Ref: ALW

Bolt force sensor - M4 to M38 - 0-20N to 0-133 kN - IP64

  • Load washer force transducer
  • For measuring compression forces on bolted assemblies
  • Measuring range: 0-20N, 0-40N, 0-100N, 0-200N, 0-450N, 0-1,1kN, 0-2,2kN, 0-4,5kN-0-9kN, 0-20kN, 0-32kN, 0-45kN, 0-90kN, 0-135kN
  • Inside diameter: M4 to M38
  • Dimensions: Ø 25.4 x 7 mm to Ø 76.2 x 25.4 mm
  • Non-linearity: 0.5% PE
  • Accuracy class: 1%.
  • Operating temperature : -15 to +80 °C
  • Output: 0.2mV/V (20N), 0.4mV/V (45N), 1mV/V (110N), 2mV/V (>220N)
  • Construction: IP64 stainless steel
  • Output: 1m, 2m or 3m cable as standard
  • 5pts compression calibration certificate included

Download the product sheet

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Presentation

The ALW load washer is a robust, cost-effective solution for measuring the compression force of bolted assemblies with bolt diameters from M3 to M38. Accuracy is around 1% of full scale.

Available in a wide range of size/capacity combinations, the ALW features robust design (stainless steel, IP 64, 150% overload protection) with an operating temperature range from -20 to 80°C.

Dimensions and versions available

Operation

5 or 10VDC power supply. Unamplified output signal. Default connection: 1 x 3m cable.

GSV conditioning modules are recommended for output signal conditioning:

Electrical connections

Applications

  • Clamping force measurement
  • Pre-stress measurement on bolted assemblies

Options and accessories

  • Temperature compensation extension
  • Cable length
  • Calibration
  • TEDS plug
  • Conditioning module
  • Display
  • Acquisition system
Type
Load washer
Measuring Range
30kN , 60kN , 15kN , 80kN , 120kN , 160kN
Precision (max error)
> 1 %
Nonlinearity (% FS)
± 2% %
Hysteresis
2 % FS
Nonrepeatability
0.3 % FS
Temperature Compensated Range
-15 to 70 °C
Température de fonctionnement
-20 to 80 °C
Zero Balance
0.03 %PE/°C
Sensibilité du gain
0.03 %/°C
Analog output signal
non-amplifié
Output Signal
1 mV/V
Résistance du pont
350 Ω
Tension d'alimentation
10 Vcc
Measurement direction
Compression
Déflection
- mm
Surcharge
150 %PE
Protection Class
IP65
Measuring Range (Force)
100 - 250 kN
Application
OEM, low cost

Dimensions

Electrical connections

3m Cable

Pin Description Wire color
+Us Supply + red
-Us Supply - black
+Ud Output + green
-Ud Output - white

Options and accessories

  • extended compensation temperature area
  • cable length
  • calibration
  • TEDS module
  • Amplifier, display
  • Acquisition module

Amplifier / Display

Acquisition module

  • 1 channel: GSV-2AS (RS-232/485 or CANopen) or GSV-3USB (1 or 2 USB channels)
  • 4 channels GSV-4USB (USB)
  • 6 channels GSV-6BT (Bluetooth) or GSV-6LTE (LTE Datalogger)
  • 8 channels GSV-8DS (LAN / WiFi / USB / EtherCAT / CANRS-232)

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