1. Введение
The INSTRUKART Keller LEO2 Digital Pressure Gauge is a compact, battery-powered instrument designed for precise pressure measurement in various industrial applications, servicing, and calibration/testing. It features a highly accurate piezoresistive pressure cell, individually adjusted for optimal performance, ensuring a high level of accuracy. This manual provides essential information for the safe and effective use of your LEO2 Digital Pressure Gauge.
2. Информация по технике безопасности
WARNING: Please read this manual carefully before operating the device. Failure to follow instructions may result in damage to the device or personal injury.
- Не подвергайте устройство воздействию экстремальных температур, влажности или агрессивных сред.
- Ensure the pressure connection is securely fastened before applying pressure.
- Do not exceed the specified pressure ranges.
- Replace batteries only with the recommended type (CR 2430) and ensure correct polarity.
- Do not attempt to disassemble or repair the device yourself. Refer servicing to qualified personnel.
3. Содержимое упаковки
Убедитесь, что в вашей посылке присутствуют все перечисленные ниже предметы:
- 1 x Keller LEO2 Digital Pressure Gauge
- 1 х Руководство по эксплуатации
- 1 x G 1/4" Adapter
4. Особенности продукта
The Keller LEO2 Digital Pressure Gauge offers a range of advanced features for reliable pressure measurement:
- Microprocessor-Controlled: Ensures highly accurate and versatile pressure measurement.
- Цифровая индикация: Clear display of actual pressure, along with maximum (Max.) and minimum (Min.) pressure values recorded since the last reset.
- Piezoresistive Pressure Transducer: Equipped with an internal EEPROM for precise and stable readings.
- Wide Pressure Ranges: Available in various ranges, including 0 to 100 bar (resolution 1 mbar), -1 to 30 bar (resolution 10 mbar), 0 to 300 bar (resolution 100 mbar), and 0 to 700 bar (resolution 200 mbar).
- Длительный срок службы батареи: Provides up to 1000 hours of continuous operation using 3V CR 2430 batteries.
- Высокая точность: Less than 0.1 %FS (Full Scale).
- Прочная конструкция: IP 65 protection rating, suitable for various industrial environments.
- Компактные размеры: Measures 59 x 95 x 32 mm and weighs 125 g.
- Standard Pressure Connection: Features a 7/16"-20 UNF connection, with a G 1/4" adapter included for versatility.
5. Продукт закончилсяview

Рисунок 1: Передняя часть view of the LEO2 Digital Pressure Gauge, displaying current and maximum pressure values.

Рисунок 2: Сторона view illustrating the robust pressure connection at the base of the gauge.

Рисунок 3: Передняя часть view of the gauge with the G 1/4" adapter securely attached.

Рисунок 4: Наклонный view highlighting the clear digital display and user interface buttons.

Рисунок 5: Сзади view, indicating the location of the battery compartment for CR 2430 batteries.

Figure 6: The LEO2 gauge connected to a flexible hose, demonstrating its adaptability for various setups.

Figure 7: The LEO2 Digital Pressure Gauge neatly stored within its protective carrying case.
6. Настройка
6.1. Установка аккумулятора
- Locate the battery compartment cover at the rear of the device (refer to Figure 5).
- Осторожно откройте крышку.
- Insert the 3V CR 2430 batteries, ensuring correct polarity as indicated inside the compartment.
- Надежно закройте крышку батарейного отсека.
6.2. Pressure Connection
- The LEO2 features a 7/16"-20 UNF pressure connection. An adapter for G 1/4" is included for broader compatibility.
- Attach the appropriate adapter (if needed) to the gauge's pressure connection.
- Securely fasten the gauge (with or without adapter) to your pressure source. Ensure all connections are tight and leak-free. Use appropriate sealing materials (e.g., PTFE tape) if necessary to prevent leaks.
7. Операция
7.1. Включение/выключение питания
The LEO2 Digital Pressure Gauge powers on automatically when any button is pressed. To conserve battery life, the device will automatically power off after a period of inactivity.
7.2. Отображение показаний
The gauge features a dual display:
- Верхний дисплей: Shows the current actual pressure reading.
- Bottom Display: Shows either the maximum (MAX) or minimum (MIN) pressure recorded since the last reset.
7.3. Selecting Display Mode (MAX/MIN)
Use the 'SELECT' button (typically on the left) to toggle between displaying the MAX and MIN pressure values on the bottom screen.
7.4. Resetting MAX/MIN Values
To clear the recorded MAX and MIN pressure values, press and hold the 'ENTER' button (typically on the right) until the values reset.
8. Техническое обслуживание
8.1. Замена батареи
When the battery indicator appears on the display or the device fails to power on, it is time to replace the batteries. Refer to section 6.1 'Battery Installation' for detailed instructions.
8.2. Уборка
Очистите внешнюю поверхность устройства мягкой, damp Ткань. Не используйте абразивные чистящие средства, растворители или едкие химикаты, так как они могут повредитьasing or display. Ensure no liquid enters the pressure connection or display area.
8.3. Хранение
When not in use for extended periods, store the LEO2 Digital Pressure Gauge in its protective carrying case (refer to Figure 7) in a dry, cool place, away from direct sunlight, extreme temperatures, and corrosive substances.
9. Поиск Неисправностей
If you encounter issues with your LEO2 Digital Pressure Gauge, refer to the following common troubleshooting steps:
- Нет изображения / Устройство не включается:
- Проверьте заряд аккумулятора.
- Убедитесь, что батареи установлены правильно и с соблюдением полярности.
- Replace batteries with new CR 2430 cells if necessary.
- Неточные показания:
- Verify that the pressure connection is secure and free of leaks.
- Ensure the device is operating within its specified temperature and pressure ranges.
- Check for any physical damage to the sensor or connection.
- Display Errors or Unresponsive Buttons:
- Try resetting the device by temporarily removing and then reinserting the batteries.
- Если проблема не устранена, обратитесь в службу поддержки клиентов для получения дополнительной помощи.
10. Технические характеристики
| Особенность | Спецификация |
|---|---|
| Бренд | ИНСТРУКАРТ |
| Модель | ЛЕО2 |
| Размеры продукта | 3.74 x 2.32 x 1.26 дюйма (59 x 95 x 32 мм) |
| Вес товара | 125 грамм (4.41 унции) |
| Материал | Stainless Steel (for pressure connection) |
| Точность | < 0.1 %FS |
| Рабочая температура | -20 to 70 °C / 0 to 50 °C |
| Источник питания | 3V batteries, Type CR 2430 |
| Срок службы батареи | 1000 часа непрерывной работы |
| Рейтинг защиты | ИП 65 |
| Соединение под давлением | 7/16”-20 UNF (Adapter G 1/4” included) |
| Pressure Ranges (Exampв) | 0 to 100 bar (Resolution: 1 mbar) -1 to 30 bar (Resolution: 10 mbar) 0 to 300 bar (Resolution: 100 mbar) 0 to 700 bar (Resolution: 200 mbar) |
11. Гарантия и поддержка
For detailed warranty information, technical support, or service inquiries regarding your INSTRUKART Keller LEO2 Digital Pressure Gauge, please contact INSTRUKART customer service. Please retain your purchase receipt as proof of purchase for warranty claims.




