AKM-2/50 Automatic Mass Comparators

AKM-2/50 Automatic Mass Comparators
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Product code: WL-411-0006
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Maximum capacity [Max]: 51kg
Readability [d]: 1mg

Mass comparator AKM-2/50 series featuring automatic


loader enables automatic determination of mass deviations of a single


in a single cycle. AKM-2/50 is designed to compare weights from 20 kg to 50 kg for weights classes E1 and compare weights from 10 kg to 50 kg for weights classes E2 and lower. 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:
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


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 20 kg ÷ 50 kg 
E2 10 kg ÷ 50 kg 
F1 10 kg ÷ 50 kg 
F2 10 kg ÷ 50 kg 
Maximum capacity [Max] 51 kg
Readability [d] 1 mg
Repeatability (5% Max) 2 mg (5 kg) 
Repeatability (Max) 2 mg (50 kg) 
Stabilization time 30 s
Weighing pan dimensions ø100 mm
Power supply 110 ÷ 230 V AC / 50 ÷ 60 Hz / 13.5 ÷ 16 V DC 
Packaging dimensions 1150×800×1320 mm
Atmospheric humidity 40% ÷ 60% 
Electric compensation range - 1000 ÷ + 1000 g
Adjustment external 
Atmospheric humidity change rate ± 2 % / 12 h 
Weighing device dimensions 1050×650×1150 mm
Controling device dimensions 206×140×70  mm
Net weight/gross weight (comparator) 60 kg / 94 kg 
Net weight/gross weight (automat) 260 kg / 380 kg 
Supplementary weights internal half automatic 
Supplementary weights external
Operating temperature +10 ÷ +30 °C
Working temperature change rate ± 0.5 °C / 12 h (± 0.3 °C / 4 h) 
Eccentricity (tested load) 0 mg
Repeatability 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.


Technical Documentation

User Manual
(2.14 MB) EN

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User Manual
(4.37 MB) EN

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Data Sheet
(0.81 MB) EN

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Conformity Declaration
(0.04 MB) EN

See the publication
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26-600 Radom
tel.: +48 48 386 63 03
e-mail: export@radwag.com
TIN: PL7960000327
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