Heath Consultants Odorator - Manual (Page 21)

Appendix C
12
**Note** The elevation correction chart supports new style Meth-
ane ODORATORS only. Instruments manufactured
before July 1997, that have not been upgraded or cali-
brated to a methane reference other than 1.00% will not
use the elevation correction charts. Consult the factory
for using older style ODORATORS at elevation . To
identify an ODORATOR’S style or to tell if an upgrade
has been performed, check the top panel to see if there
is a snap-in bezel or a clear window in the overlay cov-
ering the display (“LCD”). Older style ODORATORS
have a snap-in bezel over the LCD. ODORATORS not
calibrated for 1.00% methane have correction charts
for that gas or reference level and can be identified by
the chart as the reading and actual values will be equal
at the reference level.