1. Вступ
This manual provides comprehensive instructions for the safe and effective use of the Fluke 725 Multifunction Process Calibrator. The Fluke 725 is a robust and user-friendly field calibrator designed for testing and calibrating a wide range of process parameters. It combines measurement and source functions to facilitate accurate calibration of transmitters and other industrial equipment.
Key capabilities include sourcing and simulating volts, mA, thermocouples, RTDs, frequency, ohms, and pressure. It also supports flow meter testing with frequency and CPM functions, offers fast linearity tests with auto-step and auto-ramp features, and can power transmitters using its loop supply while simultaneously measuring mA. The device is designed for durability and ease of use in various industrial environments.
2. Налаштування
2.1 Розпакування та перевірка
Upon receiving your Fluke 725, carefully unpack the contents. The package should include the Multifunction Process Calibrator unit. Inspect the calibrator for any signs of damage that may have occurred during shipping. If any damage is observed, contact your supplier immediately.
2.2 Встановлення батареї
The Fluke 725 operates on four AA alkaline batteries, which are included. The battery compartment is located on the rear of the unit and features an easy-access door for convenient changes.
- Locate the battery compartment door on the back of the calibrator.
- Open the door by sliding or unlatching it according to the markings.
- Insert four AA alkaline batteries, ensuring correct polarity as indicated inside the compartment.
- Щільно закрийте кришку батарейного відсіку.
2.3 Початкове ввімкнення
Press the power button (typically marked with a circle and a vertical line) to turn on the calibrator. The display should illuminate, indicating the device is ready for operation.
Малюнок 1: Спереду view of the Fluke 725 Multifunction Process Calibrator, showing the display and control buttons.
3. Інструкція з експлуатації
The Fluke 725 allows simultaneous viewing of input and output on its easy-to-read measure/source screen.
3.1 Basic Measurement and Sourcing
The calibrator features dedicated buttons for various measurement and source functions. Use the 'MEAS' button to select measurement mode and the 'SOURCE' button to select source mode. Specific parameters can be selected using the corresponding function buttons (e.g., V mA, TC, RTD, Hz, Ohms).
3.2 Parameter Specific Operations
- томtagе (V): Measure 0 to 30V, Source 0 to 10V. Resolution up to 0.01V.
- Струм (мА): Measure and Source 0 to 24 mA. Resolution 0.001 mA. Max load for source is 1000 ohm.
- Thermocouples (TC): Measure and Source mV (TC terminals) from -10.00 mV to 75.00 mV.
- RTD: Measure and Source Resistance from 15 to 3200 ohm.
- Частота (Гц): Measure and Source 2.0 to 1000.0 CPM, 1 to 1000 Hz, 1.0 to 10.0 kHz. For frequency source, the waveform is a 5V p-p squarewave with a -0.1V offset.
- Ohms (Ω): Measure and Source resistance.
- Тиск: Source pressure (requires external pressure modules, sold separately).
3.3 Додаткові функції
- Auto-Step and Auto-Ramp: Perform fast linearity tests using these automated features. Consult the on-screen menu or specific function buttons for activation.
- Подача петлі: The calibrator provides a 24V DC loop supply to power transmitters during testing, with simultaneous mA measurement capability.
- Підсвічування: Activate the backlight for improved visibility in low-light conditions.
- Store Test Setups: Frequently used test configurations can be stored and recalled for efficiency.
Figure 2: A technician utilizing the Fluke 725 to connect and calibrate industrial process equipment.
Figure 3: The Fluke 725 calibrator connected to a pressure transmitter, demonstrating its application in process calibration.
Рисунок 4: Крупний план view of the Fluke 725 calibrator held in hand, displaying measurement readings.
4. Технічне обслуговування
4.1 Заміна батареї
When the battery indicator appears on the display, replace the four AA alkaline batteries promptly to ensure continued operation and accuracy. Refer to Section 2.2 for battery installation instructions.
4.2 Очищення
To clean the calibrator, wipe the case with a damp cloth and a mild detergent. Do not use abrasive cleaners, solvents, or harsh chemicals. Ensure the device is powered off and disconnected from any circuits before cleaning.
4.3 Зберігання
Store the Fluke 725 within the specified storage temperature range of -40 °C to 71 °C (-40 °F to 160 °F). For prolonged storage, remove the batteries to prevent leakage.
5. Вирішення проблем
If the Fluke 725 does not operate as expected, review наступні загальні кроки з усунення несправностей:
- Немає живлення: Check battery installation and ensure batteries are fresh.
- Неправильні показники: Verify test lead connections, ensure correct function selection, and check for proper calibration.
- Проблеми з відображенням: If the display is dim, activate the backlight or replace batteries.
- Function Not Responding: Power cycle the unit (turn off, then on). If the issue persists, consult the manufacturer's support resources.
For specific error codes or advanced troubleshooting, refer to the official Fluke support documentation or contact Fluke customer service.
6. Технічні характеристики
| Параметр | Діапазон | роздільна здатність | Точність |
|---|---|---|---|
| томtage (Source) | від 0 до 10 В | 0.01 В | 0.02% Rdg + 2 LSD |
| томtage (Measure) | від 0 до 30 В | 0.01 В | 0.02% Rdg + 2 LSD |
| томtage (Measure) | від 0 до 100 мВ | 0.01 mV | 0.02% Rdg + 2 LSD |
| Струм (мА) | від 0 до 24 мА | 0.001 мА | 0.02% Rdg + 2 LSD |
| mV (TC terminals) | -10.00 мВ до 75.00 мВ | 0.01 mV | 0.025% of range + 1 LSD |
| опір | від 15 до 3200 Ом | від 0.01 до 0.1 Ом | від 0.10 до 1.0 Ом |
| Frequency (CPM) | 2.0 to 1000.0 CPM | 0.1 CPM | +/-0.05% |
| Частота (Гц) | від 1 до 1000 XNUMX Гц | 1 Гц | +/-0.05% |
| Частота (кГц) | від 1.0 до 10.0 кГц | 0.1 кГц | +/-0.25% |
| Подача петлі | 24 В постійного струму | N/A | 10% точність |
Екологічні та фізичні характеристики
- Максимальний об'ємtage: 30В
- Температура зберігання: -40 °C до 71 °C (-40 °F до 160 °F)
- Робоча температура: від -10 °C до 55 °C (від 14 °F до 131 °F)
- Відносна вологість: 95% (10 to 35 °C), 75% (30 to 40 °C), 45% (40 to 50 °C), 35% (50 to 55 °C)
- Шок: 30g, 11ms, half-sine shock (or 1-meter drop test)
- вібрація: Random, 2g, 5-500 Hz
- Безпека: CSA C22.2 No. 1010.1:1992
- Акумулятори: Four AA alkaline batteries (included)
- Термін служби батареї: 25 hours typical
- Розміри продукту: 10 x 7.8 x 3.3 inches; 1 Pound
7. Інформація про гарантію
The Fluke 725 Multifunction Process Calibrator comes with a three-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. For detailed warranty terms and conditions, please refer to the official Fluke warranty statement or contact Fluke customer support.
8. Підтримка та контакти
For technical assistance, service, or additional information regarding your Fluke 725 Multifunction Process Calibrator, please visit the official Fluke Corporation website or contact their customer support department. Contact details can typically be found on the Fluke webсайту або в упаковці продукту.
Виробник: Fluke Corporation
