FH2000 Electric Fire Monitoring Host Machine receives the alarm signal from the Residual Current Monitors. It possesses the functions of displaying the location, time, position of the fault as well as checking and remote controlling. The equipment is elegant and user-friendly. Using industrial controlling host machine as its control core, it is consists of control circuit, communications circuit and other peripheral circuits. The machine operates fast and stable. It collects the real-time monitoring data and displays the data on the LCD screen. With emergency power supply, the system will continue to operate in sudden power cut-off. By contacting with the monitors and getting connected with system, the host machine receives the data information. It possesses the functions of independent operation, self-checking, reset, mute, fault alarm records storage, networking with higher level integrated system by adding some managing computer etc. It will send audible and visual alarm to the staffs on duty if there were any electric faults in power supply and distribution system. 2. Main functions of the system and technical parameters Electric fire monitoring system consists of Electric Fire Monitoring Host Machine, Residual Current Monitor and the system bus. The system exploits bus communication method. The residual current monitor and the detecting modules take separate configuration forms. They can accurately spot the fault loop location and monitor changes of the fault points and then sending off alarm in a centralized way, displaying, handling faults timely, recording faults of all kinds and processing experimental signals. The storage time is up to 12 months. FH2000 Electric Fire Monitoring Host Machine possesses the functions of fire control linkage, self-checking, reset and mute. 3.1 Number of monitoring points: 1250 pieces of monitors 3.2 Communication distance: 1.2km, we can extend communication distance according to your requirement 3.3 Operation voltage: AC220V 3.4 Monitoring alarm function 3.5 Communication circuit break, short circuit alarm function 3.6 Event record 3.7 Saving Alarm messages up to 100,000 pcs, more than 10 years storage period 3.8Faults information checking and printing 3.9 Customers file creating 3.10 Operator on duty files creating 3.11 Fault locations automatic numbering 3.12 System bus RVV 4 x 1.5 mm 2 or other similar copper wires, four-core bus 3. System features 1. Administrators might set the parameters for residual current and the temperature etc and add or delete the monitoring points. The monitoring alarm points should not exceed 1250 points. The system can accurately spot the fault loop location and monitor the changes of the fault point, check and print the fault records. 2. Using free style words input to tag certain monitoring points, displaying relative locations of monitors in the system in a comprehensive and plain way. By clicking the monitoring equipment icon, you can see relevant data of that equipment. 3. The system can process residual current, over-current, and overheating alarming data uploaded by the residual current monitors. It also has remote control function to reset, mute and trip. 4. Alarming information perpetual storage (time storage period longer than 12 months); real time storage for the data collected by the monitoring points as required 5. Un-interruptible Power Supply, the system may shift the main electric power supply and the standby electric power supply automatically; Intelligent battery charge and discharge management; AC power/standby power under-voltage fault alarm; display the power status of the system. Junhao's Electric fire monitoring system possesses the man-computer interaction and remote control function.