MRC-2013-Catalog - page 56

56
BALANCES
Data exchange through
USB storage devices
Updating balance
software
Exporting weighing
data
Exporting/importing
databases
Exporting/importing
balance settings
Exchanging data
between balances
Mass comparators are devices designed for determining
the differences between masses of calibration weight (B)
and reference weight (A).
Comparators are most often used in measuring laboratories
for calibration of weights and masses.
MRC offers comparators designed for calibration of weights
and masses class E1, E2, F1, F2, M1 according to OIML R111,
with masses from 1mg to 20g with readability 1 μg.
Comparator MGB-21KO consists of two components.
One of them holds the electronic module, and the other
precise mechanical measuring system Such solution
guarantees elimination of temperature influence (warming
of electronic elements) on the indications of comparator.
Comparator is equipped with big graphic display with user
friendly menu. In order to guarantee proper accuracy of
measurements, a half-automatic system of external
calibration with calibration weight has been applied.
Comparator is equipped with esthetic, cylindrical shaped
weighing chamber with glass draught shield.
All elements of the weighing chamber are manufactured
from glass or metal which minimizes the influence of
electrostatic charges on weighing result.
Comparator is equipped with user friendly menu.
The software allows for composition of GLP procedures as
standard printout or as freely definable non-standard
printout. Each comparator is equipped with Ethernet, RS
232, 2×USB & possibility of connecting additional display as
standard.
Mass Comparator
Electronic level
indicator
ALARM function
Graphic level
indicator
Programmable
acceptable tilts
Comparator is in high degree influenced by external
conditions like temperature, breeze & vibrations.
For the purpose of proper operation conditions, it is
necessary to use the comparator in a room with very
precise temperature control (laminar air-
conditioning) and place of usage should be free
from any vibrations.
Comparators do not undergo Legal Metrological
Control. Main criterion if evaluation is repeatability.
The software is equipped with application for
estimating average deviation by two methods: ABA
or ABBA, for maximally 20 repetitions. After running
the procedure, the software generates the report
with results.
MGB-21KO
Model
MGB-21KO
Maximal capacity
21g
Readability
1μg
Range of electromagnetic compensation
0...21g
Repeatability
1μg (for Max 20mg), 3μg (for Max=20mg-5g), 5μg (for Max=5g-20g)
Stabilization time
10...20 s
Calibration
internal
Pan size
Ø
14mm
Weighing chamber dimensions
Ø
90x90mm
Calibration range according to OIML R111
100mg-20mg (E1), 1mg-200g (E2 - M1)
Working temperature
+15 - +35°C
Change rate of working temperatures
±0.5°C/12h
Humidity
40 - 70%
B
1...,46,47,48,49,50,51,52,53,54,55 57,58,59,60,61,62,63,64,65,66,...738
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