The analog output parameters comprise the scale factor and the offset. The scale factor corresponds to the physical unit per Volt (unit/V) output by the system, while the offset corresponds to the physical value at which the user wants the analog output to be at zero volt. For example, with a scale factor set to 10 °C / V and the offset set to 5 °C, the temperature as a function of the analog output voltage is given by:
Temperature = [Voltage output] x 10 °C / V + 5 °C
The default value of the scale factor is 50 °C / V (or its equivalent in °F) and the default value of the offset is 0 °C (or its equivalent in °F).
During a No Signal condition, constant values are output as follows: analog output value = 0 Volt, RS-232 serial ports = 65 536.0.
For more details, please see the complete FOTS100 User Manual, available under the Support tab.
Use with high-accuracy, fiber optic temperature probes for use in MRI (separate purchase):
- The Polyimide round tubing protects the sensing element its flexibility and rigidity provide excellent pushability.
Surface Temp Probe: sensor 1 mm OD, PFA tubing 0.9 mm OD – TSD181 8 m
- cable sheath rated up to 85 °C.The glass tube at the end of the probe provides a robust protection over the sensing element as well as a firm connection from sensor to cable.
Note: FOTS100, TSD180, and TSD181 are suitable for MR field strength of 3T and lower; see FOTS200 with TSD380 and TSD381 transducers for high field strength MRI applications.