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Cables & Delay Lines
This category is for the two parts of an ultrasonic probe assembly that wear out first: probe cables and delay lines. NDT cables carry the pulse between instrument and transducer. An ultrasonic delay line is the standoff fitted in front of a single element crystal to improve measurement on thin material. The listing includes Dakota transducer cables for ultrasonic thickness gauges and Dakota delay line tips for single element transducers. Seven Star LLC in Oman can source other cables and delay line tips on request against the instrument and probe part numbers.
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Category guide
About Cables & Delay Lines
This category is for the two parts of an ultrasonic probe assembly that wear out first: probe cables and delay lines. NDT cables carry the pulse between instrument and transducer. An ultrasonic delay line is the standoff fitted in front of a single element crystal to improve measurement on thin material. The listing includes Dakota transducer cables for ultrasonic thickness gauges and Dakota delay line tips for single element transducers. Seven Star LLC in Oman can source other cables and delay line tips on request against the instrument and probe part numbers.
NDT cables and connectors
Probe cables are coaxial and are defined by the connector at each end, for example bayonet BNC, push-pull or miniature threaded types. Dual element probes need a dual cable or two singles. Cables fail from repeated flexing near the connector, which shows up as intermittent or noisy signals. Length matters as well, since a longer cable changes the electrical load on the transducer.
Ultrasonic delay line tips
A delay line separates the transmit pulse from the echoes returning from the part, which is what allows a precision gauge to measure thin sections. Tips are consumable. They come in different diameters and lengths, and heat-resistant materials are available for hot surfaces. The tip must suit the specific delay line probe.
What to send
Give the instrument and transducer models, both connector types, cable length, and for tips the transducer part number and surface temperature. Buyers elsewhere in the GCC can send the same details.
What to include in your inquiry
These details let us quote the right item the first time.
- Material and thickness range
- Application (corrosion survey, weld inspection, bolt tension)
- Instrument model, when ordering probes or accessories
- Transducer frequency and type
- Standards the inspection must follow
Missing some of them? Send what you have. A nameplate photo or an old part number is enough to start.
Brands in Cables & Delay Lines
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Request a Quote for Cables & Delay Lines
Looking for a specific model, part number or brand in Cables & Delay Lines? Send us your requirements and quantities. Seven Star LLC sources genuine industrial equipment for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
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- Formal quotation from our sales team
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Frequently Asked Questions
How do I identify the connectors on my probe cable?
Look at both ends. BNC is a bayonet connector with two locking lugs. Push-pull connectors have a sleeve that latches when pushed in and releases when pulled, and come in more than one size. Miniature threaded connectors are common on small probes. If unsure, send clear photos of the instrument socket and the probe connector with a ruler in frame, together with the instrument and probe model numbers.
Does cable length affect ultrasonic results?
It can. The cable adds capacitance and delay between instrument and probe, so a much longer cable may reduce signal amplitude and alter the pulse shape, more so at high frequencies. For thickness gauges the zero should be repeated after any cable change. Where long cables are unavoidable, for example on rope access or remote probe holders, check the manufacturer's guidance on maximum length for that instrument.
What are the signs of a failing probe cable?
The usual symptoms are readings that drop out or jump when the cable is moved, a noisy or unstable waveform, and loss of signal that returns when the connector is wiggled. Most breaks occur just behind the connector where the cable flexes. Swap in a known good cable before blaming the probe or the instrument. Keeping a spare detachable cable in the kit avoids lost inspection time.
What is the difference between a contact transducer and a delay line transducer?
A contact transducer puts the crystal's wear face directly on the part, which is simple and gives strong signals in thicker material. A delay line transducer adds a plastic column between crystal and part. The column moves the echoes away from the transmit pulse, so thin sections can be resolved, and the tip can be replaced when worn or shaped to fit a curved surface.
Can a delay line be used on hot surfaces?
Standard plastic delay lines soften and change velocity when heated, so they are meant for surfaces near ambient temperature. For hot parts, manufacturers offer delay lines in heat-resistant materials with a stated maximum surface temperature and a limit on contact time. Tell us the surface temperature and the transducer model, and we will check which tip the manufacturer lists for that duty.