Manual

Dokument
UMA 145
Rev
3
Page
4 (8)
Jumper Positio
n
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).
Communi
-cation
selection
jumper
MB
SA
Jumper at top position provides Modbus communication protocol
Jumper at bottom position SenseAir communication protocol
Out(1)
Current
Voltage
Connection in position “Current” provides 0/4-20mA output range for
Out(1).
Connection in position “Voltage” provides 0/2-10VDC output range for
Out(1).
Out(2)
Current
Voltage
Connection in position “Current” provides 0/4-20mA output range for
Out(2).
Connection in position “Voltage” provides 0/2-10VDC output range for
Out(2).
Table II. Configuration jumpers for CF8-W-Disp-AL
FUNCTIONAL TEST of CO
2
Sensor CF8-W-Disp-AL
The unit has three LED’s – one yellow and two red – to indicate the status of the
controller.
Yellow LED - ”Call for maintenance” is lit, if an error flag is set or the measurement is
out of range. This information is also shown on the display by the wrench icon.
Left red LED - ”the relay1 is actuated” is lit, when Out(3) (relay1) is actuated (closed).
Right red LED - ”the relay2 is actuated” is lit, when Out(4) (relay2) is actuated
(closed).
A simple and visual functional test can easily be performed. Take a breath and blow
the air from a distance of a few centimetres on the sensor. The sensor will detect a
rapid increase in the carbon dioxide concentration. The red LEDs are lit when the
CO
2
concentration passes the pre-set values.
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