1. Киришүү
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. Орнотуу
2.1 Таңгактан чыгаруу жана текшерүү
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 Батареяны орнотуу
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.
- Батарея уясынын эшигин бекем жабыңыз.
2.3 Баштапкы күйгүзүү
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.

Сүрөт 1: Алдыңкы view of the Fluke 725 Multifunction Process Calibrator, showing the display and control buttons.
3. Иштөө нускамалары
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
- Тtage (V): Measure 0 to 30V, Source 0 to 10V. Resolution up to 0.01V.
- Учурдагы (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.
- RTDs: Measure and Source Resistance from 15 to 3200 ohm.
- Жыштык (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.
- басым: Source pressure (requires external pressure modules, sold separately).
3.3 Өркүндөтүлгөн функциялар
- Auto-Step and Auto-Ramp: Perform fast linearity tests using these automated features. Consult the on-screen menu or specific function buttons for activation.
- Loop Supply: The calibrator provides a 24V DC loop supply to power transmitters during testing, with simultaneous mA measurement capability.
- Арткы жарык: 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.

Сүрөт 4: Жакын пландан view of the Fluke 725 calibrator held in hand, displaying measurement readings.
4. Техникалык тейлөө
4.1 Батареяны алмаштыруу
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 Тазалоо
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 Сактоо
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. Кыйынчылыктарды
If the Fluke 725 does not operate as expected, review төмөнкү жалпы мүчүлүштүктөрдү оңдоо кадамдары:
- Күч жокБатареянын орнотулганын текшерип, батареялардын жаңы экенине ынаныңыз.
- Туура эмес окуулар: Verify test lead connections, ensure correct function selection, and check for proper calibration.
- Маселелерди көрсөтүү: 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. Техникалык шарттар
| Параметр | Диапазон | Резолюция | Тактык |
|---|---|---|---|
| Тtage (Source) | 0дан 10Вга чейин | 0.01V | 0.02% Rdg + 2 LSD |
| Тtage (өлчөө) | 0дан 30Вга чейин | 0.01V | 0.02% Rdg + 2 LSD |
| Тtage (өлчөө) | 0 - 100 мВ | 0.01 мВ | 0.02% Rdg + 2 LSD |
| Учурдагы (мА) | 0дөн 24 мАга чейин | 0.001 мА | 0.02% Rdg + 2 LSD |
| mV (TC terminals) | -10.00 мВдан 75.00 мВга чейин | 0.01 мВ | 0.025% of range + 1 LSD |
| Каршылык | 15-3200 Ом | 0.01-0.1 Ом | 0.10-1.0 Ом |
| Frequency (CPM) | 2.0 to 1000.0 CPM | 0.1 CPM | +/-0.05% |
| Жыштык (Гц) | 1 - 1000 Гц | 1 Гц | +/-0.05% |
| Жыштык (кГц) | 1.0 - 10.0 кГц | 0.1 кГц | +/-0.25% |
| Loop Supply | 24V DC | Жок | 10% тактык |
Экологиялык жана физикалык спецификациялар
- Максималдуу томtage: 30V
- Сактоо температурасы: -40 °Cден 71 °Cге чейин (-40 °F менен 160 °F)
- Иштөө температурасы: -10 °C менен 55 °C (14 °F менен 131 °F)
- Салыштырмалуу нымдуулук: 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)
- Вибрация: Random, 2g, 5-500 Hz
- Коопсуздук: CSA C22.2 No. 1010.1:1992
- Батареялар: Four AA alkaline batteries (included)
- Батареянын иштөө мөөнөтү: 25 hours typical
- Продукциянын өлчөмдөрү: 10 x 7.8 x 3.3 inches; 1 Pound
7. Кепилдик маалыматы
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. Колдоо жана байланыш
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 webсайтында же продуктунун таңгагында.
Өндүрүүчү: Fluke Corporation





