Calibration - Kanomax 3444 User Manual

3.4.2 CALIBRATION

Use the [△][▽] keys to move the cursor to select the items and then press the [SET] key to
start each item. Press [MENU] key to return to the menu screen.
＜BACKGROUND＞
[START/STOP] key ↓
Measurement ended ↓
For a proper user calibration, please perform cleaning
process before starting user calibration and warm up the
instrument over 20 minutes.
For user calibration, please refer to "2.4 User Calibration"
Select "User Calibration" on the menu screen to start user
calibration. Please start from "BACKGROUND(background
adjustment)", "SPAN(sensitivity adjustment)" in order.
First start with the background adjustment, move the
cursor to "BACKGROUND", press [SET] key entering the
background adjustment screen.
Follow the instructions shown on the screen,
1. Pull out (Open) the filter open/close knob
2. Raise up (Close) the inlet cover
3. Switch the sensitivity control knob to "ZERO" side
Press the [START/STOP] key when the above actions are
completed.
There will be a 6 second measurement.
During the measurement, the background instantaneous
value (CPM) will be displayed.
The remaining measurement time is displayed at the
bottom left of the screen.
After the measurement ended, the average background
value (CPM) will be displayed on the screen.
Press the [SET] key to apply this value for adjustment.
Press the [MENU] key to cancel and return to menu.
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