SC-04
Chapter 5: User Mode and Calibration • 45
Performing a Span Adjustment in E-CAL
The
E-CAL
item only appears if
E-CAL
in User Mode is set to
ON
(factory setting is
OFF
).
If
E-CAL
is set to
OFF
, see pg.42 for calibration instructions.
Preparing for Span Adjustment
To adjust the span on the SC-04, you need:
•
Calibration gas cylinder
•
0.25 LPM fixed flow regulator
•
Non-absorbent tubing
•
Calibration cup
1. Confirm that the SC-04’s calibration gas value matches the concentration listed on the
calibration gas cylinder as described on pg.47.
2. Install the calibration cup onto the SC-04. Be sure the calibration cup is installed in the
correct direction and that it is pushed on all the way.
3. Use the tubing to connect the regulator to the inlet of the calibration cup (labeled “IN”).
Performing a Calibration
1. While in User Mode, press AIR to scroll to
GAS CAL
.
Table 11: Calibration Concentration Limits
Channel
Min. Cal.
Concentration
Max. Cal.
Concentration
Ammonia
8 ppm
400 ppm
Chlorine
0.15 ppm
10.00 ppm
Hydrogen Cyanide
0.9 ppm
30.0 ppm
Nitrogen Dioxide
0.50 ppm
20.00 ppm
Phosphine
0.05 ppm
20.00 ppm
Sulfur Dioxide
0.50 ppm
100.00 ppm
POW ER
MODE
AIR
Front View
Side View
GAS CAL
