceed with the weld if the green indication is displayed.
Blend
Range
Below Range
In Range
Above Range
C2
1.8-2.2%
Measurement < 1.8%
1.8-2.2%
Measurement > 2.2%
C10
9-11%
Measurement < 9%
9-11%
Measurement > 11%
C15
13.5-16.5%
Measurement < 13.5%
13.5-16.5%
Measurement > 16.5%
C25
22.5-27.5%
Measurement < 22.5%
22.5-27.5%
Measurement > 27.5%
C50
45-55%
Measurement < 45%
45-55%
Measurement > 55%
Chart created based on the AWS standard: (ANSI/AWS A5.32/A5.32M-97) - When mixed gases are being analyzed,
the volumetric percentage of minor components shall be within ±10 percent relative to the nominal percentage of
the minor component of the classification.
Zone 3:
Displays CO2 blend user selection
Zone 3 displays the user selected blend that is being analyzed. The user is prompted to select this configuration upon
that up of the device.
Standard Blend Selection:
(C2, C10 C15 C25 C50)
Custom Blend Selection: Zone3:
(C5 C20 C30 C35 C40 C45 C50 C55 C60 C65 C70 C75 C80 C85 C90 C100)
*** Custom blend selection must be made through a secondary process housed in the menu***

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Getting the green “GO”
Wait for the gas reading to stabilize.
This could take 1-5 minutes. The regulator allows 1.0 L/m flow. When it’s Active. the LCD back light will keep turn on.
User will get a red "STOP" while the gas is not within spec，Connect Gas and allow reading to move towards
specification. 60 sec countdown will begin once the reading moves within specification of selected blend. Specification
±10%
….
Timer will continue to countdown until reading stabilized. After 60 sec the user will see green GO message.
CN
LOW
HIGH
C2
1.8
2.2
C5
9
11
C10
9
11
C15
13.5
16.5
C20
18
22
C25
22.5
27.5
C30
27
33
C35
31.5
38.5
CN
LOW
HIGH
C40
36
44
C45
40.5
49.5
C50
45
55
C55
50.5
59.5
C60
56
64
C65
61.5
68.5
C70
67
73
C75
72.5
77.5
CN
LOW
HIGH
C80
78
88
C85
83.5
86.5
C90
89
91
C95
94.5
95.5
C100
100
100

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MENU
1. Date: 01/01/2022 ~ 2099
2. Time: 10:42:28 AM →12/24 hour selectable
3. Data log interval: XX sec (2,5,10sec)
4. Backlight level: 01-32
5. Background color: □□□□
6. Backlight time: --- for on~(Range from 10-999)sec
7. Auto Power Off: 1-60 min
8. CO2 Blend Selection (Press Enter for setting)
9. Custom CO2 Bland (Press Enter for setting)
10. Sensor Calibration (▲+▼)(Press (▲+▼)to select then Press Enter)
11. 2-Point Calibration (▲+▼)(Press (▲+▼)to select then Press Enter)
***CALIBRATION SHOULD BE COMPLETED ANNUALLY BY QUALIFIED TECHNICIANS ONLY***
***PLEASE CONTACT CO2 METER FOR MORE INFORMATION***
MENU NAVIGATION
1.
Press Menu key until the menu display appears.
2.
Press the Up and down arrowsto navigate through the menu options.
3.
Press the Enter key to select an option and configure.

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DATA STORAGE
This device features an included 16GB micro-SDcard; however, any size micro-SDcard can be utilized.
Once the Portable CO2 Welding Gas Analyzer is turned on, you can gather data in real time. Data logs can be
downloaded from the device’s micro-SD Card to an excel/csv. file and analyzed for further observation. The full
color LCD display also features real‐time data graphing by rotating the device to the horizontal position.
Before Logging
1. Verify the 16 GB SD Card is installed in the card slotcorrectly.
(The gold tabs should point towards the front of the device/user ‐see, 1.3 image)
2. Verify the batteries are fully charged before deployment. Charge/replace if necessary.
Recording Data
1. Place the CM‐1650 Portable welding Gas Analyzer in its desired location.
2. Connect the included tubing and filters as required to the top ports. (see image on
page10).
3. To begin logging, simple flow gas into the device using the included flow regulator.
Once gas is flowing through the device, it wills switch from “Inactive” status to “Active”
status.
4. When the device is in “Active” status and gas is glowing through the device, a data log
will be created and saved.
Managing Files
CM‐1650 Log Files Reference
1. The CM‐1650 series stores "Log Files" on the removable SD card.
2. The excel/csv. columns are pre‐labeled: Time / Gas Concentration /
RH%/DP (C), Baro1 (ambient air)/ Baro2 (pressure inside the sensing
chamber)
3. At the completion of your tests, remove the SD Card from theCM‐1000.
4. Place the SD card into the included card adapter or simply place into your PC.
5. Open the Log files in Excel (.xlsx)
6. Success! You have downloaded/managed the data you recorded with your
SD Card Self diagnosis
(Blue=stand by、Green=writing、Black=without SD card、Red=bad SD card、Yellow=SDcard is full)
Figure 1.2 16GB SD Card,
Gold terminals facing upright

