BA 4510
1.4.4.5 Pin assignment
Serial port
RS232
Transfer rate
max. 19200 baud, adjustable
Stopbits
1
Data bits
8
Parity
none
Handshake
without
Serial interface protocol (CR= carriage return)
Input
Response
Parameter
M2CR
M2x.xxExxCR
Oxygen concentration in ppm
A1CR
A1xxxCR
Cell voltage in mV
A2CR
A2xxxCR
Measuring temperature in °C
Error messages:
0
ERROR0
Transmission error
1
ERROR1
Warm up
2
ERROR2
Cell temperature too low
3
ERROR3
Thermocouple defect
4
5
6
ERROR6
System error
Analog output
Output
4 - 20 mA
Output
potential-free
Pin 1,2 measurement signal output 4-20 mA
Pin 3,4 potential-free connections for limit relays:
Note:
If the limit is breached, the limit relay opens and triggers a
general alarm.
7
Bühler Technologies GmbH
BE550013 ◦ 09/2018
