11.08
product manual
H-2713A
Specific Gravity
Bench Set
Introduction
Product Description
The Humboldt Specific Gravity Bench Set includes the H-2714 Deluxe Bench,
the H-2712A Specific gravity tank kit with heater and circulating pump and the
HB-4537WB scale— a 20,000g x .1g readability scale with weigh-below feature.
The bench is 46" tall with a 31" x 25" platform top, which includes a hole to
accommodate the weigh-below scale feature; and, a crank-operated shelf
that lets you bring the water tank up to the sample, making for easier sample
immersion.
The H-2712A tank kit is comprised of a 26 gal. polyethylene tank, which
measures 18" x 18" x 18" and comes with a drain valve and overflow port.
It also comes with a 200-watt, durable, tank heater and a circulating pump,
both of which are attached to a stainless steel mounting bracket that holds
both securely to the tank. The cover photo shows the Bench Set with the
optional H-3371 wire basket.
A complete Bill of Materials:
Part No. Qty Description
H-2710A.1 1 Specific Gravity Bench
H-2712A 1 Specific Gravity Tank assembly
H-2712A.1 1 Tank
H-2712.3 1 Elbow
H-2712.5 1 PVC fitting w/neoprene gaskets
H-2712.7 1 Faucet, 3/4" NPT
H-2712A.6 1 Pump, Heater and Bracket assembly
H-2712A.2 1 Tank Heater
H-2712.6 1 Pump, 120VAC, 4 watt
H-2712.4A 1 Bracket, SST
HB-4537WB 1 Balance 20,000g x .1g w/weigh below
1 User Manual
General Information
Inspection
Your Specific Gravity Bench Kit was thoroughly inspected before it was shipped
and should be ready to operate as soon as you have completed the set-up
procedure.
Notify Humboldt Mfg. Co. or your local agent and file a claim with any carriers
involved if you find any damage to the machine. Unpack all of the equipment
carefully to prevent loss of small items or manuals.
Physical Specification
Shipping weight: 185 lbs. (78.9 kg)
Overall Dimensions: 16”x18”x10”
Required Power Supply
120 VAC 60 Hz 1 phase, 3 amps
Initial Installation
Remove the packing list and verify that all parts have been received. Normally
you will receive one crate containing the bench and all it's components packed
together. To install remove all the packing from the bench and accessories.
Place the bench in the location it will be used.
To aid in shipping, the crank arm is installed in a reversed position. Before use,
remove the bolt attaching the crank arm and handle (not the bolt holding the
handle to the crank arm) to the unit and reverse it so that the handle is pointing
out and reinstall. This allows the crank arm to be rotated without hitting the
bench top.
This is the bolt,
which should
be used to turn
the handle and
crank arm into the
correct operating
orientation.
Next, install the overflow port extension and the drain valve to the Specific
Gravity Tank, The bulkhead fittings are shipped installed into the tank. The
overflow port extension and the drain valve are shipped with teflon thread tape
installed so that you can just thread these items into their respective bulkhead
fittings in the tank, snuggly, to prevent leaks. Refer to product photo for correct
orientation.
The Tank Heater and Circulator are shipped as a single mountable unit. Just
hang the unit onto the tank lip and plug into a 120VAC source.
You are now ready to fill the tank with water. Place the tank on the Bench
platform and fill the tank with water. The tank should be filled with a sufficient
amount of water to allow the sample and the bail of the sample container to be
under the water.
Unpack the balance and place on top of the bench so that the weigh-below port
and hook line up with the hole in the top of the bench. Attach the AC cord to
the scale and plug into a 120VAC outlet.
You are now prepared to proceed with a specific gravity determination. Mount
your sample into an appropriate sample container and attach the sample and
container to the scale's weigh-below hook. In most cases, you will need an
accessory hook to attach the sample container to the weigh-below hook.
