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- HM-30 Gilson Pressure Meter is higher quality, less expensive, and more accurate.
- All components are supplied in our new sturdy and convenient carrying case.
Gilson's HM-30 offers a higher-quality Type B Pressure Meter for measurement of concrete air content with many improvements that make it a better buy. Long lasting stainless steel clamps adjust quickly and are less expensive to replace. Larger gauge in stainless steel housing is easier to read, calibrate and sealed to reduce need for maintenance. Pump with large, easy-grip handle builds pressure quickly and is shielded to keep dirt and water out of the piston area. Brass petcocks have stainless steel ball valves for accuracy and durability. Petcock handles are vinyl coated for more comfortable operation.
Dimensions and accuracy of the Gilson meter exceeds requirements of ASTM. Included are: Calibration Vessel, Calibration Tubes, 24in (610mm) Tamping Rod, Aluminum Straightedge, Syringe for water, Carrying Case and operating instructions. Cast aluminum chamber is 1/4ft? and can also be used for unit weight and yield determinations. Sturdy plastic carrying case holds meter with all accessories securely in die-cut foam padding. Est. Ship Wt.: 32lb (14kg).
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- Use this volumetric meter for any concrete, but is the only method for lightweight concrete.
- New lightweight alloy model is less than half the weight of original unit.
The new lightweight version of the popular Roll-A-Meter is a simple and accurate device for measuring air content of concrete mixes. It is often used with lightweight aggregate concrete. The lightweight anodized aluminum version is less than half the weight of earlier bronze models. Hard-anodized aluminum bowl and neck are highly scratch and wear resistant.
The base and top are fastened with quick acting stainless steel clamps after concrete sample is placed in base. Water and isopropyl alcohol are added to zero mark on neck, and meter is inverted, rolled, and rocked until air is removed for concrete. Percent of air is read directly from liquid level on scale.
HM-32L Lightweight Roll-A-Meter may also be used as a pycnometer for determining specific gravity of sand, gravel, and cement. Unit is supplied in foam-lined plastic carrying case with Straight Edge, Tamping Rod, Syringe, Baffle-Bottom Funnel, and instructions. Base is 130in? (2,130ml). Overall height: 22in (559mm); Maximum diameter: 8in (203mm). Est. Ship Wt.: 25lb (11kg).
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- Meets ASTM and AASHTO specifications.
- Lightest Volumetric Air Meter.
Volumetric Air Meter accurately and economically measures air content in any type of concrete, including lightweight mixes. The unit weighs only 5.5lb (2.5kg) and is made of dimensionally stable PVC and fiberglass-reinforced plastic. The Volumetair is 1/3?1/2 the weight of similar brass or aluminum units.
Base and top housing fit together with a leakproof O-Ring seal and stainless steel over-center clamp assembly. Parts clean up easily with water. Base volume is 134in? (2,200ml), and sight tube has 0?9.5% x 0.25% calibration. The meter comes complete with Funnel, Syringe, Tamper, Strike-Off Bar, Calibrated Cup, and Mallet in a plastic Case. Overall height: 27in (686mm); Maximum diameter: 7.25in (184mm). Est. Ship Wt.: 15lb (7kg).
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HM-34 Chace Air Indicator Kit is used for quick estimations of air content in fresh concrete. Method is ideal for rapid field tests or to supplement air meter tests. A sample is placed in the measuring cup, then inserted into the glass tube, and the tube is filled with isopropyl alcohol. Percent air is determined by number of lines the alcohol drops in the stem of the vial after agitation. Kit includes Vial, Rubber Stopper, Cup measuring 6-1/4in length x 1-1/8in diameter (159x29mm), cleaning Brush, alcohol Squeeze Bottle, instructions and plastic Case. Est. Ship Wt.: 1lb (0.5kg).
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Calibrators quickly field-check accuracy of pressure-type concrete air meters. With a calibrator in the water-filled base, air meter gauge should read 5% air. Two calibrators are used in a 0.25ft? meter for a 10% air reading.
HM-24 Brass Calibrator is of precisely machined brass. 7.5x2.125in (191x54mm), HxDia. with 0.5in (13mm) thick base. Est. Ship Wt.: 3lb (1kg).
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Calibrators quickly field-check accuracy of pressure-type concrete air meters. With a calibrator in the water-filled base, air meter gauge should read 5% air. Two calibrators are used in a 0.25ft? meter for a 10% air reading.
HM-25 Plastic Calibrator is rugged plastic with metal weighted ring. 3.75x4in (95x102mm), HxDia. Est. Ship Wt.: 3lb (1kg).
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Calibrators quickly field-check accuracy of pressure-type concrete air meters. With a calibrator in the water-filled base, air meter gauge should read 5% air. Two calibrators are used in a 0.25ft? meter for a 10% air reading.
HM-27 Lightweight Aluminum Calibrator is accurately machined to exact dimensions. They are sturdier than plastic, less expensive than brass models. 5.63x3.25in (143x83mm), HxDia.
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