Siemens airanger DPL PLUS Instruction Manual page 67

The AiRanger DPL Plus uses the TS-3 temperature sensor assigned to the transducer. If
one is not connected, the ultrasonic/temperature transducer is used. If the transducer
does not have an internal temperature sensor, the Temp Fixed (P661) value is used.
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.
If the atmospheric temperature of two monitored vessels is identical, connect at TS-3
Temperature Sensor to terminals 10 and 11 and select TS-3 Sensor #1. The temperature
measurement from the single TS-3 is used for the air temperature measurement of both
vessels.
P661 Temp Fixed
Use this feature if a temperature sensing device is not used.
Primary Index
Values
Related
Enter the temperature (in °C) of the atmosphere within the transducer acoustic beam. If
the temperature varies with distance from the transducer, enter the average temperature.
P662 Temperature Sensor Allocation
Use this feature to reallocate TS-3 sensors 1 and 2 to different Point Numbers.
Primary Index
Values
Related
As preset, TS-3 sensors 1 and 2 are allocated to Point Numbers 1 and 2 respectively. To
alter this allocation, enter the TS-3 sensor number whose temperature measurement will
be used for the distance calculation of the Point Number displayed. When both TS-3
temperature sensors are allocated to a Point Number, the temperature measurements
from each sensor are averaged for that vessel.
7ML19981BD02
Transducer
Range: -199 to 199 (preset = 20 °C)
• P651 Sound Velocity Calibration
• P653 Velocity
• P654 Velocity at 20°C
• P660 Temp Source
Transducer
1 * TS-3 #1
2 TS-3 # 2
1.2 TS-3 #1 and 2 average
• P660 Temp Source
AiRanger DPL Plus – INSTRUCTION MANUAL Page 61