Zavedení
The Luqeeg Signal Generator is a versatile device designed for generating DC voltage and current outputs, as well as PWM pulse square waves. It also features input measurement capabilities, making it suitable for a wide range of applications including PLC controller testing, LED calibration, and general electronic circuit analysis. This manual provides detailed instructions for the proper setup, operation, and maintenance of your signal generator.
1. Nastavení a první použití
1.1 Vybalení
Opatrně vyjměte všechny součásti z obalu. Balení by mělo obsahovat:
- 1 x Signal Generator
- 4 x Klipy
- 1 x USB kabel
- 1 x Uživatelská příručka (tento dokument)

Obrázek 1.1: Included alligator clips for connections.
1.2 Zařízení je u konceview
Familiarize yourself with the main components of the signal generator:

Obrázek 1.2: Signal Generator Component Diagram.
- Pluggable terminal block (3.81-9P)
- Symbol terminálu
- 2 inch TFT color display screen
- Šipka dolů
- Digital encoder adjustment knob (with button, can be pressed)
- Levá klávesa Shift
- Vypínač
- Kontrolka nabíjení
- USB port
1.3 Možnosti napájení
The signal generator offers flexible power supply methods:
- External 24VDC Terminal: Connect a 24VDC power source to the designated terminals.
- USB Type-C: Use the provided USB Type-C cable to connect to a power adapter or computer.
- Rechargeable Li Battery: The device supports an internal rechargeable lithium battery (not included). When a battery is installed, it can be charged via USB Type-C or external 24VDC while in use.

Obrázek 1.3: Multiple power supply methods for the signal generator.
1.4 Schéma připojení
Refer to the following diagram for proper terminal connections. Terminal numbers are read from left to right (1-9).

Obrázek 1.4: Terminal Connection Diagram.
- Zem (1): Power supply negative (input). This is the same as 9-GND and can be arbitrarily connected.
- 24V (2): Power supply positive (input). External power input to power or charge the meter.
- mA i (3): Current signal input positive.
- Vi (4): svtage signal input positive.
- LP+ (5): EXT 24V input (passive mode).
- mA o (6): Current signal output positive. The current output is commonly used in active mode. The output of the meter 6-mAo 9-GND corresponds to positive and negative current input of the PLC.
- Vo (7): svtage signal output positive. The voltage výstup 7-Vo 9-GND corresponds to the positive and negative voltage input of the PLC, or it can be measured directly with a multimeter.
- PWM (8): PWM output positive.
- Zem (9): Signal common ground (internal connect to ①-GND).
Current Sink Two-Wire Output: Připojte 24V + k 5-LP+ terminal of the meter head, and output from the 6-mAo terminal to control the current of the external 24V. The meter head is equivalent to a variable resistor, so it is called passive mode. Direct measurement cannot detect the current, and it can be directly replaced with a passive two-wire pressure/temperature sensor, etc.
2. Návod k obsluze
2.1 Uživatelské rozhraní a displej
The device features a 2.0-inch TFT color screen (320x240) that displays all values clearly on one screen. It supports both Chinese and English interface switching. The large digital encoder knob allows for easy and precise adjustments.

Obrázek 2.1: TFT Color Screen Display.

Obrázek 2.2: Digital Encoder Adjustment Knob.
2.2 DC svtage a proudový výstup
- svtage DC Analog Output Range: ±12V (with short circuit protection).
- Current DC Analog Output Range: 0-24mA (short circuit protected).
- Nastavení výstupu: Users can freely set the output range, such as 0-20mA, 4-20mA, 0-10V, 0-5V, etc. The corresponding engineering display values can also be set.
2.3 PWM Pulse Square Wave Output
- Nastavitelná frekvence: 1-150kHz.
- Adjustable Duty Cycle: 0-100 %.
- Vysoká úroveň: 5V.
- Aplikace: PWM pulse output high level is 5V, low level is 0V. It can directly drive buzzers, LEDs, optocouplers, etc., or connect to 12V/24V systems through external level conversion modules.

Obrázek 2.3: Signal generator connected and operating.
2.4 Input Measurement
- svtage Rozsah měření: ±50V.
- Aktuální rozsah měření: ±50mA.
3. Údržba
To ensure the longevity and optimal performance of your Luqeeg Signal Generator, follow these maintenance guidelines:
- Čištění: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners or solvents, which can damage the casing nebo obrazovka.
- Skladování: Zařízení skladujte na chladném a suchém místě mimo dosah přímého slunečního záření, extrémních teplot a vysoké vlhkosti.
- Zacházení: Handle the device with care to prevent physical damage. Avoid dropping it or exposing it to strong impacts.
- Battery Care (if installed): If using a rechargeable Li battery, ensure it is charged regularly, even if not in frequent use, to maintain battery health. Do not expose the battery to extreme heat or puncture it.
- Ochranná fólie: The surface protective film of the sticker can be peeled off for clearer viewIng.
4. Řešení problémů
This section addresses common issues you might encounter with your signal generator.
- Zařízení se nezapíná:
- Zkontrolujte, zda je vypínač v poloze „ON“.
- Ujistěte se, že je kabel USB typu C bezpečně připojen a že je zdroj napájení aktivní.
- If using external 24VDC, verify the power supply is connected correctly to the terminals and is providing the correct voltage.
- If using a rechargeable battery, ensure it is charged.
- Žádný výstupní signál:
- Verify that the output parameters (voltage, current, PWM frequency, duty cycle) are set correctly on the display.
- Check all connections to the output terminals for proper contact.
- Ensure the device is powered on and functioning.
- Incorrect Output Readings:
- Confirm that the measurement range is appropriate for the signal being measured.
- Check the calibration settings if custom ranges have been configured.
- Ujistěte se, že všechna připojení jsou bezpečná a bez rušení.
- PWM Output Compatibility:
Poznámka: The PWM output of this device is not suitable for 12V or 2V systems, as 5V is regarded as a low level in these systems. For such applications, an external level conversion module is required.
5. Technické specifikace
| Funkce | Specifikace |
|---|---|
| Materiál produktu | ABS |
| svtage DC Analog Output Range | ±12V (with Short Circuit Protection) |
| svtage Rozsah měření | ±50V |
| Current DC Analog Output Range | 0-24mA (Short Circuit Protected) |
| Aktuální rozsah měření | ± 50 mA |
| PWM Pulse Square Wave Output Frequency | 1-150kHz (Adjustable) |
| PWM Pulse Square Wave Output Duty Cycle | 0-100% (Adjustable) |
| PWM High Level | 5V |
| Zobrazit | 2.0 inch TFT color screen (320x240), supports Chinese and English |
| Kodér | Digital encoder, large knob adjustment |
| Způsoby napájení | Terminal external 24VDC / USB Type-C / 1 x Rechargeable Li Battery (not included) |
| Rozměry balení | 5.91 x 3.54 x 1.97 palce |
| Hmotnost položky | 7.8 unce |
| Číslo modelu | Luqeegbnay3rfesc |
| ASIN | B0GDFZ67MF |
6. Informace o záruce
Luqeeg products are manufactured to high quality standards. This product is covered by a manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included with your product or contact Luqeeg customer support for specific warranty terms and conditions. Keep your purchase receipt as proof of purchase for warranty claims.
7. Zákaznická podpora
For technical assistance, troubleshooting, or any questions regarding your Luqeeg Signal Generator, please visit the official Luqeeg store or contact their customer support. You can find more information and contact details at the Luqeeg Store on Amazon.