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CO span
O
2
zero
NOx span
SO
2
span
O
2
span
Automatic
calibration
NO
x
, SO
2
zero
CO zero
Automatic calibration
• Calibration tolerance: ±0.2% FS
• Automatic calibration output hold: Possible
(Example in 4 component analyzer):
• Calibration cycle: Once/day (variable, up to 7 days)
• Calibration gas feed time: 2 to 10 min. (variable), common to each gas
• Display: Calibration failure
Error code (E-) is displayed when one-time calibration volume is more
than ± 20% FS on both zero and span and it is under calibration:
CAL lamp ON
Ordering information
1. Measuring range of analyzer
2. Length of sampling pipe
3. Insertion length of sampling tube
4. Power voltage/frequency
5. Instruction required when standard gas is not necessary
6. Instruction required when individual inspection is not necessary
7. Necessity of spares and supplies (for 1 year)
8. Additional functions
Note: When special functions such as remote range selection, output hold by external contact, auto-
matic calibration, automatic calibration start by external contact, insulation output, measured
value concentration alarm, etc. are required, they should be separately designated.