Siemens HydroRanger 200 HMI Operating Instructions Manual page 174

2.11.1.5. Temperature Transducer Allocation
2.11.1.6. Fixed Temperature
Page 164 HydroRanger 200 HMI – OPERATING INSTRUCTIONS
If the acoustic beam atmosphere temperature varies with distance
from the transducer, connect a TS-3 Temperature Sensor and
ultrasonic/temperature transducers, and select average.
In gasses other than air, the temperature variation may not
correspond with the speed of sound variation. In these cases, turn off
the temperature sensor and use a fixed temperature.
This feature may only be used for differential or average Operation
(2. 1 .3. Sensor Mode = Dual-Point Difference or Dual-Point Average).
Transducer
Index
*Transducer 1
Transducer 2
Options
Transducer 1 and 2 average
2. 1 1. 1 .8. Auto Sound Velocity
•
2. 1 1. 1 .2. Sound Velocity
•
Related
2. 1 1. 1 .7. Sound Velocity at 20°C
•
As preset, the temperature measurements of ultrasonic/temperature
Transducer 1 and 2 are allocated to Points 1 and 2, respectively.
If there is a need to have the temperature measurements from both
transducers to be identical while one device is located close to a
radiant heat source, use this feature. Allocate the temperature
measurement of the other transducer to both transducer Point
Numbers.
Enter the number of the Transducer whose temperature
measurement will be used for the distance calculation of the Point
Number displayed. When both transducers are allocated to a Point
Number, the temperature measurements from each are averaged.
Sets a fixed temperature value if a temperature-sensing device is not
used.
Transducer
Index
Range: -199 to 200°C
Values
Preset: 20 °C
2. 1 1. 1 .8. Auto Sound Velocity
•
2. 1 1. 1 .2. Sound Velocity
•
Related
2. 1 1. 1 .7. Sound Velocity at 20°C
•
2. 1 1. 1 .4. Temperature Source
•
Enter the temperature of the atmosphere within the transducer
acoustic beam. If the temperature varies with distance from the
transducer, enter the average temperature.
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