• Robert Dansaertlaan, 250 - 1702 Groot-Bijgaarden - Belgium

VisualDetect – VDS Voltage detector

SKU: MDb-01 Category:

Product description

Allround voltage detection

VisualDetect basic is an easily operated voltage detector and interface-tester. Its automatic, thorough self-test ensures reliable function. The permanently enabled interface-tester warns against defect interfaces, whereas a dot matrix display shows the measured current [I/µA] or frequency [f/Hz]. Thanks to the integrated configuration menu it can be adjusted to switchgears operated below nominal voltage on-site.

Article: VDb-01Display scheme VDS

Application and technique

VisualDetect basic is a VDS (Voltage Detecting System) for the LR-System in compliance with IEC/EN 61243-5 (DIN VDE 0682 T415). Additionally the device connects to HR, MR and LRM string parts with the appropriate adapter.

The permanent indication of the evaluated interface current is carried out by means of two bright LEDs, which display the conditions voltage absentresidual voltagevoltage present and string part ok respectively:

Condition Current (Uo = Un) Display
Voltage absent < 0,3 µA Green continuous light
Residual voltage 0,3 – 2,3 µA Green flashing light
Voltage present 2,4 – 3,1 µA Red flashing light
String part ok > 3,2 µA Red continuous light

The determination is accomplished with an rms-value measuring method independent of the applied waveform, so that stepper motors, switching power supplies or wind turbines run with frequency inverters pose no threat. If operating / nominal voltage differ (the ratio is set), the threshold values will be readjusted accordingly.

The build-in ampere and frequency meter assists in compliant maintenance-testing of switchgears, as stated in section 5.26 of IEC/EN 61243-5, by providing explicit information via the dot matrix display:

Diplay Meaning
I>> High current (equivalent to > 120% Un)
Ok! String part ok
Def String part defect
3u2 measured current, here 3,2 µA
50H measured frequency, here 50 Hz

The integrated self-test ensures unfailing operation. It starts automatically whenever the device is switched on. You merely plug the connection lead into the test jack of the device, push the power button once and the device checks the connection lead, the LEDs, the battery and the correct functioning of electronic measuring circuits and software. When an error is detected you will be notified of fault condition by ticker before it shuts down.

Options

Firmware modification

On request we can preset your custom operating / nominal voltage ratios for easy handling or personalize the menu navigation – as far as possible – according to your wishes.

Technical data

VisualDetect basic (VDb-01)
Connecting system LR
Impedance 2 MΩ at f=50 Hz
Theshold values
(Uo = Un)
0,3 µA – residual voltage
2,4 µA – voltage present
3,2 µA – string part ok
15 µA  – high current
Frequency range < 20 … > 200 Hz
Input voltage 0 – 65 V~
Connecting system 1/4″ phone plug; 0,5 m connection lead
Electronics 8 Bit MCU; 2 MHz clock; 8 Bit A/D
Display 1x LED green, 1x LED red,
4 char dot matrix (red)
Measurement range Current: 0,0 – 9,9 and 10 – 35 µA
Frequency: 9 – 150 Hz
Power supply 3 lithium cells, 9V
Dimensions 150 x 80 x 35 mm
Weight approx. 300 g
Protection class IP 54

Subject to change without prior notice!

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