Platform Load Cell | Single Point Load Cell | 0-250g to 0-40kg | OBUG

Outstanding Accuracy, Lightweight and Low Cost, Low Range Compression Measuring

Lead Time
1 - 2 weeks
Prices From
£111
Accelerated delivery available
Customizable
Quantity, OEM & educational discounts
3D CAD models available

At a Glance

  • Capacities: 0-250g up to 0-40kg
  • Output: 2mV/V
  • Environmental Protection: IP65 (2kg and below)
  • Environmental Protection: IP67 (3kg and above)
  • High Accuracy: <±0.03%/RC
  • Customised Versions Available
  • ATEX Certificate: EEx ia IIC T4
  • Designed for Low Range Measurement Applications
  • Ideal in Weighing Scales
  • Suitable for Industrial Environments
  • Ideal for Retrofitting
  • Lightweight & Low Cost
  • High Accuracy Guaranteed
  • Customised Versions to Suit Your Application
  • Immersion Protection up to 1m on Request

Description

Applied Measurements low profile single point platform load cell OBUG is designed for use in weighing scales and a wide selection of low range force measurement applications such as manufacturing, testing, research and development.  It is primarily designed for compression measurements, but it can also measure tension loads, or it can be used bi-directionally.

The dual cantilever design of the single point platform load cell makes them insensitive to bending moments and also offers extremely high accuracy and stability, while aluminium construction ensures light weight and low cost.

Applied Measurements can provide customised versions of the single point platform load cell with dimensions and fixings to allow direct retro-fitment in place of obsolete products or to suit specific applications are available on request.

We selected the OBU series load cells from Applied Measurements because they provide us with the accuracy, long term stability and environmental protection that our weighing systems require – at an excellent price.

Mark Thorp, Technical Director at C.F Whaler Ltd, UK, 14/May/2015 OBU single point load cells May 14, 2015

Technical Specifications

CHARACTERISTICSOBUGOBUGOBUCUNITS
Rated Capacity (RC)0-0.25, 0-0.5, 0-1, 0-20-3, 0-5, 0-10, 0-15, 0-20, 0-30, 0-400-10, 0-15, 0-20, 0-30, 0-50, 0-100, 0-200kgf
Operating ModesCompression only
Sensitivity (RO)1.5 nominal2±10%2±10%mV/V
Maximum Platform Dimensions200 x 200350 x 350400 x 400mm
Zero Balance/Offset<1<1<10±%/Rated Output
Creep (30 mins)<0.08<0.03±%/Rated Capacity
Non-Linearity<0.03±%/Rated Capacity
Hysteresis<0.02%/Rated Capacity
Repeatability<0.02±%/Rated Capacity
Temperature Effect on Zero<0.005<0.002<0.006±%/Rated Capacity/˚C
Temperature Effect on Sensitivity<0.015<0.002<0.015±%/Applied Load/˚C
Effect of Eccentricity<0.015<0.006±%/Rated Capacity/cm
Input Resistance400 nominalOhms
Output Resistance350 nominalOhms
Insulation Resistance>2000 @ 50VdcMegohms
Excitation Voltage10 recommended (2-15 acceptable)Volts AC or DC
Operating Temperature Range-20 to +70˚C
Compensated Temperature Range-10 to +40˚C
Storage Temperature Range-20 to +70˚C
Safe Overload150% of Rated Capacity
Ultimate Overload300% of Rated Capacity
Deflection @ Rated Capacity<0.5 nominalmm
Resonant FrequencyConsult Sales Team
IP Rating (Environmental Protection)IP65: 2kg and below | IP67: 3kg and above
Weight (excluding cable)See dimension table
Fatigue Life108 cycles typical (109 cycles on fatigue-rated version)
Cable Length (as standard)0.50.43metres
Cable Type4 core screened, PVC sheath4 core screened, PVC sheath,6 core screened, PVC sheath,
ConstructionAluminium Alloy
Resolution1 part in 250,000 (with appropriate instrumentation)

Product Dimensions

OBUG Single Point Platform Load Cell Outline Drawing
Capacity (kg)
A
B
C
D
F
G
H
L
Q
V
X
J
Weight (kg)
0,25, 0.5, 1, 2
70
15
22
46
58
-
7
6
12
-
0.5
M3x0.5 - 22 deep
0.07
3, 5, 10, 15, 20, 30
130
25.4
22
80
106
-
15
12
25
-
0.4
M6x1 - 22 deep
0.20
40
130
30
22
80
106
-
15
12
25
-
0.4
M6x1 - 22 deep
0.24

All dimensions are in mm

Wiring Details (Capacities of 2kg and Lower)

WireDesignation
Red+ve excitation
Blue-ve excitation
Green+ve signal
Yellow-ve signal
ScreenTo ground – not connected to load cell body

Wiring Details (Capacities of 3kg to 40kg)

WireDesignation
Red+ve excitation
Black-ve excitation
Green+ve signal
White-ve signal
ScreenTo ground – not connected to load cell body

Ordering Codes & Options

Core ProductCapacity (inc Engineering Units)Cable Length (m)Specials CodeExample Result
OBUG0.25kg0.5000OBUG-0.25kg-0.5-000
OBUG0.5kg0.5000OBUG-0.5kg-0.5-000
OBUG1kg0.5000OBUG-1kg-0.5-000
OBUG2kg0.5000OBUG-2kg-0.5-000
OBUG3kg0.4000OBUG-3kg-0.4-000
OBUG5kg0.4000OBUG-5kg-0.4-000
OBUG10kg0.4000OBUG-10kg-0.4-000
OBUG15kg0.4000OBUG-15kg-0.4-000
OBUG20kg0.4000OBUG-20kg-0.4-000
OBUG30kg0.4000OBUG-30kg-0.4-000
OBUG40kg0.4000OBUG-40kg-0.4-000

Published Sensor Application Articles

Below is a published sensor application paper that shows you how the OBUG platform load cell could be used in a specific application.  See our published sensor application articles page for many more.

An experimental investigation of tsunami forces on coastal structures

Lloyd, TO; (2016) An experimental investigation of tsunami forces on coastal structures. Doctoral thesis, UCL (University College London). Available as open access.

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.

Case Studies

How to Improve Aerodynamics with our Single Point Load Cells and Digital Indicators

Scale Engineering Wind Tunnel

The Scale Wind Tunnel uses two single point load cells and Intuitive2-L digital indicators enabling students to test the aerodynamics of scale models. Read how they did it.
Read more...

Single Point Load Cells Help Farmers Balance the Scales

front page obug pyramid

The Challenge – Design a weighing system to accurately measure the weight of birds maximising poultry farming profitability. Poultry farmers need to accurately weigh the birds to ensure they meet the correct specification and adjust the bird feed mix accordingly.
Read more...

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