Liquid Crystal Display - Honeywell 5701 Operating Instructions Manual

MAN0443.P65 Issue 13 Aug 04
05701-M-5001 A02279
CHAPTER 3 CONTROLS AND FACILITIES
2.2

Liquid Crystal Display

2.2.1 General
The LCD provides a display of the connected
sensor reading and its status, or if maintenance is
being carried out on the sensor, information on the
sensor set points and calibration data.
The display can be divided into four parts:
Analogue Display.
Message Display
Digital Display.
Icon Display.
2.2.2 Analogue Display
This consists of 25 segments providing an
indication of the sensor gas reading in the form of
an analogue bar graph which covers the sensor
range between -10% and +110% fsd.
There are two possible modes of operation:
a. Solid in which the segments fill the area
between zero and the actual gas reading.
b. Single Line in which a single segment
indicates the actual gas reading.
Each of these modes can be operated as either a
rising or falling display. A peak reading facility is
available which maintains a segment at the highest,
or lowest, gas value obtained by the sensor since
the previous peak reading reset. This is a useful
recording tool for the behaviour of the connected
sensor.
The default mode of operation is solid current gas
reading display with a peak reading facility.
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