ALTAIR Function Checks

Confidence and Heartbeat Indicator

• The alarm lights and heartbeat indicator on the display will flash approximately every 60 seconds to indicate that the ALTAIR Detector is operating.

WARNING! 

Perform an alarm test and a bump test before each day’s use. If the instrument fails either check, the instrument must be taken out of service.

Failure to follow this warning can result in serious personal injury or death.

Alarm Test

• Check before each day's use.
• Press the TEST button momentarily. A one-second test of the alarms will occur; this includes the: 
○ display
○ alarm lights
○ vibrator
○ horn.
• If these items do not activate, remove the instrument from service.

Bump Test

• Check before each day's use.
• Press the TEST button momentarily: 
○ oxygen versions will display the current oxygen reading; calibrate the unit it it reads other than 20.8%.
○ "TEST" "GAS" "?" will display.
○ alarm test will activate.
• Press the TEST button again while "TEST" "GAS" "?" is displayed to activate the Bump Test mode.
○ the hourglass and "GAS" will display.
• Apply gas only AFTER the hourglass and "GAS" are displayed.
○ If gas is detected, the display will indicate "OK".

NOTE: See Table 1 for applied gases.

• Press the TEST button again:
○ The "√" that appears on the display:
▪ indicates that the instrument passed the bump test.
▪ remains for 24 hours, indicating that a bump test was performed on this instrument within that last 24 hours.

NOTE: See Figure 6 for details.

• If the "√" does not appear and "ERR" is indicated: 
○ Check that the: 
▪ Sensor inlet is not clogged
▪ correct calibration cylinder is used to perform the bump test
▪ gas cylinder has not expired and is not empty
▪ gas was applied at the appropriate time
▪ gas tubing is seated in the front instrument case during testing.
○ Repeat the bump test process as needed.
• If the "√" does not appear, calibrate the instrument and repeat the Bump Test.

Figure 6 Bump Test Flow Chart

Table 1 Calibration/Bump Test Values

INSTRUMENT TYPE BUMP TEST GAS CALIBRATION GAS
CO 60 ppm 60ppm
H2S 40 ppm 40 ppm
O2 <19%* 20.8%
*The O2 bump test can also be performed by exhaling on the sensor inlet for approximately three to five seconds.