MSA Sirius Mode D'emploi page 54

4. Push the ON-OFF/ACCEPT button to zero the instrument.
• Instrument must be in fresh air to perform the zero.
• CAL ZERO flashes.
NOTE: To skip the Zero procedure and move directly to the
calibration span procedure, push the RESET/
If no button is pushed for 30 seconds, the instrument
returns to the Measure mode.
• Once the zeros are set, CAL SPAN? flashes (FIGURE 5-3).
Figure 5-2a. Zero Flag
Figure 5-2b. Zero Flag
button.
5-3