Ele Cash Register 45 9300 User Manual

International  
Operating Instructions  
VACUUM PYCNOMETER  
Model:  
45-9300 (AP-132)  
Distributor:  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
ELE International, Ltd.  
Chartmoor Road Chartwell Business Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
 
International  
VACUUM PYCNOMETER  
MODEL 45-9300 (AP-132)  
I.  
GENERAL INFORMATION  
The 45-9300 (AP-132) Vacuum Pycnometer is designed to be used in determining the  
theoretical maximum specific gravity of bituminous paving mixtures, using the procedure  
described in ASTM standard test method D 2041 for type F containers. This large  
capacity (approximately 10 liters) unit can easily handle samples up to 13.2 lbs (6 kg),  
minimizing segregation effects. Constructed of lightweight polycarbonate, the  
45-9300 (AP-132) Vacuum Pycnometer has a transparent top for easy visual  
observations of the vacuum effects.  
II.  
RELATED USER DOCUMENTATION  
These operating instructions do not contain all the required information for the  
standard test method used to determine the theoretical maximum specific gravity  
and density of bituminous paving mixtures. Please refer to ASTM D 2041 for  
additional information.  
III.  
CALIBRATION  
Calibrate the pycnometer by determining the mass of the container when it is  
filled with water at a range of temperatures, from 60 to 150°F (15 to 65oC), or as  
required. Prepare a graph with temperature vs. mass of the pycnometer filled  
with water for the selected range of temperatures. Designate the mass of the  
container at 77 ± 0.9°F (25 ± 0.5°C) as "D." Refer to ASTM D 2041 for further  
assistance in calibrating and graph preparation.  
1
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
IV.  
OPERATION  
A.  
Sample Preparation  
Follow the procedure outlined in ASTM D 2041 for separating the sample  
particles, oven-drying the sample, and cooling it to room temperature.  
B.  
Operation  
1.  
2.  
3.  
Weigh the empty pycnometer without the lower water inlet hose  
and without the gauge and hose assembly on the top. Designate  
this weight as "B."  
Place the prepared sample in the pycnometer and weigh the  
sample and pycnometer together, designating this weight as "C."  
The weight of the sample is A = C - B.  
Install the gauge and hose assembly and connect the aspirator to  
both the pycnometer and the laboratory water faucet, as shown in  
Fig. 1.  
Note: Instead of the aspirator, a vacuum pump may be connected  
directly (through a water trap) to the hose.  
4.  
5.  
6.  
With the water inlet valve closed, connect the water inlet hose to  
both the pycnometer and the laboratory water supply, as shown in  
Fig. 1.  
To begin operating the aspirator, turn on the water faucet (or  
vacuum pump) to create a vacuum of at least 10" Hg in the  
pycnometer.  
Open the water inlet valve (see Fig. 1) to let water in at a  
temperature of about 77oF (25oC). Fill the pycnometer up to about  
an inch (25.4 mm) below the top of the sphere and then close the  
water inlet valve.  
7.  
Continue applying vacuum and maintain a residual pressure of 1.2"  
(30 mm) Hg or less for 5 to 15 minutes. During this vacuum period,  
agitate the pycnometer vigorously by shaking it with both hands at  
intervals of about 2 minutes to release all the air bubbles.  
2
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
Open the water inlet valve to fill the pycnometer to the very top  
8.  
without leaving any air space. Be careful not to turn off the  
vacuum. Close the water inlet valve.  
9.  
Using the quick-disconnect, detach the gauge-hose assembly from  
the top of the pycnometer.  
10.  
If there is any air trapped in the pycnometer, reconnect the  
aspirator and vacuum gauge (using the quick-connect) and let more  
water in.  
11.  
12.  
13.  
Close the water inlet valve.  
Disconnect the water inlet hose from the pycnometer.  
Within 10 + 1 minutes after step 8, weigh the pycnometer while it is  
still filled with water (de-aired) and the sample. Record this weight  
as "E".  
14.  
Remove the lid and drain the water from the pycnometer. Remove  
