Heath Consultants Remote Methane Leak Detector Intrinsically Safe (RMLD-I) - Manual (Page 23)

force the laser calibration sweep.
3. At the end of the first sweep, OK will be displayed. Press the UP arrow key again
to restart the sweep.
4. At the end of this sweep, Self-Test OK will be displayed. Press the UP arrow and
then SELECT to exit the Self-Test menu.
a. If it fails, it will show RETRY, and the unit is not functioning properly.
Contact HEATH for assistance.
**Note**
Laser wavelength drift is a normal characteristic of the RMLD-IS. Normally the rate of
drift is low and will not affect the Self-Test if performed on a regular basis. If the initial
reading is low when placed in the case, and requires the use of the calibration override to
force it through calibration, then the laser calibration was previously off. Survey work
conducted with a unit out of calibration may need to be redone. If initial concentration
readings are low on a regular basis such that the override must be always used, contact
HEATH for assistance.
101296-0 RMLD IS MANUAL REV J
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