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Target Point Calibration
Note: Calibration needs to be done by professionals and with necessary accessories and standard gas.
Prepare the standard gas before starting the target point calibration. In detection mode, press
“MENU”, select
“calibrate span”, press ON/OFF button to enter. Then you will need to enter password. (If you need password,
please contact the manufacturer to get it)
After entering the password successfully, press ON/OFF to enter the target point calibration interface, as
shown in the picture. The interface will display
“concentration”, “set value. The concentration is the result got
from the calculation of several internal calibration parameters. The process of calibration is the process to
recalculate the internal parameters of the device. The set value is the value need to be entered manually; it
should be the concentration of the standard gas to be calibrated. Select the parameter under the current
interface, modify its value with
“PLUS” and “MINUS” button.
The calibration process is as below:
1. Connect the detector with standard gas cylinder by hose.
2. Enter the target point calibration interface, set the
“SET value” as the standard gas concentration.
3. Release the standard gas to the detector in a flow rate of 500mL/min. The value of
“concentration” will
become larger gradually, and become stable after 30seconds.
4. When the value of
“concentration” is stable, press the “ON/OFF” button, the value of “concentration” will be
same with or almost same with the
“Set value”. The calibration is finished.
5. Cut off the standard gas supply. Press
“ESC” to go back to detection interface.
