CO2METER CM501 Handheld Multi Gas Detector Instruction Manual

CO2METER CM501 Handheld Multi-Gas Detector

Product Specifications

• Models: CM501, CM503, CM504, CM505, CM506, CM507, CM510
• Measurement Items: CO2, CO, PM2.5, PM10, RH, DP, AMB, Barometer
• Optional Measurement Items: O2, NH3
• Battery Capacity: Li-ion 18650 3.7V rechargeable batteries
• Features: Dual-beam NDIR technology for CO2 measurement, RS485 interface for remote monitoring, SD card data logging, LCD with backlight

Product Usage Instructions

Power On

To power on the device, switch the Power Key (A) on.

Measurement

• After powering on, the device starts measuring and updating data every second. Press the M1 key (F) to switch to the Zone 1 sensor display (CO2, CO, O2, AMB).
• Press the M2 key (H) to switch to the Zone 2 sensor display (CO2, CO, O2, NH3, RH, DP, AMB, PM2.5, PM10).

Backlight

The backlight appears during startup and operation. After 30 seconds of device inactivity, the backlight turns off automatically to save battery life.

FAQ:

Q: What industries can the Handheld Multi Gas Detector be used in?

• A: The detector can be used in paint-related industries, wineries, the food industry, laboratory settings, the construction industry, etc.

Q: What type of batteries does the device use?

• A: The device is supplied with Li-ion 18650 3.7V rechargeable batteries for long-term use.

Q: How can I connect multiple CM500 units for monitoring?

• A: Through the RS485 interface connection, multiple CM500 units can be connected to a back-end computer system for security monitoring applications.

Product Overview

• Thank you for selecting the CM-500 Handheld multi-gas detector. The CM-500 is designed to simultaneously measure multiple gas concentrations in the ambient environment.
• With long-term data storage, the user can assess environmental friendliness. When CM-500 measures the gas concentration reaching the alarm setting or higher, the data display and alarm functions are activated.
• CM-500 is equipped with an RS485 interface for connecting to a computer for remote monitoring to reduce the risk of exposure to high concentrations of harmful gases and avoid harm to human health.
• The Handheld Gas Detector can be used in a wide range of industries, which include paint-related industries, wineries, related industries of CO2, food industry, laboratory, construction industry, etc.

Features

• Dual-beam NDIR (Non-dispersive infrared) technology is used to measure CO2 concentration and improve long-term stability.

Measurement items:

• Basic: CO2, CO, PM2.5, PM10, RH, DP, AMB, Barometer
• Optional: O2, NH3
• Large LCD for easy reading of gas concentration temperature and humidity.
• Audible alarm
• Data logging with SD card
• Through the RS485 interface connection, multiple CM500 units can be connected to the back-end computer system as a security monitoring application.
• Built-in LCD backlight for easy reading in the dark.
• This device is supplied with Li-ion 18650 3.7V rechargeable batteries and can be used for a long time.
• A. Power Key
• B. Humidity Sensor
• C. Temperature Sensor
• D. LCD
• E. Charge Lamp
• F. M1 (Zone 1 Mode Key)
• G. UP\TWA\STEL\Max\Min H. M2 (Zone 2 Mode Key)
• I. Enter
• J. DOWN\ALTI
• K. Log (Data Logger)
• L. USB Socket
• M. SD Card Slot
• N. RS485 Jack
• O. Battery Cover
• P. Stand
• Q. Screw Position
• R. Tripod Screw

Key description

LCD symbol description:

Operation Instructions

Power on:

Switch the Power Key (A ) on.

Measurement

°C/°F switch:

• When the temperature is displayed on the screen, press the “▲” key (G ) to switch °C/°F.

Backlight:

• The backlight appears on the screen during startup and operation. After the device is idle for 30 seconds, the backlight is automatically turned off to extend battery life.

Display all sensor readings

• Press the “M2” key (○H ) for more than 3 seconds and the screen displays . Zone 2 displays readings of all sensors sequentially in time intervals. If you need to increase the display interval time, long press the “M2” key (○H ). The interval time will automatically increase (1+0.5+0.5….. max. 10 seconds) , and release the “M2” key (○H ), the readings will be displayed according to the last set interval. If press the “M2” key (○H ) again for more than 3 seconds, the function can be canceled.

Real-time setting:

• Long press the “M1” key (○F ) to proceed with the date and time setting. The default format is 24-hour. Press the “▲(○G )/▼(○J )” key to edit the parameters, and press the “Enter” key (○I ) to proceed to the next setting.
• The setting sequence is year 7 months 7 days 7 hours 7 minutes. After finishing the real-time setting, press the “M1” key (○F ) to continue the alarm setting.

