Oldham MX62, User Manual

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Page 22
3.3.1. Operating status
The measured signal is within the measuring range and the preset alarm
levels.
Display, messages, outputs:
LED module: LED Power is on
System: all LED are off, no relay is activated
RBM/REM: no relay is activated
AAM: 4-20 mA or 0-10 V
(corresponding to the detected gas concentration)
LCD module: normal operation (see chapter 4)
Printer: no message
3.3.2. Alarms
The system WinPro
®
/ MX62 has three free adjustable alarm levels within
the measuring range of 4-20 mA.
The software ConfigPro allows, for example, adjusting of alarm levels,
latching of alarms or setting of alarm thresholds for mean values within a
specified time. Furthermore, alarms can be triggered in case of over or
under run of alarm levels.
For numerous target gases, preset measuring profiles are available in
ConfigPro .
Display, messages, outputs:
LED module: corresponding LED Alarm are on
System: all LED are off, no relay is activated
RBM/REM: corresponding relays Alarm 1 , Alarm 2 and/or Alarm 3
are activated
AAM: 4-20 mA or 0-10 V
(corresponding to the detected gas concentration)
LCD module: message: Alarm 1 , Alarm 2 and/or Alarm 3
Printer: message: Al1 , Al2 and/or Al3
3.3.3. Channel fault
In case of channel malfunction, the measured signal has either fallen
below 2 mA or exceeded 24.5 mA. Channel malfunction could, for
example, mean interruption or short circuit of the signaling line. The
detector may also be defective.
It is also possible that communication with AEM or LOOPM is
interrupted. In this case, all channels go into the fault mode about 30
seconds following loss of communication.