5.1 Using the display
Two modes are available for viewing the displays in the meter:
Push Button Mode
Auto Mode
Push button mode
The push buttons provided on the front panel can be used to navigate through various displays, switching to a
different display mode.
Table 9: Push button display mode
Button Action
Left button
Advance to next page or display the first
parameter of the next page.
Right button
Select the next parameter in the current page
sequence
To activate/de-activate Boost
Auto mode
Auto Mode is the default mode for Sprint 211 display. The configured parameters scroll automatically within a
specified period. The auto cycle ends with a brief sleep mode of two minutes, following which the display cycle
is repeated. Upon power interruption, the display starts in auto mode.
5.1.1 Display types and viewing arrangements
Sprint 211 uses a Super Twisted Nematic (STN) type Liquid Crystal Display (LCD) which offers more contrast
than normal TN types. Twisted Nematic Display is the most commonly used crystal display used in digital
devices. A STN display contains a liquid crystal sandwiched between two plates of glass, which twists and un-
twists at varying degrees to allow light to pass through. When no voltage is applied to a STN liquid crystal cell,
the light is polarised to pass through the cell. In proportion to the voltage applied, the liquid crystal cells can twist
from 180° to 270° changing the polarisation and blocking the light’s path.
The example shown below illustrates how the longitudinal polarisation is twisted after passing through STN
Crystal Display.
BGX701-160-R01
Sprint 211 Installation Manual Page 29 of 48
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