Vishay Nobel KIS-2 20 kN Load Cell

Vishay Nobel KIS-2 20 kN Load Cell

Product Overview
The KIS-2 20 kN is a precision load cell from the Vishay Nobel KIS-2 series, designed for accurate force and weight measurement in industrial process, batching, and mechanical testing applications. It is widely used in vessel weighing, reactor weighing, hopper scales, roller weighing, and other systems where high accuracy and robust mechanical construction are required.

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Description

Vishay Nobel KIS-2 20 kN Load Cell

Technical Specifications

  • Brand: Vishay Nobel / BLH Nobel
  • Series: KIS-2
  • Rated Load: 20 kN
  • Combined Error: ±0.05% of rated output
  • Repeatability: 0.01% of rated output
  • Safe Overload: 200% of rated load
  • Ultimate Overload: 300% of rated load
  • Safe Uplift: 100% of rated load
  • Ultimate Uplift: 120% of rated load
  • Safe Side Load: 100% of rated load
  • Ultimate Side Load: 200% of rated load
  • Recommended Input Voltage: 10 V DC or AC
  • Maximum Input Voltage: 18 V DC or AC
  • Input Resistance: 350 ± 3 Ω
  • Output Resistance: 350 ± 3 Ω
  • Rated Output: 2.040 mV/V
  • Rated Output Tolerance: ±0.25% of rated output
  • Zero Balance: ±5% of rated output
  • Creep at Rated Load after 30 Minutes: ±0.03% of rated load
  • Temperature Range: -40 to +105°C
  • Temperature Effect on Output: ±0.0033% of output/°C between -10°C and +50°C
  • Temperature Effect on Zero Balance: ±0.0014% of rated output/°C between -10°C and +50°C
  • Insulation Resistance: Greater than 4 GΩ at 200 V DC
  • Protection Class: IP67
  • Certifications: ATEX, IECEx, FM, and CSA certified versions are available on request

Functional Features

  • High Accuracy: Combined error of ±0.05% of rated output supports precise process weighing.
  • Strong Mechanical Robustness: Designed to withstand large side loads and dynamic process forces.
  • Movable Load Point: Allows flexible installation while maintaining measurement accuracy.
  • High Overload Capacity: Safe overload up to 200% and ultimate overload up to 300% improve survivability.
  • Hazardous Area Compatibility: Certified versions are suitable for explosive atmospheres.
  • Low Creep: ±0.03% of rated load after 30 minutes ensures stable long-term readings.
  • Wide Temperature Range: Operates from -40°C to +105°C, with optional wider ranges available.

Application Scenarios

  • Batch weighing and mixing systems
  • Reactor and vessel weighing
  • Hopper and silo scales
  • Roller and conveyor weighing
  • Process weighing in chemical, pharmaceutical, and food industries
  • Steel mill and rolling mill force measurement
  • Industrial test rigs and mechanical load monitoring

Performance Parameters

  • Rated Load: 20 kN
  • Accuracy Class: ±0.05% combined error
  • Repeatability: 0.01% of rated output
  • Creep: ±0.03% of rated load after 30 minutes
  • Electrical Output: 2.040 mV/V
  • Input/Output Resistance: 350 Ω nominal
  • Protection: IP67
  • Temperature Stability: Compensated between -10°C and +50°C

Material Composition

  • Load Cell Body: Stainless steel
  • Bracket, Yoke, and Tilt Guard: Yellow chromate steel
  • Optional Stainless Steel Construction: Available for brackets and accessories
  • Cable: Shielded four-conductor cable, typically 5 m for Nobel version or 10 m for BLH version

Structural Features

  • Compact Column-Type Design: Suitable for integration into weighing supports and mechanical structures.
  • High Side-Load Resistance: Mechanical design tolerates lateral forces without loss of accuracy.
  • Movable Load Point: Helps accommodate thermal expansion and mechanical misalignment.
  • Sealed Construction: IP67 protection supports operation in wet, dusty, and washdown environments.
  • Shielded Cable: Reduces electrical noise interference in industrial installations.

Working Principle
The KIS-2 load cell uses a strain-gauge bridge structure. When a force is applied, the stainless-steel body deforms slightly, causing a change in resistance within the strain gauges. This resistance change produces a small millivolt-level output signal proportional to the applied load. The output is then amplified and processed by a weighing transmitter or instrumentation system to display weight, force, or process value.

Installation Requirements

  • Mount the load cell on a rigid, flat, and level support structure.
  • Ensure that the load is applied through the designated load point.
  • Avoid excessive side loads, torsion, or impact loading beyond rated limits.
  • Use appropriate mechanical stops to prevent overload during installation or maintenance.
  • Keep the cable away from moving parts, sharp edges, and high-temperature surfaces.
  • Ground the weighing system properly to reduce electrical interference.
  • In hazardous areas, use only certified versions and follow explosion-protection installation rules.

Precautions for Use

  • Do not exceed the rated load or safe overload limits.
  • Protect the load cell from welding currents passing through its body.
  • Avoid applying uplift forces beyond the specified safe uplift rating.
  • Use a suitable weighing indicator or transmitter compatible with mV/V bridge sensors.
  • Verify shunt calibration values if the system supports electrical verification.
  • Keep connectors and cable entries dry and mechanically protected.
  • For exact mechanical dimensions, cable length, and certification details, refer to the official Vishay Nobel KIS-2 datasheet.

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