Humboldt H-1820 Large-Capacity Vacuum Pycnometer - Manual (Page 3)

General
The Large-Capacity Vacuum Pycnometer unit has many of the same features as H-1750
but also has sample capacity of 10L (2.64 gal.), 6kg (13 lbs.) weight, with maximum
aggregate size of 50mm (2 inches). Set features domed transparent cover for easy
observation of sample testing. Unit includes water inlet valve and ¼" I.D. hose, quick
disconnect, vacuum gauge, vacuum hose and aspirator with 3/8" NPT fitting. Flange
O.D. is 10-3/4" (273mm); maximum clearance above plate is 7-3/4" (197mm). Order
H-1826A or H-1826A.5F vibrating table, vacuum pump and H-1752, H-1754 or H-1754D
manometer separately. Replacement parts are available separately. Dimensions: 9-7/16"
I.D. x 12-1/8" (240 I.D. x 311mm). Meets ASTM D2041; AASHTO T209, T283.
Shipping Inspection
Your Humboldt Vacuum Pycnometer was inspected and tested prior to shipping.
Carefully check the instruments and accessories for any damage, which may have
occurred in transit. Claims for any damage must be made against the delivering carrier,
but Humboldt should also be notified so that we can assist you as much as possible.
Specifications
Sample size: Up to 10 liters
Reproducibility: Better than 0.4%
Dimensions:
16"H x 10 ¾" OD
Operating Procedure
1. Weigh and record weight of empty Vacuum Pycnometer.
2. Load the sample into the Vacuum Pycnometer.
3. Weigh the Vacuum Pycnometer containing the sample to be tested. Calculate and
record the initial weight of the sample.
4. Connect the aspirator to a water faucet and to the Vacuum Pycnometer.
5. Connect the water inlet hose to the water supply and the Vacuum Pycnometer.
6. Operate the aspirator by turning on the faucet to which it is attached to create a
vacuum of at least 10" of HG within the sample chamber.
7. Open the water inlet valve and allow the Vacuum Pycnometer to fill completely,
being careful not to turn off the aspirator.
8. Close the water inlet valve.
9. Disconnect the aspirator and the vacuum gauge at the quick-disconnects from the
Vacuum Pycnometer.
10. If the Pycnometer is not full, use the squeeze bottle to fill with water.
11. Disconnect the water inlet hose and the quick-disconnect from the Vacuum
Pycnometer.
12. Weigh the Vacuum Pycnometer and record the final weight.