一氧化碳（carbon monoxide CO）纯品为无色、无臭、无刺激性的气体。分子量28.01，密度1.250g/l，冰点为-207℃，沸点-190℃。在水中的溶解度甚低，但易溶于氨水。空气混合爆炸极限为12.5%～74%。一氧化碳进入人体之后会和血液中的血红蛋白结合，进而使血红蛋白不能与氧气结合，从而引起机体组织出现缺氧，导致人体窒息死亡。因此一氧化碳具有毒性。一氧化碳是无色、无臭、无味的气体，故易于忽略而致中毒。
气体危害：一氧化碳会危害我们人体的健康，如果一氧化碳中毒厉害的话会导致人死亡，所以提醒大家要安全用煤气，在工厂上班的同志也要注意一氧化碳的浓度！
CO-180一氧化碳检测仪可探测一氧化碳的存在和检测百万分之1-1000(PPM)之间的一氧化碳浓度。
此表通过两种途径表明一氧化碳的存在：
·通过液晶显示屏上显示PPM读数
·通过蜂鸣提示
特征
1.取样速度快
2.大值保持
3.数据保持功能
4.自动关机功能
5.一氧化碳浓度在200 PPM以上时，蜂鸣声连续响
此检测仪通过LCD上显示读数和蜂鸣声来提示CO的存在。蜂鸣声：
·一氧化碳浓度在200 PPM以上时，蜂鸣声连续响。
·一氧化碳浓度在35 PPM 到200 PPM之间时，蜂鸣声间续响
技术参数：
| 操作温度 | 0ºC ~ 50ºC |
| 贮藏温度 | -30ºC ~ 60ºC |
| 操作湿度 | 相对湿度0-99% (不冷凝) |
| 量程 | 0 ~ 1000PPM |
| 分辨率 | 1PPM |
| 率 | ±5% 或± 10 PPM |
| 反映时间 | <2 秒 |
| 电池 | 9V，NEDA 1604A 或IEC 6LR61，或相同规格其他电池 |
| 自动关机 | 静置15分钟后仪表自动关机 |
| 传感器类型 | Stabilized electrochemical Gas-specific (CO) |
| 尺寸(HxWxD) | 160x56x40mm |
| 重量 | 180g |
标准配置：9V电池，护套，彩盒，帆布袋
Carbon Monoxide Meter
Instruction Sheet
The Carbon Monoxide Meter detects the presence of carbon monoxide
(CO) and measures concentrations between 1-1000 parts per million (PPM).
The Meter indicates the presence of carbon monoxide in two ways:
·By a reading on the LCD in PPM.
·By a beeper tone.
Safety Information-Read First
·Do not use the Meter as a personal safety monitor.
·Learn and recognize the effects of CO poisoning.
| 0-1PPM | Normal background levels. |
| 9 PPM | ASHRAE Standard 62-1989 for living areas. |
| 50 PPM | OSHA enclosed space 8-hour average level.* |
| 100 PPM | OSHA exposure limit.* |
| 200 PPM | Mild headache fatigue nausea and dizziness. |
| 800 PPM | Dizziness nausea and convulsions. Death within 2 to 3 hours. |
| *U.S. Department of Labor Occupational Safety & Health Administration (OSHA) Regulation 1917.24: The CO content in any enclosed space shall be maintained at not more than 50 PPM (0.005%). Remove employees from enclosed space if the CO concentration exceeds 100 PPM(0.01%). | |
What the Meter Does
The Meter indicates the presence of CO by a reading on the LCD and a beeper tone.
The beeper functions much like clicking of a Geiger counter:
·Above 200 PPM the beeper sounds continuously with the concentration of CO.
·From 35 PPM to 200 PPM the beeper sounds discontinuously with the
concentration of CO.
Specifications
| Temperature Operating: Storage: |
0℃to + 50℃ -30℃to + 60℃ |
| Operating humidity | 0-99% Relative humidity (non-condensing) |
| Measurement range | 0 to 1000PPM |
| Measurement Resolution | 1PPM |
| Accuracy | ±5% or ±10 PPM |
| Warm up period | <2 seconds |
| Battery | 9V NEDA 1604A or IEC 6LR61 or equivalent. |
| Auto power off | Meter automatically shuts down after 15 minutes of inactivity |
| Sensor type | Stabilized electrochemical Gas-specific (CO) |
| Typical sensor life | 3 years |
Instrument Familiarization:
1. CO sensor
2. LCD Display
3. MAX Hold button
4. Data Hold button
5. Back-light button
6. Power button
7. Battery door
DATA HOLD
The Data Hold function allows the meter to “freeze” a measurement for later reference.
1. Press the DATA HOLD button to “freeze” the reading on the indicator.
The indicator “HOLD” will be appear in the display.
2. Press the DATA HOLD button to return to normal operation.
MAX Hold
To hold the highest reading on the LCD press the MAX hold button. The MAX hold button is located on the left side of the meter (bottom button). The meter reading will not change as readings change rather it will only display the highest reading encountered since the MAX hold button was pressed. Press the MAX hold button again to return to normal operation.
BACKLIGHT BUTTON
1. Press the “BACKLIGHT” key the “light” will be appear in the display.
2. Press it again the “light” close.
POWER BUTTON
1. Press the power button power is on and the meter can measure.
2. Pull it again Power is off.
BATTERY REPLACEME
1. 
As battery power is not sufficient LCD will display “ ” replacement with one battery type 9V is required.
2. Open battery cover then take out the battery from instrument and replace with a new 9-Volt battery and place the battery cover back.
Common Sources of CO
Common sources of potentially dangerous levels of CO are:
·Poorly maintained furnaces gas heaters or fireplaces.
·Dirty or plugged chimneys or flue exhausts.
·Poorly maintained gas oil or kerosene appliances.
·Internal combustion engines (e.g. automobiles lawnmowers blowers).
CO and Appliance Malfunctions
The following table identifies typical problems that can produce high levels of CO.
| Appliance | Fuel | Typical Problems |
| Gas furnaces Room heaters | Oil natural gas or LPG (liquefied petroleum gas) | 1. Cracked heat exchanger. 2. Not enough air to burn fuel properly. 3. Defective/blocked flue. 4. Maladjusted burner. 5. Building not properly pressurized. |
| Central heating furnaces | Coal or kerosene | 1. Cracked heat exchanger. 2. Not enough air to burn fuel properly. 3. Defective grate. |
| Room heaters Central heaters | Kerosene | 1. Improper adjustment. 2. Wrong fuel (not K-1). 3. Wrong wick or wick height. 4. Not enough air to burn fuel. 5. System not properly vented. |
| Water heaters | Natural gas or LPG | 1. Not enough air to burn fuel properly. 2. Defective/blocked flue. 3. Maladjusted burner. 4. Building not properly pressurized. |
| Ranges Ovens | Natural gas or LPG | 1. Not enough air to burn fuel. 2. Maladjusted burner. 3. Misuse as a room heater. 4. System not properly vented. |
| Stoves Fireplaces | Gas wood coal | 1. Not enough air to burn fuel properly. 2. Defective/blocked flue. 3. Green or treated wood. 4. Cracked heat exchanger. 5. Cracked firebox. |
