Introduction
The LILYTECH ZL-7800A is a high-precision thermo-hygrometer designed for accurate measurement and display of temperature and humidity. Featuring a Sensirion SHT41 sensor, it provides reliable readings for various applications. This manual provides detailed instructions for setup, operation, and maintenance of your ZL-7800A device.

Техникалык шарттар
The following table outlines the technical specifications of the LILYTECH ZL-7800A Thermo-Hygrometer:
| Өзгөчөлүк | Спецификация |
|---|---|
| Батарея | 3V (CR2032) |
| Өлчөмү | (W)74x(L)35x(H)12(mm) |
| Температураны өлчөө диапазону | -20~120°C ±0.01°C |
| Нымдуулукту өлчөө диапазону | 0~100%RH ±0.01%RH |
| Сенсор | SHT41 |
| Температуранын тактыгы | ±0.2°C |
| Нымдуулуктун тактыгы | ± 2% RH |
| Дисплей түрү | LED дисплей |
| Байланыш интерфейси | Сериялык порт |
| IP рейтинги | IP43 |

Жайгашуу
The ZL-7800A Thermo-Hygrometer is designed for straightforward setup. Follow these steps to get your device ready for use:
- Батарея орнотуу: The device uses a 3V CR2032 battery. Locate the battery compartment, typically on the side or back of the unit (refer to Figure 3 for visual guidance). Insert the CR2032 battery, ensuring correct polarity.
- Жайгашкан жери: Position the thermo-hygrometer in the desired location, ensuring it is not exposed to direct sunlight, extreme drafts, or sources of heat/cold that could affect readings.
- Баштапкы күйгүзүү: Once the battery is installed, the device should power on automatically and display current temperature and humidity readings.

Иштөө нускамалары
The ZL-7800A features a simple interface with "Up" and "Down" buttons for navigation and settings adjustments (see Figure 4).

Саатты жөндөө
- Press and hold the "Down" button for 3 seconds to enter the clock settings. The hour and minute values will flash simultaneously.
- Press the "Down" button again; the hour will flash. Use the "Up" button to modify the hour value.
- Press the "Down" button again; the minute will flash. Use the "Up" button to modify the minute value.
- Press the "Down" button again to save the settings and exit.
- The status will exit if there is no key operation for 20 seconds, and the settings will not be saved.
Цельсийди Фаренгейтке которуу
- Press the "Up" button to cycle between Fahrenheit and Celsius display modes.
Энергияны үнөмдөө режими
- Press the "Down" button to cycle between normal mode and power-saving mode. An icon light indicates power-saving mode.
Техникалык тейлөө
To ensure the longevity and accuracy of your ZL-7800A Thermo-Hygrometer, follow these maintenance guidelines:
- Тазалоо: Gently wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water.
- Батареяны алмаштыруу: Качан аз көлөмtage alarm icon lights up, the battery voltage is low and needs to be replaced. Use a new 3V CR2032 battery.
- Сактагыч: If storing the device for an extended period, remove the battery to prevent leakage. Store in a cool, dry place away from direct sunlight and extreme temperatures.
Проблемаларды чечүү
If you encounter issues with your ZL-7800A, refer to the following common problems and solutions:
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Дисплей бош же күңүрт | Батарея аз же түгөндү; батарея туура эмес орнотулган. | Туура полярдуулукту камсыз кылуу менен CR2032 батареясын алмаштырыңыз. |
| Туура эмес окуулар | Sensor obstruction; device placed in an unsuitable environment (e.g., direct sunlight, near heat source). | Ensure the sensor is clear. Relocate the device to a stable environment. |
| Орнотуулар сакталбай жатат | Exited settings mode before saving; battery low. | Ensure you press the "Down" button to save settings after adjustment. Replace battery if low voltage alarm is active. |
Колдонуучу сунуштар
- For consistent readings, avoid frequently moving the device. Allow it to stabilize in a new location for at least 15-30 minutes.
- The power-saving mode can significantly extend battery life, especially if continuous display is not required.
Кепилдик жана колдоо
Кепилдик маалыматы же техникалык колдоо алуу үчүн сатуучуга же өндүрүүчүгө түздөн-түз кайрылыңыз. Сатып алганыңыздын далили катары сатып алуу дүмүрчөгүңүздү сактаңыз.





