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

1. Ievads

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. Drošības informācija

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

2.1 Vispārīgi drošības norādījumi

• Always use the multimeter with the specified test leads and accessories.
• Do not use the multimeter if it appears damaged or is operating abnormally.
• Ievērojiet visus vietējos un valsts drošības noteikumus.
• Pirms mērījumu veikšanas pārliecinieties, vai ir izvēlēta pareizā funkcija un diapazons.
• Avoid working alone in hazardous environments.

2.2 Pašdroša darbība

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).
• 2. piesārņojuma pakāpe: Lietošanai iekštelpās.

2.4 Vides aizsardzība

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

3. Produkts beidziesview

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.

1. attēls. Priekšpuse 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 Galvenās funkcijas

• True-RMS measurements for accurate readings on linear and non-linear loads.
• Auto- and manual-ranging capabilities.
• Pasākumi voltage, 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. Iestatīšana

4.1 Akumulatora uzstādīšana

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

1. Pārliecinieties, vai multimetrs ir izslēgts.
2. Noņemiet gumijas aizsargapvalku.
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 Testa vadu pievienošana

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 domkrats: Connect the black test lead to the common (COM) jack for all measurements.
• VΩHz ligzda: Connect the red test lead to this jack for voltage, resistance, frequency, capacitance, and diode tests.
• mA ligzda: 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. Lietošanas instrukcijas

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. Mērīšana Voltage (maiņstrāva/līdzstrāva)

1. Pievienojiet melno vadu pie COM un sarkano vadu pie VΩHz.
2. Turn the rotary switch to V~ (AC Voltage) vai V- (līdzstrāvas tilpumstagun).
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 source. This can damage the meter and cause injury.

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. Open the circuit and connect the multimeter in series with the load.

5.3 Pretestības (Ω) mērīšana

1. Pievienojiet melno vadu pie COM un sarkano vadu pie VΩHz.
2. Turn the rotary switch to Ω.
3. Pārliecinieties, vai ķēdē nav strāvas. Pievienojiet testa vadus komponentam.

5.4. Nepārtrauktības pārbaude

1. Pievienojiet melno vadu pie COM un sarkano vadu pie VΩHz.
2. Turn the rotary switch to the continuity symbol (speaker icon).
3. Ensure the circuit is de-energized. Connect the test leads across the component. An audible tone indicates continuity.

5.5. Diodes tests

1. Pievienojiet melno vadu pie COM un sarkano vadu pie VΩHz.
2. Turn the rotary switch to the diode symbol.
3. Ensure the circuit is de-energized. Connect the test leads across the diode. The display shows the forward voltage piliens.

5.6 Measuring Capacitance (F)

1. Pievienojiet melno vadu pie COM un sarkano vadu pie VΩHz.
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. Pievienojiet melno vadu pie COM un sarkano vadu pie VΩHz.
2. Turn the rotary switch to Hz.
3. Connect the test leads across the signal source. Press the '%' button to view cikls.

5.8 Measuring Temperature (°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. Īpašas funkcijas

• 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.
• TURĒT: Iesaldē pašreizējo displeja rādījumu.

6. Apkope

6.1. Tīrīšana

Noslaukiet korpusu ar reklāmuamp drānu un maigu mazgāšanas līdzekli. Nelietojiet abrazīvus līdzekļus vai šķīdinātājus. Pirms lietošanas pārliecinieties, ka ierīce ir sausa.

6.2. Akumulatora nomaiņa

Norādījumus par bateriju nomaiņu skatiet 4.1. sadaļā. Nomainiet baterijas, kad displejā parādās zema bateriju uzlādes līmeņa indikators.

6.3 Drošinātāja nomaiņa

WARNING: To prevent injury or damage to the multimeter, use only specified replacement fuses with the correct amplaikmets, sējtage, un pārtraukt vērtējumus.

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. Traucējummeklēšana

If the multimeter is not functioning as expected, review šādas bieži sastopamas problēmas:

• Nav displeja vai blāvs displejs: Pārbaudiet baterijas un, ja nepieciešams, nomainiet tās.
• Nepareizi rādījumi: 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.
• Strāvas mērīšana nedarbojas: 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. Specifikācijas

9. Garantija un atbalsts

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.

Oficiālais Fluke Webvietne: www.fluke.com