COSA Xentaur SF6 Purity Pro - Manual (Page 7)

7
2-2. Procedures from Power ON to Measurement
1) The power is turned on by pressing the POWER key until the buzzer beeps. The
initial display (self-diagnostic display) will show up as well. A display that confirms
the setting will then appear. After two seconds, it will proceed to the basic display of
measuring mode.
Self-Diagnostic Display Confirmation Display
Caution
This instrument does not indicate a correct reading if the measuring gas and base gas are not
selected properly. Confirm if [Measuring Gas] and [base gas] are the ones selected.
2) Two of the messages, [Meas Gas/Base Gas] and [Air CAL], are displayed as seen below.
(Refer to WARNIN AIR CAL.)
5) After the AIR CAL is
3) Press the PUMP Key and let it sample-draw enough
reference gas (fresh air) into the instrument for about
two minutes (the color of the display reverses while
the pump is operating.)
4) After the indication is stable, press the PUMP key for
the pump to stop operating. Press the AIR CAL key until
the buzzer beeps. “AIR CAL value” will then be
displayed.