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DASH1 / VariableScaling

Variable Scaling

For many of the inputs, the scaling required to display the values in the desired units is simply multiplication by a scaling factor (for example conversion from cm/s to mph). However, the output of many sensors such as thermocouples, air pressure sensors etc. are often non-linear and this screen provides the opportunity to compensate for this non-linearity by selecting the correct coefficients for entry into the polynomial. By default, the conversion factors for common conversions are already set (cm/s to mph for example ).

Each of the available variables can be selected from a drop down list:

The options associated with each variable can then be altered.

• Channel Name - the descriptive label displayed on the DASH1 when the long variable display option is selected.
• Channel Abbreviation - the descriptive label displayed on the DASH1 when the short variable or bargraph display option is selected.
• Channel Units - the units to be displayed where appropriate for that channel.
• Decimal Places - controls the position of the decimal point on the numerical values displayed.
• High/Low Alarm Values - As the name suggests, these are the values above and below which the DASH1 will display a visual alarm.

Please note, the exceptions to the High/Low Alarm Values are the Engine Speed "RPM" and the X and Y position Channels. The X and Y position channels are not checked for alarm values.

If we take the Engine speed, we can set up the shift lights. The High alarm value is the RPM at which you want the final shift light to come on at. The Low alarm value is the interval at which the other lights come on at. For instance, if you wish to shift at 6000RPM, with a warning every 300 RPM leading up to it, you would enter 6000 into the high alarm value, and 300 into the Low alarm value.

• 4800RPM - Amber, first shift warning light. Please note that if you set Logging Status Display to Shift Light, then this light will be on when the Data Logger is storing data.
• 5100RPM - Amber, second shift warning light.
• 5400RPM - Amber, third shift warning light.
• 5700RPM - Red, fourth shift warning light.
• 6000RPM - Red, final shift warning light.