Consilium ST450EC - Calibration for Toxic and Oxygen Sensors

25
ST450EC
v1.11
4.1 Calibration for Toxic sensors and Oxygen sensors
4.1.1 Calibration Zero level (ZERO calibration)
Proceed as follows:
 Activate the USER MENU as described in chapter 3.2.2.
 Select CAL ZERO menu and follow the procedure shown below:
▲
▼
CAL ZERO
CAL ZERO
0.0
ppm
0.6
ppm
PASSED
FAILED
CALIBRATION
SAVE ZERO
YES
PASSED
NO
CAL TIMER
STABILIZE or 60 sec.
IN PROGRESS
TEXT: [IN PROGRESS]
BLINKS
0.0
ppm
CAL ZERO
&PRESS SELECT
alternately
APPLY ZERO GAS
Bottom text:
Timeout
300 sec.
APPLY ZERO GAS
CAL ZERO
0.0
ppm
YES
NO
Timeout
300 sec.
BACK TO NORMAL
OPERATION
← BACK
CAL ZERO
CAL SPAN
SETTINGS
IMPORTANT NOTE:
TOXIC SENSORS
o If the gas detector is mounted in
an area with clean air the ZERO
calibration can be started.
o If the surrounding environment
does not contain clean air,
synthetic air should be used
during the ZERO calibration
o Apply synthetic air with a flow of
20-30l/h
IMPORTANT NOTE:
OXYGEN SENSORS
o Always apply Nitrogen (N
2
) to
perform a ZERO calibration, flow
20-30l/h.