VisualDetect basic
Chapter: Overview · Description · Options · Technical data · Item numbersAllround 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.
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 absent, residual voltage, voltage 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 |
|---|---|
 |
High current (equivalent to > 120% Un) |
 |
String part ok |
 |
String part defect |
 |
measured current, here 3,2 µA |
 |
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!
Configurations
| Order-No. | Name |
|---|---|
| VDb-01 | VisualDetect basic |
| VDb-01/K | ... with HR-LR Adapter in plastic case |
| VDb-01/L | ... with HR-LR Adapter in leather wallet |
| MA-HL02 | Test adapter HR to LR-system |
| MA-ML01 | Test adapter MR to LR-system |
| MA-LML01D | Test adapter LRM to LR-system (Type D, flex) |
| MA-LML01F | Test adapter LRM to LR-system (14 mm fixed) |
| MA-LPL02D | Test adapter LRP to LR-system (Type D, 4 mm) |
| MA-LPL02D/6 | Test adapter LRP to LR-system (Type D, 6 mm) |
| MA-LPL01D/CC | Test adapter LRP to LR-system for CapaConnect |
| AB-KK01 | Plastic case for VisualDetect basic |
| AB-LT01 | Leather wallet for VisualDetect basic |