ROTRONIC CF8-W-Disp-CO - Manual (Page 4)

Dokument
IMA 208 Rev
1 Page
4 (4)
DI1
~
+
Fig. 3.Terminals and jumpers on CF8-W-Disp-CO . The darker positions are default settings.
Numbers in figure 3 Label or marking Function
3 Out(1) CO-transmitter 0-100 ppm CO
4 Out(2) CO
2
-transmitter 0-2000 ppm CO
2
6, 7 Out(3)
Gas alarm CO >35 ppm or CO
2
>1500 ppm
8 Out(4) Error detected or gas alarm
9, 10 DI 1 Extra terminal. Alarm test function (N.O.)
If more holes are needed the box has several drill markings for holes in two
dimensions, PG7 and PG9. Then fasten the cable entry bushing and seal properly.
Never feed more than one cable through each cable entry bushing, or else gas might
leak through!
The PCB can be removed during the making of holes. The PCB must be handled
carefully and protected from electrostatic discharge!
Start-up of the CF8-W-Disp-CO
Connect the power directly after mounting. The unit works best if the sensor is
continuously powered. The analogue outputs do not need to be connected before
use. An internal delay function prevents the alarm functions of the relay and OUT4
output during 2 minutes after power up. After short power failures the CO
measurements need this power up time to stabilize. The alarm outputs may be tested
after the 2 minutes delay by shorting the switch DI1. After long power failures the
sensor may need several days to restore the measuring functions.
NOTE! The CO probe gives incorrect readings near some chemicals, e
g silicone. This makes certain environments unsuitable for the sensor.
DI1 Switch
for alarm
test
Jumper for
configuring the
linear output
start point to
0% or 20%
start point Jumper to
choose
communi-
cation
protocol
Jumpers to
choose between
voltage or
current outputs
Jumper to choose
between open
collector or 0-10V
linear
signal