6. Convenient & Useful Functions
45
DA-650/-645/-640
Menu
Submenu
Description
Outline
Calibration (Check) is required for correct
measurement.
Calibration with air and water corrects the
precision of equipment while Check verifies
the correctness of unit with water. Just follow
the navigation for calibration or check. The
detailed condition for calibration can be
selected. The alarm of due time for
calibration or check can also be selected.
6-7-1
Check/Calibration
The precision of density meter can be
corrected by calibration while Check verifies
the calibrated unit some time after
calibrated. Calibration uses air and water
while Check uses only water. Calibration is
required and performed first in the morning
prior to the day’s work while Check can be
performed any time after calibration or when
calibration is unable. Here you select
calibration.
6-7-2
Alarm Setup
This function alarms the operator about
calibration (check).
You can select on or off of alarm and due
time for calibration (check).
6-7-3
Calibration
Setup
Calibration usually uses air and water but
density standard liquid of which density is
known can also be used. Here you select
sample (normally air and water) and
measure condition for calibration. (for
calibration sample, refer to 6-1-2 Edit
method)
6-7-4
Check Setup
Check usually uses pure water but density
standard liquid of which density is known can
also be used. Precision of Check is assured if
the density of sample is away from check
point (pure water). Here you select the
sample (normally pure water) and measure
condition for check.
6-7
Check/Calibration
6-7-5
Calibration Record
You can view in graph the calibration record
of past 10 years (changes of oscillation
frequency). Up to 20 record of calibration
can be printed out or stored in USB flash
drive. Data stored in USB can be
manipulated on PC.
Содержание DA-640
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