Norbar TST 25 - Series 2 Torque Wrenches 1.2-25NM
The Norbar TST 25 Series 2 (43214) is a bench torque tester designed for checking torque screwdrivers and small torque wrenches across a range of 1.2–25 N·m. It offers ±0.5% system accuracy from 20% of capacity, BS 7882:2017 Class 1 classification over the primary range, and UKAS-accredited certification. Supplied by General Tech Services LLC, UAE, it is suitable for calibration laboratories, quality departments and precision assembly environments.
Part No. 43214
Contact Number: +971 6 5436933
Torque screwdrivers and small wrenches require accurate, documented checks to maintain consistent assembly quality. The Norbar TST 25 Series 2 provides a bench-mounted testing solution for tools operating up to 25 N·m, helping calibration teams and quality departments verify torque performance and record results.
The tester covers 1.2–25 N·m through a 1/4" hex drive. Instrument accuracy is ±0.05%, or ±0.1% below 10% of transducer capacity, while system accuracy is ±0.5% from 20% of capacity. It is classified to BS 7882:2017 Class 1 over the 20–100% primary range and Class 2 over the secondary range.
SMART transducer recognition displays the capacity, unit and serial number when a compatible Norbar transducer is connected. Limit detection provides low, pass and fail indications against up to 12 targets, supporting quick assessment against predefined torque limits. An analogue output is available for process-control applications.
The TST 25 Series 2 operates using its fast-charge internal battery or a 90–264 V AC supply. Password protection helps restrict access to settings, while the RS-232-C interface supports connection to a compatible PC or printer for recording test results.
Weighing 4.7 kg, the tester is manufactured in the UK and supplied with a carrying case. Its multiple transducer connections also allow compatible external Norbar transducers to extend the range of tools that can be tested.
Documented bench testing helps calibration laboratories and quality teams maintain records showing whether tools were within their specified torque limits at the time of testing. ISO 6789-1:2017 recommends recalibrating torque tools after 12 months or 5,000 cycles, whichever occurs first, and sooner after a drop or overload. The tester can support additional checks between scheduled calibration intervals.
For tools requiring a lower torque range, consider the Norbar TST 2 Series 2, which covers 0.04–2 N·m.
Key Benefits
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Accurate torque measurement: ±0.5% system accuracy from 20% of capacity.
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Standards-based classification: BS 7882:2017 Class 1 over the primary range and Class 2 over the secondary range.
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SMART transducer recognition: Displays compatible transducer capacity, unit and serial number.
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Configurable testing limits: Supports up to 12 targets with low, pass and fail indications.
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Flexible power supply: Runs on an internal rechargeable battery or 90–264 V AC.
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Data connectivity: RS-232-C and analogue output support result recording and process-control applications.
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Password protection: Helps control access to tester settings.
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UKAS-accredited certification: Supports calibration and quality-assurance requirements.
For pricing and availability, contact General Tech Services LLC, UAE, on +971 6 5436933.
Who This Product Is Best For
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Calibration laboratories testing torque screwdrivers and small torque wrenches.
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Tool cribs and maintenance departments checking torque-tool performance.
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Quality teams conducting documented torque audits.
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Electronics and precision assembly facilities using low- to medium-torque tools.
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Tool-hire and service companies inspecting returned torque tools.
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Industrial facilities that require recorded torque checks for quality assurance and audit purposes.
How to Specify & Install It
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Confirm the required range: Ensure the 1.2–25 N·m capacity matches the torque tools being tested.
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Prepare the bench: Place the tester on a stable, level work surface and connect the appropriate AC supply or use the internal battery.
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Configure the test settings: Select the measurement mode, unit and target limits for the application.
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Connect the tool: Fit the compatible torque tool to the 1/4" hex drive and check that it is correctly aligned.
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Perform the test: Apply torque smoothly in accordance with the tool manufacturer's testing procedure, monitoring the reading and limit indication.
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Record the result: Document the reading or transfer the result to a compatible PC or printer through the RS-232-C interface.
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Maintain calibration records: Follow the applicable calibration schedule and arrange earlier checks if tools are dropped, overloaded or show signs of inconsistent performance.
Frequently Asked Questions
What torque range does the Norbar TST 25 Series 2 cover?
It covers 1.2–25 N·m and uses a 1/4" hex drive.
How accurate is the TST 25 Series 2?
Its stated system accuracy is ±0.5% from 20% of capacity. Instrument accuracy is ±0.05%, or ±0.1% below 10% of transducer capacity.
Which classification does it carry?
It is classified to BS 7882:2017 Class 1 over the 20–100% primary range and Class 2 over the secondary range.
Can I connect the tester to a computer?
Yes. The RS-232-C interface supports connection to a compatible PC or printer for transferring or recording test results.
Does the tester include a calibration certificate?
Yes. UKAS-accredited certification is specified for this product.
Can I use external transducers?
Yes. Compatible Norbar transducers can extend the range of tools that can be tested. Confirm compatibility and the applicable measurement range before use.
Can it test anti-clockwise torque tools?
Confirm the available testing directions and calibration arrangements with the supplier before ordering, especially if anti-clockwise testing is required.
Should I choose the TST 25 Series 2 or the TST 2 Series 2?
Choose the TST 25 Series 2 for tools within its 1.2–25 N·m range. The TST 2 Series 2 covers the lower range of 0.04–2 N·m.
How often should torque tools be recalibrated?
ISO 6789-1:2017 recommends recalibration after 12 months or 5,000 cycles, whichever comes first. Earlier recalibration may be necessary after a drop or overload.
How can I request a price in the UAE?
Contact General Tech Services LLC for current pricing and availability.
For the Norbar TST 25 Series 2 (Part No. 43214), contact General Tech Services LLC, UAE, for pricing and product assistance.
+971 6 5436933
