Ametek Land 4500 MKIII, User Manual

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Opacity and Dust Monitor
User Guide
Model 4500 MkIII
B - 2
B2 Function Keys
The following function keys are located on the touch panel below the LCD
display on the side of the Model 4500 MkIII Transceiver:
Exit. Return to the previous menu level or cancel data entry.
Up. Change menu item or increase data value.
Down. Change menu item or decrease data value.
Enter. Select menu item or save data entry.
1. Displayed Value
When the LCD display is showing only the instrument reading, pressing the
or arrows will change the value displayed. If the units are %, the value
is Opacity, if the units are mg/m
3
, the value is Dust Density. If no units are
shown, the value is Optical density.
2. Menu Selection
When the LCD display is showing only the instrument reading, press or
to go to the menu.
Use the and arrows to select the required menu item and press
To cancel a menu selection, press
3. Data Entry
To change a data value, use the arrow to increase the value and the
arrow to decrease it.
When the value is correct, wait for the icon to appear, then press
to
store it permanently.
To abandon the change and revert to the previous value, press
The Model 4500 MkIII provides an accelerator facility for entering large
numbers.
To increase the value, hold down the arrow. The longer you hold down the
key, the quicker the value increases. Initially, values increase in steps of 1,
then steps of 10, then steps of 100, and so on. When you release the key,
the highlight steps down the digits. You can press the up or down key again
to make minor adjustments to the highlighted digit.
To store a value, wait until the highlight is on the last digit and the
symbol
is present, and then press the key.
Pressing leaves the original value unchanged. It is not possible to store a
value which is out of limits.
Decreasing the value using the arrow works in a similar manner.