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| Microbalances
MXA/F |
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| Functions: |
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Filling |
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Checkweighing |
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Percentage |
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Statistics |
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Air
buoyancy
correction |
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3
anos de qarantia |
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MXA
series of balances has been designed to meet high requirements for
measuring small masses with high readability
(d = 1 µg). They are equipped with graphic display with extended
user menu. In order to guarantee proper accuracy of measurements,
has been applied automatic system of calibration.
Microbalance consists of two components. One of them contains electronic
modules, and the other precise mechanical measuring system. Such solution
guarantees elimination of temperature changes influencing the indication
of the micro balance.
Microbalance series MXA/F is offered with capacity 5 g with readability
1 microg. Series MXA/F is specially prepared to weighing filters, instead of glass draught shield, like in MXA series, here user has special aluminum casing which protects measured filter from influence of external factors. All elements
of the weighing chamber are manufactured from metal which
minimalizes the influence of electrostatic charges on weighing result.
Microbalance is equipped with user friendly menu. User has access
to multiple functions and measuring units which allow for specification
of working requirements. Microbalance software allows for composition
of GLP procedures as standard printout or as freely definable non-standard
printout. Balance series MXA is equipped with RS 232, PS/2 output
and possibility of connecting additional display as standard. |
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| Technical data: |
MXA 5/F |
| Max capacity |
5 g |
| Readability |
1 µg |
| Repeatability |
2 µg |
| Linearity |
±3 µg |
| Pan size |
ø 100 mm |
| Weighing chamber dimensions |
ø 118 × 50 mm |
| Stabilization time |
20 s |
| Calibration |
automatic (internal) |
| Working temperature |
+18 ° - +30 °C |
| Power supply |
230V 50Hz / 11V AC 380 mA |
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Microbalance is in high degree
influenced by external conditions like temperature, breeze and vibrations.
For the purpose of proper operation conditions, it is necessary to
use the microbalance in a room with very precise temperature control
(laminar air-conditioning) and place of usage should be free from
any vibrations (anti-vibration table).
Microbalances do not undergo Legal Metrological Control (verification)
- norm PN-EN 45501 specify only weighing equipment class I with
"e" bigger or equaling 1 mg. when estimating the errors
of indications, one should bear in mind, that in accordance to international
norms included in R111 verification is not performed below 1 mg,
and the tolerance of the weights of the highest class E1 is respectively:
for 10 g ± 0.02 mg, and for 20 g ± 0.025 mg. for this
purpose , the main criteria for evaluation of microbalances is repeatability
and linearity.
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