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Technical Data
11.4 Load Cell Connection
P
11.5 RS 232C Interface
11-58 SIWAREX MS
connection
Error limit conforming to DIN1319-1 from
measurement range end value at 20 °C + 10 K
Temperature coefficient span
Temperature coefficient zero point
Linearity error
Refresh rate can be switched
Internal resolution
3 measuring ranges
Max. distance to load cell
Max. distance between load cell and Ex-I interface
in Ex area
Load cell power
Voltage
Maximum current
Permitted load cell resistance without Ex-I interface
with feed from SIWAREX MS
Permitted load cell resistance with Ex-i-Interface
Monitor for sensor inputs
Response time for sensor line monitor
Common mode rejection CMRR @50/60 Hz
Low pass filter limit frequency
Measured value filtering for average value filter
Isolation
* Values apply at output of the module
P
**When using recommended cables (accessories)
Table 11-4
Data: Load cell connection
Baud rate
Data bits
Parity
Stop bits
Max. distance
Signal level
Isolation
Table 11-5
Data: RS 232C interface
STRAIN GAUGE full bridge in 4-
wire or 6-wire technology
≤ 0.05 %
≤ ± 20 ppm/K v. E
≤ ± 0.1 µV/K
≤ 0,015%
50 Hz or 30 Hz
65,535 parts
0 to 1 mV/V
0 to 2 mV/V
0 to 4 mV/V
500 m
150/500 m for gas group IIC
500 m for gas group IIB (see
SIWAREX IS device manual)
Typical DC 6 V *
150 mA
> 40 Ω
< 4010 Ω
> 87 Ω
< 4010 Ω
typically ≥ 5.3 V ± 2%
Hysteresis 0.1 V
≤ 1 s
Typical 80 dB
0.05...5 Hz
2...255 values
500 V (DC)
9600 baud
8
Even
1
15 m
Conforms to EIA-RS232C
500 V (DC)
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