Mass ComparatorMass comparatorsallows comparison of mass standards in accordance with OIML R111, from 1 mg to 50 kg in class E1, and up to 2000 kg in class F2.
An important stage of the comparison is determining magnetism of mass standards. This enables to unequivocally determine whether mass measurement is burdened with an error connected with mass standard magnetic characteristics or results from damage of a measuring device. The OIML R111 indicates susceptometers as a reference method for determination of magnetic susceptibility and polarisation of mass standards.
Automatic Mass Comparators
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|Stabilization Time||30 s|
|Power Supply||110 / 230 V AC - 50 / 60 Hz - 13,5 / 16 V DC|
|Maximum Capacity||Max 10.2 kg|
|Weighing Pan Dimensions||90 mm|
|Repeatability At Low Load||0.2 mg (500 g)|
|Repeatability At Nominal Load||0.2 mg (10 kg)|
|Operating Temperature||+10 / +30 Degree C|
|Packaging Dimensions||1050 x 800 x 1320 mm|
|Atmospheric Humidity||40% / 60%|
|Electric Compensation Range||- 100 / + 200 g|
|Working Temperature Change Rate||+-0.5 Degree C / 12 h (+-0.3 Degree C / 4 h)|
|Atmospheric Humidity Change Rate||+-2 % / 12 h|
|Weighing Device Dimensions||950 x 650 x 1150|
|Controling Device Dimensions||206 x 140 x 70 mm|
|Gross Weight||59 kg (comparator), 350 kg (automat)|
|Net Weight||30 kg (comparator), 230 kg (automat)|
|Supplementary Weights Internal||Half Automatic|
- Mass comparator AKM-2/10 series featuring automatic mass loader enables automatic determination of mass deviations of a single weight in a single cycle. The system of automatic mass comparator is commonly applicable in mass measuring laboratories, and particularly in certification units for weights classes E and F
Design and functionality:
- Is expressed as a standard deviation determined for 6 ABBA cycles. Standard deviation is experimentally determined under ambient conditions for calibration of E1 class mass standards specified in OIML R111 (Table C.1.) document
- The supervising part of a mass comparator is a digital module which cooperates with a controller of instrument’s mechanical components. The automatic mass loader features a basis with self-centring fields, a robot and a steel body. The digital module and the robot are located in mass comparator’s weighing chamber. The loading robot is controlled by the computer’s controller. The instrument is operated by means of digital display which is plugged to mass comparator’s controller.
- Lengthwise shift of the loading robot with weights is carried out automatically using solenoid actuators. Additional software functions enable loading and taking off the weights, data processing and storing, and data export to instrument’s memory.
|E1||2 kg ÷ 10 kg|
|E2||500 g ÷ 10 kg|
|F1||500 g ÷ 10 kg|
|F2||500 g ÷ 10 kg|
|Eccentricity (tested load)||0 mg|