Miniature-In-Line-Load-Cell

Miniature In-Line Load Cell

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Description

Applied Measurements DDE miniature in-line load cell is suitable for use in both tension and compression and offers a very low profile body coupled with integral mounting threads to allow use in applications with restricted mounting space where other in-line load cell designs such as S-Beam load cells are too large.

The DDE’s small size means that weight is kept to a minimum, this, in conjunction with its low deflection, results in a high stiffness assembly and makes the load cell suited to the measurement of fast changes in load and high-frequency transients.

The DDE miniature in-line load cell is currently being used in many applications including automotive production, cable tension monitoring and suspension force monitoring.  Customised versions with different thread sizes, specific dimensions and interim capacity can also be provided if required.

Product Dimensions (mm)

DDE Miniature In-Line Load Cell Outline Drawing
CAPACITY (N)
A
B
C
D
 Deflection mm Resonant Frequency kHz
100 50 15 20 M12 0.10 0.53
250 50 15 20 M12 0.10 0.84
500 50 15 20 M12 0.07 1.42
1000 50 15 20 M12 0.05 2.37
2500 50 15 20 M12 0.03 4.84
5000 50 15 20 M12 0.02 8.39
10000 50 12.5 25 M12 0.04 13
20000 50 12.5 25 M12 0.04 18
50000 56 18 20 M16 0.03 25

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

Features

  • Capacities: 0-100N up to 0-50kN
  • Output: 2mV/V
  • Environmental Protection: IP65
  • Accuracy: <±0.30%/RC
  • Low Profile Design

Spesification

Rated Capacity (RC) N 0-100, 0-250, 0-500, 0-1000, 0-2500, 0-5000, 0-10000, 0-20000, 0-50000
Operating Modes Tension/Compression / Tension & Compression
Sensitivity (RO) mV/V 2.0 nominal (1.2 approx on 100N)
Zero Balance/Offset ±%/Rated Output <1.0
Output Symmetry (tension vs. compression ±%/Rated Output <1
Non-Linearity ±%/Rated Output <0.3
Hysteresis ±%/Rated Output <0.3
Repeatability ±%/Rated Output <0.2
Temperature Effect on Zero ±%/Rated Output/ ˚C <0.005
Temperature Effect on Sensitivity ±%/Applied Load/ ˚C <0.005
Input Resistance Ohms 750 nominal
Output Resistance Ohms 700 nominal
Insulation Resistance Megohms >5000 @ 50Vdc
Excitation Voltage Volts AC or DC 10 recommended (2-15 acceptable)
Operating Temperature Range ˚C -20 to +80
Compensated Temperature Range ˚C 0 to +70
Storage Temperature Range ˚C -20 to +80
Safe Overload % of Rated Capacity 150
Ultimate Overload % of Rated Capacity 200
Maximum Allowable Sideload % of Rated Capacity <5
Deflection @ Rated Capacity mm See dimensions table
Fundamental Resonant Frequency* kHz See dimensions table
IP Rating (Environmental Protection) IP65
Weight (excluding cable) grams 150 nominal
Fatigue Life 108 cycles typical (109 cycles on fatigue-rated version)
Cable Length (as standard) metres 2
Cable Type 4-core + screen, PVC sheath, Ø3.5 typical
Construction Stainless Steel
Resolution: 1 part in 250,000 (with appropriate instrumentation)
*The resonant frequency is calculated with the body of the load cell attached to a large plate, ensuring that only the sensing element oscillates: This is vital to achieve the highest natural frequency and subsequent frequency response.

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