ROTRONIC CF5 - Manual (Page 3)

Dokument
Rev
Page
3 (7)
Jumper Position
Function
Start
point
selection
jumper
0%
20%
Jumper top position provides 0Vdc or 0mA start point for Out(1), Out(2)
(0-20mA or 0-10V).
Jumper bottom position provides 2Vdc or 4mA start point for Out(1), Out(2) (4-
20mA or 2-10V).
NOTE! The start point jumper is missing on some models!
Out(1)
Current
Voltage
Connection in position “Current” provides 0/4-20mA output range for Out(1).
Current output is not recommended for temperature measurements
Connection in position “Voltage” provides 0/2-10VDC output range for Out(1).
Please note! Temperature measurements accuracy is valid only for units
configured in voltage outputs mode.
Out(2)
Current
Voltage
Connection in position “Current” provides 0/4-20mA output range for Out(2).
Current output is not recommended for temperature measurements
Connection in position “Voltage” provides 0/2-10VDC output range for Out(2).
Please note! Temperature measurements accuracy is valid only for units
configured in voltage outputs mode.
Table II. Configuration jumpers for CF5
Self-diagnostics
The system contains complete self-diagnostic procedures. A full system test is
executed automatically every time the power is turned on. In addition, constantly
during operation, the sensor probes are checked against failure by checking the valid
dynamic measurement ranges. All EEPROM updates, initiated by the sensor itself, as
well as by external connections, are checked by subsequent memory read back and
data comparisons. These different system checks return error bytes to the system
RAM. The error codes are available by connecting a PC with a special RS232 cable
connected to the UART port slide connector. The error codes are shown in the
software UIP (version 4.3 or later). Warm up and Out of Range are the only bits that
are reset automatically after return to normal state. All other error bits have to be
reset manually after return to normal by power off/on.
The yellow LED flashes if an error has been detected. If a fatal error has been
detected the yellow LED is lit.