Kaman Extreme Environment Sensors - Manual (Page 9)

High Temperature Displacement System
The sensor were calibrated per the specifications listed in appendix A or as specified
in the sales order.
The measuring system is somewhat susceptible to metal objects within its environs
besides the target being measured. Change in the calibration may result if metal
objects are brought to within approximately 1/2 of the sensor diameter from the side
of the sensor. Recommended sensor mounting for the three sensors are shown in
Appendix C. Should it be necessary to violate the rule of thumb for mounting or
installation purposes, readjustment of the signal conditioner controls may be
required. Optimum performance of the system is obtained by simulating the actual
mounting geometry using a side loading ring during factory calibration.
The sensor required thermal equilibrium for its operation. Furthermore, the target
and sensor should be at nearly the same temperature to maintain proper calibration
and reduce repeatability errors.
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