Voltage meters for welding machine

Voltage meters for welding machine Power supply DC48V measure DC voltage-Voltmeter Specification —Digit display:High lighted LED Blue —Auto zero-setting —Auto polarity changing —Sample period:400ms —Over-range display:the left digit display(1)or(-1) —The position of decimal point can be set arbitrarily by the outer wire. —Operating temperature: 0 50°C(relative himidity:20% 80%) —Power supply:DC48V 30mA —Dimension:W79mm×H42mm×D40mm —Install tapping size:76mm×39mm —MTBF≥50000h Parameters ModelFull rangeResolutionMax inputvoltage\currentAccuracyXL5135V-1 ±199.9mV100uV ±10V±1%+3 digit Basic Troubleshooting 1. LED not display Check whether the power supply is normal or not. 2. Display appears scrambled Check whether the power supply is stable. Check whether there is electromagnetic interference nearby.electromagnetic interferenceelectromagnetic interference 3. 1 or -1 Display Check whether open-circuit Check whether the voltage or amper is outrange.