the asphalt sample, clean the inside, and clamp the lid on. Re-  
install the gauge and hose assembly, reconnect the water inlet  
hose, and refill completely with water following steps 5 to 8.  
15.  
16.  
Detach the gauge assembly and the water inlet hose.  
Weigh the pycnometer filled with water only, within 10 + 1 minutes  
after releasing all of the air bubbles and filling completely per step  
8. Record this weight as "D".  
Note: It is recommended that a graph of weight versus temperature  
for the pycnometer filled with de-aired water be made, so that the  
value of D can be taken from this graph for any temperature in the  
laboratory. This will eliminate steps 14 to 16. See Section III  
Calibration.  
3
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
V.  
CALCULATIONS  
If the test temperature is within +3° or -5°F of 77°F (+ 1.7° or - 2.8°C of 25°C),  
the following equation can be used to determine the maximum specific gravity of  
the sample, with an error of 0.001 points or less due to thermal effects:  
Where:  
A = Mass of the dry sample in air (grams)  
D = Mass of container when filled with water at 77°F (25° C) (grams)  
E = Mass of container filled with both water and sample at 77°F (25°C)  
(grams)  
Note: If the test temperature differs significantly from the recommended  
77°F (25°C), the formula should be adjusted for thermal effect as  
follows:  
Where:  
A =  
Mass of dry sample in air (grams)  
F =  
Mass of pycnometer filled with water at test temperature (grams)  
G = Mass of pycnometer filled with both water and sample at test  
temperature (grams)  
H = Correction for thermal expansion of bitumen (grams)  
dw = density of water at test temperature, Mg/m3  
0.9970 = density of water at 77°F (25°C), Mg/m3  
Values of H and dw may be obtained from the ASTM graphs in Fig. 2. For more  
details, see ASTM D 2041.  
VI.  
TROUBLESHOOTING  
4
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
A.  
Pycnometer Not Getting Vacuum  
1.  
Check 'O' ring to make sure it is clean and in good shape. If not,  
contact ELE/Soiltest for a replacement 'O' ring.  
2.  
3.  
Check to make sure the water inlet valve is on tight.  
Tighten the stopcock nut (at bottom of stopcock) of the water inlet  
valve.  
B.  
Air Bubbles Entering from the Water Inlet Valve  
1.  
2.  
Check to make sure the water inlet valve is on tight.  
Tighten the stopcock nut (at bottom of stopcock) of the water inlet  
valve.  
C.  
D.  
Clogged In-Line Filter  
Replace the filter assembly.  
Too Many Air Bubbles in Water  
1.  
Air bubbles come from dissolved air in water. Check for this by  
opening water inlet valve (keeping the water inlet hose connected  
to the water supply) after you have gone through Step 8 of the  
operating procedure. The air bubbles should dissolve back in water  
at atmospheric pressure.  
2.  
Try filling the pycnometer with boiled water (after it has been  
cooled).  
If problem still persists, call ELE/Soiltest Service Department for  
assistance.  
VII. ACCESSORIES/OPTIONS  
5
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
45-9301 (AP-131) Filtering Kit. Functions as water trap for vacuum pump.  
45-9320 (AP-134) Manometer  
VIII. SPECIFICATIONS  
Capacity  
Approximately 10 liters; 6 kg (13.2 lbs) sample weight  
Lightweight polycarbonate, with transparent upper half  
2" (50.8 mm) diameter; 30" x 0.5 " Hg  
Construction  
Gauge  
Aspirator  
Plastic; 3/8" pipe thread (included)  
Connections  
Water inlet valve; quick disconnect for vacuum gauge and  
hose  
Dimensions  
Weight  
10-3/4" (273 mm) o.d. x 16" (406 mm) h.  
Net 8 lbs (3.6 kg)  
6
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
FIGURE 1  
.
7
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 
International  
GRAPHS  
8
Distributor:  
ELE International, Ltd.  
Chartmoor Road Chartwell Business  
Park  
Leighton Buzzard, Bedfordshire  
LU7 4WG England  
Phone: + (0) 1525 249200  
Fax: + (0) 1525 249249  
ELE International, Inc.  
PO Box 608  
Loveland, CO 80539  
USA  
Phone: (970) 663-9780  
Fax: (970) 663-9781  
 

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