Dokument
IMA 190
HFE507
Rev
5
Sid
42 (44)
Marking Function
CALb CO2
Background calibration = CO
2
sensor calibration with fresh air
. An easy way to
correct the zero point error. The sensor needs fresh air (380-420 ppm CO
2
). The CO
2
sensor is calibrated to 400 ppm CO
2
.
CAL CO
Zero point calibration
of the CO sensor
with fresh air. The CO sensor is calibrated to
0 ppm CO
PLEASE NOTE!
The sensor accuracy is defined at continuous operation (at least 3 weeks after
installation)
Self-diagnostics
The system contains complete self-diagnostic procedures. A full system test is
executed automatically every time the power is turned on. For
M-SENSE III
the
internal voltage regulators and outputs are checked. In addition, constantly during
operation, the sensor probes are checked against failure by checking the valid
dynamic measurement ranges. These different system checks return error bytes to
the system RAM. If any error is detected, the yellow LED will be lit
until the error has
vanished and the error flag is reset. “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 state – either by pushing MENU & ESC buttons
simultaneously for (=Entr(+-) or by power off and restart.
By pushing the push button ”MENU” the error code
number Exxx
is shown on the
LCD
.
Descriptions of the different codes are listed below.
ESC
MENU
ESC
MENU
Gas inlet CO2
Gas inlet CO2
