View history data
Press the MENU, choose “view history data”. Then at the top is the record total number, and the reminder
“PLEASE SELECT”. Now, if you press MINUS, then the record data will be from the first record to the second in turn. If
the record number is above 10, and you want to check the specific number, you press the MENU again, then you can
input the exact number and check that record(press the MENU to move the cursor, and press the MINUS and PLUS to
change the number), press ON/OFF to confirm and then you will see the detailed record.
In the detailed record interface, at the top are the record total number and current number. In the middle are the date
and time, and the concentration is at the bottom.
Erase history data
To make sure the detector work perfectly and you can check the history data quickly, we suggest you to erase the
history data regularly. Press MENU, choose the “Erase ex_flash”, password is needed (the password is 9999), then
press ON/OFF, it shows that “erasing”, and when finished, it will turn back to the detecting interface.
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.
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