Digital 4-20mA 0-10V Voltage Signal Generator 0-20mA Current Transmitter Professional Electronic Measuring Instruments  Description: MODEL：QH-VISG2-ED(Withbattery) / QH-VISG2-EN(No battery) Voltage And Current Signal Generator-User manual V202008 1.Technical Indicators 1.1 Three power supply modes ,using the mobile phone charger or external 24V can charge/work; 1.1.1 External wiring terminal power supply DC15-30V 1W(without charging)/4W(charging); 1.1.2 External MicroUSB-5V current 0.2a (no charge)/0.8A(charge); 1.1.3 (Optional) The built-in 3.7V lithium battery(1000mah), the maximum charging current is 0.6A,Generally, it takes more than 4 hours to fully charge. It can be used for 1-5 hours; 1.2 The voltage output is adjustable ± 10V,Error<0.05V after calibration, and the driving current<20mA 1.3 The current output is adjustable 0-22ma,Error<0.05mA after calibration, and the sampling resistance is <500Ω; 1.4working environment: 0-40℃, relative humidity < 80%； 1.5Size (cm)：Shell=100x60x20,The plugprotruding 9cm,Theknobprotruding15cm 2.Wiring diagram 2.1 Voltage signal output：5-AVO  6-GND 2.2 Common active mode of current output：Our output 4-AIO6-GNDcorresponds to PLC I + I - 2.3 Current passive mode：ThePIN3-AI+ is externally connected to 24V+, and then output from 4-AIO to control the external 24V current.Our meter is equivalent to an adjustable resistance;Therefore, it is called passive mode. 3.Usage 3.1 Operation panel and operation instructions 3.2 Switching - Adjust the display V or I, press the "MODE" key to switch and adjust the display V or I MODE The indicator light shows what state it is in and what mode the system operation is in; The original output will continue to output After switching, but not in the adjustment status; Turn on the battery switch to check the battery status and quantity 3.2.1 Batterystatus indicator：       Batteryindicator    Green    Yellow    Red    Twinkle    Green not Twinkle(External power)        capacity    ≥80%    ≥40%    ＞0    Charging。。。    Full     3.2.2Hold the "MODE" key for 1 second and the digital tube flashes for 5 seconds to display the battery voltage; 3.3 Digital adjustment and parameter setting： （Forewarned：Push Down The Knob Is “OK<Confirm>”,Clockwise Rotation The Knob One Pulse Is” + <Add>”, Anticlockwise Rotation The Knob One Pulse Is” - <Minus>”） 3.3.1 Short Press “OK” To Save The Output Value,Digital Tube Display "..." After loosening, Saved Successfully, The Output Value Is This Saved Value After The Next Boot; When We Debug The Device, We Need To Adjust The Output Value Randomly, As Long As The Knob Is Not Pressed, It Will Still Be The Saved Value After Rebooting; 3.3.2 Hold The “OK” For 2 Seconds To Enter The Setting State.,Display”F001”(Parameter Number 001); 3.3.3 Turn the knob to change the parameter number, You need to enter a password when enter F002 or F100： 3.3.3.