12BTECHNICAL DATA
Max. distance between LC and Ex interface in
Ex area
150/500 m for gas group IIC
500 m* for gas group IIB
(see device manual SIWAREX IS)
Load cell powering:
Voltage regulated
Maximum current
6 V DC
150 mA
Permissible load cell resistance without Ex-i-
interface (per channel)
Input resistance > 40 Ω
Output resistance < 4010 Ω
Permissible load cell resistance with Ex-i-interface
(per channel)
Input resistance > 87 Ω
Output resistance < 4010 Ω
Monitoring of the sensor inputs (typical) ≥ 5.3 V
Hysteresis 0.1 V
Max. permissible input voltage at the signal and
sensor inputs
15 V
Response time sense line monitor ≤ 1 s
Common mode suppression CMRR @50 Hz > 80 dB
Low-pass filter cutoff frequency 0.05...5 Hz
Measured value filtering for mean value filter 30 values (20 ms)
Potential isolation
500 V (DC)
*Possible up to 1000 m under certain conditions, when using the recommended cable
(accessories)
Table 13-3 Data: Load cell activation
13.4 RS 232C port
Baud rate 9600 baud
Data bits 8
Parity even
Stop bits 1
Max. distance 15 m
Signal level in accordance with EIA-RS232C
Potential isolation
500 V (DC)
Table 13-4 Data: RS 232C port
13.5 TTY port
Operating mode
Passive and unidirectional, i.e.
transmitter only (TxD)
Baud rate
9600 baud
Data bits 8
Parity even
Stop bits 1
Max. line length (@ 20 mA) 125 m
Potential isolation
500 V (DC)
Transmitter voltage drop < 2 V
Max. loop current 25 mA
Table 13-5 Data: TTY port
SIWAREX U 13-73
To Next Page
Loading...