Alarm settings:

• The setting order of the sensors is CO2 CO O2 HN3 PM2.5. Press the “Enter” key (○I ) to switch the high/low gas concentration alarm setting. Press the ▲(○G )/▼(○J )” key to edit the parameters, and then press the “M1” key (○F ) to proceed to the next sensor alarm value settings. After settings, press and hold the “M1” key (○F ) to return to the main screen.

Data logging:

Press the “Log” key (○K ) for 3 seconds and the screen displays to start the data logging function, long press the “Log” key (○K ), this function can be canceled.
When flashes, it means that the SD card is broken or full; when remains stationary, it indicates normal operation.

Data logging interval time setting:

• The default interval time is 00:02 (2 seconds). Press the “Log” key (○K ) for more than 3 seconds and then the interval time will automatically increase.
• The interval time, loop display ranges from 00:02 seconds to 60:00 minutes and then back to 00:02  seconds.
• The interval time ≦5 minutes, the buzzer on/off switch is controlled by the “Enter” key (○I ); the interval time is ≧5 minutes, and the buzzer is off.

Atmospheric pressure display:

• Press the”▼” key (○J ), and then press the”▲” key (○G ) to select Altitude (M) 7 Altitude (ft) 7 Barometer (mmHg). The display returns to the main screen after 10 seconds.

Atmospheric pressure compensation:

• Press and hold the “▼” key (○J ) to turn the compensation function on/off. The gas compensation is only for CO2 and O2.

Buzzer on/off:

• Press the “Enter” key (○I ) to turn the buzzer on/off. During operation, if AL L or AL H buzzer sounds, stops operating. At this time, press the “Enter” key (○I ) to turn off the buzzer and continue .
• In addition, the buzzer will be automatically turned off when the data logging interval time is ≧5 minutes.

Buzzer AL L/AL H:

• When AL L is on, the buzzer sounds “Ta Ta Ta”; when AL H is on, the buzzer sounds “Bi Bi Bi”.

RS485 communications:

• Please use the 4 Pole 3.5mm headphone plug. The headphone plug contacts are defined as below:
• For long-distance communication, it is necessary to use a dedicated isolated line to ensure communication quality.

The wiring method is as below:

Power off:

• Switch the Power Key (○A ) off.
• Note: When the device is charged with USB, it cannot be turned off.

Calibration:

1. Single-point calibration
   • At the same time, long press the “▲(○G )“ and “▼(○J )“keys, CAL is displayed on the screen. Press the “M1” key (○F ) to select the sensor that needs to be calibrated. Press the “▲(○G )/▼(○J )” key to edit the parameters, and then press the “Enter” key (○I ) to proceed to the next setting. Zone1 displays the unadjusted raw value; Zone2 displays the adjusted value, and it is also the value of returning to the main screen; Zone1-Zone2=adjustment amount. After finishing the setting, press and hold the “M1” key (○F ) to return to the main screen.
2. Two-point calibration
   • At the same time, long press the “▲(○G )“ and “▼(○J )“ key, CAL is displayed on the screen. Then long press the “M2” key (○H ), and CAL L is displayed on the screen. Next, press the “M1” key (○F ) to select the sensor that needs to be calibrated (CO27CO7O27NH37PM2.57RH7AMB) and the corresponding unit will blink. Press the”▲(○G )/▼(○J )” key to adjust the value of the standard gas concentration. Press the “Enter“ key (○I ) to switch CAL H (High gas concentration calibration)/CAL L (low gas concentration calibration). The ppm unit is not flashing for a moment, indicating that the calibration value has been stored. Long press the “M2” key (○H ) for a calibration calculation. At the same time, the screen displays the calibration reading to confirm the accuracy. Short press the “M1” key (○F ) to set the next gas calibration, or long-press the “M1” key (○F ) to return to the main screen.
3. Clear Two-point calibration
   • Set the same calibration value for CAL L and CAL H, and then proceed with the calculation. After the calibration is completed, the original calibration value is cleared

Rechargeable Batteries

Battery message:

• Battery OK: Measurements are possible
• Battery Low: The battery needs to be recharged, measurements are still possible
• Battery Exhausted’: Measurements are not possible

Battery installation:

• This device is supplied with a Li-ion 18650 3.7V rechargeable battery *3 pcs.
• Please confirm whether batteries + polarity are Li ion18650 positive bump specification and install batteries in the correct polarity. If the battery polarity is reversed, the capacity will be insufficient and the battery life will be shortened.

Battery charging:

• The charge lamp (○E ) lights up while charging; the charge lamp (○E ) goes off when charging is completed. (5V/1A USB adapter charger)
• Note: 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.
• To cause an impact on the accuracy of temperature when charging, please use a fan to blow toward the temperature sensor (○C ) directly to get a compensated balance of temperature and humidity between the temperature sensor and the surrounding area.

