Chemtrac Systems, Inc.
Page 20
3.2 SCM2500XRD READOUT, MENUS, AND CONTROLS
The menu system for the SCM2500XRD is simple to navigate, below you will find the
different screens accessible through the function keys (SETUP, ALARM, and FLUSH):
3.2.1 SCM2500XRD Main Screen
The MAIN screen on the SCM2500XRD is the screen used under normal operation of
the instrument. From this screen, all other features and menus can be accessed. The
menu screen shows with Flush option.
v
w
x
y
Definitions
u
Streaming Current Value (SCV) ranges from –1000 to +1000
v
Gain, signal amplification factor, adjustable from 1X to 20X
w
Next Flushing Cycle (optional): If the unit include sensor flush feature, the
menu display the time when the next flush will occur in days, hours, and minutes.
x
Zero Offset Conditions
Offset: OUT Offset condition OUT, actual SCV is display
Offset: IN Offset condition IN, adjusted SCV is displayed and the actual
SCV value will be display to the right of OUT.
Offset Value: -1000 to +1000
The Offset function is used to automatically zero the current reading. Once an
optimum chemical dosage has been obtained, the user can null the reading so
that the setpoint becomes referenced to zero for easier interpretation (see Setup
Screen Menu).
y
Function Keys – There are four main menu selections across the bottom for the
four buttons below. The four menus are:
SETUP – SCV Setup Menu
ALARM – Alarms Status
FLUSH – Sensor Flush Control Menu
Pressing one of these keys directly below these menu selections accesses the
functions within that menu.
u
u
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