Product description
MicroDetect basic is a handy, exact and simply useable voltage detector and interface-tester. Its automatic, thorough self-test ensures reliable function. The permanently enabled interface-tester warns against defect interfaces.
Application and technique
MicroDetect 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 | 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. Thus stepper motors, switching power supplies or wind turbines run with frequency inverters pose no threat.
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 voltage and the correct functioning of electronic measuring circuits and software. If an error is detected you will be notified of fault condition by deterministic flashlight signal before the device shuts down.
Options
Firmware modification
The device can be set to a specific operating / nominal voltage ratio on request.
Technical data
| MicroDetect basic (MDb-01) | |
|---|---|
| Connecting system | LR |
| Impedance | 2 MΩ at f=50 Hz |
| threshold values cond. 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~ |
| Plug proportions | phone plug Ø 6,3 mm; 0,5 m connection lead. |
| Electronics | 8 Bit MCU; 2 MHz clock; 8 Bit A/D |
| Display | 1x LED green, 1x LED red |
| Current supply | 2 lithium cells, 6V |
| Dimensions | 150 x 80 x 35 mm |
| Weight | approx. 300 g |
| Protection class | IP 54 |
Subject to change without prior notice!