Safety Instructions

Warning: Your safety is very important to us. To ensure to use of the device correctly and safely, we would like to draw your attention to reading the warning and the entire User Manual before using the device. These are important safety information and should be observed at all times.

1. Please handle the device lightly, do not subject the device to impact or shock.
2. Do not immerse the device in water. Water can cause electric shock, fire, or malfunction which may result in damage.
3. Do not keep the device in a hot and moist environment. Keep the device away from the heat source or near water.
4. Please use a standard USB power supply (such as a PC’s USB port, or a universal AC adapter with a USB port). Improper power supply can cause serious damage to the device, or result in injury or death to the user.

Product Care

To ensure you receive the maximum benefit from using this device, please observe the following guidelines.

1. The maximum capacity of the SD card is 16G.
2. During battery charging, the temperature of the device rises. The temperature and humidity sensors are affected. At this time, 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 with the local dealer or a qualified repairman if the device needs servicing.
4. Caution – The CO and NH3 sensors must be replaced every 3 years.
5. Cleaning – Disconnect the power before cleaning. Use a damp cloth, do not use liquid cleaning agents, such as benzene, thinner, or aerosols.
6. Maintenance – Recommend that the user conducts a comprehensive test and calibration every year to ensure the normal operation of the device.

Specifications

CO 2

| 0~9,999ppm (5,001~9,999ppm

over range)

| ±50ppm or 5% of reading, whichever is greater (0~5,000ppm)|

1ppm

CO| 0~1,000 ppm| ±5%~±10%| 1ppm
O 2| 0~25%| <2% FS/0.1 mbar| 0.01%
NH3| 0~100ppm| Performance indicator only
PM2.5 PM10| 999 ug/m3| ±15% or ±15 μg/m³, whichever is

greater

| 1 ug/m3
RH| 0~100% RH| ±3%@25°C (20~80% RH), others

±5%

| 0.01%
Temperature| 0~50 ° C| ±1 ° C| 0.01 ° C
Barometer| 50~110 kPa| ±0.4kPa| 0.1 mmHg
Operating Conditions| 0~40°C (32~104°F), 0~95% RH, non-condensing, with lithium-ion batteries 0~50°C (32~122°F), 0~95% RH, non-condensing, without lithium-ion batteries
Storage Temp.| -20~60°C (-4~140°F), 0~85% RH, non-condensing, without lithium-ion. batteries
Power Supply| Rechargeable Battery : Li-ion 18650 3.7V *3 (batteries not included)
AC Adapter : 5V±5% >1A, 100~240 VAC, 50/60 Hz
Storage Capacity| depend on SD card capacity (max.16G SD card)
Comm. Interface| RS485 ModBus BR19200、N、8、1
Alarm| 80db±5%@10cm
Volume|
---|---
Weight| 305g (without batteries)
Dimension| 204.5×91.7×49.6 mm (8.1×3.6×2 inch)

• Note: After power-on, it would take 20 minutes for the device to stably measure the temperature and relative humidity.
• EMC/RFI: Readings may be affected if the unit is operated within a radio frequency electromagnetic field strength of approximately 3 volts per meter, but the performance of the instrument will not be permanently affected.

Sensor warm-up time and logging Interval:

No.| Sensor| **** Warm-up time| Data logging interval time setting
---|---|---|---
After powering on and standby time, data logging can be operated.| Data logging interval time setting
1| CO2| ＜1 minute| After powering on for 5 minutes| 2 seconds~60 minutes
2| CO| 5 minutes| After powering on 5 minutes| 2 seconds~60 minutes
3| O2| ＜1 minute| After powering on for 5 minutes| 2 seconds~60 minutes
4| NH3| 5 minutes| After powering on for 5 minutes| 2 seconds~60 minutes
5| PM2.5 PM10| ＜1 minute| After powering on for 5 minutes| 2 seconds~60 minutes

Installation Instruction

1. You can put CM-500 on the table (please pull out the Housing Stand○P ) or hang it on the wall.
2. Please note the following when hanging it on the wall. Choose a suitable location to install CM-500, and fix a screw to the wall.

Package contents

• Handheld multi-gas detector Manual
• USB 1.5M cable
• SD Card
• CO2 Meter, Inc.
• 131 Business Center Drive, Ormond Beach, FL 32174
• Sales@CO2Meter.com
• www.co2meter.com

Documents / Resources

| CO2METER CM501 Handheld Multi Gas Detector [pdf] Instruction Manual
CM501 Handheld Multi Gas Detector, CM501, Handheld Multi Gas Detector, Multi Gas Detector, Gas Detector, Detector
---|---

References

• IIS7
• CO2 Meters, CO2 Sensors, CO2 Monitors | CO2Meter.com
• CO2 Meters, CO2 Sensors, CO2 Monitors | CO2Meter.com

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