Gilson HM-380D Operating Manual

INTRODUCTION
The Gilson model HM-380D Dead-Weight Direct Shear
Machine is a motorized unit for direct and direct/residu-
al shear testing of soil samples and uses a 10:1 dead-
weight beam loading system to apply vertical confining
pressures. These compact, self-contained units are
built for harsh laboratory environments and require lit-
tle floor space.
This Direct Shear Unit has a strain rate of 0.0001 –
0.3 in/min (0.0025 – 7.62 mm/min) with a maximum
shear displacement of 0.8in (20.3mm) and the travel
speed is set with the thumbwheels on the left side of
the unit. The residual shear force is determined by a
load cell while real time load settings and peak load are
displayed on the digital readout. Vertical load capacity
is 1,411lbs (640kg) and the maximum horizontal shear
force is 1,500lbf (6.67kN). Consolidation and shear
displacement are measured with Displacement Trans-
ducers and displayed on a digital readout.
Shear boxes and weight sets are required and sold
separately.
FEATURES
• Total shear capacity of 1,500lbf (6.67kN)
• Stepper motor controls strain rates to +/- 1% from
0.0001 – 0.3in/min (0.0025 – 7.62mm/min)
• Teflon coated anodized aluminum water chamber
with drainage port included.
• Meets requirements for ASTM D3080 and AASHTO
T 236
REQUIRED ACCESSORIES (purchased separately)
Direct shear boxes are sold separately and are avail-
able in a wide range of inch and metric sizes with round
or square shapes. See all options at www.globalgilson.
com and in the chart.
PHONE: 800-444-1508
740-548-7298
HM-380D Digital Direct Shear
Machine, Dead-Weight
P.O. Box 200, Lewis Center, Ohio 43035-0200
E-mail: customerservice@gilsonco.com
OPERATING MANUAL
Dead-Weight Direct Shear Machine with Linear Variable
Displacement Transducers, Four-channel Data Readout and
Shear Box shown (Shear Box sold separately)
Direct Shear Boxes & Accessories
Description Shear Box
Round Direct Shear Boxes
50mm (1.97in) Diameter HMA-733M
2.0in (50.8mm) Diameter HMA-733
60mm (2.36in) Diameter HMA-734M
2.42in (61.4mm) Diameter HMA-734
2.5in (63.5mm) Diameter HMA-735
100mm (3.94in) Diameter HMA-737
4in (101.6mm) Diameter HMA-736
Square Direct Shear Boxes
50mm (1.97in) Square HMA-733MS
2.0in (50.8mm) Square HMA-733S
60mm (2.36in) Square HMA-734MS
2.42in (61.4mm) Square HMA-734SA
2.5in (63.5mm) Square HMA-735S
100mm (3.94in) Square HMA-737S
4in (101.6mm) Square HMA-736S
Product Web Page: www.globalgilson.com
1
Porous
Cutters Extruders Stones
HMA-743M HMA-763M GSA-208
HMA-743 HMA-763 GSA-210
HMA-744M HMA-764M GSA-213
HMA-744 HMA-764 GSA-217
HMA-745 HMA-765 GSA-219
HMA-747 HMA-767 GSA-231
HMA-746 HMA-766 GSA-232
HMA-743MS HMA-763MS GSA-208S
HMA-743S HMA-763S GSA-210S
HMA-744MS HMA-764MS GSA-213S
HMA-744SA HMA-764SA GSA-217S
HMA-745S HMA-765S GSA-219S
HMA-747S HMA-767S GSA-231S
HMA-746S HMA-766S GSA-232S
Rev: 07/2020
FAX: 800-255-5314
740-548-5314