Parr Instrument 6750 - Manual (Page 10)

Proximate Interface
w w w . p a r r i n s t . c o m 9
Menu Operating Pages
The 6750 Proximate Interface contains the fol-
lowing keys that lead to sub-menus.
Process Timers
Many of the tests involving proximate analysis
require holding the sample at a set temperature for
a pre-set time. As a result, a series of three inde-
pendent countdown timers are provided. By default
these timers are labeled Moisture, Ash, and VM after
the most popular items to time. Each timer has three
buttons associated with it. The fi rst button starts and
stops the timer (toggle). The timer value is displayed
to the right of the label in a HH:MM:SS format.
The next button is a reset button that will reload
the timer preset value when the timer is not run-
ning. When the timer is running the reset button is
not active.
The third button associated with each timer is a
setup button that leads to a submenu. The submenu
allows the user to change the label and duration
for a timer. Each timer has a series of tones that are
sounded when the timer reaches zero. This alarm is
repeated indefi nitely until it is acknowledged.
When the timer reaches zero, the backlighting is
turned on, if required, and a popup box is displayed
in order to allow acknowledgment of the alarm.
The popup box displays the timer tag. Pressing the
continue button inside the large popup box provides
alarm acknowledgment. If an alarm occurs before an
active one is acknowledged, the most recent alarm
popup is displayed and the prior alarm is queued
underneath it.
The lower portion of the Timers page displays
the current date and time.
Operating Controls
Device Type:
This key allows the user to customize the operation
of the device. Various screens and related prompts
will change depending on what type of device is se-
lected. This setting also determines how the device
is confi gured in a networked environment.
The device options available are:
t

Proximate Interface
t
ADL Interface
t
Total Moisture Interface
t
Balance Interface
t
Moisture Interface
t
Ash Interface
t
Volatile Interface
User Function Setup:
This key leads to sub-menus that support the confi g-
uration of fi ve factory/user defi nable function keys.
The function keys are accessible from the Diagnos-
tics page.
Calibrate Touchscreen:
This key prompts the user to touch the screen
at predefi ned points in order to facilitate touch
screen calibration. It’s important that a touch screen
stylus, rather than a fi nger, be used in order to real-
ize an accurate calibration.