The front panel module is the only difference between the 3401-
B and the 3411-B gauges. The 3401-B scaler does not have
electronics that store data and perform calculations.
The following is a functional description of the 3411-B controls.
These items are labeled in Figure 2 on page 2-4.
1. Connector cover for battery charger cables.
2. The liquid crystal display (LCD) shows accumulated counts
and computed results, and it also has status indicators as
shown below:
ERR – Accumulation in progress or a computational error
has occurred.
BAT – Low battery warning; batteries are in need of a
recharge. The gauge will function normally for several hours
before it automatically shuts off.
− – Displayed number is negative in value.
3. PWR/TIME switch turns the unit on and selects the time
period for an accumulation. The SLOW, NORM, and FAST
positions correspond to accumulation periods of 4, 1, or
0.25 minutes, respectively.
4. The keypad is color coded for ease of use. Five keys are
“dual function.” The yellow
〈SHIFT〉 key activates functions
labeled in yellow. The funcitons labeled in white are
operational when
〈SHIFT〉 is not depressed.
The 〈STANDARD/MEASURE〉 key is used to start an
accumulation of either a standard or a measure count.
The second row of keys is used to determine which register will
be displayed. The
〈MS〉 (Moisture Standard) and 〈DS〉 (Density
Standard) keys are used to display the standard counts.
The 〈MC〉 (Moisture Count) and 〈DC〉 (Density Count) keys are
used to display the measure counts.
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