The newest line of Radwag Mass Comparators enables adjusting mass standards and weights according to the OIML recommendations (R-111) for F2 class and lower.
The comparators are used both for ensuring traceability of mass measurements, and verification of weights in accordance with legal metrology. RADWAG Mass Comparators have gained recognition among Accredited Calibration Laboratories, in many countries.
HRP 4Y.KO series comparators comprise two components, professional weighing platform (a new mechanical design of electromagnetic mechanism housed within a tight steel casing) and PUE 7.1 terminal.
The weighing platform made of steel features centring rings enabling precise positioning of the weights. The comparator features intuitive and user friendly menu.
200 kg ÷ 500 kg
100 kg ÷ 500 kg
50 kg ÷ 500 kg
|Maximum capacity [Max]
3 g (500 kg)
1.6 g (500 kg)
|Repeatability low load
0.6 g (50 kg)
1 g (500 kg)
|Eccentricity (tested load)
2d / 1
|Electric compensation range
0 ÷ 510 kg
|Recommended load speed
|Maximum permissible load speed
100 ÷ 240 V AC 50 / 60 Hz
+15 ÷ +30
|Working temperature change rate
40% ÷ 60%
|Atmospheric humidity change rate
|Weighing pan dimensions
|Self-centering weighing pan dimensions
|Weighing unit dimensions without self-centering weighing pan
|Weighing unit dimensions with self-centering weighing pan
|Controling device dimensions
|Comparators packaging size without self-centering weighing pan
|Comparators packaging size with self-centering weighing pan
Repeatability 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
HRP KO manual mass comparator
Publications and teaching materials
THBR System 2.0
Detection of vibrations at the electronic balances workstation
Automatic Comparison of Weights and Mass Standards 2017
PUE HX7 Terminal
Guidelines for a weighing room for correct microbalance and mass comparator operation