Description

Technical Parameters

The link between the field and the control room

Every temperature, pressure, and flow value displayed in your control system originates from an instrument signal cable. Our Instrument signal cable forms the critical connection between field devices and the control room.

It transmits weak signals from transmitters, thermocouples, and RTDs to DCS or PLC systems. Its core function is simple but essential: deliver accurate signals without distortion or loss. It is not just a cable-it is what determines how accurately your control system "sees" the process.

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Optimized electrical design for accuracy

This cable is designed specifically for high-accuracy signal transmission.

The conductor uses high-purity oxygen-free copper, ensuring stable resistance and consistent conductivity, which minimizes signal attenuation over long distances.

The insulation is HDPE with a stable dielectric constant. Working capacitance is controlled at ≤60 nF/km, which is critical for preventing signal distortion in long-distance transmission.

Multiple shielding configurations are available:

Foil shielding for each pair (effective against moderate EMI)
Tinned copper braid overall shielding (strong EMI environments)
Double shielding (for complex environments with both external interference and internal crosstalk)

Deep experience in instrumentation cables

We started producing computer and instrument cables in 2018, and this remains one of our core product lines.

Our products comply with JB/T 13486 and IEC 61156 standards, and are certified to CE and RoHS requirements.

Common models such as DJYPV, DJYPVP, KYVP, and KYV are available in stock. We also support upgraded versions including:

Flame-retardant (ZR)
Fire-resistant (NH)
Intrinsically safe (IA)

For export projects, we provide full test reports and complete customs documentation. Moisture-proof and impact-resistant packaging is used for long-distance transport.

Key Specifications

Parameter	Specification
Common Models	DJYPV, DJYPVP, KYVP, KYV
Conductor	High-purity OFC / tinned copper
Insulation Material	HDPE
Working Capacitance	≤ 60 nF/km
Shielding Structure	Foil (pair) / copper braid (overall) / double shield

Frequently Asked Questions

Q: Is there a limit to the transmission distance of instrument signal cables?

A: In principle, transmission distance depends on conductor resistance, capacitance, signal type, and system impedance. There is no fixed limit.
For standard 4–20mA analog signals, transmission can reach several hundred meters and in some cases over one kilometer. We strictly control capacitance and conductor resistance during production to ensure stable long-distance performance.
If you have specific distance requirements, we can recommend the optimal cable structure based on your system design.

Q: Can you provide RoHS and CE certificates?

A: Yes. Our products are fully certified with CE and RoHS compliance. We can provide certificate copies along with shipment for customs clearance and project approval.
For markets requiring additional certifications such as SABER (Saudi Arabia) or EAC (Eurasian market), we can also support documentation and sample preparation.

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Instrument Signal Cable

Key Specifications

Frequently Asked Questions