QH-VISG2-ED DC±10V 0-22mA Voltage and Current Signal Generator High-Precision Signal Generator (Built-in Battery)

QH-VISG2-ED DC±10V 0-22mA Voltage and Current Signal Generator High-Precision Signal Generator (Built-in Battery)

Features:
- Voltage and current output ranges can be set (0-10V/0-20mA by default). Output voltage can be set as follows: 0-10V, 2-10V, 0-5V, 1-5V, 0-3.3V, 0-2.5V, 0-1V, ±10V, ±5V, and -10V to 0V. Output current can be set to 0-20mA, 4-20mA, and 0-22mA.
- Multiple display modes can be set: actual voltage and current, 100.0 (%) percentage, 50.0 (Hz) frequency and other customized display methods.
- Positive and negative voltage. Can be used to solve these problems: Servo motor is continuously regulated in forward and reverse modes; dimmer light cannot be completely extinguished; motor shakes or even turns slightly.
- Current output compatible with 2-wire, 3-wire, and 4-wire. It also supports passive and active modes to output. It can be connected to analog passive 2-wire pressure sensor and temperature sensor. It can also be connected to active 3- and 4-wire PLC, frequency converter, servo driver, flow valve, etc.
- Output with short circuit protection and power supply with anti-reverse connection.
- Linear output, and its accuracy can be calibrated so that the displayed values are consistent with the actual values.
- 3 power supply modes: external DC15-30V/USB-5V/built-in lithium battery (optional).
- One-key switching to adjust voltage and current, independent wiring, and simultaneous output.
- Coarse and fine tuning. And the number of turns can be set.
- Customize quick adjustment mode. Manual output adjustment is supported with up to 9 points. Only a few values need to be verified during production, which can quickly test the equipment and facilitate production.
- Lithium battery charge and discharge over-current protection, charging automatic management, and electric quantity indication.
- 0.4" 4-digit tube of high brightness, 0.01 precision adjustment, and its output can be calibrated. Potentiometer with stepless knob to adjust. Its performance and life span is N times that of normal potentiometers.
- Output with short circuit protection, 24V input anti-reverse connection design, and charging protection.
- Our signal generator uses MOSFET, industrial grade and branded power supply chips and CPU chips and current loop chip, featuring high precision and good stability; It can work in harsh environments for long periods of time without interruption.
- Store the power-on output value when it powers down: Press the knob to save the output value. As long as you don't press the knob, it will also display the last manually saved value the next time it turns on.
- Ultra-thin matte anti-slip shell, high-grade aluminum alloy knob, and electroplated button. Comfortable to hold, beautiful and generous.

Newly Added Functions (compared with the first-generation):
- The voltage output range can be set from the original 0-10V to ±10V, which is convenient for debugging the forward and reverse rotation;
- 0V output can definitely reach 0V. Its performance far exceeds those of single power supply products. With this item, your dimmer can not be lit at all, and motor speed regulation can be completely stationary;
- The shell is made of ultra-thin matte ABS. The upper and lower covers are gapless, with a comfortable feel;
- Its software adds a custom quick adjustment function, which can be set to output only a few values and is convenient for rapid debugging of production.

Coarse and Fine Tuning:
- Fine-tuning mode: add or subtract 1 from the last number and multiply (coefficients 1-50)
- Coarse-tuning mode: add or subtract 1 from the last number and multiply (coefficients 1-50)
- Attention: The above two coefficients can be set separately
- Fine-tuning mode can be set to a minimum of 0.01mA/pulse
- Coarse-tuning mode can be set up to 5.00mA/pulse
- Attention: One turn of the knob is 20 pulses. Therefore, adjusting 0mA to 20mA in fine-tuning mode requires a maximum of 100 turns, while coarse mode requires at least 1/4 turn

Three Power Supply Modes:
1. Support DC15V-30V external power supply. It can share the 24V power supply of PLC and other equipment;
2. microUSB universal interface for Android. It can be connected to power bank/charger/computer USB port, etc.;
3. Built-in 1000mAh/3.7V lithium battery (Optional. Freely access to reserved charging and discharging circuit. When an external power supply is connected, it will automatically charge the battery);
Attention: Support 1-way power supply as well as multiple power supplies at the same time.

Check Electric Quantity of Built-in Lithium Battery:
Turn on the battery switch, press the "MODE" button for 1 second, the digital tube will flash and display the battery voltage for 5 seconds. The battery indicator indicates electric quantity:
Green: More than 90%
Yellow: More than 40%
Red: Less than 40%

Main Technical Parameters:
- External power supply DC15-30V, 1W (not charged) / 4W (charged)
- Optional 3.7V 1000mAh built-in lithium battery, maximum charging current 0.6A
- External microUSB-5V, current 0.2A (no charging)/0.8A (charging)
- Adjustable ±10V voltage output, adjustment accuracy 0.01V, error 0.5% calibrateable, maximum current 20mA, with short circuit protection
- Output current is adjustable from 0-22mA, the adjustment accuracy is 0.01mA, and the error is 0.5% calibrateable. Current sampling resistor, 10-500 ohms, can be short-circuited
- 4-digit display and two decimal places
- The encoder rotates one revolution, and the number of pulses is 20
- Working environment: 0-40°C and relative humidity < 80%

Package Included:
- 1 x Signal Generator