LINEAR RESISTANCE MEASUREMENT

MAKE SIGNIFICANT SAVINGS

IN RAW MATERIAL QUANTITIES

WHILE ENSURING

CABLE CONFORMANCE

TO THE NORMS

OUR SOLUTION

Conducting fast measurements during manufacturing, ensuring optimal result accuracy, combining facilitated data interpretation and simplicity of installation, the ResTest family is the perfect solution to overcome major challenges facing cables manufacturers. ResTest family includes integrated equipment specifically designed for the cable industry. These resistance bridges not only offer the operating comfort, but also allow mastering of all related uncertainties (temperature, length, current distribution…) to ensure full reliability of the measurement.

OUR OFFERING AESA provides a full range of equipment to fulfil the specificities of all types of conductors ‐ solid, stranded, flexible, insulated,… ‐ no matter where the measurement has to be performed:

On the production line

In the shop‐floor

In the laboratory

In the incoming inspection

LINEAR RESISTANCE MEASUREMENT

ResTest 1

Measuring range 10 [µΩ] - 200 [Ω]

Length (U) 1000 mm

Operating mode Automatic / Manual

Display State-of-art interface thanks to a touchscreen and button system

Dimensions (diameter)

Resistance 0.8 - 40 mm

Resistivity 5 - 40 mm

Resolution 5 digits

Global Accuracy

Resistance ± 0.1 % ± 3 digits

Resistivity < ± 0.5 % (preliminary value)

Power supply 100 - 240 VAC

2 x USB (for printer)

DP connecotr for external monitor

2 x RJ45 for LAN connection

Dimensions1722 x 220 x 382 mm 68 x 8.6 x 15 inches

Weight25 kg55 lb

Outputs

RESTEST 1

Resistivity and linear resistance are intrinsically linked and it is of prime importance to know the resistivity with high precision when producing cables. The resistivity measurement is the first step of cable production monitoring, but maybe the most critical. To be reliable, the measurement requires specific precautions. The cable preparation (extremities cutting, straighten…) and the mastery of influencing factors during measurement (temperature, environment) are crucial.

OUR OFFERING

ResTest 1 offers the possibility to measure resistivity of class 1 conductors with a combination of ultra‐high precision measurement and great simplicity of operation. The new solution developed by AESA allows filling a gap left in power cable measurement. Based on a simple method, the resistivity is calculated through the true measurement of physical parameters. The measurement consists of three different phases: resistance, length, and volume measurements. All the measurements are then processed by software, where the operator only has to indicate the measured values and the result is directly computed.

KEY FEATURES

An all integrated solution

Direct result without post calculation

Control of uncertainties

Fast and reliable solution

TECHNICAL SPECIFICATIONS

RESISTIVITY

LINEAR RESISTANCE MEASUREMENT

RESTEST 813x

Proceed with measurements directly on the production line without cutting samples. No other instrument available on the market today can offer such advantages!

OUR SOLUTION Temporary stop the production line, position and adjust the equipment towards the rope (height and slope). Tighten the jaws to centre the rope, clamp the hydraulic jaws and close the cover. Set the basic data and start the measurement. The equipment induces a known alternative current in the conductor and measures the difference of potential over a predetermined length.

The resistance is calculated from the voltage to current ration. The built‐in probe measures the temperature of the conductor under test in order to display the corrected resistance value as function of to the chosen nominal temperature.

The equipment measures the rope temperature and the heating elements enable the whole area surrounding the measurement setup to be brought up to the temperature of the conductor. All the heating elements are electronically regulated and controlled by microprocessor. After a few minutes only, the temperature is stabilized. A signal notifies the operator when the displayed measuring value is valid. The value can be read or printed. At the end of the measurement, the operator may remove the equipment to restart the production line.

ON‐THE‐LINE

LINEAR RESISTANCE MEASUREMENT

ResTest 8134 ResTest 8135 ResTest 8136

Measuring rangeCu 2.5 - 2000 mm2 2.5 - 2000 mm2 2.5 - 630 mm2

Al 2.5 - 300 mm2 2.5 - 1200 mm2 2.5 - 300 mm2

Max. opening Ø of the jaws (mechanical limitation)

Display

Temperature

Domain of validityAccuracy

0.1% up to 630 mm2

0.1 % up to 300 mm2

With heating facility

Power supplyConsumption

With controlled heating facility

Without controlled heating facility

Outputs

Length 2060 mm 2450 mm 1020 mm

State-of-art interface thanks to a touchscreen and button system

Automatic temperature compensation.The measuring area as well as the tightening jaws are pre-heated

400 V 3 ~ (3 phases) ± 15% (340 ÷ 460 V) 50/60 Hz

60 mm

9 to 7000 µΩ/m at 20°C

0.1 % up to 1000 mm2

0.2 % over 1000 mm3

0.1 %up to 300 mm2

Cu

Al

One RS232

One Centronic

5.5 kW

230 W

0.4%

0.2 % over 300 mm2

KEY BENEFITS

Substantial time saving as cables can be directly measured while still at high temperature thanks to the innovative fast, risk free dry heating system (no water use) – no more need to wait for cables to cool down!

