Statox 503 Control Module
Page
18
of
46
Issue 10 / 2018
Service Mode
As soon as the menu is entered, the module goes into the service mode. The LED „S“ is flashing. In the service
mode the analog output is locked at 2 or 4 mA. The alarm LEDs and relays are inhibited.
If no button is pushed within 30 seconds, the module returns to measuring mode. This time-out it
not active
during zero adjustment and calibration in the menu „CALIB ROUTINE“
when switching the sensor head power supply on or off in the menu „SENSOR POWER“
(display shows „SENSOR ON“ or „SENSOR OFF“)
during the program selection in the menu „CHOOSE PROGRAM“
during the bridge voltage is displayed in the menu “SENSOR TEST”. In this mode the time - out is 60
minutes to allow enough time for maintenance work.
Statox 503 in Control Module Operation
The sensor heads for toxic gases, oxygen or combustible gases measure the concentration of the target gas
in the field. Statox 503 evaluates the signal and displays the value. Any alarm threshold exceeding is signaled
by an LED and the alarm relays is activated. The alarm is also communicated on the bus.
Selecting the measuring program
In this menu the appropriate measuring program can be selected. The program defines the target gas, the
measuring range, the concentration window for span gas and the ex - works settings of the relays. See an
overview of all available programs in the program listing enclosed with each module.
In any case the first step is always to select the appropriate program. This must be done
before the sensor head is connected, otherwise the sensor can be damaged.
If a new program is selected, the alarm settings and relay configurations according to the
program listing are valid and the calibration data for the sensor heads type HRC, ARE, LCIR,
MCIR, CO
2
and PID will be erased. A new calibration is necessary.
!
!
