ShenZhen Korno Import&Export Co.,Ltd
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③
Detector Calibration and Warranty
We guarantee all detectors were being precisely calibrated with certain
density standard gas. It’s not necessary for user to re-calibrate the detector
after purchase unless encounter special situation. Also the calibration need
to be operate under the guidance of the professional.
All GT903 series products we provide 12-Months warranty for the
detector and 3-Months warranty for the accessories. Beside , we have free
calibration once a year during the entire products service life.
④
Instruction of detector display dimmed out
Power capacity protection program had been preset for all GT903
multifuncional gas detector, when no operations were made within 30
seconds the protection program will activate and the display of the detector
will dim out,user can light up the display by press power button.
⑤
GT903 series hot key instruction
Mute:
When detector is in the state of alarming user can mute the
detector by pressing the “Up”or“Down”button.
Save manually:
When storage mode was preset as manually, user can
save the gas concentration value of each channel by long press the
“run/stop” button in detection interface
Function menu:
When detector is in the detection menu user can
enter system menu by pressing “Ok” button for 5 seconds
