AVK-1000 Automatic Vacuum Mass Comparator in Mass Comparators - Radwag Balances And Scales

AVK-1000 Automatic Vacuum Mass Comparator

Radwag Balances and Scales - Advanced Weighing Technologies
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AVK-1000 Automatic Vacuum Mass Comparator

AVK-1000 Automatic Vacuum Mass Comparator in Mass Comparators
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AVK-1000 Automatic Vacuum Mass Comparator
Product code: WL-417-0002
Overview
RADWAG-manufactured AVK-1000 automatic vacuum mass comparator is intended for national metrological institutes that transport and maintain the national reference mass standard of 1 kg. The... More ››
Maximum capacity [Max]: 1002g
Readability [d]: 0.1µg

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Overview
RADWAG-manufactured AVK-1000 automatic vacuum mass comparator is intended for national metrological institutes that transport and maintain the national reference mass standard of 1 kg.

The comparator is intended for weighing mass standards and silicone spheres of 100 mm diameter. It enables comparison of up to 6 prototypes of max 1kg mass. The repeatability of the process is of 0.3 µg and readability of d = 0.1 µg.

A specially designed vacuum chamber enables carrying out measurements in a vacuum of 10-6 mbar capacity or in atmosphere containing noble gases.

AVK-1000 is equipped with suspended weighing pan that eliminates eccentricity errors.

Standard version of the mass comparator features thermo-hygro-barometer for testing ambient conditions with great accuracy: pressure of 0.001hPa, humidity of 0.01% and temperature of 0.001 °C.
The comparator is also equipped with high quality vacuum gauge.

The AVK-1000 vacuum mass comparator can be equipped with the LOAD LOCK system for carrying mass standards. The system enables switching or adding artefacts without changing the atmosphere inside the main chamber. With the use of a special chamber for mass standards switching the whole process is 90% shorter.
During mass standards replacement carried out without the use of the LOAD LOCK system, the air enters the main chamber of the mass comparator. After each opening of the chamber it is necessary to pump the air out in order to obtain required vacuum value. The vacuum mass comparator needs approx. 48 hours in order to obtain vacuum that ensures measurement repeatability.

The LOAD LOCK is equipped with a high-efficiency pump system, the time of pumping the air out in order to enable opening of the valve of the main chamber is significantly shortened. The stabilization of the main chamber after replacing/adding the mass standard and closing the valve connecting the main chamber and the LOAD LOCK system takes 5 hours.

The high-quality vacuum gauges enable monitoring and comparing the vacuum value in order to determine the moment when opening the valve again and replacing the mass standard is available. A specially designed viewfinder enables monitoring of the process.

The LOAD LOCK enables switching objects of dimensions adapted to the AVK-1000 mass comparator: cylindrical mass standards of 22-95 mm diameter and silicone spheres of 40-100 mm diameter.

Supplementing the AVK-1000 vacuum mass comparator with LOAD LOCK system significantly improves the comparison performance.
Datasheet
E1

100 g — 1 kg

 

E2

100 g — 1 kg

 

F1

100 g — 1 kg

 

F2

100 g — 1 kg

 

Maximum capacity [Max]

1002

 g

Readability [d]

0.1

 µg

Standard repeatability [5% Max]

0.4

 µg

Standard repeatability [Max]

0.5

 µg

Permissible repeatability

1

 µg

Electric compensation range

-1 g — +2 g

 

Stabilization time

60

 s

Adjustment

external

 

Supplementary weights external

500 g, 800 g, 900 g

 

Magazine positions

6

 

Weighing pan dimensions

ø100

 mm

Vacuum chamber dimensions

965×745×1150

 mm

Pressure range

10(⁻⁶) mbar

 

Object diameters

cylindryczne ø (22-95)x110; kuliste ø (40-100)

 mm

Weighing device dimensions

965×745×1700

 mm

Controling device dimensions

206×140×70

 mm

Net weight (without table)

250

 kg

Net weight (with table)

650

 kg

Power supply

100 — 240 V AC 50 / 60 Hz

 

Operating temperature

+15 — +30

 °C

Operating temperature change rate

±0.1°C/12h

 

Relative humidity

45% — 60%

 

Repeatability in a vacuum under model ambient conditions for 6 ABBA cycles

Videos
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AVK-1000 Automatic Vacuum Mass Comparator
Documentation
Datasheet
Data Sheet

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Radwag Balances and Scales
Torunska 5
26-600 Radom
Poland
tel.: +48 48 386 60 00
e-mail: export@radwag.com
TIN: PL7960000327
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