Scaime eNod3-C, Инструкция пользователя

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e Nod3- C
Digital Transmitter
e Nod3- C :
User’s instructions
NU-eNod3C-E-0911_165702-I
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1.2 General characteristics:
Power supply Unit
power supply voltage 10 ..... 28 V
DC
max consumption
70 with 350 Ω load cell
120 with 80 Ω load cell
mA
Temperature range
storage temperature -25...+85 °C
operating temperature -10...+40 °C
Load cell
impedance (complete bridge)
>
80 Ω
connection 4 or 6 wires
load cell power supply 5 ± 5% V
DC
Communication
RS232
RS 485/422 Half or full-duplex
RS baud rate 9600 ... 115200 bauds
Can 2.0A 20....1000 kbauds
Logical inputs
number 2
type optocoupler
low-level voltage 0 ..... 3 V
DC
high-level voltage 9 .... 28 V
DC
current at high level 10mA @ 24V mA
insulation voltage 2500 V
rms
Logical outputs
number 2
type opto-insulated static relays
max current @ 40°C 0.4 A
max voltage in open state 55 V
resistance in ON state 2 Ω
insulation voltage 2500 V
rms
Metrological characteristics
analog input signal range 7.8 ... 500 mV/V
typical temperature offset drift @ input
signal range <7,8 mV/V
1.5 ppm/°C
typical slope temperature effect 2 ppm/°C
max linearity error 0.003 %
A/D conversion rate 1920 .... 6.25 meas./s
Legal for use metrological characteristics
Class III or IIII
Maximum number of verification scale
divisions
6000 for class III
1000 for class IIII
Minimum voltage division per verification
scale division ( ∆ U
min
)
0.5 µV
Maximum voltage for weighing range 39 mV
Minimum impedance for the load-cell 80 Ω
Maximum impedance for the load-cell 1500 Ω
Value of factor P
i
0.5