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1. Product Introduction:
Before the formaldehyde sensor is used, it is generally calibrated first. However, since formaldehyde gas is a harmful gas, it is necessary to use the formaldehyde sensor calibration cabin for isolation calibration during calibration.
Second, the technical parameters:
The formaldehyde sensor calibration chamber is composed of a gas chamber, a valve, an air pump, and a gas concentration quantitative regulator to form a circulating gas circuit, and the two ends of the air pump and the gas quantitative regulator are connected to the gas chamber through the valve that can control the switch, and the other two ports of the gas chamber are connected to the gas sensor detection module and the sample gas through the valve that can control the switch respectively. The calibration chamber can be used to calibrate gas sensors with easily available reference materials such as solids and liquids.
3. How to use:
1) One measurement: the sample gas is directly passed into the sensor in the formaldehyde sensor calibration chamber for measurement, and the steady-state response value of the sensor is recorded, which satisfies the measurement equation;
2) sample gas concentration adjustment: the sample gas is passed into the gas concentration adjustment module, and the concentration of the gas in the sample to be measured is quantitatively increased or decreased through the module, and the increase or decrease of its concentration satisfies the mass equation;
3) secondary measurement: the gas after adjusting the concentration is again passed into the sensor in the gas detection module for secondary measurement, and the steady-state response value of the sensor is recorded, and the response value satisfies the measurement equation;
4) The above process is repeated at least once, and a system of simultaneous equations containing at least three equations is established, and the system of simultaneous equations is solved to calculate the sensor calibration parameters and sample gas concentration.
If there is a formaldehyde sensor calibration cabinSelection questionsYesVisit the official website of "Huanyi Instrument"., consult the relevant technical staff.