MSA ALTAIR Pro Manual De Operación página 38

• The instrument displays an error code if it detects a problem during
startup or operation. See TABLE 5-1 for a brief description of the
error and proper corrective action.
• When an inoperative component is located by using the guidelines,
consult the "Repair Procedures" later in this chapter to see if it is a
replaceable part.
Table 5-1. Troubleshooting Guidelines
PROBLEM DESCRIPTION
DISPLAY
TOGGLES
BETWEEN:
TMP/ERR Temperature out of range
AD/ERR Sensor feedback error
EE/ERR EEPROM inoperative
PRG/ERR Program Memory
inoperative
RAM/ERR RAM inoperative
LED/ERR LED inoperative
VIB/ERR Vibrator inoperative
UNK/ERR Unknown Error
UND/ERR Sensor Under range
Low battery warning
indicator and beep
every 30 seconds
Low battery Alarm
indicator (horn sounds,
/ERR LEDs activate)
SNS/ERR Sensor Error
Instrument does Low battery
not turn ON
ACTION
Return instrument to normal
temperature range and recalibrate.
If condition persists, contact MSA
during warranty period.
Remove battery and recalibrate.
If condition persists, contact MSA
during warranty period.
Contact MSA during warranty period
Contact MSA during warranty period
Contact MSA during warranty period
Verify operation of two alarm
LEDs in alarm
Verify operation of vibrator in alarm
Contact MSA during warranty period
Calibrate instrument
Remove from service as soon as
possible and replace battery
Instrument is no longer sensing gas.
Remove from service and replace
battery
Calibrate instrument. If instrument
fails calibration, replace sensor
Replace battery
5-3