Calibration of your HV service tools
Work safely and in compliance with standards, ensure maximum device availability and minimize downtime – with calibration and service directly from the manufacturer.
Precision is not optional – it's mandatory
High-voltage systems in modern electric vehicles require the highest measurement accuracy. Without valid calibration, you put your team, your customers and your business at risk.
Safety
Correctly calibrated devices protect your team when working on HV systems with voltages of up to 800 volts.
Compliance
Compliance with calibration intervals is a mandatory group requirement and is verified during audits.
Precision
Only precise measurement values ensure reliable testing and repair of HV batteries and components.
Affected HV service tools
These devices are subject to mandatory calibration requirements according to the Volkswagen Group's test equipment monitoring list.
VAS 6910
Battery Balancer – Test and service device for HV battery repairs
VAS 6910A
Battery Balancer – Test and service device for HV battery repairs
VAS 6558A
HV measurement module – safe work on high-voltage systems
VAS 6558B
HV measurement module – safe work on high-voltage systems
VAS 6972
Dielectric strength tester – insulation testing after HV battery repairs
Our calibration and refurbishment service is available for all AVL DiTEST VAS devices. Request calibration →
The right solution for your business
Whether all-inclusive service, one-time exchange or individual calibration – as the manufacturer of your devices, we offer the solution that fits.
All-Inclusive Service
- Monitoring of calibration intervals by AVL DiTEST
- Regular calibration with complete refurbishment
- Comprehensive functional testing of the device
- Audit-compliant documentation of each calibration with a factory calibration certificate
- Advance delivery of a ready-to-use exchange device
- Extended warranty for the entire contract period
- In case of failure: exchange device provision within up to 48 hours (EU and USA). For other countries, delivery times may vary due to customs and transport times.
- A fixed service fee covers all services – full predictability, no additional costs
One-Time Exchange Service
- Calibrated and fully refurbished exchange device
- Comprehensive functional testing of the device
- Audit-compliant documentation of each calibration with a factory calibration certificate
- Immediately ready for use with Plug & Play
- Flexible solution without contractual commitment
Calibration of Customer Device
- Send your device to our service center
- Internal processing time approx. 5 working days (plus shipping)
- Comprehensive functional testing of the device
- Audit-compliant documentation of each calibration with a factory calibration certificate
Plug & Play – zero downtime
You receive a ready-to-use device before sending back your current one. Your workshop remains fully operational at all times – in Germany, across Europe and worldwide.
Receive exchange device
We send you a calibrated, fully refurbished device in secure shuttle packaging. Simply unpack and install.
Return your current device
Pack your current device in the supplied packaging. Return label included – simply hand over to the logistics partner.
Professional service
Your device is calibrated, fully refurbished and brought up to the latest technical standard – ready for the next deployment.
Highest quality standards – guaranteed by the manufacturer
As the manufacturer, we calibrate using the same test procedures as in production. In our own calibration laboratories in Germany and the USA, we ensure precision and traceability.
Own calibration laboratories – internationally positioned
Multiple independent calibration laboratories at locations in Germany and the USA with an experienced team of specialists. Customers worldwide benefit from our exchange and calibration service.
Technical refurbishment included
Every device is professionally cleaned, technically inspected, updated to the latest firmware and comprehensively refurbished.
Audit-compliant documentation
Each calibration is documented with a factory calibration certificate. The certificate serves as traceable proof of calibration and can be used for audits and quality management.



How can we help you?
Choose the right option – we will get back to you promptly.
Technical Question
Do you have questions about devices, calibration intervals or procedures? Our FAQs provide answers to the most frequently asked questions.
View FAQsQuestion not listed? Submit a technical inquiry →
Request Calibration
Request your calibration now and receive a customized offer from our sales team.
Request CalibrationFrequently asked questions
HV service tools such as the VAS 6910 or VAS 6558A/B are used for safety-critical measurements on high-voltage systems. Regular calibration ensures that measurement results are precise and reliable. Without valid calibration, incorrect readings can lead to improper repairs and endanger personnel.
According to the Volkswagen Group's test equipment monitoring list, the devices VAS 6910, VAS 6910A, VAS 6558A, VAS 6558B and VAS 6972 must be calibrated. We also offer the service for all AVL DiTEST VAS devices.
Initial calibration is due after 36 months, all subsequent calibrations every 24 months. Exception: For the VAS 6972, initial calibration is required after 24 months, with subsequent calibrations also every 24 months. All intervals are mandatory and are verified during group audits.
Calibration includes the complete verification and adjustment of all measurement functions – including voltage, resistance and leakage current measurement. Additionally, a firmware check is performed, the device is professionally cleaned and subjected to a comprehensive functional test.
Factory calibration is performed according to internal manufacturer standards. For the described HV service tools (VAS 6910, VAS 6558A/B, VAS 6972), we exclusively offer factory calibrations. You receive a documented factory calibration certificate for each calibration.
With the All-Inclusive Service or exchange service, you receive a ready-to-use exchange device in advance. You install it via Plug & Play and return your current device in the supplied shuttle packaging. For individual calibration, you send in your device. Internal processing time at AVL DiTEST is approx. 5 working days (from goods receipt to dispatch). Shipping times are additional depending on location.
Not if you use our exchange concept or the All-Inclusive Service. In both cases, you receive a ready-to-use exchange device in advance. Operational downtime is therefore excluded.
Germany and EU: AVL DiTEST handles the complete shipping process. International customers outside the EU: AVL DiTEST organizes the return shipment to the customer. The shipment of the device to AVL DiTEST is arranged by the customer. Devices are transported in special shuttle packaging designed for the safe shipment of sensitive test equipment.
Yes. Each calibration is documented with a factory calibration certificate. This serves as traceable proof for auditors and in quality management.
As part of the refurbishment, your device is completely overhauled: professional ultrasonic cleaning, technical update to the current standard, calibration and comprehensive functional testing. The result: a technically fully tested and professionally refurbished device.
The service fee depends on the selected service model and device type. With the All-Inclusive Service, all services – regular factory calibrations, extended warranty, repairs and permanent device availability – are included in a fixed fee. We are happy to provide you with a customized offer. Please use our request form.
Yes. With the All-Inclusive Service, you receive an extended warranty for the entire contract period. In case of failure, we provide an exchange device within up to 48 hours (EU and USA). For other countries, delivery times may vary due to customs and transport times.
Ricarda-Sofie Meyer
International Service Manager
Aftersales
Get in touch
Fill in the appropriate form – our team will contact you promptly.
Do you have questions about calibration, devices or intervals? Our technical team is happy to assist you.
Request your calibration – we will promptly provide you with a customized offer.