Land 4500 MKII Premier, Руководство по эксплуатации и обслуживанию

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Model 4500 Premier Dust and Opacity Monitor
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CALIBRATION CHECK (CAL CHECK)
On selection press the
‘
ENTER' (
↵ ↵↵ ↵↵
) key. The monitors will perform a
zero and span check . This will take approximately three minutes to
complete. During the first half of this period a zero point reflector is
automatically placed into the sight path of the system. During the
second half of this period the zero point reflector remains in place and a
span filter is automatically placed before it into the sight path.
RE-CALIBRATE
On selection of ‘Re-Calibrate’ press the
‘
ENTER' (
↵ ↵↵
↵↵
) key to initiate the
re-calibration sequence. This sequence is easily followed via the sub-
menu described below.
(Clear Stack Calibration)
This menu provides a clear stack calibration sequence. On selection
press the ‘ENTER’ (
↵ ↵↵ ↵↵
) key. The display will show 'Clear path'. Ensure
the that no obstruction, dust, gases are present in the sight path
that would effect a zero opacity condition
. When the clear stack
conditions are satisfactory, press the ‘ENTER’ (
↵ ↵↵ ↵↵
) key to continue.
100% Point Calibration
The next sequences follow automatically until '100% point' is displayed.
This is a request for a 100% opacity condition to be set up. The simplest
way to achieve this is to unclip the Transceiver case and swing it open.
This breaks the line of sight path to the Retro-Reflector and creates an
100% opacity condition. When ready, press the
‘
ENTER' (
↵ ↵↵ ↵↵
) key.
The rest of the sequence follows automatically until the display shows
'Re-cal complete'.
↵ ↵↵
↵↵
↵ ↵↵
↵↵
↵ ↵↵
↵↵
Opacity: 0%
Cal. Check:
Opacity: 0%
Re-Calibrate:
Opacity: 0%
Clear Path
Opacity: 0%
100% point
Opacity: 0%
Re-cal complete