calibration instrument for all types brake tester
instruction of roller brake tester& axle load cali...
Product Overview
The Calibration Instrument for Brake Testers is a universal
calibration device designed for verifying the accuracy and
performance of various types of brake testing equipment, including:
Roller Brake Testers
Plate Brake Testers
Deceleration (Road) Brake Testers
This calibration instrument simulates known braking forces and
loads to ensure that the measurement systems (sensors, electronics,
and software) of the tester produce reliable and traceable results.
It typically includes mechanical loading systems, force meters,
standard weight dummies, and alignment tools.
Key Features:
Compatible with multi-type brake testers (roller, plate,
deceleration)
Mechanical or hydraulic force simulation structure
High-precision force sensor or torque meter (accuracy ≤ ±1%)
Adjustable mounting and alignment fixtures
Traceable calibration certificate from a metrology authority
(optional)
How to Use
1. Preparation
Ensure the brake tester is clean, functional, and set to
calibration or maintenance mode.
Place warning signs or barriers to prevent unintended use during
calibration.
2. Install the Calibration Instrument
For Roller Brake Testers: Mount the calibration lever or torque arm
onto the roller shaft.
For Plate Testers: Place the calibration force sensor or weighted
load on the test plate.
For Deceleration Testers: Use the dynamic simulator to apply
reference braking force.
3. Apply Known Force
Use the calibration device to apply a known force or torque (e.g.,
1,000 N or 2,000 Nm) to the brake system.
Record the brake tester’s reading and compare it with the actual
applied value from the calibration instrument.
4. Compare and Adjust
Calculate the error or deviation.
If the deviation exceeds allowed tolerance (e.g., ±3%), adjust the
tester’s internal calibration parameters (software scaling, sensor
offset, etc.).
Repeat the test until the measured values match the reference
values.
Why Calibration Is Necessary
1. Ensure Brake Test Accuracy
Accurate brake force measurement is critical for evaluating vehicle
safety. Without proper calibration, the tester may under- or
over-report braking power, leading to incorrect assessments.
2. Comply with Legal and Technical Standards
National and international standards (e.g., GB21861, ISO 21069, EU
2014/45) require periodic calibration of all brake testers to
remain legally valid for vehicle inspection.
3. Detect Sensor Drift or Mechanical Wear
Over time, sensors and mechanical components may degrade.
Calibration helps identify such changes and prevent undetected
errors.
4. Provide Traceable and Auditable Results
For inspection centers and commercial garages, calibration records
provide traceable evidence of compliance and reliability during
audits or certification processes.
Recommended Calibration Package
1 × Multi-Type Brake Tester Calibration Instrument
1 × Precision Force/Torque Sensor (0–5000 N or 0–5000 Nm)
1 × Weight Dummy Set (for load simulation)
1 × Mounting/Alignment Kit
1 × Calibration Logbook (digital or printed)
Optional: Traceable Calibration Certificate
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in wooden case per set
Q2. What is your terms of payment?
A: T/T 50% as deposit, and 50% before delivery. We'll show you the
photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: EXW, FOB
Q4. How about your delivery time?
A: Generally, it will take 10 or 30 days after receiving your
advance payment. The specific delivery time depends on the items
and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We
can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but
the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our
customers benefit ;
2. We respect every customer as our friend and we sincerely do
business and make friends with them, no matter where they come
from.
