Consilium ST450EC - Adjusting Sensitivity (SPAN Calibration)

26
ST450EC
v1.11
4.1.2 Adjusting sensitivity (SPAN calibration)
Proceed as follows:
 Activate the USER MENU as described in chapter 3.2.2.
 Select CAL SPAN menu and follow below procedure:
▲
▼
PASSED
FAILED
50.0
ppm
28.0
ppm
CALIBRATION
CAL SPAN
CAL SPAN
SAVE SPAN
50.0
ppm
LARGE SPAN
CAL SPAN
YES
YES
LARGE SPAN
NO
PASSED
NO
IN PROGRESS
50.0
ppm
CAL SPAN
CAL TIMER
180 sec.
Use flow of 20-30 l/h
APPLY GAS: [TIMER]
CAL SPAN
0.50
ppm
SELECT SPAN GAS VALUE
PRESS ▲ TO INCREASE
PRESS ▼ TO DECREASE
SET CONC ▲ ▼
Timeout
300 sec.
CAL SPAN
50.0
ppm
YES
BACK TO NORMAL
OPERATION
NO
Timeout
300 sec.
← BACK
CAL ZERO
CAL SPAN
SETTINGS
IMPORTANT NOTE:
TOXIC SENSORS
o Use SPAN gas with a gas level
around the TLV values.
IMPORTANT NOTE:
OXYGEN SENSORS
o When using clean environmental
air to calibrate the SPAN at
20.9%, ensure that the ambient
air contains 20.9 Vol. % Oxygen,
otherwise use synthetic air for a
SPAN calibration.