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SENSOR SLOTS EXPLAINED
The senor used to make the measurement is determined based on the user selected gas blend. For increased
accuracy across the range 0-100% CO2, four NDIR CO2 sensors are specifically calibrated to target specific blends.
This chart outlines howthe sensors are related to the blend selection.
SPECIFICATIONS
Measurement Range
CO2: 100%
Display Resolution
CO2: 0.01%
Alarm Volume
80db±5%@10cm
Operating Conditions
0~50°C(32~122°F), 0~95%RH, non-condensing
Storage Temp.
-20~60°C(-4~140°F)
RS485 CO2Meter Internal
RS485 Modbus BR19200
Power Supply
Rechargeable Battery: Li-ion 18650 3.7V
AC Adapter: 5V±5% >1A, 100~240 VAC, 50/60 Hz
Storage Capacity
depend on SD card capacity (max.16G SD card)
Weight
480g (1.05 lbs.) - without batteries
Dimensions
225.8x99.6x55 mm (8.9 x 3.9 x 2.2 in.)
EMC/RFI:Readings may be affected iftheunitisoperated within radio frequency
electromagnetic field strength of approximately 3 volts per meter, however the
performance of the instrument will not be permanently affected.

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TROUBLESHOOTING GUIDE
Symptom /
Issue
Possible Cause / Resolution
Device does not
power ON
Make sure the power supply is connected properly and that there is
power in the outlet the adapter is connected has the appropriate
voltage. If using batteries, make sure they are not depleted.
Slow
Response Check the air flow channels to make sure they are not
obstructed.
Reading Error
Ensure that the Inlet/Outlet Luer Cap Fittings
are removed to enable an accurate means of
sampling.
Red SD Card Icon
Appears
This indicates that the SD Card is either damaged, missing,
or full of data. Replace SD Card.
LCD Display Turns
Off During
Measurements
If the user experiences LCD display turning off during
calibration, measurements, or data logging – please
reference the “settings” section to adjust backlight / auto
power off from default settings.
LCD Screen
Troubleshooting
During Use
If the user experiences issues with the screen orientation, this
setting can be changed by referencing the “settings” section
and adjusting the “screen auto rotate” to “NO”.
….
……

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‘Battery OK’:
Measurements
are possible
‘Battery Low’:
The battery needs to be
recharged,measurementsare
still possible
‘Battery
Exhausted’:
Measurementsare
not possible
Battery installation:
This device is supplied with Li-ion 18650 3.7V rechargeable batteries (3x), which are pre-installed upon device shipment.
Battery charging:
During battery charging, the temperature of the device will rise by 5°C~10°C. At this time, the measurements of temperature
and humidity will be affected by temperature rise. This could cause an effect on the accuracy of temperature when charging.
Please use a fan to blow toward the Temperature & Humidity Sensor (B)
directly, in order to gain a compensated balance of temperature and humidity between that of the
temperature sensor and surrounding area. (5V/1A USB adapter charger).
Safety and Product Care
To ensure correct and safe device use, please read the User Manual before using the device.
Please handle the device lightly, do not subject the device to impact/shock.
1. Do not submerse the device in water or allow liquid to be sampled into the device.
This will cause electric shock, fire or malfunction which may result in damage.
2. Do not keep the device in a hot/humid environment. Keep the device away from heat source or water.
3. Please use a standard USB power supply (such as PC's USB port, universal AC adapter with USB port).
4. Improper power supply can cause serious damage to the device or result in injury or death to the user.
RECHARGEABLE BATTERIES INDEX

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1. The maximum capacity of the SD card is 16G. (This is five years’ worth of space)
2. During battery charging, the temperature of the device rises. The temperature and humidity sensors are affected. Currently,
measurements are only for reference. After batteries are fully charged and the device cools down, measurements are reliable.
3. Repair – Do not attempt to repair the device or modify the circuitry by yourself. Please contact CO2Meter if the device needs
servicing.
4. Caution – The CO sensor must be replaced every 3 years.
5. Cleaning – Disconnect the power before cleaning. Use a damp cloth, do not use a liquid cleaning agent, such as
benzene, thinner or aerosols.
6. Maintenance – Recommended that the user conducts a comprehensive test and calibration every year to ensure normal
operation of the device.
We are here to help!
For information or technical support, please contact us.
[e-mail]
(386) 256‐4910 (Technical Support)
(386) 872‐7665 (Sales)
www.CO2Meter.com
See CO2Meter, Inc. Terms & Conditions at, www.CO2Meter.com/pages/
terms‐conditions
CO2Meter, Inc.
105 Runway Drive
Ormond Beach, FL
32174 USA
877-678-4259
M-F 8:30am-5pm EDT
Product Maintenance
Contact Us