Sensor Poisons; Maintenance; End-Of-Warranty Signal - Macurco TX-6-AM User Instructions

The 4-20 mA signal can be used for troubleshooting:
 0 mA is most likely a connection problem

4-20 mA is normal gas reading range (0-100 ppm)

24 mA indicates a Trouble condition
Error Codes

t01 Sensor is missing
 t02 Temperature compensation failed

t04 Bad EEPROM checksum

t10 Bad EEPROM

t20 Bad calibration

t40 Factory calibration was not done
 t80 ADC reading failed

t100 Under range sensor

t200 Sensor warranty expired
NOTE: For trouble codes over 080 the display will alternate between t_1 and t00 for t100 and between t_2 and t00 for t200.
If the error mode repeats frequently, check for continuous power and proper voltage. If power is not the problem and a unit has
repeating error conditions, it may need to be returned to Macurco for service, per these User Instructions.
If the error mode indicates "Sensor warranty expired" see the Sensor Replacement section of these User Instructions.

Sensor Poisons

The gas sensor in the detector is designed with extreme sensitivity to the environment. As a result, the sensing function may be
deteriorated if it is exposed to a direct spray from aerosols such as paints, silicone vapors, etc., or to a high density of corrosive gases
(such as Ammonia, sulfur dioxide) for an extended period of time.

MAINTENANCE

The TX-6-AM requires periodic maintenance. The unit uses an electrochemical sensor with a 2-3 year life expectancy that can be
tested, calibrated and replaced in the field. The TX-6-AM replacement sensor is available through your local representative or from
Macurco. All other maintenance and repair of products manufactured by Macurco are to be performed at the appropriate Macurco
manufacturing facility. Macurco does not sanction any third-party repair facilities.

End-of-Warranty Signal

Two years after the TX-6-AM is installed the sensor end-of-warranty signal will be activated indicating that the TX-6-AM sensor has
reached the end of its warranty period. The end-of-warranty signal will cause an error code t200 "Sensor warranty expired". See Error
Codes section. In addition to the end-of-warranty signal the sensor itself has a tamper proof warranty expiration sticker dated 2 years
from the unit manufacture date. See the Macurco Fixed Gas Detection Products Limited Warranty section.
14