FAQs for Breathalyzers
Q: What is %BAC?
A: Blood Alcohol Content or Blood Alcohol Concentration, abbreviated BAC, is the concentration of alcohol in a person's blood. BAC is most commonly used as a metric of intoxication for legal or medical purposes, and it's usually measured as mass per volume. For example, a BAC of 0.05% means 0.05 grams of alcohol per 100 grams of a person's blood, or 0.5 grams of alcohol per 1000 grams of blood.
Q: Why do I need a breath alcohol tester?
A: A Breathalyzer is a valuable purchase to ensure personal safety and the safety of others. An individual may purchase one for self-testing and monitoring to avoid the consequences of driving while intoxicated, or simply for a general understanding of how alcohol affects the body.
Since factors like weight, muscle mass, and recently consumed food or beverages all affect the measurement of person's blood alcohol content (BAC), it's impossible to accurately gauge intoxication level without a measurement tool like a breathalyzer. People are often enlightened when they measure their %BAC, particularly on different occasions after the same amount of alcohol is consumed.
Q: How often should I calibrate my breathalyzer to ensure accuracy?
A: We recommend re-calibrating breathalyzers with semi-conductor sensors every 300 tests or once a year, whichever one comes first. Breathalyzers with fuel cell sensors will remain accurate for thousands of tests, but should still be re-calibrated annually. Additionally for these models, using the breathalyzer regularly can actually help keep it accurate, as the moisture in exhaled human breath is beneficial to the sensor.
FAQs for Domestic Gas Alarm Products
Q: How should I test my Alarm and how often?
A: You should test your Alarm regularly (at least monthly) to ensure it is working.
To test your Alarm press and hold the test button for up to 10 seconds to ensure your Alarm sounds.
Guidance and best practices for testing are as follows:
1. After the Alarm(s) is installed
2. Once monthly thereafter
3. After prolonged absence from the dwelling (e.g. holidays)
4. After repair and/or servicing of any of the systems elements or household electrical works.
If you have a system of interconnected Alarms, then you need to check each Alarm similarly to ensure they sound when their test button is pressed and that all other Alarms sound.
You can also use control devices such as the Ei1529RC (for hardwire) or Ei450 (for RF) to test your Alarms.
Q: How do I clean my Alarm?
A: Warning: For Mains powered Alarm, disconnect the AC mains at the fuse box before following the cleaning instructions.
Your Alarm needs to be free from dust and cobwebs. We recommend that you use the flat open end of your vacuum cleaner along the sides of your Alarm to remove any dust, insects and cobwebs. Clean the cover by wiping it with damp cloth and dry it thoroughly with a lint free cloth.
Do not use any cleaning agents, bleaches, detergents or polishes, including those in aerosol cans.
Clean your Alarm regularly to help prevent contamination.
Other considerations to prevent Smoke Alarm contamination:
Protect your Alarm against dust during any building work, renovation, sanding etc… excessive dust and debris can contaminate the smoke chamber or heat chamber.
Locate your Alarm away from very dusty or dirty areas.
Do not locate in insect infested areas. Small insects getting into the smoke detector chamber can cause intermittent alarms.
FAQs for Industrial Gas Detection
Q: How to correctly select gas control alarm system?
A: Nowadays, the application of gas control alarm sysems is more and more extensive, but a lot of users do not know how to choose the right type. So today we will discuss how to select a suitable gas control alarm system from the below 5 aspects.
1.Define the detection purpose
2.Select the appropriate gas detection principle
3.Wiring choice of the alarm system
4.The choice of communication mode of alarm system
5.Several common alarm system structures