QPS Pneumatic Type Remote Level Gauging Device
Product Description
QPS Pneumatic Type Remote Level Gauging Device
Product Introduction:
QPS-100 type air bubble type remote level gauging device is applied to measure and control the level in ballast tank, draft, L.O. tank, F.O. tank of various warship, dock, oil extraction flat roof etc.
Operating Principle:
The operating principle is based upon the measurement of the hydrostatic pressure by providing a constant low flow of air or pressure into a probe which opens at the tank bottom. After the air pressure keeps in balance with the hydrostatic pressure of the liquid in the tank, the remaining air pressure overflows as air bubble from the end of the sounding pipe, the balanced air pressure in the pipe is hydrostatic pressure of the liquid depth. The pressure can be directly indicated by indicator, also can be outputted as 4~20mA DC signal by P/I converter.
Main Technical Specification:
| Range | 0~40 m (Option) |
| Accuracy | ± 1.5%F.S |
| Working temp. | -20~100℃ |
| Air consumption | 10~80 L / h |
| Air pressure | 7.5 kg/cm2 |
| Output distance | Max 400 m (pipeline output) |
| Output | 4~20mA two wire |
| Power voltage | DC24V |
Components Of Device:
1.Dual Check Type Safety Chamber (Air Purge Head):
2.Level Indicator With Gauge Saver:
| LEVEL INDICATOR | |
| Size | 144×144 |
| Accuracy Class | Class 1.5 standard；Class 1.0 option；Class 0.5 option |
| Graduation | Height or volume/Height and volume |
| Including the zero adjuster | |
| GAUGE SAVER | |
| Body material | AL6061 |
| Differential | Below 0.01kg/cm2 |
| Including the range Adjuster | |
3.Pneumatic Modulator:
| Air pressure | 4.5kg/cm2 |
| Flow rating | 10~80 L/h |
| Blowing pressure | 4.5kg/cm2 |
| Connection | Air supply-PT1/8″;Signal line-PT1/8″ |
| Including the Flow rate adjuster and main air non-return check valve. | |
4.Draft Box:
Device Example:
1.QPS-100D-C Type
2.QPS-1OOQ-C Type For Draft
3.QPS-1OOQ-C Type