Manual CWD 2005 Software
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Manual CWD2005.doc 39
6.1.1. Menu keypad
The menu keys are described in the software section and the function depends on
the menu currently displayed and the function changes from menu to menu.
6.1.2. Trend display
The trend display shows the both the trend and the interactive screens of the other
menus. An area is also dedicated to the display of current operating information
6.1.3. Numeric display
The numeric display is for the display of measured values and units of measurement.
6.1.4. Information field
The info field provides a lot of information: Time, operating mode, solenoid status and
also software version and other variables depending on the menu displayed.
Additional information is available depending on the specific menu section.
The lower section of the info field is reserved for internal information. The first line is
the mV signal from the thermopile. V is the signal in Volts from the specific gravity
cell. T1 is the air temperature in °C at the thermopile entrance. The next value is the
differential temperature of any change in incoming air temperature. The next value is
p for differential air pressure. Fr is the current frequency of the fan speed controller
and this value is helpful to monitor the condition of the air filter. Stab. = signal stability
value. During calibration the CWD 2005 determines the calibration duration based on
current stability versus a pre-set stability value of < 0.15 to complete the calibration
cycle and this level ensures that a stable calibration endpoint is reached. Info field is
an important source of information when logging troubleshooting data.
6.1.5. Menu
Return to the main menu regardless of menu or level, also updates system memory.
6.1.6. Start/Stop
This key shuts down the system without switching the main power switch off. The fan
can be programmed for a delayed shutdown. This option can be activated in menu
6.2.1.3.1. The key also enters the data in the system memory.
Note: A system update is performed by the system every 15 minutes.
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