If you have a good electrical technician available, you could build a voltage divider circuit to lower the 10V signal to 7.5 V. However, if your only choice is 5 or 10 V, it is better to use the lower voltage. The higher voltage could damage both the sensor and the driving circuitry. The slope of the transducer response will be affected by the reduced excitation voltage. A first order "fix" would be to adjust the factory calibration by the ratio of (5/7.5).
