Sensor Poisons - Macurco CX-6 Instrucciones Para El Usuario

Macurco CX-xx Operation Manual
When trouble codes exist for both sensors at the same time, the two trouble codes will be displayed alternately.
If there are multiple error codes for the same sensor existing at the same time, the displayed code will be the sum of
error codes. E.g. The display will show "t003" if t001 and t002 exist at same time, "t821" if t820 and t801 exist at the
same time.
If the sum for a digit (ones, tens or hundreds) is greater than 9, it will display the corresponding hexadecimal
representation of the sum. The following table shows the hexadecimal representation for numbers from 10 to 15.
For example, if t040 and t080 exists at the same time then it displays "t0c0" because 8 + 4 equals 12 and the
hexadecimal representation of 12 is "c".
Note that in tXXX first digit after 't' is 8 for CO sensor and 0 for NO2 sensor. Trouble codes t900, tA00 and tc00 are
result of adding 1, 2 and 4 to first digit 8 used to represent CO sensor. Hence when adding up the trouble code for
the CO sensor, 8 is not added twice. E.g. if t820 and t810 exist at same time displayed error code will be t830.
Similarly, if tA00 and tc00 exist at the same time, then the trouble code displayed is tE00.
NOTE: 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 expired", see section 6.1 Sensor Life Reset.

5.2 Sensor Poisons

The sensors in the detector are designed with extreme sensitivity to the environment. As a result, the sensing
function may be deteriorated if the detector is exposed to contaminants, a direct spray from aerosols such as paints,
silicone vapors, etc., or to a high density of corrosive gases (such as hydrogen sulfide, sulfur dioxide) for an extended
period.
REV – 1.1
Decimal Number Hexadecimal Representation
10 A
11 b
12 c
13 d
14 E
15 F
Figure 5-2 - Hexadecimal Conversion Table
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