Vehicle measurement system

Vehicle measurement system
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Vehicle measurement system

The ELT-400 vehicle measurement system was specifically designed for the use in passenger cars. The positions of the probes can be adjusted using an optionally available bracket to suit different seat types and sitting positions. A frequency range of 1 Hz – 400 kHz is covered by using the ELT-400 magnetic field analyzer from Narda STS as measurement probes. The magnetic field density is measured in Tesla and the exposure can be shown directly in percentage of the allowed safety limit according to the chosen standard / directive. A spectrum can be viewed for each installed probe in the car by the use of FFT-analysis which helps to associate the magnetic field exposure with specific objects in the car by referring to the frequencies. This makes it easier to locate the cause of high exposure in case of a limit violation. The measurement data of each probe is logged and can be saved for future analysis or further evaluation.

This system offers great advantages for measurements in newly designed hybrid or electrically powered cars. Thanks to the automatic logging function of the system it is even possible to drive the car during the measurement and evaluate load changes under real-world conditions.

Furthermore it is optionally possible to feed in car data into the measurement system directly via the CAN-interface. This data can be logged simultaneously during the measurement and can be saved and viewed at any time. This simplifies the association of the measurement data with the car parameters.

Model

7904A-001

7904A-101

7904A-201

Dimension (WxHxD)

442x245x541mm

340x100x260 mm
excluding guard covers

335x75x240 mm

Weight

< 15 kg

< 5 kg

< 5 kg

Hardware

Number of
channels (ELT-400)

Min. 3 (1 slot)
Up to 15 (5 slots)

3

1

Synchronous operation

Up to 3 basic units
(Max. 45 ELT-400s) can be operated simultaneously

No

No

Upgrade to 7904A-001

-

Yes

No

Control & Monitor

Basic unit (touch panel)
or Windows PC

Windows PC

Windows PC

Storage device

Internal SSD
256GB : 40min. / 512GB : 80min. for 15 ch
* Easy exchangeable

Internal SSD
256GB : 200min. for 3 ch
* Destination to save can be changed

Hard disk drive of PC
256GB : 600min. (Recording time depends on the disk space)
* Destination to save can be changed.
* Optional external SSD with USB3.0 is available.

Interface

On each slot;
mini DIN 6p x 3 for ELT-400 controll
mini D-Sub 15p x 3 for ELT-400 analog output
On the basic unit;
USB3.0 TypeB for PC
Remote controll port
Input/Output Sync. port
etc...

mini DIN 6p x 3 for ELT-400 controll
mini D-Sub 15p x 3 for ELT-400 analog output
USB3.0 TypeB for PC
USB3.0 TypeA for PC (connected to Internal SSD)

mini DIN 6p for ELT-400 remote interface
mini D-Sub 15p for ELT-400 analog output
USB3.0 TypeB for PC

Power supply

Input : 10 to 16 VDC
Adapter: 100-240 VAC / 12VDC

Input : 10 to 30 VDC
Adapter: 100-240 VAC / 12VDC

Dedicated AC adaptor
(100-240 VAC / 12VDC)

 

From vehicle battery

Yes

Yes

No

CAN Interface

Optional,
USB adapter that can be connected to the OBD-II connector
*Please contact us for further details.

Optional,
USB adapter that can be connected to the OBD-II connector

No

LAN Interface

Optional,
RJ-45x1 (IEEE802.3, 1000BASE-T)
*Please contact us for further details.

By using PC’s LAN port
*Please contact us for further details.

No

Function

Application software

Measurement software for Basic unit,
Measurement and Analysis software for PC

Measurement and Analysis softwear for PC

Measurement and Analysis softwear for PC

Measurement function

Exposure Level,
Time domain evaluation,
Frequency domain evaluation

Exposure Level,
Time domain evaluation,
Frequency domain evaluation

Exposure Level,
Time domain evaluation,
Frequency domain evaluation

JASO TP13002 compliance
* The new IEC stanrads will be applied when established.

Yes

Yes

No

Connectivity of 3 cm2 probe

Yes

Yes

Yes

Data file management

 

 

 

 

Compatibility

Yes

Yes

No

 

Clipping

Yes

Yes

Yes

 

Combining

Yes

Yes

No

 

External infomations

Yes

Yes

No

External controller

Optional,
depending on the order

Optional,
depending on the order

No

Included items

Basic unit,
Windows PC with 2 USB3.0 ports,
AC adapter,
Connecting cables for ELT-400,
Application Software

Basic unit,
Windows PC with 2 USB3.0 ports,
AC adapter,
Connecting cables for ELT-400,
Application Software

Basic unit,
Windows PC with 2 USB3.0 ports,
AC adapter,
Connecting cable for ELT-400,
Application Software

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