Hach 900 MAX Water Heater User Manual


 
Section 1
Page 17
8990int.fm Front Panel
Status Bar
The Status Bar appears along the bottom edge of the display.
The appearance of the status bar changes depending upon the
function performed (Figure 1). The lower left corner of the Status Bar
indicates whether a program is Complete, Running, Halted, or Ready To Start.
If it is not needed during a programming step, it disappears.
The lower right corner displays system alarm conditions, such as low memory
battery, jammed distributor etc. For a list of possible alarms refer to
section 6.4 on page 89. The status bar also lists the valid choices when
entering certain programming information.
1.2.3 Internal Humidity Indicator
The round window of the internal case humidity indicator (Cat. No. 2660)
turns pink when the internal case humidity exceeds 60 percent.
The sampler is equipped with an internal desiccant module (Cat. No. 8849) to
absorb any humidity that may have been trapped in the case during final
assembly. Under normal operating conditions, this desiccant provides long-
term protection against condensed moisture inside the case.
Replacement of the internal desiccant module is only necessary if the
indicator turns pink. (Refer to section 7.10 on page 103 for details on
replacing the internal desiccant.)
Figure 2 Humidity Indicator
Internal Humidity
Replace
Desiccant
When
Pink