Benefits
- high accuracy characteristics over the entire operating temperature range up to 0.08% over the entire pressure measurement range, including the initial section
- high resolution
- sealed converter connector
Scope
- autonomous uninhabited underwater vehicles, including gliders
- air-cavity vessels, ekranoplans (WIGs)
- water level measurements in wells, tanks, etc.
Principle of Operation
Precision pressure transducers operates based on changing the resonant frequency of vibrations of high-quality quartz resonators with long-term stability of calibration characteristics, under the impact of the measured medium pressure. One control unit allows connecting up to 20 converters with a single cable with information output to the display.
The display shows simultaneously the pressure information from 4 transducers with a sequential survey of all transducers. With external power supply for pressure transmitters, up to 31 transmitters can be connected to the control unit.
The display shows simultaneously the pressure information from 4 transducers with a sequential survey of all transducers. With external power supply for pressure transmitters, up to 31 transmitters can be connected to the control unit.
Specifications
|
|
PDS-1 |
PDS-2 |
|
Upper limit of measured pressure, MPa |
0,25; 0,6; 1,0; 2,5 |
|
|
Lower limit of measured pressure, MPa |
0,06 |
|
|
Maximum allowable pressure, % of full scale |
125 |
|
|
Allowable reduced measurement error limits in the operating temperature range, % |
ф± 0,08 |
|
|
Controlled environment |
sea water, air |
|
|
Operating temperature range, °C: sea water/fresh water |
5 to +40 / 0 to +40 |
|
|
Power supply voltage, V |
5,0+0,5 |
6,5+0,5 |
|
Current consumption, mA, not more than |
145 |
50 |
|
Output signal interface |
RS-485 |
|
|
Sampling period, not less than |
200 |
600 |
|
Overall dimensions |
Ø 48х148 |
|
|
Weight, kg, not more than |
0,6 |
|
Control unit specifications
|
Operating temperature range, °C |
from -5 up to +40 |
|
Power supply voltage, V (BK-1 provides power to up to 20 connected PDS) |
27±5 |
|
Current consumption (without PDS), not more than, A |
0,2 |
|
Overall dimensions, mm |
130х119,3х46,4 |
|
Weight, kg, not more than |
0,35 |
