AccuPro-5000
™
MEASUREMENT SYSTEM OPERATOR MANUAL
Issued by Department:
Engineering
Doc. Number:
5000-00-00-002
Revision:
02
Effective Date:
10/05/2021
File: 5000-00-00-002-r2_
AccuPro_5000_Operator_Manual
Copyright© 2021 Scaletron Industries, Ltd
All Rights Reserved
Page
26
of
63
5.1
Keypad
The Control-Panel overlay embeds a 1-row by 3-column matrix of membrane switches consisting of
Down-Arrow, Enter, and Up-Arrow keys, respectively. A context-sensitive feature was added to the
arrow keys wherein a press-and-hold action held for more than 2 seconds will initiate a fine auto-repeat
of the respective key function whose rate gradually increases over the next 8 seconds, after which a
much coarser auto-repeat is initiated. This feature is intended to greatly reduce the number of required
key-presses when entering large numbers. Optional audible feedback is available that verifies control-
switch closures (See main menu option titled
•
Down-Arrow
: Press to advance backward through menu options or to decrement a numerical
value.
•
Enter
: Press to “S
elect
” a menu option or “E
nter
” a numerical value.
•
Up-Arrow
: Press to advance forward through menu options or to increment a numerical value.
5.2
Rotary Knob
A counter-clockwise (CCW) rotation of the Rotary Knob executes the same function as pressing the
Down-Arrow key. Likewise, clockwise (CW) rotation mimics an Up-Arrow keypress. A sustained
rotation of the knob initiates a repeat function of the respective function. Rotary Knob rotation is speed-
sensitive, meaning that the faster its rotational speed, the faster the repeat function is performed. For
example, a large numerical value can easily be entered by a rapid rotation of the Rotary Knob to place
the value close to target, followed by a slower rotation to settle in on a final value. Once a desired menu
option or numerical value is displayed, pressing the Rotary
Knob will execute an “E
nter
” function.
6
User Indicators
A Liquid-Crystal-Display (LCD) Module and a Status Light-Emitting-Diode (LED) Array provide
control information and alert/alarm notification to the user.
6.1
LCD Module
A 2-Line by 16-Character, alphanumeric/graphic LCD Module displays control menus, real-time
measurement data, and status messaging information. The module features an adjustable contrast by
way of an analog potentiometer located on the bottom side of the LCD Board. It also has an embedded
LED panel for adjusting backlight intensity (See main menu option titled
6.2
Channel Status LED Array
Each channel is assigned a bi-color, Status LED for indicating its high-level status. Each LED contains
both a red and green element yielding four distinctive states: Off State (Inactive), Red State
(Active/Alarm), Amber State (Active/Alert), and Green State (Active/Good). The indicated state is
determined based on a set of hierarchal rules.
The Off State has the highest priority as it indicates the absence of an Analog Input Board
–
a minimal
requirement for a channel to be considered present, or active. Any channel whose Status LED is OFF
