M&G HK-1500 Offers

Features

• Floating ball
• Self-regulating
• Overhung weight carriers
• Quick setup and operation
• Non-contaminating test fluid
• Designed for lab use
• Ball valves
• Easy levelling

Floating ball

While in operation, this tester’s ball and weights float freely, supported only by a thin film of air which is virtually frictionless. This eliminates the necessity to rotate the weights during testing and allows the user to concentrate on the instrument calibration.

Self-regulating

The instrument’s built-in flow regulator automatically adjusts the input air flow to maintain the ball and weights in a float position. The regulator also compensates for variations in pressure from the air supply. These features eliminate the necessity of having to continually adjust the supply during the test and provides for an easy up and down scale calibration.

Overhung weight carriers

Another feature of this deadweight tester is the way that the weights are positioned on the carrier. It utilizes an overhung weight carrier design. This design employs a tube carrier that is positioned over the column and onto the ceramic ball. The centre of gravity for the stack of weights is lowered, reducing side thrust and friction; which lengthens the life of the ball/nozzle and carrier. This also improves measurement accuracy

Quick setup and operation

The setup for this tester is completed by simply connecting two tubes: one for the supply and one for the unit-under-test, levelling this tester, and adding the appropriate weights. Operation is fast and efficient with no valves to adjust and no regulation needed between set points. Pressure regulators are not required if the air supply is within the tester’s operational requirements.

Non-contaminating test fluid

The instrument’s test fluid is Nitrogen or instrument quality air complying with the ISA Standard S7.3. This fluid is non-contaminating to virtually all processes, thus eliminating the need to clean instruments after calibration and before use.

Designed for lab use

This tester is designed for precision and is accurate enough for lab use. However, the construction is rugged enough to allow for reliable field operation as well.

Ball valves

The floating ball testers, such as this deadweight tester, incorporate multi-position ball valves for both the inlet and outlet valve connections. These ensure trouble free operation that is both fast and efficient.

Easy levelling

The floating ball testers incorporate a bulls-eye level for reference when preparing the unit for use. The tester also employs a 3-leg levelling system which is more convenient and is superior to a 4-leg system.