Significant raw material savings through ultra‐smart definition of the security margin of the production machinery

Material savings as no need to test samples which will then be scrapped

Facilitated measurement directly on the production line through revolutionary technology eliminating any need for ground insulation (hazardous and unlawful) of the line

Facilitated data interpretation as the displayed measured resistance values factor in all parameters (nominal temperature, length,…) related to the measurement

Cost‐effective solution provided by a robust trolley allowing you to move and use the device on several lines

Potential savings enable a ROI within one year

The system is ISO17025 certified

TECHNICAL SPECIFICATIONS

LINEAR RESISTANCE MEASUREMENT

RESTEST

To be reliable, measurement of the linear resistance of samples requires perfect mastery of important parameters such as temperature, length, input current, etc. This is why this measurement is generally performed in the laboratory.

OUR SOLUTION

ResTest offers a unique combination of ultra‐high precision measurement with extreme simplicity of operation. All critical components are integrated (temperature sensor, calibrated measuring ruler, specific jaws for all cable types etc.) that allows you to manage and integrate measuring uncertainties.

The displayed values can be used directly (all relevant corrections are already made), printed (label or report) or exported (LAN).

ON SAMPLES

LINEAR RESISTANCE MEASUREMENT

ResTest 50 ResTest 80 ResTest 100 ResTest 110

Measuring range 10 [µΩ] - 200 [Ω] 10 [µΩ] - 200 [Ω] 10 [µΩ] - 200 [Ω] 10 [µΩ] - 200 [Ω]

Length (U) 1000 mm 1000 mm 1000 mm 1000 mm

Operating mode

Display

Mechanical dimension Max Ø 12 mm Max Ø 52 mm Max Ø 45 mm Max Ø 45 mm

Sections

Cu 0,003 - 50 mm2 0,5 – 630 mm² 0.5 – 1200 mm² 0.5 – 1200 mm²

Al 0,003 - 50 mm2 0,5 – 300 mm² (not soldered cable ends) 0,5 – 630 mm² (soldered cable ends)

0.5 – 800 mm² 0.5 – 800 mm²

Resolution

Global Accuracy ± 3 digits ± 0.1 % ± 0.1 %± 0.1 % (Cu < 1000 mm², Al < 185 mm²)± 0.2 % (Cu > 1000 mm², Al > 185 mm²)

± 0.1 % (Cu < 1000 mm², Al < 185 mm²)± 0.2 % (Cu > 1000 mm², Al > 185 mm²)

Power supply

Dimensions1722 x 220 x 382 mm 68 x 8.6 x 15 inches

1722 x 220 x 464 mm 68 x 8.6 x 18.3 inches

1780 x 450 x 410 mm70 x 17.7 x 16.1 inches

1780 x 450 x 450 mm70 x 17.7 x 17.7 inches

Weight25 kg55 lb

30 kg 66 lbs

52 kg114 lb

52 kg114 lb

Outputs

2 x USB (for printer)

DP connecotr for external monitor

2 x RJ45 for LAN connection

Automatic / Manual

State-of-art interface thanks to a touchscreen and button system

5 digits

100 - 240 VAC

KEY BENEFITS

Ease of use on the shop‐floor, thanks to a simple control with two buttons

Extended test possibilities in the laboratory through a touchscreen mode that offers sophisticated utilization

Facilitated data interpretation as the displayed measured resistance values displayed factor in all parameters (nominal

temperature, length…) related to the measurement

TECHNICAL SPECIFICATIONS

High and complete accuracy, based on measurements of all equipment parts, not only the micro‐ohmmeter

Several options available to enhance measurements of difficult samples (e.g. compacting jaws for flexible conductors)

Minimum risk of human errors

Optimal traceability thanks to the storage of each measurement and related conditions

ISO 17025 certified system

LINEAR RESISTANCE MEASUREMENT

REFERENCES

AESA SA Chemin de la Plaine 7 CH‐2013 Colombier

AESA GmbH TBG TechnologiePark Bergisch Gladbach Friedrich‐Ebert‐Strasse D‐51429 Bergisch Gladbach

T +41 32 841 5177 F +41 32 842 4865 aesa@aesa‐cortaillod.com

www.aesa‐cortaillod.com