美国NDT James A-AB-1200 A-AV-1300 A-AA-1100 Air Meters混凝土含气量测试仪（砼含气量测定仪）以最高工业标准生产。这是量度混凝土最精确的仪器。A-AB-1200是重量轻、耐用及容易使用的仪器。
James Air Meter for Fresh Concrete
James offers a complete line of pressure air meters as well as air entrainment meters for determining the percentage of entrained air in freshly mixed concrete.
· Bridge Decks
· Cold Weather Concrete
· Light weight
· Superior rugged design
· Easy to read gauges insure air entrainment consistency
· Three popular models to choose from
· Conforms to ASTM C-173, C-231
Air content plays an important role in concrete, James offers the user a full range of air meters such as ASTM "Type A" Pressure Meter, ASTM "Type B" Pressure Meter and the Volumetric Air Meter.
A-AB-1200 ASTM Type B pressure air meter (most popular design)
The James Instruments™ ASTM "Type B" Pressure Air Meter is manufactured to the highest standards in the industry. It is the most precise air measuring device available for concrete. Utilizing a heat treated aluminum body and cast in handles on the base the A-AB-1200 is a light weight, durable, and easy to use piece of equipment.
The James Instruments™ ASTM "Type B" Pressure Air Meter features a large number of mechanical improvements over previous designs. The unit uses the latest technology available in clamping systems. It uses large stainless steel clamp levers, each with a holding capacity of 2500 lbs. These clamps provide the user with dependable operation every time. It also features innovative sealing technology for accurate readings and long life. Ruggedness has also been improved by using full welds on critically hardened seams rather than spot welds. The A-AB-1200 also comes with a durable, advanced, high volume pump as well as a large easy to read gauge, and bourdon tube. These features makes the James Instruments™ ASTM "Type B" Pressure Air Meter the most durable, accurate, rapid and easy to use meter on the market. The pressure gauge is color coded for entrained and entrapped air. The system meets ASTM C- 231 & AASHTO T152 standards.
The A-AB-1200 James Instruments™ ASTM "Type B" Pressure Meter comes with Air Meter, carry case, calibration vessel, inside calibration vessel, outside calibration vessel tube, 3 oz syringe, Strike off bar, 24" tamping rod and 16 oz rubber mallet.
A-AV-1300 James Instruments™ ASTM Volumetric Air Meter
Easily measures entrained air in any type of concrete. It has a state of the art design where there are no threads to strip, an easy to use expansion plug top and an all stainless steel V clamp that securely holds the top and bottom together. The unit also has a leak proof 'O' ring design, as well as improved clamp system so that it can easily and smoothly roll on the clamp.
This light weight unit weighs 1/3 of its brass counterpart and about 1/2 the weight of an aluminum unit. Easy to clean, the unit is made of reinforced fiberglass and PVC. The system conforms to ASTM C-173.
The A-AV-1300 James Instruments™ ASTM Volumetric Air Meter comes with Meter, Funnel, Syringe, Tamper, Calibrated Cup, Mallet, Strike off Bar and Plastic Carry Case.
A-AA-1100 ASTM “Type A" Pressure Air Meter Model
The James Instruments™ ASTM "Type A" Air Meter is used to determine the amount of entrained air in freshly mixed concrete.
The A-AA-1100 "Type A" Pressure Air Meter needs little or no maintenance and is the meter of choice in certain regions. The measurements are displayed on the graduated cylinder attached to the meter after the sample base has been pressurized.
This light weight aluminum design conforms to ASTM C- 231 and the complete systems comes with Meter, Calibration Vessel, Rod, Scoop, Strike off Bar, Mallet, Instructions and Steel Carry case.
· Net Wt. 21.5 Lbs. (9.7 kg)
· Height 22 in. (56 cm)
· Diameter 9 in. (23 cm)
· Net Wt. 5.5 Lbs. (2.5 kg)
· Height 24.25 in. (61.5 cm)
· Middle Dia. 7.25 in. (18.4 cm)
· Volume 134 cu.in. (2200 ml)
· Sight Tube 0-6%
· Net Wt. 30 Lbs. (13.6 kg)
· Height 24.3 in. (61.7 cm)
· Diameter 12 in. (30.5 cm)
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