Macurco CX-xx Manual (Rev-1.0) Eng
REV – 1.0
[34-2900-0512-0 ]
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6
Maintenance
The CX-xx is low maintenance. The unit uses two electrochemical sensors that have a 2-year life expectancy (in
normal conditions). The detector’s performance should be tested regularly by using gas as detailed in the Gas
Testing and Field Calibration Procedure sections.
All 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.
6.1
Sensor Life Reset
To reset the sensor life,
1.
Remove the Philips screw on the front of the CX-xx. Pull the front cover of the unit off.
2.
From normal or warm-up mode, press
Next
4 times to get to “SEn” or Sensor Mode.
3.
Press
Enter
. The display will read “rSt.C”.
a.
To reset the CO sensor life, press
Enter
.
b.
To reset the NO2 sensor life, press
Next
once. The display will read “rSt.n”. Press
Enter
.
4.
If the sensor life has already been reset, done “don” will be displayed. If it has not already been reset, “no”
will be displayed. Press
Next
to change it to “YES” (flashing).
5.
Press
Enter
to confirm the change (solid) and press
Enter
again to return to the “SEn” menu.
6.
Press
Next
until “End” is displayed.
7.
Press
Enter
to get back to normal operation. The sensor life will be reset for 2 years.
NOTE:
Once the corresponding sensor life is reset, the unit will display calibration overdue for the corresponding
sensor forcing the user to calibrate the unit before use. After a successful field calibration, the calibration overdue
will be resolved, and the detector will go into normal mode.
NOTE
: The detector does not need to be replaced when a sensor is expired. Once it displays sensor expired, the user
can replace the sensor on the detector, calibrate the unit and start using it.
WARNING
Do not disassemble unit or attempt to repair or modify any component of this
instrument. This instrument contains no user serviceable parts, and substitution of
components may impair product performance.
CAUTION
Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently
scratch the surfaces and damage the display window, labels, sensor or instrument housing. High voltage terminals
(100-240VAC) are located within this detector, presenting a hazard to service technicians. Only qualified technicians
should open the detector case and service the internal circuits. Ensure power is removed from the detector prior to
cleaning the unit. Failure to do so may result in sickness or death.
Summary of Contents for CX-6
Page 43: ...Macurco CX xx Manual Rev 1 0 Eng REV 1 0 34 2900 0512 0 43 P a g e 9 2 Auto Test Menu bUZ...
Page 44: ...Macurco CX xx Manual Rev 1 0 Eng REV 1 0 34 2900 0512 0 44 P a g e 9 3 Configuration Menu CON...
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Page 51: ...Macurco CX xx Manual Rev 1 0 Eng REV 1 0 34 2900 0512 0 51 P a g e 9 4 Select Test Menu tst...
Page 52: ...Macurco CX xx Manual Rev 1 0 Eng REV 1 0 34 2900 0512 0 52 P a g e 9 5 CAL Menu...
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Page 54: ...Macurco CX xx Manual Rev 1 0 Eng REV 1 0 34 2900 0512 0 54 P a g e 9 6 SEn Menu...
