Burster 8402 Series Technical Product Information

Miniature load cell, commissioning, function, fitting specifications

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Technical Product information
Commissioning, Function, Fitting Specifications
Model 8402
w
1. Introduction
The load cells in the model 8402 series are primarily designed for the measurement of force in
production equipment, using Newtons (N) as the unit of measurement.
The local gravitational acceleration (g ≈ 9.81 m/s²) must be taken into account when determining
masses.

2. Preparing for use

2.1 Unpacking
Inspect the sensor carefully for damage.
If you suspect that the unit has been damaged during shipping, notify the delivery
company within 72 hours. Keep all packaging materials for inspection by the
representative of the manufacturer or delivery company.
Only transport the model 8402 sensors in their original packaging or in packaging of
equivalent
qu lity
a
2.2 Using the instrument for the first time
Only connect the sensor to instrumentation amplifiers that are fitted with a safety
transformer according to EN 61558.
Note:
Transmitters connected to the outputs or other devices that are galvanically connected to the
sensor's signal lines must also be fitted with safety transformers according to EN 61558.
2.3 Grounding and potential connection
All connecting wires (including the cable screening braid) are electrically insulated from the
sensor body.
The insulation resistance between the connecting wires and the sensor body is measured.
The test certificate states that the minimum resistance is greater than
burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de
Miniature Load Cell
Model 8402
.
Technical inqueries:
(+49) 07224 / 645 - 0
- 1 -
30 M
Ω (test voltage 45 V).

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Summary of Contents for Burster 8402 Series

  • Page 1: Preparing For Use

    The test certificate states that the minimum resistance is greater than 30 M Ω (test voltage 45 V). - 1 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 2: Principle Of Operation

    DIN materials. - 2 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 3: Mechanical Design

    Special techniques are used to mount strain gauges manufactured in this way onto the surface of the spring element. - 3 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 4: Strain Gauge Wiring

    It can range up to 50 µm at max. load and is directly proportional to the load. - 4 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 5: External Forces

    Get the sensor checked out if you notice a change in the signal of 5 % or more (higher or lower) while no load is present. - 5 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 6: Installation

    • not coated in any material • must contain no holes or milled slots, this also means centering holes. - 6 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 7 The measurement signal must remain below the rated force during and after the mounting operation. - 7 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 8 Figure 5: Bond the sensor fast from above. Do not let any adhesive run underneath the sensor. - 8 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 9: Screw Fastening

    Figure 6: Sensor 8402 with mounting plate; there must be a minimum gap of 0.5 mm between measuring element and mounting plate. - 9 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 10: Electrical System, Evaluation Instrumentation

    In some cases it will be helpful to place an extra shield as additional protection over the measuring cable, or to lay it in a metal tube or pipe - 10 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 11: Measuring Chain Adjustment

    If desired, we can prepare factory calibration or recalibration certificates for the sensor or for the entire measuring chain. These measurements are carried out at the factory on measurement installations. - 11 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...
  • Page 12: Adjustment Using A Precision Voltage Source

    595-008402EN-5170-051515 - 12 - burster präzisionsmesstechnik gmbh & co kg ■ Talstr. 1-5 ■ 76593 Gernsbach ■ Tel.: (+49) 07224-6450 ■ www.burster.de ■ info@burster.de...

Table of Contents