PR 5610 Installation Manual Technical Data
Sartorius 147
6 TECHNICAL DATA
The characteristical data are valid after a min. warm-up time of 60 minutes (reference temperature 23° C). Values
specified without tolerances are average values and are only used for information.
6.1 Analog part, A/D conversion
Principle DC. voltage, integrating A/D converter,
ratiometric to the load cell supply voltage
Conversion time 50 ms
Measuring time 50 ms, 100 ms and multiples up to 2 s
Analog filter active Butterworth low-pass
40 dB/ decade, limiting frequency 2 Hz
Digital filter active 4
th
order (low-pass) Bessel or aperiod. or Butterworth or Tschebyscheff
filter, limiting frequency adjustable within 0.1 Hz and 5 Hz
6.1.1 Accuracy and stability
Accuracy class < 5000 e according to OIML R76 / EN 45501 ,
(EC-type approval D99-09-039) class III
Min. meas. signal (OIML)
Min meas. signal (NSC)
0.3 mV/V or >
3.6 mV for 3000 e, 0.5 mV/V or > 6 mV for 5000 e
0.25 mV/V or >
3.0 mV for 3000 e, 0.417 mV/V or > 5 mV for 5000 e
Linearity error < 0.007 %
Zero stability error TK
0
< 0.1 µV/K RTI
SPAN stability error TK
Spn
< +/- 6 ppm/K
6.1.2 Sensitivity
Sensitivity
(at 4 cnt/d)
(at 1 cnt/d)
1.2 µV/e for 5000 e OIML , 1.0 µV/e for 5000 e NSC
1.0 µV/e for 3000 e OIML, for 5000e NSC multi range scale
0.42 µV/d, not 'legal for trade'
0.11 µV/d, not 'legal for trade', internal sensitivity
Resolution internal >330,000 steps with 36 mV
Min. meas. Signal >0.03 mV/V for 3000 steps internal, not 'legal for trade'
Input voltage (meas.-signal + deadload) 0 ... max. 36 mV =
Deadload range 36 mV - (max. meas. signal); entry/ calibration via software
6.1.3 Load cells
Load cell connection all strain gauge cells, 6 or 4-wire connection possible.
Load cell supply
U=
± 6 V for I
max
= 160 mA
Load cell supply circuit
12V DC for max. 8 load cells each with 650
Ω
for 4 load cells each with 350
Ω
Max. load
>
75 Ω
6.1.4 Safe condition
The software is monitored by a watchdog timer. In case of error, reset occurs, whereby all digital and analog
outputs are reset to a defined condition. The load cell input is checked, if the error leads to a measurement
value which does not make sense. No failure checking of digital inputs and outputs or of analog output is made.
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