In most cases this can be as simple as a piece of wire bent into an S-hook
configuration. This hook is not included, since it depends on what type and
size of sample and container are being used.
Once you have a sample and sample container attached to the scale, you can
begin to raise the water tank up to immerse the sample and container into the
water tank. To do this, push down on the silver, crank lock on the back of the
bench. This releases the hand crank, which allows you to begin raising the tank
up. To perform an accurate test, crank the tank up until both the sample and the
bail of sample holder are beneath the water.
Please refer to ASTM C127 for specific test instructions and methods.
Accessories
Following is an assortment of accessories, which can be used with the H-2713A
Specific Gravity Bench Set.
8" Specific Gravity Sieve #4— H-3355
12" Specific Gravity Sieve #4— H-3356
Designed for use in specific gravity test applications.
Heavy-gauge brass construction.
Hollow Tube Specific Gravity Cradle— H-2715
Through this unique, yet simple stainless steel hollow
tube designed, water displacement is virtually
eliminated for improved accuracy in specific
gravity test applications.
Specific Gravity Basket— H-3371
Stainless steel No. 8 wire mesh basket features
reinforced construction and bail-type handle.
Dimensions: 8" x 8" dia. Meets ASTM C127.
Shipping wt. 9 lbs. (4kg)
Utility Bucket— H-3372
Heavily galvanized utility bucket has wire-reinforced
top edge, bail-type handle and 14-qt. (13L) capacity.
Meets ASTM C127.
Sample Container— H-3351
For use in testing aggregate soundness, container
is used to immerse samples of coarse aggregate in
solution and then transfer samples to oven for uniform
drying in minimum time. No. 4 wire mesh, bottom
soldered to frame after fabricating. Overall dimension:
10" x 4" dia. (254 x 102mm) with 1/8" (3mm) round
wire handle. Meets ASTM C88; AASHTO T104.
Sample Container— H-3353
Used to immerse samples of coarse aggregates in
solution and transfer samples to oven. #8 stainless
steel wire mesh, bottom soldered to frame after
fabricating. Overall dimension: 5-1/2" x 4" dia.
(140 x 102mm). Meets ASTM C88; AASHTO T104.
Shipping wt. 6 lbs. (2.7kg)
H-3355
H-3356
H-2715
H-3371
H-3353
H-3351
Heater/CirculatorAssembly— H-2712A.6
Comprised of a 200-watt, durable tank heater and
circulating pump attached to stainless steel bracket
that hangs on specific gravity tank to maintain
constant temperature bath.
Specific Gravity Tank w/ Heater/Circulator— H-2712A
30 gal. polyethylene tank, which measures 18" x 24"
x 18" and comes with a drain valve and overflow
port. It also comes with a
H-2712A.6,
circulating pump,
200-watt, durable tank heater and
both of which are attached to a
stainless steel mounting bracket that holds both
securely to the tank. ASTM C127.
H-2712A.6
H-2712A
Warranty
Humboldt Mfg. Co. warrants its products to be free from defects in material or
workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co.,
factory replacement of any part or parts of such product, for the warranty of this
product please refer to Humboldt Mfg. Co. catalog on Terms and Conditions
of Sale. The purchaser is responsible for the transportation charges. Humboldt
Mfg. Co. shall not be responsible under this warranty if the goods have been
improperly maintained, installed, operated or the goods have been altered or
modified so as to adversely affect the operation, use performance or durability
or so as to change their intended use. The Humboldt Mfg. Co. liability under
the warranty contained in this clause is limited to the repair or replacement of
defective goods and making good, defective workmanship.
Humboldt Mfg. Co.
875 Tollgate Road
Elgin, Illinois 60123 U.S.A.
Testing Equipment for
HUMBOLDT
www.humboldtmfg.com
U.S.A. Toll Free: 1.800.544.7220
Voice: 1.708.456.6300
Fax: 1.708.456.0137
Email: hmc@humboldtmfg.com
Construction Materials
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