Feature Sensitivity Adjustment; Operating Procedure - Center 383 Instruction Manual

6-3 Feature Sensitivity Adjustment

The Instrument provides two levels of sensitivity.
When the unit is switched on, it is set to the high
sensitivity level by default.
 To change the sensitivity, press the
When the key is pressed, the visual display will
momentarily show the two left LED's (green)
indicating Low Sensitivity level is selected.
 To switch back to High Sensitivity, press the
key. The two right LED's (red) will light momentarily
indicating high Sensitivity level is selected.

7. OPERATING PROCEDURE

WARNING!
1. Do not use the instrument in an area of
extremely high level of combustible gas.
2. The gas/vapor of organic solvent might
interfere with the function of the unit. During
detection, please eliminate the influence of the
organic solvent.
3. In order to ensure correct operation and
indication, the unit should be switched on and
warm-up in non-contaminated atmosphere.
COMBUSTIBLE GAS DETECTOR
9
key.