Pacific Scientific T5-8103-406-00 Cable Tensiometer

The Pacific Scientific T5-8103-406-00 is the most comprehensive dual-calibration instrument in the entire standard T5 product line — an instrument that spans standard American inch cables (3/16"–5/16" at 40–600 lbs) and British CWT cables (5–80 CWT at 25–1400 lbs) across eight distinct range-cable combinations. No other standard T5 model approaches this breadth of cable type, tension range, and CWT size coverage in a single instrument. Built on the T5-8103 Ref B platform and using two calibration cards — T597-406 (standard inch) and T5069-406 (CWT British) — it is the instrument for maintenance programs working on British-origin aircraft with an exceptionally wide spread of CWT cable specifications, from light 5 CWT secondary cables at 25–125 lbs up to heavy 80 CWT primary cables at up to 1400 lbs, alongside standard inch cable systems on the same airframe.

Eight Range-Cable Combinations. Two Calibration Cards. One Instrument.

The T5-8103-406-00's coverage is best understood in two groups. On the standard inch side (calibration card T597-406): 40–600 lbs on 3/16", 7/32", 1/4", and 5/16" cables — equivalent to the T5-8003-106-00's standard inch range on the same four large cable sizes, on the lighter Ref B platform. On the CWT British side (calibration card T5069-406): 25–125 lbs on 5/10/15 CWT; 25–125 lbs on 20/25 CWT; 150–250 lbs on 25 CWT; 200–1400 lbs on 45 CWT; 200–600 lbs on 80 CWT; and 600–1400 lbs on 80 CWT. The 80 CWT range at 600–1400 lbs is the standout capability — no other standard T5 model covers 80 CWT cable at tensions above 600 lbs. The riser configuration spans from Riser #2C at the low end (3/16" at 40 lbs) to Riser #3B at the high end (CWT/1/4" cable at 1400 lbs) — Riser #3B appearing only on this model and the T5-8203-108-00 in the standard T5 line. Given the instrument's exceptional breadth, calibration card and riser selection discipline is paramount before every measurement. Zero temperature error means the instrument is accurate across all its ranges from -53°C to 71°C without any preliminary adjustments.

The Broadest Coverage in the Standard T5 Line

• 8 range-cable combinations — more than any other standard T5 instrument
• Standard inch: 40–600 lbs on 3/16", 7/32", 1/4", 5/16" via T597-406
• CWT 5–25 CWT: 25–250 lbs — covers light secondary through mid primary British cables
• CWT 45 CWT: 200–1400 lbs — high-tension primary cable measurement on 45 CWT
• CWT 80 CWT: 200–1400 lbs — the heaviest CWT size and highest tension in any standard T5 model
• Riser #3B at upper ranges — unique to this model and T5-8203-108-00; essential for accurate readings at high CWT tensions
• Two calibration cards — T597-406 (inch) and T5069-406 (CWT); always select the correct card and cable-size group before measuring
• T5-8103 Ref B platform — ~1 lb / 0.45 kg
• Zero temperature error — calibration-stable from -53°C to 71°C, no adjustment required
• Pointer lock brake lever — retains reading before removal in confined or overhead areas
• No batteries or electronics — fully mechanical, always ready

Technical Specifications — Range-Cable Matrix

• Series Platform: T5-8103 Ref B (~1 lb / 0.45 kg)
• Riser Range: Riser #2C (low end, 3/16" at 40 lbs) through Riser #3B (high end, at 1400 lbs)
• Operating Temperature: -53°C to 71°C
• Temperature Stability: Zero temperature error
• Pointer Lock: Yes — brake lever rod
• Origin: Made in the USA
• Warranty: 1 year on new units

Typical Applications

• British-origin aircraft with a broad spread of CWT cable sizes from 5 to 80 CWT at widely varying tensions
• Large British military aircraft where primary cables are 45 or 80 CWT at tensions up to 1400 lbs
• Multinational MRO facilities requiring the broadest single-instrument CWT and inch coverage available
• Programs working on aircraft with mixed 5–80 CWT cable systems spanning light secondary and heavy primary cables
• Any maintenance operation requiring CWT coverage beyond what the T5-2002 CWT sub-series provides
• Post-repair and return-to-service verification on complex British-specification aircraft

Pacific Scientific T5-8103-406-00 Calibration

The T5-8103-406-00 should be recalibrated on a scheduled basis — annually at minimum, and immediately following any overload event, mechanical shock, or drop. As the most comprehensive dual-calibration instrument in the standard T5 line — spanning 25 to 1400 lbs across both standard inch and CWT British cable systems — maintaining calibration currency across both calibration profiles is essential. Pilot John International operates an ISO 17025-accredited calibration laboratory capable of recalibrating Pacific Scientific T5-8103 series tensiometers to original manufacturer specifications, issuing a fully traceable calibration certificate upon completion. Whether your maintenance program operates under FAA oversight, UK CAA requirements, a DOD contract, or an ISO 9001 quality management system, PJi's lab delivers the traceability and documentation your compliance requirements demand. Learn more about PJi's ISO 17025 Calibration Services →