Waterproof Temperature Monitoring Cables

ZS-7-WP (Waterproof Multipoint Temperature Monitoring Cable)

Also known as ZS-P-WP.

Key Features

• Two- or three-wire communication: Requires only 2 or 3 wires for digital communication.
• Fully encapsulated sensors: Each temperature measurement point is completely enclosed in protective plastic.
• High sensor capacity: Supports up to 200 temperature sensors per cable.
• High tensile strength: Withstands tensile loads exceeding 700 kg.
• Operating temperature range: -40°C to 80°C.
• Programmable temperature sensors.
• Optional high-precision sensor chips.
• Dual-layer waterproof construction: IP68+ protection rating, as specified by the manufacturer.
• Reinforced cable design: Two integrated steel tensile-strength members provide additional resistance to pulling forces and mechanical wear.

Additional Details

The ZS-7-WP is a heavy-duty waterproof multipoint temperature monitoring cable designed for river water, groundwater, geothermal monitoring, ground-source and water-source heat pump systems, soil temperature measurement, and ground-freezing shafts.

The cable features a dual-layer extruded protective sheath with all temperature sensors fully enclosed within the innermost layer. Two integrated steel reinforcement wires provide high tensile strength, with one positioned inside the inner sheath and the other embedded between the inner and outer protective layers.

The inner sheath is constructed from high-density polyethylene (HDPE), while the thickened outer sheath incorporates modified PVC and abrasion-resistant additives. This construction provides resistance to water-related corrosion, soil friction, and mechanical wear.

The cable's solid plastic-filled construction also provides resistance to underwater pressure, making it suitable for submerged installations and demanding underground environments.

Supporting up to 200 programmable temperature sensors on a single cable, the ZS-7-WP enables distributed temperature measurement across multiple depths or locations. Its flexible installation options and compatibility with temperature data collectors and handheld instruments make it suitable for environmental monitoring, geothermal systems, and industrial temperature measurement applications.

Technical Specifications

Temperature measurement range

-40°C to 80°C

Temperature accuracy

≤±0.5°C; optional ≤±0.2°C or customized higher-precision version

Maximum sensors per cable

200

Communication wiring

2-wire or 3-wire digital signal

Supply voltage

3–5.5 V DC, supplied by data collector

Cable outer diameter

12–13 mm

Protection rating

IP68+ (manufacturer-stated)

Tensile strength

Greater than 700 kg

Inner sheath material

HDPE

Outer sheath material

Modified PVC with abrasion-resistant additives

Reinforcement

Two integrated 1.5 mm steel tensile-strength wires

Temperature conversion time

750 ms

Installation methods

Suspended weight or strap-mounted installation

Typical service life

Over 3 years

Customization lead time

10 days

Compatible equipment

Temperature data collectors and handheld instruments

ZS-OIL-2 (Multipoint Temperature Monitoring Cable for Oil Tanks, Water Tanks, and Reservoirs)

Key Features

• Two-wire communication: Requires only two wires for digital communication.
• Consistent temperature accuracy: Measurement accuracy is unaffected by cable length.
• High sensor capacity: Supports up to 100 temperature sensors per cable.
• High tensile strength: Withstands tensile loads exceeding 500 kg.
• Operating temperature range: -30°C to 90°C.
• Programmable temperature sensors.
• Replaceable sensor core: Allows maintenance without removing the outer protective sheath.

Additional Details

The ZS-OIL-2 is a multipoint temperature monitoring cable designed for thermal energy storage tanks, water reservoirs, swimming pools, oil storage tanks, and similar applications.

The cable features a dual-layer waterproof construction. Its outer sheath is made from 304 stainless steel and undergoes pressure testing to ensure water resistance. The internal sensor core is fully encapsulated in silicone, providing a secondary waterproof barrier.

The stainless steel outer sheath provides corrosion resistance against most water-related corrosion conditions, making the cable suitable for long-term use in submerged environments.

The ZS-OIL-2 uses a two-part construction consisting of a stainless steel protective sheath and a removable temperature-sensing core. If the internal sensor core becomes damaged, it can be quickly withdrawn and replaced without removing the outer sheath from the installation.

This design significantly reduces maintenance costs and simplifies repairs, particularly in installations where removing the entire monitoring cable would be difficult or expensive.

Technical Specifications

Temperature accuracy

±0.4°C; optional ±0.2°C version

Maximum cable length

100 m

Maximum extension cable length

500 m

Cable outer diameter

14 mm

Protection rating

IP68+ (manufacturer-stated)

Supply voltage

2–5.5 V DC, supplied by collector

Output

Digital signal, optional RS-485 version

Sensor conversion time

2 seconds for 100 points

Installation

Suspended or flange-mounted

Inner core material

Nylon or PE

Typical service life

Over 3 years

Customization lead time

10 days