Hach Sigma 950, Basic User Manual

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Figure 7 Instrument overview
1 Mechanical totalizer option 5 Display 9 Numeric keypad
2 Humidity indicator 6 Menu bar 10 ON key and OFF key
3 Status bar 7 Display button
4 Soft keys 8 Function keys
Table 14 Display bar and key descriptions
Key Description
Mechanical totalizer
option Shows the total flow (six digits) and supplements the internal software totalizers (one
resettable and one non-resettable).
To identify the total flow: Total flow = N
end
– N
start
× S
factor
, where: N = number shown,
S
factor
= scaling factor
Humidity indicator Changes from blue to pink when the humidity of the enclosure interior is more than 60%.
When the humidity indicator is pink, contact technical support to replace the internal
desiccant module.
Status bar Left side —Program status (complete, running, halted or ready to start); Right side —
System alarm conditions (such as low memory battery or clogged bubbler line)
When in the settings menus, the status bar shows the values that can be selected (e.g.,
cm, ft, in., or m).
Soft keys The function of each soft key shows on the display.
Menu bar Left side —Time and date; Right side —Current menu
Display button Sets the display to on when the front cover is closed. Push again to show additional
status information.
Note: After 3 minutes of no activity, the display switches off to decrease the battery use.
Function keys MAIN MENU —Shows the Main Menu screen. The current action is stopped if changes
have not been accepted.
LEVEL ADJUST —Adjusts the flow meter to be the same as the current head (or level
contributing flow) in the channel
RUN/STOP —Starts (or continues) a program or stops the current program
Numeric keypad Enters a numeric value
ON key and OFF key Sets the instrument to on or off.
Note: The green indicator light near the ON key flashes when the instrument is on.
English 19