Function Summarization

It's a small size digital display meter, which is mainly used to install on the fixed or moveable generator set to real-time measure the AC voltage and frequency of output circuit, and it adopts the LED figure direct reading mode to display. At the same time, it can provide the functions 
such as the running time of generator,  generaotr oil trouble indication and forced  flameout.  It adopts the epoxy resin sealing and filling process to produce, and it can meet the generator requirements of waterproof, dampproof, shock-proof, and safety protection.
Function features:
★It can measure the output circuit voltage and frequency at the same time, and toggle display by panel keyboard
★It has the function of accumulated running time statistics of generator, and the data will not be lost when power off or instable voltage
★It can support the low oil level fault light alarm (only for 4-in-1 meter)  
★It can control the ignition plug to realize the forced flameout protection when oil fault (only for 4-in-1 meter) 
★It adopts the no auxiliary power supply design mode, when input the voltage signal, the meter will start normal working   
★The circuit board adopts the epoxy resin glue to seal, which makes it safe and reliable
★It selects and uses the specialized connectors to reduce the error probability of connection

Model & Specification & Selection Table

Basic Parameter

★Measuring range of voltage: AC 90V~300V
★Measuring range of frequency: 45.00~65.00Hz
★Measuring accuracy of voltage: ±1.0% 
★Measuring accuracy of frequency: ±0.2 Hz
★Resolving ability: for voltage is 1V;  for frequency is 0.1Hz 
★Power consumption of meter: <3W
★Cumulative running time: maximum 9999 hours, resolving ability is 0.1h, data will be not lost when power off
★ Working environment: temperature is -10~+50°C,humidity <85% RH,without any corrosive gas
★ Safety withstand voltage: between the measuring input terminal and the control terminal,orbetween the measuring input terminal and the shell, they can pass the AC 2kV withstand voltage testing

Terminal Layout and Connection(mm)

Typical Connection