Submersible Load Cell Triaxial Chamber | IP68 to 70bar

Ideal for triaxial chambers with water pressures to 7000kPa

STALC3 Submersible Load Cell for Triaxial Chambers

Stalc3 submersible load cell in triaxial test chamber

Stalc3 submersible load cell in triaxial chamber at Imperial College London, Geotechnical Laboratory

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5 weeks

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£699

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Datasheet 3d Model Frequently Asked Questions

At a Glance

Capacities: 0-1kN up to 0-100kN
Output: 2mV/V
Fully Submersible to 7000kPa
Pressure Compensated Design
High Accuracy: <±0.05%/RC
IP68 Protection Rating

Ideal for High-Pressure Triaxial Chambers
IP68 Guaranteed for Water Pressures up to 7000kPa /70bar
Ideal for Long-Term Testing Thanks to their Temperature Compensation & High Stability
Pressure Compensating System Ensures Optimum Performance Under High Pressure.
For Use in Both Water and Oil

Description

Applied Measurements STALC3 submersible load cell is designed for use in fully submerged in water, at pressures up to 7000kPa. Primarily they are used in triaxial chambers and can be retrofitted into existing triaxial chambers or installed into new ones. Triaxial chambers are pressurised chambers used for testing the shear strength of core samples taken from the earth. These provide a direct measurement of the axial compression load applied to the sample under test. Read more about triaxial chambers on our triaxial testing page.

In addition, our STALC3 submersible load cell can be adapted for use in other applications where they will be submerged in fluids including water and oil.

Thanks to its pressure compensating system, incorporated within its design, there is no change in zero or sensitivity when the STALC3 load cell is subjected to external pressure changes. Plus, the STALC3 also features accurate temperature compensation, excellent accuracy and stability, which is essential for the type of long term testing applications in which they are used.

The standard 75mm diameter STALC3 submersible load cell is available in ranges from 0-1kN to 0-100kN. The STALC3 can also be used to measure tension if required; for rated capacities up to 5kN tension loads up to the cell’s rated capacity can be applied. For higher capacities of 10kN and upwards, tension rating is limited to 5kN as standard, however if you need to measure higher tensile forces we can manufacture customised versions on request.

Technical Specifications

Rated Capacity (RC)	kN	0-1, 0-3, 0-5, 0-10, 0-25, 0-50, 0-100
Operating Modes		Tension / Compression / Tension & Compression*
Sensitivity (RO)	mV/V	2.0 nominal (1.4 nominal on 1kN)
Zero Balance/Offset	±%/Rated Output	<5
Output Symmetry (tension vs. compression)	±%/Rated Output	<0.5 typical
Non-Linearity	±%/Rated Output (BFSL)	<0.05
Hysteresis	±%/Full Scale	<0.10
Repeatability	±%/Rated Output	<0.05
Temperature Effect on Zero	±%/Full Scale Output/ ˚C	<0.02
Temperature Effect on Sensitivity	±%/Full Scale Output/ ˚C	<0.01
Input Resistance	Ohms	750 nominal
Output Resistance	Ohms	700 nominal
Insulation Resistance	Megohms	>2000 (bridge to ground) & >1000 (shield to ground) @ 50Vdc
Excitation Voltage	Volts AC or DC	10 recommended (2-15 acceptable)
Operating Temperature Range	˚C	+5 to +50
Compensated Temperature Range	˚C	+10 to +50
Storage Temperature Range	˚C	-10 to +70
Safe Overload	% of Rated Capacity	150
Ultimate Overload	% of Rated Capacity	300
Deflection @ Rated Capacity	mm	<0.05
IP Rating (Environmental Protection)		IP68 to 7000kPa/70bar
Weight (excluding cable)	kg	0.85
Fatigue Life		10⁸ cycles typical (10⁹ cycles on fatigue-rated version)
Cable Length (as standard)	metre	3
Cable Type		4 core screened, PUR sheath, Ø4.6
Construction/Wetted Parts		Stainless Steel and Nitrile (NBR)
Resolution		1 part in 250,000 (with appropriate instrumentation)
Pressure Effect	%/Rated Output/100kPa	<0.005 typical
*Note: Load cells with a capacity of 1, 3 & 5kN can also be used in tension to their rated capacity. Where rated capacity is 10kN or higher, the maximum allowable tension load is 5kN.

Product Dimensions (in mm)

Wiring Details

Wire	Designation
Red	+ve excitation
Blue	-ve excitation
Green	+ve signal (compression)
Yellow	-ve signal
Screen	To ground – not connected to load cell body

Ordering Codes & Options

Core Product	Capacity (inc Engineering Units)	Cable Length (m)	Example Result
STALC3	1kN	003	STALC3-1kN-003-000
STALC3	3kN	003	STALC3-3kN-003-000
STALC3	5kN	003	STALC3-5kN-003-000
STALC3	10kN	003	STALC3-10kN-003-000
STALC3	25kN	003	STALC3-25kN-003-000
STALC3	50kN	003	STALC3-50kN-003-000
STALC3	100kN	003	STALC3-100kN-003-000

Downloads

CAD Model Files

Our 3D models are provided in STEP format and can be viewed using FreeCAD. Other formats can be provided on request.

The .zip file below contains a separate model for each product variant.

STALC3 STEP

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*Please note: The prices shown are valid in the UK only and do not include carriage charges. For overseas pricing please contact a member of our sales team or your local distributor.

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Submersible Load Cell for use in Triaxial Chambers | IP68 to 70bar | STALC3

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At a Glance

Description