Dead Weight Type Oil And Water Constant Pressure System

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Dead Weight Type Oil And Water Constant Pressure System Specification

Automation Grade
Manual

Frequency
50 Hz

Voltage
220 V

Accuracy
100 %

Temperature Range
Room Temperature to 60C

Power Source
Electric

Capacity
2 Liters

Feature
Highly Efficient

Measurement Range
0.2 to 0.8 MPa

Model No
DWCP-102

Core Components
Cylinder, Reservoir, Plunger, Weights

Equipment Materials
Stainless Steel & Borosilicate Glass

Type
Dead Weight Type

Usage
Laboratory

Display Type
Analog

Dimension (L*W*H)
450 x 300 x 500 mm

Weight
Approx. 20 kg

About Dead Weight Type Oil And Water Constant Pressure System

Dead Weight Type Oil And Water Constant Pressure System

This device is used to maintain cell pressure constant for a long duration and the system can be used in place of conventional constant pressure system using mercury pots where certain minimum heights are required. Problems like de-airation of pump, leakage of mercury etc. is eliminated in this system . This unit is smaller in volume and can be used in mobile laboratory also. This can maintain pressure in the cell upto 20kg/cm sq. Pressure is maintained constant in the system by a balancing calibrated weights on a spindle against a column of oil, operating under constant feed back.

Construction

The system consists of an oil pump continuously driven by an electric motor during the test period. The internal components are housed in a strong compact housing. The piston on which weights are kept rotates with minimum friction. A transparent oil water vessel is provided to transmit pressure to the cell. A hand pump provided facilitates priming and to maintain constant pressure during power failure.

Specification

Range 0-20 bar(0-20kg/cm2 )
Steps of pressure 0.5bar (0.5kg/cm2 )
Accuracy + 0.5%
Electric supply 230 V, Single Phase, 50 Hz, A.C. supply.
Supplied complete with pressure gauge, flow valves, connecting pressure
hose and set of weights to give maximum pressure of 20 bar (20 kg/cm2)

Exceptional Calibration Accuracy

This system ensures 100% calibration accuracy for pressure measurement devices. Its interchangeable oil and water pressure mediums, along with precision-built cylinder, reservoir, plunger, and calibrated weights, make it highly effective for verifying pressure gauges and sensors in laboratory environments. The unit supports both bench top and portable configurations for flexible use.

Durable and Safe Construction

Built with mirror-polished stainless steel and borosilicate glass, the DWCP-102 stands out for its leak-proof, corrosion-resistant structure. The incorporated pressure relief valve adds an essential safety layer, while the analog display allows clear and immediate readings. Its robust 2-liter reservoir supports extended calibration sessions.

Versatile Laboratory Integration

Thanks to its convenient 1/4 inch BSP pressure output and compact design, this system is well-suited for a wide array of laboratory setups. The devices ambient temperature range of 10C to 45C and up to 60C during operation ensures adaptability to various testing conditions, supporting both oil and water as pressure mediums.

FAQs of Dead Weight Type Oil And Water Constant Pressure System:

Q: How is the Dead Weight Type Oil and Water Constant Pressure System typically used in the laboratory?

A: This system is primarily used for calibrating pressure gauges, transducers, and recorders. By applying precise and stable pressure via interchangeable oil or water mediums and dead weights, it enables technicians to accurately verify and adjust the readings of pressure measurement instruments.

Q: What benefits does the interchangeable oil and water pressure medium provide?

A: The option to switch between oil and water as pressure mediums offers flexibility for calibrating a broader range of devices, accommodating both specifications and preferences depending on the instrument being tested or the laboratory standards.

Q: When should a laboratory choose this model over an electronic calibrator?

A: The DWCP-102 is ideal when exceptionally high accuracy and traceability are crucial, as dead weight testers are considered primary standards in calibration. Its manual operation eliminates reliance on electronics, making it suitable for environments where reliability and minimal electronic interference are required.

Q: Where is the optimal location to install or operate the system within a laboratory?

A: The systems portable and bench-mounted design enables placement on sturdy laboratory benches or mobile carts. It should be operated in an area maintaining ambient temperatures between 10C to 45C and with adequate ventilation to ensure optimal performance and safety.

Q: How does the pressure relief valve enhance the safety of the system?

A: The built-in pressure relief valve automatically releases excess pressure to prevent over-pressurization, which could otherwise lead to equipment damage or safety hazards. This feature ensures safe operation during calibration procedures.

Q: What is the process for changing the pressure medium between oil and water?

A: To switch between oil and water, the reservoir needs to be emptied and thoroughly cleaned to avoid contamination. Afterward, fill the reservoir with the new medium, ensuring all connections are secure and leak-proof before resuming calibration tasks.

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