G-Link
®
-LXRS
®
Wireless Accelerometer Node
User Manual
Sensor Settings and Operation
39
6.3
Conversion Values
The conversion values for the G- Link
®
- LXRS
®
are determined when the device is
calibrated at the factory, and they require no user adjustment.
Three types of calibrations are available depending on the level of accuracy required for the
application: a standard calibration, a NIST-traceable, or ASTM-traceable calibration. For
more information
see Parts and Configurations on page 54
. For applications with unique
installation conditions it may be desirable to adjust the conversion offset value or perform a
field calibration. To determine if this is appropriate, contact LORD MicroStrain
®
Technical
Support (
see Technical Support on page 52
).
The conversion values include the slope, offset, and formula for converting the sensor A/D
value (bits) to engineering units. The bits are the digital representation of the sensor voltage
output. The type of sensor, channel, and desired engineering units determine what
conversion values are available. The conversion values are entered via the Node
Commander
®
and saved in the node memory for the applicable channel.
The conversion values can be entered in two menus (
Figure 30 - Abbreviated Conversion
and
Figure 31 - Advanced Conversion Values Menu
) . The channel
Configuration menu has more options than the Calibration Coefficients menu, but both are
acceptable ways to enter the values and formulas.
Figure 30 -
Abbreviated Conversion Values Menu
