Manual
MODEL：QH-VISG2-ED(With battery) / 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;
1.4 working environment: 0-40 ℃, relative humidity < 80%；
1.5 Size (cm)：Shell =100x60x20 ,The plug protruding 9cm,The knob protruding 15cm
2 Wiring diagram
1
GND Power supply negative (input)
2
24V Power supply positive (input)
3
AI+ Current passive mode 24V+ input
4
AIO Current signal output
5
AVO Voltage signal output
6
GND Signal ground (connect 1-GND)
2.1 Voltage signal output：5-AVO 6-GND
2.2 Common active mode of current output：Our output 4-AIO 6-GND corresponds to PLC I + I -!
2.3 Current passive mode：The PIN 3-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 Battery status indicator：
Battery indicator Green Yellow Red Twinkle Green not Twinkle (External power)
capacity
≥80% ≥40% ＞0 Charging。。。
Full
4.AIO
6.GND
Generator
I+/AI
I-/COM
PLC/VFD/Valve
3
.
AI+
4
.
AIO
Generator
I+/AI
I-/CO
PLC/VFD/Valve
5.AVO
6.GND
Generator
A+/AV
A-/COM
PLC/VFD/Valve
Voltage connect
24V+
24V
-
Current connect
Current passive mode