Document
IMA0123
Rev
4
Page
3 (4)
Electrical connections
The power supply
has to be connected
to
+~
and
.
is considered as system
ground.
The same ground reference has to be used for
the eSENSE unit and for the
DDC/signal receiver.
PLEASE NOTE! The same ground reference has to be
used for the
eSENSE
unit and for the control system!
Terminal
Function
Electrical data
Remarks
+~
Power (+)
Power ground
(-)
24 VAC/DC+ (+-
20%), 2W
24 VAC/DC-
System voltage reference
OUT1
OUT2
Analogue
output 1 (+)
Silences the
acoustic alarm
0-10 VDC
0-2000 ppm
CO
2
A push on the push button
silences the acoustic alarm for 30
minutes.
Table I. Connections of the main terminal of eSENSE
LED Colour
Electrical data
Remarks
Green
0VDC
10VDC
Lit between 0-800 ppm CO
2
Yellow
0VDC
10VDC
Lit between 800-1400 ppm CO
2
Red
0VDC
10VDC
Lit above 1400 ppm CO
2
. Buzzer sounds.
Table II. The LEDs
Self-diagnostics
The system contains complete self-diagnostic procedures that are executed
automatically when the sensor is in operation. Sensors with display show a
wrench
if
an error is found. The wrench is shown during the first seconds after power up and if
the measuring range is exceeded.
Maintenance
The
eSENSE
is basically maintenance free in normal environments thanks to the
built-in self-correcting
ABC
algorithm. Discuss your application with your distributor in
order to get advice for a proper calibration strategy.
PLEASE NOTE! The sensor accuracy is defined at continuous operation (at
least 3 weeks after installation)
Electronic products should be disposed of via a suitable recycling centre.
