M8100 Synchronization Meter

The M8100 Synchronization Meter provides illuminated indication of the frequency and phase deviation between voltages on two separate AC systems (e.g. a generator and a busbar). The M8100 will also indicate whether or not the two systems are live.

A moving light dot indicates the frequency deviation. The magnitude of the frequency deviation is indicated by the speed and direction of the movement.

Clockwise movement indicates that the frequency is too high on the incoming system. Counter clockwise movement indicates that the frequency is too low. A steady light dot at 6 o’clock position indicates zero frequency deviation and 180 degrees phase deviation. Exact synchronization. frequency and phase accordance is achieved when the light dot is steady at the 12 o’clock position (when the green LEDs ignite).

The M8100 scale is made up from 38 bright red LEDs. The resolution provided by the 38 LEDs is almost as fine as a pointer synchroscope, however the LED based design is far better at withstanding environmental influence from vibration, temperature and humidity.

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  • Clear data visualization thanks to color graphic display 3.5” TFT (separately for the synchroscope, differential voltmeter, frequency meter);
  • Range of input signals: 50…150 V or 150…400 V;
  • Direct or indirect measurement through voltage transformers;
  • Additional control input: BLK – lock synchronization, START – start synchronization
  • Programmable hysteresis of voltage difference, frequency, and phase shift angle
  • Ethernet interface 10/100 BASE-T for connecting the synchronization meter to the local area network (LAN) or the global one (WAN);
  • Network services: web server, Modbus TCP / IP, DHCP client;
  • RS485 with MODBUS RTU protocol;
  • Password protection for two accounts of Web Server user,
  • Measurement of the minimum and maximum values of voltage and frequency
  • External dimensions:  96 x 96 x 77mm




  • For data synchronization between databases
  • Data synchronization across different platforms
  • Synchronize the data generated in real time to the data analysis platform
  • Real-time analysis and report generation
  • Data backup and recovery
  • Synchronize data between different applications for data sharing and process integration
  • Synchronize data between different cloud service providers
  • Achieving Data Consistency in Multi-Cloud Environments





Parameter Value
Voltage supply 660V
Voltage range 70 – 110%
Consumption 2 x 3VAmax.
Frequency range 35-70Hz
Pullin /dropoutdiff. Frequency +9Hz
Operating temperature -20℃ to+70°℃
Emc According to lEC/EN61000-6-1/2/3/4
Burn-in 50 hours before final test
Enclosure material Flame retardant
Weight 0.7kg
Dimensions 96x 96 x 80mm (Hx WxD)
Panel cut out 92x 92mm(Hx W)
Voltage difference 10 – 20%
Frequency difference 6 – 12°
Phase difference 1s – 5s
Dead bus delay 20% – 40%
Dead bus voltage offset 20% – 40%+
Min. generator voltage 80% of nominal voltage for DB closure
Contact rating AC: 250V, 1.2V, 125VA DC: 30V, 1A, 30W