SR: Torque Testers & Calibration Equipment

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Digital Torque Testers & Torque Tester Calibration Equipment Overview

Torque tools require calibration and recalibration at intervals that assure the tools remain accurate while keeping the ownership cost of the tools at minimum. The selection of the best strategy for assuring accuracy must be followed by selection of the appropriate tester(s) and support equipment to achieve the goals.

We have two papers to assist you in strategy determination and tester selection. We strongly urge you to read them and use the information to assist in determining the best equipment for your operation. These papers are:

Multi-Transducer Static Torque Testers

System 5

+/- 0.25% I. V. Accuracy
Connects to up to 10 transducers
Works with S/R Mechanical Loaders
Power Tool Mode
Suitable for all torque tools of +/- 1% I.V. Accuracy or less.
Includes FREE certificate of calibration from our ISO/IEC 17025 Accredited Calibration Laboratory!

System 4

+/- 0.5% I. V. Accuracy
Connects to up to 10 transducers
Works with S/R Mechanical Loaders
Power Tool Mode
Suitable for all torque tools of +/- 2% I.V. Accuracy or less.
Includes FREE certificate of calibration from our ISO/IEC 17025 Accredited Calibration Laboratory!

Static Torque Transducer Compatibility Chart

All of the torque transducers listed here are designed to work with both System 4 and System 5 Digital Torque Testers. Each has differing mounting options and/or mechanical loader compatibility. This chart will help you select the best transducer models for your application.

Transducer	ML 250	Quad Plate	ML 1000	ML 2000	Vertical Mount	Horizontal Mount
TT Series	Yes	Yes*			Yes	Yes**
STT-P Series	Yes*	Yes*			Yes	Yes**
STT-QC			Yes	Yes
TT-MLQC Series			Yes	Yes
STT-L Series					Yes	Yes

* Must be within torque limits of loader. Not for transducers of greater than 250 ft. lb. capacity.
** Requires optional bracket.

Multi-Transducer Rotary Torque Tester System

System 6

+/- 0.5% I. V. Accuracy
Up to seven rotary torque transducers (RTT series) can be calibrated into tester.
Excellent for calibrating stall, clutch or pulse tools in the laboratory or on the line.
Includes FREE certificate of calibration from our ISO/IEC 17025 Accredited Calibration Laboratory!

Rotary Torque Transducers

Designed for use with System 6 Digital Torque Tester.
Non-contact brushless design.
Suitable for all non-impacting power tools.

Single-Transducer Static Torque Testers

Torq-Tronics®

+/- 1% I. V. Accuracy
Four modes of operation - Track, Peak, Initial Peak and Power Tool
Six buttons do everything!
Suitable for all torque tools of +/- 4% I.V. Accuracy or less.
Two models permit vertical or horizontal mounting.
Includes FREE certificate of calibration from our ISO/IEC 17025 Accredited Calibration Laboratory!

VeriTorq®

+/- 1% I. V. Accuracy
Three modes of operation - Track, Peak and Clicker
Four buttons do everything
Excellent for interim checks.
Suitable for all manual torque tools of +/- 4% I.V. Accuracy or less.
Includes FREE certificate of calibration from our ISO/IEC 17025 Accredited Calibration Laboratory!

Torque Tester Calibration Equipment

Torque tester calibration is identical to torque tool calibration in its’ necessity, but of significantly greater technical difficulty in obtaining the required accuracy. Everything from the rigidity and stability of the mounting base to the distance from the center of the tester drive to the center of the cable of the weights used becomes critical for accuracy. Even the gravitational variation where the calibration testing is performed is important.

Go to our Torque Tester Calibration Equipment page to see the range of S/R offerings, and how we can help you obtain the accuracy critical to success.

Data-Driven Torque Wrench Calibration Frequency
Technical and Operational Considerations in Torque Tester Selection

Sturtevant Richmont