Systems for measurement and control

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Chapter: Overview · Description · Device configurations


With the VisualDetect line you get a type series of handy, exact and easily operated voltage detectors and maintenance testers.

Parts: VDb-01 and VDL-01AB

Equipped with a thorough self test to ensure reliable function, a permanently enabled interface-tester to warn against defect interfaces and the connectability to HR, MR, LR, LRM or LRP string parts every VisualDetect delivers uncompromising safety.

Moreover the standardized maintenance test can be carried out due to the integrated ammeter as well as the rate of operating / nominal voltage of the specific switchgear can be adjusted on-site.

Application and technique

VisualDetect is a VDS (Voltage Detecting System) according to IEC/EN 61243-5 (DIN VDE 0682 T415). LR is the primary fitting system. Respective adapters for HR, MR, LRM and LRP string parts are available.

The evaluated indication of the interface current is carried out by means of two bright LEDs, which display the conditions voltage absent, residual voltage, voltage present, string part Ok and high current respectively. Additionally you can read the digital ammeter to get the live interface current in [I/µA].

The evaluation of the actual voltage state is accomplished with an rms-value measuring method independent of the applied waveform. By means of the active display no external light source is required for metering, like it is needed for passive LC-displays: you rather deplete torch light batteries than device-batteries.

The integrated self-test ensures unfailing operation. It starts automatically whenever the device is switched on. After pushing the button once the device checks the connection leads, the LEDs, the battery voltage and the correct functioning of electronic measuring circuits and software. When an error is detected you will be notified of fault condition by a specific message and afterwards the device shuts down.

Long-lasting lithium batteries power the thrifty microcontroller electronics for many operating hours.

Device configurations

Order-no. Name
VDb-01 VisualDetect basic - basic unit
VDb-01/K VisualDetect basic (Set)
VDL-01 VisualDetect LCD - basic unit
VDb-01/K VisualDetect LCD (Set)