Humboldt H-4379 User manual

product manual
07.17‑
H-4379 & H-4379.5F
Sand Equivalent Shaker
with Digital Timer

Introduction
This motorized sand equivalent shaker features a digital timer, which can be set
from 0 to 60 minutes with automatic shutoff. The timerfeatures an easy-to-use
digital interface with an accuracy of 0.5% to increase accuracy and ease-of-
operation.
The consistent, repeatable oscillation of the apparatus eliminates operator-
caused variations. Shaking operation delivers an 8" (203mm) stroke at a speed
of 175 ±2 strokes per minute.
The equipment meets specifications for the following tests:
ASTM D2419
AASHTO T176
California Test Method 217
General Information
Your Sand Equivalent Shaker 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.
Physical Specification:
Shipping weight: 125 lbs. (56.7kg)
Overall height: 24” (61 cm)
Base dimension: 12” x 24” (31 x 61 cm)
Power Supply:
115V, 60Hz, 6.8amps, 1 phase (H-4374)
230V, 50Hz, 3.6amps, 1 phase (H-4374.5F)
Check that your machine has the correct voltage for your
local supply.
Power Cord: Your Sand Equivalent Shaker is fitted with a molded vinyl
grounding plug. The core is made of three conductors (USA color
coding).
Green Ground (Earth)
White Cold (Neutral)
Black Hot (Live)
(Note: The molded vinyl plug is removed on the H-4374.5F)
Initial Installation
Remove the packing list and verify that parts have been received. Remove the
wood support packaging from underneath the motor. The unit is complete
assembled and ready for use. Place the machine where it is to be used in
the laboratory or field and mount it securely to a firm and level base. Plug or
connect to the electric power indicated.

Operation
Digital Control (Timer) Panel:
The digital Timer Control Panel is located on the upper, right-hand side of
the machine base, right above the on/off switch.
To operate, turn the Sand Equivalent Shaker on.
Select the desired time using the Up and Down buttons on the control
panel.
Press the Start button to start the timer. This energizes the relay (N.O.
contacts close) and the displayed time begins counting down.
When the time remaining reaches zero, the relay with de-energize (N.O.
contacts open).
Pressing Start while the timer is running will end the cycle and reset the
timer.
Changing the Timer Operating Mode
With power applied to the timer, press and hold the Up and Down buttons
simultaneously until the current operating mode is displayed. (OP1=0 to
60min mode; OP=0 to 99sec mode.)
Press an Up or Down btton to change the displayed operating mode, then
press Start within 3 seconds to save the new operating mode.
Note: If Start is not pressed within 3 seconds, the timer will revert back to
the original operating mode.
Preset Travel and Speed:
The shaker has a throw of 8 ± 0.04” and operates at 175 ± 2 cycles per
minute.
Method:
Prepare the sample to be tested according to the governing agency
standard(s). Place the clear plastic cylinder containing the test sample and
rubber stopper in position on the slide assembly of the shaker. The end with
the spring loaded holder fits over the cork (rubber stopper) in the open end
of the clear cylinder.
Select the time period appropriate for the test, either 45 seconds or 10
minutes using the center toggle switch. Then press the start push-button
switch to begin the test. The test will end at the end of the elapsed time
selected, or by the operator pressing the pushbutton stop switch any time
during the test.
Maintenance
First unplug the machine from its power receptacle or source. Normal routine
maintenance consists of lubrication at several key locations. In addition, worn
components should be suspected if there is any unusual sound or action of the
machine.

www.humboldtmfg.com
HUMBOLDT
Testing Equipment for Construction Materials
Humboldt Mfg. Co.
3801 North 25th Avenue
Schiller Park, Illinois 60176 U.S.A.
U.S.A. Toll Free: 1.800.544.7220
Voice: 1.708.456.6300
Fax: [phone]
Email: [email protected]
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.
Lubricate as follows:
A. The slide assembly should be lubricated once a month with
approximately three (3) drops of household oil on each end of the main
slide bar.
B. Two (2) grease fittings should be greased once a year with automotive
type grease. These are accessible from under the machine through the
fly-wheel.
C. The cam action guide, H-4374.18 and the two outside slide bars,
H-4374.27 can be greased by smearing a film of grease on each one.
Accessories
In addition to the Sand Equivalent Shaker, Humboldt Mfg. Co. also has available
a complete Sand Equivalent Test Set that includes four graduated cylinders,
siphon assembly, weighted foot assembly, wide mouth funnel, 3 oz. measuring
can and standard stock solution. Consult the Humboldt catalog for this and for
ordering accessories separately.