Vacuum Mass Comparator
Utmost Accuracy with Assured Traceability
The M_one and M_10 vacuum mass comparators are automated weighing system consisting of a 1 kg/10 kg capacity, 0.1 μg /1 μg readability mass comparator and an automated weight handler contained within a vacuum chamber. The system delivers the best possible mass measurements under controlled environmental conditions from ambient pressure down to a vacuum of 10-6 mbar.
![Vacuum Mass Comparator Vacuum Mass Comparator](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-1.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
![Vacuum Mass Comparator Vacuum Mass Comparator](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-1.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Advantages of Vacuum Mass Comparator
![Weight Measurements with the Lowest Possible Uncertainty Weight Measurements with the Lowest Possible Uncertainty](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/02_Feature_Image/vacuum-advantages-0.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Weight Measurements with the Lowest Possible Uncertainty
Vacuum mass comparators achieve the highest level of accuracy by performing mass determination at constant pressure or in a vacuum. Our M_one and M_10 vacuum comparators accommodate various shaped artefacts and deliver accurate results within 100 nanograms.
![The Reference in Mass Determination The Reference in Mass Determination](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-2.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
The Reference in Mass Determination
METTLER TOLEDO’s M_one vacuum mass comparator sets the benchmark in ultra-high precision weighing. Masses can be determined with an accuracy of 100 nanograms, a proven typical repeatability of 300 nanograms and a result data comparison of 10 nanograms.
![Storage Device Ensures Stability Storage Device Ensures Stability](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-4.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Storage Device Ensures Stability
The unique Artefact Storage and Transport Vessel (ASTV) keeps objects in the stable conditions of a vacuum or inert gas while also preventing them from being contaminated.
![Contamination-Free Artefact Transfer Contamination-Free Artefact Transfer](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-3.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Contamination-Free Artefact Transfer
To maintain the controlled environment inside the M_one, artefacts are transferred directly from their ASTV to the weighing chamber via the Load Lock, which incorporates an Artefact Transfer Device (ATD).
![Accommodates Different Shaped Artefacts Accommodates Different Shaped Artefacts](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/advantage-vacuum-01.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Accommodates Different Shaped Artefacts
Thanks to the unique STAR-shaped weighing pan, the M_one accommodates multiple weights and artefacts from 1 mg up to 1 kg. Silicon spheres up to 100 mm in diameter and density artefacts can be placed directly on the weighing pan.
![Direct Access for Easy Loading Direct Access for Easy Loading](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-6.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Direct Access for Easy Loading
The large quick-loading door provides direct access to the weight handler inside the weighing chamber for fast and ergonomic loading of weights and artefacts.
![Modular Design Modular Design](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-7.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Modular Design
The M_one, Load Lock, Artefact Transfer Device, and the vacuum pumping systems have been built on a modular basis. This gives you the flexibility to configure your own initial system and expand it according to the demands of your applications and as budget permits.
![Automated Gravimetric Centering (AGC) of Weights Automated Gravimetric Centering (AGC) of Weights](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-5.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Automated Gravimetric Centering (AGC) of Weights
The AGC positions all types of artefacts precisely in their gravimetric center before the measurement is taken. This reduces eccentricity error to a minimum and ensures the highest possible measurement repeatability.
![M_Control Software and Optional Efficiency Pack M_Control Software and Optional Efficiency Pack](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/advantage-vacuum-9.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
M_Control Software and Optional Efficiency Pack
The M_Control software gives you complete control over your vacuum mass calibration processes. With the optional Efficiency Pack, post-processing of air buoyancy provides an increased level of measurement accuracy.
Products and Specifications
M_one Comparator | M_10 Comparator | |
Article No. | On Request | On Request |
OIML Calibration Range E0 | 100 g - 1 kg* | 1 kg - 10 kg |
OIML Calibration Range E1 | 100 g - 1 kg* | 1 kg - 10 kg |
OIML Calibration Range E2 | 100 g - 1 kg* | 1 kg - 10 kg |
OIML Calibration Range F1 | 100 g - 1 kg* | 1 kg - 10 kg |
OIML Calibration Range F2 | 100 g - 1 kg* | 1 kg - 10 kg |
Maximum load | 1001.5 g | 10011 g |
Readability | 0.1 μg | 1.0 μg |
Repeatability at nominal load (5x ABA, measured at) | 0.5 μg | 8.0 μg |
Repeatability typical ABA | 0.3 μg | 4.0 μg |
Electrical weighing range | 1.5 g | 11 g |
Dial weights | External | External |
Linearity (electrical weighing range) | 2 μg | ±8 μg |
Eccentric load deviation (at test load) | 0.0 ng (1 g) | 0.0 ng (10 g) |
Settling time | 30 s | 30 s |
Adjustment built-in | Motorized | Motorized |
Adjustment with external weight | 1 g | 10 g |
*Enhance calibration range down to 1 mg by utilizing support weights | ||
Standard Equipment | ||
Weight handler | Turntable, 6 positions | Turntable, 4 positions |
Software and controller | Windows®, standard | Windows®, standard |
Vacuum chamber | Round bell jar | Round bell jar |
Self centering pan | Integrated | Integrated |
Weighing pan | Hanging pan | Hanging pan |
SmartScreen | Touchscreen | Touchscreen |
SmartSens | Standard | Standard |
Separate display | Standard | Standard |
Admissible Ambient Conditions | ||
Temperature (°C) | 17 - 27 | 17 - 27 |
Max. temperature change (°C /12h) | 0.1 | 0.1 |
Relative humidity (%) | 45 - 60 | 45 - 60 |
Comparator (WxDxH, mm) | 344 x 440 x 620 | 315 x 720 x 850 |
Display unit (WxDxH, mm) | 226 x 370 x 155 | 226 x 370 x 155 |
Comparator weight (kg) | 300 | 350 |
Object diameter (D, mm) | Cylindrical: 22 - 90 Spherical: 40 - 100 | Cylindrical: 18 - 105 Spherical: 18 - 110 |
Object height (H, mm) | 100 | 195 |
Control unit for weight handler (WxDxH, mm) | 202 x 197 x 92 | 202 x 197 x 92 |
Vacuum chamber (WxDxH, mm) | 684 x 884 x 930 | 684 x 884 x 930 |
Rack for control & display unit | Optional | Optional |
Vacuum Comparators and Mass Metrology
FAQ
What is a vacuum mass comparator?
![vacuum mass comparator vacuum mass comparator](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-6.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
![vacuum mass comparator vacuum mass comparator](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-6.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
A vacuum mass comparator is the most accurate balance possible. It weights the mass of an artefact in a vacuum, which means that no air buoyancy correction is needed. Without this correction, a relevant part of the uncertainty calculation can be removed, which means that the overall uncertainty is improved.
![Worldwide Comparison of Reference Weights Worldwide Comparison of Reference Weights](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-5.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
![Worldwide Comparison of Reference Weights Worldwide Comparison of Reference Weights](/dam/P5/labtec/08_Mass_Comparators/06_Vacuum/04_Advantages/vacuum-advantages-5.jpg/_jcr_content/renditions/cq5dam.web.1280.1280.jpeg)
Worldwide Comparison of Reference Weights
To enable national metrology institutes worldwide to compare their standards using the M_one and the M_10, the optional Klimet A30V measures all environmental parameters with the utmost accuracy to determine air density for compensation of air buoyancy influences.