17.5.2 Principle
Principle DC voltage, delta-sigma converter, ratiometric to the
load cell supply voltage
Conversion/measuring
time
5, 10, 20, 40, 80, 160, 320, 640, 960, 1200, 1600 ms
Digital lter Can be activated, active 4th order (low pass)
Characteristic: Bessel, aperiodic, Butterworth, Tscheby-
sche
Limit frequency congurable
17.5.3 Accuracy and stability
Accuracy* 0.5 µV/e corr. to 3 mV for 6000 e
0.5 µV/e corr. to 5 mV for 10,000 e
Class III, according to OIML R76/EN45501
Min. measuring signal
(OIML)*
6,000 e: ≥0.25 mV/V
10,000 e: ≥0.42 mV/V
Linearity* <0.002 %
Zero standstill error (TK
0
)* <0.02 µV/K RTI; ≤0.004 %/10K at 1 mV/V
SPAN stability error (Tk
span
)* < ±2 ppm/K
* with a measurement time of 160 ms.
17.5.4 Sensitivity
Sensitivity 0.5 µV/e @ 10,000 e (Cl. III) OIML R76
Max. resolution 7.5 million internal counts at 3 mV/V, not legal-for-trade
Measuring input (measu-
ring signal + dead load)
0max. 36 mV DC, symmetrical to zero
Dead load suppression Max. measuring signal of 36 mV DC (dead load + range);
input/calibration via software
17.5.5 Connecting cables
Length of the connecting cable between junction box and instrument
Cable type PR 6135, PR 6135A Max. 500 m – length of the load cell cable
Length of the connecting cable between weighing platform and instrument
Cable type LiYCY max. 500 m
Transmitter Series PR 5220 17 Specications
Minebea Intec EN-228
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