Global Standards Map: Vibration Sensor Compliance & Selection Guide

Who Should Read What? (Quick Persona Guide)

• End-Users & EPC Contractors: Focus on Standards Map to confirm your project's compliance basis.
• Equipment OEMs & System Integrators: Jump to Quick-Table & OEM Protocol & Sampling Support.
• EHS & Safety Officers (Hazardous Areas): Review the Ex d Installation Warning & ATEX specs in Section 2.
• Procurement Managers: Go straight to FAQs for Lead Time, SASO/EAC, and DDP shipping details, then submit your request in Section 5.

Table of Contents

• Global Standards "Map" for Vibration Sensor Selection
• "Four-in-One" Compliance Quick-Table for Vibration Transmitters
• Vibration Sensor Installation Support for Two Customer Types
• Vibration Transmitter Selection FAQ
• Action Entry

Global Standards "Map" for Vibration Sensor Selection

Most industrial vibration monitoring projects around the world follow just three standards. These three cover more than 95% of real‑world applications. Find your project requirements below and go straight to your standard.

Looking for a complete product overview? Browse our full Industrial Vibration Sensors Catalog to compare all ISO, DIN, and Ex-certified models side by side.

Vibration Sensor Frequency Response: The First Red Line

A vibration sensor is basically a spring‑mass system. ISO 20816 requires 10 Hz – 1 kHz because rotating equipment fault frequencies (unbalance, misalignment, bearing faults) all fall in this range. Signals below 10 Hz almost always come from external structure vibration or airflow. If those get in, false alarms jump.

Similarly, construction blasting energy is concentrated at 2 Hz – 20 Hz. If you use a sensor that starts at 10 Hz, it is not a matter of accuracy — it simply cannot physically measure those low frequencies.

Ex d Flameproof Vibration Sensor Installation Warning

For Ex d flameproof installations, the sensor housing must remain intact, and the threaded connection must be properly sealed. Magnetic or adhesive mounting is strictly prohibited in hazardous areas. We provide detailed installation guidelines to ensure full compliance.

"Four-in-One" Compliance Quick-Table for Vibration Transmitters

Selecting the right vibration sensor starts with matching your application to the correct standard. The table below summarizes the three most frequently used standards — ISO 20816‑3, DIN 4150‑3, and ATEX Zone 1 — along with their critical technical requirements, available stock models, included documentation, and essential installation tips. Review the rows carefully to avoid common pitfalls.

Vibration Sensor Calibration: Single-Point Certificate Is Not Enough

Many suppliers only give a single‑point calibration at 50 Hz. But rotating equipment faults often show up at 800 Hz (early bearing spalling). Every sensor we supply ships with a 10 Hz – 1 kHz point‑by‑point frequency response curve. This ensures no sensitivity drop at high frequencies, so you do not miss high‑frequency faults.

Vibration Monitoring Additional Notes

• Frequency response mismatch is the most common selection error.
• If the calibration certificate lacks point‑by‑point frequency response, international project consultants will reject it directly.
• For OEM integration that requires protocol changes or pre‑programming, please note this in your quote request.

Vibration Sensor Installation Support for Two Customer Types

Different customers face different challenges. The table below outlines the typical concerns and our targeted support for on-site engineers and OEM integrators.

Vibration Sensor Calibration Certificate Validity and Long-Term Cost

Factory calibration certificates are valid for 1 year (international standard). After that, ISO and DIN acceptance will not accept the data chain as valid.

• Project‑based purchasers: Make sure your project timeline fits within the validity period. For multi‑year projects, allow time for return calibration and keep spare sensors.
• OEMs / integrators: We recommend including a calibration validity commitment letter with your delivery. Our calibration lab offers 3‑business‑day fast turnaround (including express return shipping, e.g., DHL/FedEx).
  Note: All our standard models support firmware write‑back of calibration data. After return calibration, we only update the coefficients — no hardware change is needed.

Vibration Transmitter Selection FAQ

Q1: My project is in Saudi Arabia / Russia. Can I directly exchange the CE certificate for SASO or EAC?

A1: No, not directly. But the CE test report (including full EMC and LVD data) can be submitted as technical background. This can reduce some duplicate testing, saving about 2 weeks and roughly 30% of local certification costs. We include a certification gap checklist and a test data CD with each shipment.

Q2: Motor surface temperature is 85–92 °C (185–197 °F). Will the sensor maintain accuracy?

A2: Yes. All models operate from –40 °C to 120 °C (–40 °F to 248 °F). 85 °C is normal.
Two things to note:

1. If the mounting surface has oil or thick paint, we include a thermal conductive silicone pad to solve heat transfer.
2. If ambient temperature exceeds 150 °C continuously, specify "high‑temp cable" and we will upgrade to stainless steel armored cable at no extra charge.
   IP68 rating means no leakage after 72 hours at 1 m underwater.

Q3: Can I buy one sample first? What protocols are supported?

A3: Yes. Standard units are available for order from 1 piece. Ship within 24 hours after payment.
We offer two output configurations: RS485 (Modbus RTU) or 4–20 mA (loop‑powered). Please select your preferred signal type when placing the order, as the hardware is pre-configured accordingly.
For Profinet, CANopen, or HART, please specify "OEM sample + protocol" and our engineers will respond within 2 working days.
Return within 15 days in original condition.

Q4: Does the output give raw signal or processed RMS? Do I need to write my own algorithm?

A4: Standard configuration: RMS calculation is done internally. The 4–20 mA output (0–50 mm/s) or RS485 digital readout gives velocity RMS and peak values directly. Just connect to your PLC analog input or poll via Modbus — no algorithm needed.
For OEM special requests (please note): We can provide raw charge/voltage output for your own system to do spectrum waterfalls, envelope demodulation, etc. Each unit includes phase response data at 10 Hz, 50 Hz, and 1 kHz.

Q5: If another supplier gives me a different selection, how do I decide?

A5:

1. Ask for that model's point‑by‑point frequency response calibration curve (not a single‑point certificate). Confirm the sensitivity deviation stays within ±5% over your required frequency range.
2. Check whether the quote includes DDP (delivered duty paid). International project customs costs are often overlooked. A quote without DDP may end up 15–25% higher overall.

Action Entry

Not sure which standard applies to you?

Send us the four items below, or visit SUCH Sensor to learn more about our factory capabilities and engineering support. We will reply within 24 hours with a Sensor Selection Pre-Approval Sheet.

Example entry:

1. 37 kW centrifugal water pump;
2. room temperature, no explosion risk;
3. ISO 20816‑3;
4. M10 thread mount

We will match you to the right standard and give specific model recommendations — no need to read through the original standards yourself.