Fluke 28IIEX/ETL Intrinsically Safe True-RMS Digital Multimeter User Manual

1. Giriş

This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of the Fluke 28IIEX/ETL Intrinsically Safe True-RMS Digital Multimeter. This device is engineered for precise electrical measurements in potentially hazardous environments, offering robust performance and advanced safety features.

2. Təhlükəsizlik Məlumatı

WARNING: Read and understand all safety information before using this product. Failure to do so may result in serious injury or death.

2.1 Ümumi Təhlükəsizlik Təlimatları

• Always use the multimeter with the specified test leads and accessories.
• Do not use the multimeter if it appears damaged or is operating abnormally.
• Bütün yerli və milli təhlükəsizlik qaydalarına riayət edin.
• Ensure the correct function and range are selected before making measurements.
• Təhlükəli mühitlərdə tək işləməkdən çəkinin.

2.2 Intrinsically Safe Operation

The Fluke 28IIEX/ETL is designed for use in hazardous locations classified as:

• ATEX: II 2 G Ex ia IIC T4 Gb, II 2 D Ex ia IIIC T130°C Db, I M1 Ex ia I Ma
• NEC-500: Class I, Div 1, Groups A-D, 130 °C
• IEXEx: Ex ia IIC T4 Gb, Ex ia IIIC T130°C Db, Ex ia I Ma

These ratings ensure the device will not ignite explosive atmospheres under normal or fault conditions. Always ensure the device is used within its specified environmental and electrical limits for intrinsically safe operation.

2.3 Electrical Safety Ratings

The multimeter meets International Electrotechnical Commission (IEC) safety standard 61010 and is certified for:

• Category III 1000V: For measurements on building circuit installations (e.g., service panel parts, branch circuits, fixed installations).
• Category IV 600V: For measurements at the origin of the installation (e.g., electricity meters, primary over-current protection equipment).
• Çirklənmə dərəcəsi 2: Daxili istifadə üçün.

2.4 Ətraf Mühitin Mühafizəsi

The device is Ingress Protection (IP) certified IP67, meaning it is waterproof, dust-proof, and drop-proof, suitable for harsh industrial environments.

3. Məhsul bitdiview

The Fluke 28IIEX/ETL is a robust digital multimeter designed for reliability and accuracy. It features a large LCD display with a two-level bright white backlight for visibility in various lighting conditions.

Şəkil 1: Ön view of the Fluke 28IIEX/ETL Digital Multimeter. The image displays the device with its red protective holster, gray body, LCD screen showing '28.20 V AC', and the rotary dial for function selection. Below the dial are the input jacks for current, voltage, and common connections, along with safety warnings and certifications.

3.1 Əsas Xüsusiyyətlər

• True-RMS measurements for accurate readings on linear and non-linear loads.
• Auto- and manual-ranging capabilities.
• Tədbirlər cildtage, current, resistance, capacitance, frequency, temperature, conductance, and duty cycle.
• Performs continuity and diode tests.
• Low-pass filter for accurate voltage and frequency measurements on variable-speed motor drives.
• MIN/MAX/AVG and Peak Capture functions to record transients and measurement variations.
• Relative mode to remove test lead interference.
• Backlit keypad buttons and display for low-light conditions.
• Audible alarm for incorrect test lead connection.

4. Quraşdırma

4.1 Batareyanın quraşdırılması

The Fluke 28IIEX/ETL requires four (4) AA alkaline batteries for operation. To install or replace batteries:

1. Multimetrin söndürüldüyünə əmin olun.
2. Qoruyucu rezin qabığı çıxarın.
3. Locate and open the battery compartment cover on the rear of the device.
4. Insert four new AA alkaline batteries, observing the correct polarity markings.
5. Securely close the battery compartment cover and reattach the holster.

4.2 Test aparatlarının birləşdirilməsi

Always connect test leads to the appropriate input jacks for the measurement being performed. The multimeter will sound an alarm if leads are connected incorrectly for the selected function.

• COM Jack: Connect the black test lead to the common (COM) jack for all measurements.
• VΩHz Jack: Connect the red test lead to this jack for voltage, resistance, frequency, capacitance, and diode tests.
• mAµA Jack: Connect the red test lead to this jack for current measurements up to 400mA. This input is fused.
• 10A Max Fused Jack: Connect the red test lead to this jack for current measurements up to 10A. This input is fused.

5. Əməliyyat Təlimatları

Turn the rotary switch to the desired function. The multimeter defaults to auto-ranging mode, automatically selecting the correct measurement range. Press the 'RANGE' button to switch to manual ranging.

