- Scaling mode: Set the channel scaling mode.
- Defined slope intercept: Specify the Slope and Intercept of the scaling line.
- Defined zero span: Specify the Electrical zero of the sensor scaling line. Enter both the Electrical span and the Physical span.
- Defined two point: Specify the Electrical 1, Physical 1, Electrical 2 and Physical 2 points to define the scaling line.
- Experimental two point: Use the Use the experimental two point scaling option to define the two point parameters based on experimental measurements. option to define the two point parameters based on experimental measurements.
- Internal shunt resistor: Use Use shunt scaling for applicable eDAQXR layers and MX modules. for modules with a shunt resistor. Specify the Shunt resistor, Shunt polarity and % Dev parameters before starting experimental scaling. To calculate the equivalent Physical span from a known shunt, click Define Known Shunt and enter the known values.
NOTE
To calculate the equivalent Physical span from the known physical span associated with a known shunt resistance, open the single channel editor and click Define Known Shunt and enter the known values.
- Strain gage: Specify the Strain gage factor and Bridge factor.
- Electrical units: Electrical units of channel input. This is fixed by the system and cannot be changed. The defined sensor scaling is used to convert data from Electrical units to Physical units.
- Units: Physical units of measurement for the channel.
- Prerun zero mode: Set to Interactive only to allow channel zeroing.
- Prerun zero offset: Automatically set after zeroing a channel. The user can edit this, but that is not generally advised.
- Prerun zero target: Specify the physical value desired for the zero task. Typically, this is 0.0, but not always. For example, this parameter may be set to 1.0 (g) for an accelerometer that senses the force of gravity. In this example, the zero task would result in the channel data being offset so that the current reading is 1.0.
- Range min and max: Specify the expected extreme values of the channel. These parameters are most significant for the EBRG and EHLS layer channels because they are used to set the signal conditioner gains and offset. For other channel types, they are less significant. However, for all channel types, they are used as defaults for the histogram bounds in applicable data modes, and they can also be used as default y-axis limits for strip chart displays.
- Warning and Alarm min and max: Specify the desired values for warning and alarm thresholds.
- Enter a real number that defines the level in physical units, or a real number followed by the ‘%’ character that defines the level as a percent of Range max or min, or leave the cell blank to inhibit the warning or alarm.
- The percent value must be in the range of 0% to 120%.
- The % of Range max is independent of Range min and vice-versa. For example, if Range max is set to 1000 and Range min is set to -500 and 90% is used for both alarm levels, the alarms trip when the data value becomes > 900 or <-450. If the user changes the Range min to -600, the Min alarm threshold changes to -540. However, the Max alarm threshold does not change (i.e., it is still 900).
- The values of the warnings and alarms, in terms of real numbers, must satisfy the following condition for all defined parameters:
Min alarm threshold < Min warning threshold < Max warning threshold < Max alarm threshold. - A min or max warning will show a yellow background for the numbers.
- A min or max alarm will show a red background for the numbers.
- Max electrical: This field is applicable to MXB modules only. It is used to set the signal conditioner gain and resultant measurement range.