Views: 222 Author: Leah Publish Time: 2025-03-11 Origin: Site
Content Menu
● 1. Understanding FMS Tension Sensor Calibration
● 2. Pre-Calibration Requirements
● 3. Step-by-Step Calibration Procedures
>> 3.1 Weight-Based Calibration (Recommended)
>> 3.2 Calculation-Based Calibration (EMGZ306A.CAL)
● 4. Post-Calibration Validation
● 6. Troubleshooting Common Issues
● FAQ
>> Q1: How often should FMS tension sensors be recalibrated?
>> Q2: Can I use compression calibration for tension sensors?
>> Q3: What causes signal drift in FMS sensors?
>> Q4: How do I calculate the nominal force (FNom)?
>> Q5: Is the EMGZ306A.CAL suitable for rotating machinery?
Accurate tension measurement is critical in industrial applications ranging from textile manufacturing to wire processing. FMS tension sensors provide reliable force monitoring, but proper calibration ensures precise results. This guide covers calibration methods, tools, and best practices for FMS systems, supported by technical diagrams, video demonstrations, and step-by-step workflows.
FMS tension sensors measure force through load cells and analog/digital amplifiers like the EMGZ306A.CAL. Calibration aligns the sensor's output with applied forces, accounting for mechanical configurations and environmental factors. Two primary methods exist:
- Weight-based calibration (higher accuracy)
- Calculation-based calibration (convenient but less precise)
FMS Tension Sensor Setup Typical FMS tension sensor installation with load cells and amplifier[1][5].
- FMS tension sensor (e.g., RMGZ400B/600B)
- Calibration weight (for weight-based method)
- Multimeter or oscilloscope
- FMS Calculator software (V2.0 or newer)[1][6]
- Shielded twisted-pair cables
- Verify wiring matches the terminal diagram (Fig. 4 in[1]).
- Ensure sensor alignment follows the red point direction to avoid centrifugal errors[7].
- Ground shielding only at the amplifier side to prevent electrical interference[7].
Step 1: Initial Setup
- Mount the sensor on a DIN rail or machine frame[1].
- Connect load cells to terminals 10/11 using shielded cables[1][7].
- Loosely insert material/rope into the system.
Step 2: Offset Adjustment
- Adjust the offset trimmer until the output reads 0V (voltage) or 4mA (current)[1][6].
Step 3: Apply Calibration Weight
- Suspend a known weight (e.g., 500N) on the material (Fig. 8 in[1]).
- Adjust the gain trimmer until the output matches the expected value (e.g., 10V for 500N)[1][5].
Video Demonstration:
Calibrating a Force Transducer with LabChart
Step 1: Calculate Gain Using FMS Calculator
- Input sensor geometry, wrap angle (γ), and nominal force (FNom) into the software[1][9].
- Generate the target output voltage (e.g., 4.5mV simulated via the CAL button)[1].
Step 2: Adjust Gain Potentiometer
- Press the CAL button and tune the gain until the output matches the calculated voltage[1][6].
Note: This method has ±1% lower accuracy than weight calibration[1].
- Test the sensor with incremental loads to verify linearity.
- Confirm the red point alignment shows zero when unloaded[7].
- Recalibrate annually or after mechanical shocks[4][8].
- Configure jumpers/solder bridges to reduce signal noise (Fig. 6–7 in[1]).
| Output Type | Jumper Settings | Applications |
|---|---|---|
| 4–20mA (Default) | X1/X2 | Industrial automation |
| 0–20mA | X3/X4 | Legacy systems |
- No Signal: Swap signal wires at terminals 10/11[1].
- Drifting Output: Check for loose shielding or ground loops[7].
- Incorrect Readings: Re-verify red point alignment[7].
Calibrating FMS tension sensors ensures measurement integrity across industries. While weight-based calibration delivers superior accuracy, the EMGZ306A.CAL's calculation method offers convenience for field adjustments. Annual recalibration, proper shielding, and alignment checks are critical for long-term reliability.
A1: Annual recalibration is recommended by NIST and FUTEK, though harsh environments may require shorter intervals[4][8].
A2: No—dual-direction calibration is required for sensors measuring both tension and compression[4].
A3: Ground loops, improper shielding, or mechanical misalignment are common culprits[1][7].
A4: Use the FMS Calculator with parameters like wrap angle and roller configuration[1][9].
A5: Yes—use the compound-filled EMGZ306A.581820 variant with solder bridges for vibration resistance[1].
[1] https://manuals.plus/fms/emgz306a-compact-analogue-tension-measuring-amplifier-manual
[2] https://www.mit-tester.de/wp-content/uploads/2023/11/MIT_FMS-Force-Measuring-System_T2023-06.pdf
[3] https://www.youtube.com/watch?v=_8jPupKtD0M
[4] https://www.futek.com/calibration-services-FAQ
[5] https://www.fms-technology.com/fileadmin/import/amplifier-product_group/operating_manual_EMGZ492_ECAT_EN.pdf
[6] https://www.fms-technology.com/fileadmin/import/tension_controller-product_group/Bedienungsanleitung_CMGZ309EIP_EN.pdf
[7] https://manuals.answerbase.com/5597053/How-do-I-properly-install-the-FMS-Force-Measuring-Roller-for-Tension-Measurement
[8] https://www.strainsert.com/faq-on-force-sensor-calibration/
[9] https://www.fms-technology.com/en/faq
[10] https://www.fukase-eng.jp/pages/155/
[11] https://fcc.report/FCC-ID/YXYEMGZ482R/1526905.pdf
[12] https://www.nordela.se/ws_media/pdf/FMS%20EMGZ%20307_e_Manual.pdf
[13] https://www.youtube.com/channel/UCN9chHYredDxRIjXgcNQ2mA
[14] https://www.fms-technology.com/fileadmin/import/discontinued-discontinued/operating_manual_EMGZ300_EN
[15] https://www.fms-technology.com/en/our-solutions/web-tension/amplifiers
[16] https://www.fms-technology.com/en/productfinder/detail/force-sensor/ZMGZ
[17] https://www.fatihotomasyon.com.tr/images/pdf/c203loadcell.pdf
[18] https://www.nordela.se/ws_media/pdf/FMS%20F%C3%B6rst%C3%A4rkare_e.pdf
[19] https://www.fms-technology.com/fileadmin/import/discontinued-discontinued/operating_manual_EMGZ421_EN
[20] https://www.nordela.se/ws_media/pdf/FMS%20EMGZ%20473-474_e_Manual.pdf
[21] https://www.fms-technology.com/fileadmin/user_upload/Dokumente/FMS_wire_cable.pdf
[22] https://www.bibus.cz/fileadmin/editors/countries/bisro/downloads/P%C5%98EV%C3%8DJEN%C3%8D_A_MANIPULACE/FMS/FMS_Paper_e.pdf
[23] https://www.bibus.cz/fileadmin/editors/countries/bisro/downloads/P%C5%98EV%C3%8DJEN%C3%8D_A_MANIPULACE/FMS/FMS_Converting_e.pdf
[24] https://www.nordela.se/ws_media/pdf/FMS%20Lastgivare_e.pdf
[25] https://www.fms-technology.com/fileadmin/import/discontinued-discontinued/operating_manual_CMGZ431_EN.pdf
[26] https://umformtechnik.net/wire/Content/Reports/Control-of-wire-tension
