Product description
MicroPhase I is an easily operated phase comparator, dual voltage detector and maintenance tester. Its automatic, thorough self-test ensures reliable function. The permanently enabled interface-testers warn against defect interfaces.
The integrated “Universal Phase Comparator” compares two different interface signals, even if they are of different interface type or voltage. A unique error control avoids switching errors caused by erratic or unfeasible phase comparison. The indication of a signed phase angle helps to sync different net segments or to put the phase sequence in desired order.
Application and technique
MicroPhase I is a dual phase VDS (Voltage Detecting System) with integrated UPC (Universal Phase Comparator) 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 indication of the interface current is executed by means of two bright LEDs per input phase, which display the conditions voltage absent, residual voltage, voltage present, string part Ok and high current 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 |
Three additional LEDs display the phase conditions phase balance, phase unbalance and phase comparison impossible.
| Condition | Phase angle | Display |
|---|---|---|
| Phase unbalance, Lx -> L1 | -180 .. -21° | red flashing light |
| Phase balance | -20 .. +20° | green continuous light |
| Phase unbalance, L1 -> Lx | +21 .. +180° | red continuous light |
| Error | not determinable | amber continuous light |
The determination is accomplished with an rms-value measuring method independent of the applied waveform. Fast zero-crossing detectors with digital offset compensation carry out phase comparison.
The integrated self-test ensures unfailing operation. It starts automatically whenever the device is switched on. You merely plug the connection leads into the test jacks of the device, push the power button once and the device checks the connection leads, the LEDs, the battery 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 it shuts down.
Options
Firmware modification
The device can be set to a specific operating / nominal voltage ratio on request.
Technical data
| MicroPhase I (MP1-03) | |
|---|---|
| Connecting system | LR |
| Impedance | 2 MΩ at f=50 Hz |
| Threshold values (Uo = Un) |
0,3 µA – residual voltage 2,4 µA – voltage present 3,2 µA – string part ok 15 µA – high current |
| Phase angle | ± 0 – ± 20° – phase balance ±21 – ±180° – phase unbalance |
| Frequency range | < 20 … > 200 Hz (VDS) 45 – 65 Hz (UPC) |
| Input voltage | 0 – 65 V~ |
| Plug proportions | 2x phone plug Ø 6,3 mm at 1,5 m connection lead |
| Electronics | 8 Bit MCU; 2 MHz clock; 10 Bit ADC |
| Display | 3x LED green, 3x LED red, 1x LED yellow, 1 LED Blue buzzer switchable |
| Power supply | 2 lithium cells, 6V |
| Dimensions | 150 x 80 x 35 mm |
| Weight | approx. 400 g |
| Protection class | IP 54 |
Subject to change without prior notice!
