Main Menu
- Home
- Product Finder
- Calibration Systems
- Calibration Services
- Digital Sensing
- Industrial Vibration Calibration
- Modal and Vibration Testing
- Sound & Vibration Rental Program
- Non-Destructive Testing
- Learn
- About Us
- Contact Us

Protect the performance of your laboratory calibration system and avoid downtime with ongoing service and support from The Modal Shop. Service Contracts are available for Precision Sensor Calibration Workstation Model 9155D and can be configured to meet your calibration, support, and training needs.
A Service Contract helps extend support beyond the initial warranty period while maintaining the calibration and performance of critical system components.
Configure your Service Contract around the way your calibration system is used and maintained.
Maintains the lowest system uncertainty and is appropriate for systems originally calibrated using a primary method
or
A lower-cost calibration option with higher uncertainty
Provides flexibility with an annual renewal cycle
or
Easier financial planning, discounted pricing available if paid at the outset
Includes system testing and on-site training/retraining
or
Lower-cost option
Additional Training available for any system, inquire for quote
Priority remote support included by phone, email or video call
Calibrated equivalent equipment provided
or
Available at a reduced contract cost
Loaners available in case of equipment failure
Depending on the Service Contract configuration, benefits include:
The calibration method you select should be based on the requirements of your calibration system and its uncertainty budget.
Primary vibration calibration is an absolute calibration based on laser interferometry. It provides the lowest uncertainty and follows the primary methods described in ISO 16063-11. New 9155 systems are provided with a primary calibration.
If your system was originally supplied with an uncertainty budget based on a primary calibration method, the Primary Service Contract option should be selected to maintain the system's uncertainty performance over time.
Secondary vibration calibration is a lower-cost service option, but it results in higher uncertainties. It may be appropriate for systems where the additional uncertainty is acceptable.
For covered key calibration equipment, The Modal Shop provides calibrated equivalent equipment as a loaner before your equipment is returned for calibration. This allows the calibration system to remain operational while the original components are being calibrated.
Loaner equipment is calibrated using a Primary method, and shipping labels are provided for returning the equipment to The Modal Shop.
Customers who prefer to manage the equipment swap without a loaner can select the No Loaner (-NL) option to reduce contract cost.
Key calibration-related equipment included with the covered system may include:


Covered equipment receives extended warranty protection and annual calibration according to the Service Contract.
Some components remain with the calibration system and are not returned annually for calibration. These include the Daily Verification Sensor, Air Bearing Shaker body, and Unity Gain Source Follower. These components have specific maintenance and service considerations.
Service Contract options that include an annual visit provide an on-site visit from a The Modal Shop Application Engineer. The visit is typically one day for most systems and includes:
The timing of the visit can be coordinated around your annual calibration. For example, the visit can take place after the calibrated equipment has been returned, shortly after loaner equipment arrives, or at another time during the service period.
Additional training or days can be added for an additional charge.
We also invite you to join our Interlaboratory Comparison (ILC) Program at no charge. Proficiency testing is covered by standard ISO 17043. This ILC participation is an integral part of ISO 17025 accreditation of your lab. Service Contract holders can request participation in our program as needed.
For example, a 3-year Primary Service Contract with an annual visit is Service Code 9155-SC-PV3
9155-SC-ABC-D

A Service Contract provides more than an annual calibration. It gives your team ongoing access to The Modal Shop's calibration expertise, calibrated equipment, software support, and application engineering resources.
A Service Contract provides continued support after the initial warranty period and helps keep your calibration system operating as expected. It combines annual calibration of key components with options for calibrated loaner equipment, extended warranty coverage, software updates, technical support, and on-site training.
If your 9155 system was originally supplied with an uncertainty budget based on a Primary vibration calibration, The Modal Shop recommends selecting the Primary Service option to maintain the system's uncertainty performance.
A Secondary Service option can reduce service costs, but it results in higher uncertainties.
Primary vibration calibration is an absolute calibration based on laser interferometry and provides the lowest uncertainty. Secondary calibration is a lower-cost alternative with higher uncertainty.
The appropriate choice depends on your system's requirements and the uncertainty you need to maintain.
No. Service Contracts are available with or without an included annual visit.
An annual visit provides system testing and on-site training/retraining. Customers who do not need an on-site visit can select the no-visit option to reduce the cost of the Service Contract.
No. Calibrated loaner equipment is provided with applicable Service Contract options to minimize system downtime, but the loaner can be omitted to reduce contract cost.
When a loaner option is included, calibrated equivalent equipment is sent before your original equipment is returned for annual calibration. This allows your calibration system to remain operational during the calibration process.
The Modal Shop provides shipping labels for returning the equipment.
The Daily Verification Sensor is used to perform a system stability check at the start of each day the calibration system and associated exciter are used.
Daily verification is important because comparing results over time can help identify problems ranging from unexpected electronic issues to physical problems with an insert. Daily verification also provides an important reference when equipment is exchanged during annual calibration.
The Daily Verification Sensor does not need to be sent to The Modal Shop for annual calibration. It is calibrated each day when the daily verification process is performed.
The Air Bearing Shaker body is generally not returned for annual calibration. However, certain issues may require it to be returned to The Modal Shop for service.
Damage resulting from misuse, abuse, accidental damage, unauthorized intervention, or other conditions beyond normal wear and tear may result in additional charges, even when the system is covered by a Service Contract.
No. The 9155D System Controller hardware is not included in the extended warranty provided by the Service Contract.
However, Service Contract customers can receive discounted controller replacement or repair, when repair is possible.
When a new controller is purchased, The Modal Shop can provide the appropriate system configuration and integration. For Service Contract customers, system integration with a new controller is included at no additional charge and typically includes installation of 9155 software, migration of the 9155 database, and performance verification.
The Modal Shop can supply a replacement controller configured for your 9155 system. Controllers purchased from The Modal Shop include Windows 11, Microsoft Office, 9155 software, related drivers, and existing database integration.
If you purchase a controller independently, contact The Modal Shop first for the required hardware and software specifications. Service Contract customers still receive system integration at no additional charge with a new controller.
Operating system updates are not provided by The Modal Shop, but keeping the operating system current is important for security, performance, and risk management.
Current versions of 9155 software operate on Windows versions through Windows 11. Older versions of 9155 software may require an upgrade before moving to Windows 11. Service Contract customers are eligible for 9155 software upgrades at no charge.
Software versions before 9155 v7.0 have not been tested with Windows 11, so customers should contact The Modal Shop to confirm compatibility before upgrading.
Yes. Training is available for systems without a Service Contract or for Service Contract options that do not include an annual training visit. Additional training can also be added to an included annual visit for an additional charge.
The annual visit can be scheduled at a time that best fits your operation. Common approaches include:
The Modal Shop can coordinate the visit based on your equipment, personnel, and training needs.
Before a visit, The Modal Shop may provide a Service Pre-Visit Inquiry to help plan the trip. This can include information about site security requirements, certifications, safety clothing or equipment, arrival procedures, directions, shipping or RMA requirements, system condition, and specific training needs.