Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER Manual de usuario descargar pdf (Pagina 96)

100

Section 12: Specifications

05/11 97 51209 Revision 2

12.4 Weighing Electronics

The weighing electronics are suitable for connection of strain-gauge load cells.

12.4.1 Load Cells

Load cell type Strain gauge, 6 or 4-wire connection possible

Supply voltage U= 12V DC

for I

max

= 160 mA

for up to 8 load cells of 650  each

or 4 load cells of 350 each

Sense voltage monitoring Sense voltage below + 4VDC -- -4VDC is detected; can be switched

off

Max. load > 75 

Cable length Max. 500 m

12.4.2 Principle

Principle DC voltage, delta-sigma converter, ratiometric to the load cell supply

voltage

Conversion / measurement

time

5, 10, 20, 40, 80, 160, 320, 640, 960, 1200, 1600 ms

Digital filter Selectable, active 4th order (low-pass),

Characteristic: Bessel, aperiodic, Butterworth, Tschebyscheff

Configurable cut-off frequency

12.4.3 Accuracy and Stability

Accuracy class < 10000 e (Cl. III) acc. to OIML R76 / EN 45501

Min. measuring signal (OIML)

0.5µV/e, i.e. 3 mV for 6000 e, 5 mV for 10000 e

Linearity error: < 0.002 %

Zero stability error (TK

) < 0.02 µV/K RTI <= 0.004%/10K at 1mV/V

Span stability error (TK

Spn

) < +/- 2 ppm/K

12.4.4 Sensitivity

Sensitivity 0.5 µV/e @ 10000e (Cl. III) OIML R76,

Resolution 7.5 million counts at 3mV/V, not legal for trade

Input voltage (input signal + dead

load)

0 ... max. 36 mV DC, symmetrical to 0

Dead load range 36 mV DC (max. input signal); input/ calibration via software

1 2 ... 91 92 93 94 95 96 97 98 99 100

Comentarios a estos manuales

Sin comentarios

Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER Manual de usuario Pagina 96

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER