Instruction manual

Table 2-1. Autocalibration Allowable Sensors & Required Calibration
Cylinders
AUTOCALIBRATION
ALLOWABLE
SENSORS
EXPECTED GAS
CONCENTRATION
THREE-GAS
CYLINDER
(MSA P/N 10010162)
FOUR-GAS
CYLINDER
(MSA P/N 804770
OR P/N 711058)
COMBUSTIBLE
58% ✔✔
OXYGEN
15% ✔✔
CARBON
MONOXIDE
300 PPM ✔✔
HYDROGEN
SULFIDE
10 PPM ✔
If any other sensors are installed in the
instrument, the feature is automatically disabled.
The Autocalibration feature can also be disabled
by using the MSA FiveStar LINK
TM
.
• To access Autocalibration, press and hold
the RESET button for three seconds.
• (FIGURE 2-39) display appears.
• Press the RESET (YES) button to start the
Autocalibration sequence.
• The instrument display indicates
that it is adjusting zeroes.
NOTE: During the Autocalibration zero
procedure, the limits on the
zero adjustments present
during the Fresh Air Setup
option are eliminated.
NOTE: For autocalibration, all
gases must be in one cylinder.
See TABLE 2-1 for allowable
cylinders and concentrations.
• After zeroes are adjusted, the
instrument prompts the user to
apply calibration gas (FIGURE
2-40) and to cycle through the gas
readings (FIGURE 2-41)
one-at-a-time for 90 seconds.
• If the Autocalibration sequence
has passed, the instrument briefly
displays a screen reminding the
user to remove the calibration gas
Figure 2-39.
Auto Cal? YES/NO
Figure 2-40.
Apply Cal Gas
Figure 2-41.
Example of a
Combustible Gas
Reading
Instruction Manual Chapter 2, Using the FiveStar Alarm
FiveStar Alarm 2-21