Since we offer so many types of CO2 meters, you may be wondering what a manometer is, and why we offer one.
Basically, a manometer measures air or gas pressure. For example, your tire pressure gauge is a simple type of manometer.
Many of our clients who need to measure CO2 levels in a closed-loop system use a manometer to determine the volume of CO2 that passes over a sensor in a given period of time.
Suppose you want to precisely measure the change in CO2 levels in a sealed biological incubator every 5 seconds. This means you need to connect inlet and outlet tubing to the incubator, then use a pump to transfer the gas inside the incubator to a CO2 sensor and return it back again. How will you know that the CO2 level readings at 0 seconds and 5 seconds represent the exact levels of CO2 inside the incubator several inches away?
That's where a manometer comes in. If you know the pressure provided by the pump (using a manometer) and the inner diameter and length of the tubing, you can compute how long it takes for the air in the incubator to exchange with the air around the CO2 sensor.
There are many other industries who use manometers. For example, an HVAC technician uses a manometer to verify the pressure in the pipe that feeds natural gas to a furnace. Because each industry measures gas pressure using different units of measurement, our digital manometers can switch between the 11 most common with a simple press of a button.
You may never need a manometer, but if you do, you'll find ours are the best value on the market today.