The newest line of Radwag Mass Comparators enables adjusting mass standards and weights according to the OIML recommendations (R-111) from 1 mg to 5 kg for E1 class and lower.
Mass comparators are used both for ensuring traceability of mass measurements, and verification of weights in accordance with the principles of legal metrology. RADWAG Mass Comparators have gained recognition among Accredited Calibration Laboratories in many countries.
Mass comparator WAY 4Y.KO series similarly to other models, comprises two components. One of them holds the electronic module, and the other precise mechanical measuring system.
The WAY 4Y.KO series comes standard with an aesthetic, large weighing chamber with glass anti-draft shield. All elements of the weighing chamber are manufactured from glass or metal to minimize the influence of electrostatic charges on weighing result. Mass comparator WAY 4Y.KO series features an intuitive menu supporting a user while operating the instrument.
1 kg ÷ 2 kg
500 g ÷ 2 kg
100 g ÷ 2 kg
10 g ÷ 2 kg
1 g ÷ 1 kg
1 kg ÷ 1 kg
|Maximum capacity [Max]
|Repeatability (5% Max)
0.1 mg (1 g)
0.1 mg (2 kg)
|Eccentricity (tested load)
1d / 1
|Electric compensation range
-50 g ÷ +300 g
|Supplementary weights internal
|Supplementary weights external
2× 100 g
100 ÷ 240 V AC 50 / 60 Hz
+15 ÷ +30
|Working temperature change rate
40% ÷ 60%
|Atmospheric humidity change rate
|Weighing pan dimensions
|Weighing device dimensions
|Controling device dimensions
|Anti-draft chamber dimensions
|Chamber packaging size
is expressed as a standard deviation determined for 6 ABBA cycles. Standard deviation is experimentally determined under ambient conditions for calibration of F2 class mass standards specified in OIML R111 (Table C.1.) document.
RMCS - Radwag Mass Comparator System
RADWAG Mass comparators
Publications and teaching materials
THBR System 2.0
Detection of vibrations at the electronic balances workstation
Automatic Comparison of Weights and Mass Standards 2017
Guidelines for a weighing room for correct microbalance and mass comparator operation