5.1 Ölçmə Cildtage (AC/DC)

1. Qara telini COM-a, qırmızı telini isə VΩHz-ə qoşun.
2. Turn the rotary switch to V~ (AC Voltage) və ya V- (DC Cildtagvə).
3. Connect the test leads across the circuit or component to be measured.

5.2 Measuring Current (mA/A/µA)

WARNING: Never attempt to measure current by connecting the multimeter in parallel with a voltage mənbəyi. Bu, sayğaca zərər verə və xəsarətə səbəb ola bilər.

1. Connect the black lead to COM. Connect the red lead to mAµA for small currents or 10A Max Fused for larger currents.
2. Turn the rotary switch to mA/A~ (AC Current) or mA/A- (DC Current).
3. Dövrəni açın və multimetri yüklə ardıcıl olaraq birləşdirin.

5.3 Müqavimətin Ölçülməsi (Ω)

1. Qara telini COM-a, qırmızı telini isə VΩHz-ə qoşun.
2. Turn the rotary switch to Ω.
3. Ensure the circuit is de-energized. Connect the test leads across the component.

5.4 Davamlılıq Testi

1. Qara telini COM-a, qırmızı telini isə VΩHz-ə qoşun.
2. Dönər açarı davamlılıq simvoluna (dinamik işarəsi) çevirin.
3. Ensure the circuit is de-energized. Connect the test leads across the component. An audible tone indicates continuity.

5.5 Diod Testi

1. Qara telini COM-a, qırmızı telini isə VΩHz-ə qoşun.
2. Dönər açarı diod simvoluna çevirin.
3. Ensure the circuit is de-energized. Connect the test leads across the diode. The display shows the forward voltage düşmək.

5.6 Measuring Capacitance (F)

1. Qara telini COM-a, qırmızı telini isə VΩHz-ə qoşun.
2. Turn the rotary switch to the capacitance symbol.
3. Ensure the capacitor is discharged before connecting the test leads.

5.7 Measuring Frequency (Hz) and Duty Cycle (%)

1. Qara telini COM-a, qırmızı telini isə VΩHz-ə qoşun.
2. Turn the rotary switch to Hz.
3. Connect the test leads across the signal source. Press the '%' button to view vəzifə dövrü.

5.8 Temperaturun Ölçülməsi (°C/°F)

1. Connect the K-type thermocouple (included) to the VΩHz and COM jacks, observing polarity.
2. Turn the rotary switch to the temperature symbol.
3. Place the thermocouple tip on the object to be measured.

5.9 Xüsusi funksiyalar

• MIN MAX: Press to record minimum, maximum, and average readings over time.
• PEAK MIN MAX: Captures fast transients.
• REL Δ (Relative Mode): Subtracts the stored reading from subsequent readings, useful for nulling out test lead resistance.
• SAXLAYIN: Cari ekran oxumasını dondurur.

6. Baxım

6.1 Təmizləmə

Kassanı reklamla silinamp parça və yumşaq yuyucu vasitə. Aşındırıcı maddələr və ya həlledicilərdən istifadə etməyin. İstifadədən əvvəl cihazın quru olduğundan əmin olun.

6.2 Batareyanın dəyişdirilməsi

Batareyanın dəyişdirilməsi təlimatları üçün 4.1-ci bölməyə baxın. Ekranda batareyanın az olduğu göstəricisi göründükdə batareyaları dəyişdirin.

6.3 Sigortanın dəyişdirilməsi

WARNING: To prevent injury or damage to the multimeter, use only specified replacement fuses with the correct ampqəzəb, cildtage, və reytinqləri kəsin.

The Fluke 28IIEX/ETL has two internal fuses:

• 10A Max Fused: For the 10A current input.
• 400mA Fused: For the mA/µA current input.

Fuse replacement should only be performed by qualified personnel. Consult the full service manual or contact Fluke customer support for detailed instructions.

7. Giderme

If the multimeter is not functioning as expected, review aşağıdakı ümumi məsələlər:

• Ekran yoxdur və ya zəif ekran: Batareyaları yoxlayın və lazım olduqda dəyişdirin.
• Yanlış oxunuşlar: Ensure test leads are correctly connected, the function and range are appropriate for the measurement, and the circuit is de-energized for resistance/continuity/diode tests.
• Cari ölçmə işləmir: Check the fuses for the respective current input (10A or 400mA). Replace if blown.
• Multimeter does not respond: Turn the unit off and then on again. If the issue persists, remove batteries for a few minutes and reinsert.

For persistent issues or complex problems, contact Fluke customer support.

8. Spesifikasiyalar

9. Zəmanət və Dəstək

Fluke Corporation products are designed for reliability and performance. For warranty information, technical support, or service, please visit the official Fluke website or contact your local Fluke representative.

Rəsmi Fluke Websayt: www.fluke.com