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Function, Self-diagnostics, Cf8-w-disp-gh – ROTRONIC CF8-W-Disp-GH User Manual

Page 4: Functional test of

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Dokument
UMA 146

Rev
1

Page
4 (7)

Jumper

Position


Function

Start point

selection

jumper

0%

20%


Jumper top position provides 0Vdc or 0mA start point for OUT1, OUT2
(0-20mA or 0-10V).

Jumper bottom position provides 2Vdc or 4mA start point for OUT1, OUT2
(4-20mA or 2-10V).

Communi-

cation

selection

jumper

MB

SA


Jumper top position provides Modbus communication protocol

Jumper bottom position provides SenseAir communication protocol


Out(1)

Current

Voltage


Connection in position “Current” provides 0/4-20mA output range for OUT1.

Connection in position “Voltage” provides 0/2-10VDC output range for OUT1.


Out(2)

Current

Voltage


Connection in position “Current” provides 0/4-20mA output range for OUT2.

Connection in position “Voltage” provides 0/2-10VDC output range for OUT2.

Table II. Configuration jumpers for

CF8-W-Disp-GH

FUNCTIONAL TEST of

CF8-W-Disp-GH

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.