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
The principle of operation of precision pressure transducers is 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.
Specifications
|
|
ПДС-1 |
ПДС-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, % URL |
125 |
|
|
Limits of permissible measurement error within the operating temperature range, % |
ф± 0,08 |
|
|
Monitored area |
sea water, air |
|
|
Operating temperature range, °C – sea water – fresh water |
from -5 up to +40
from 0 up to +40 |
|
|
Power supply voltage, V |
5,0+0,5 |
6,5+0,5 |
|
Current consumption, mA, not more than |
145 |
50 |
|
Output interface |
RS-485 |
|
|
Sampling time, ms, not less than |
200 |
600 |
|
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 Note — BK-1 powers up to 20 connected PDS |
27±5 |
|
Current consumption (without PDS), not more than, A |
0,2 |
|
Dimensions, mm |
130х119,3х46,4 |
|
Weight, kg, not more than |
0,35 |