Návod k obsluze digitálního multimetru Crenova 890Z

1. Úvod a konecview

The Crenova 890Z Digital Multimeter is a versatile and reliable tool designed for accurate electrical measurements. It features a 6000-count True RMS display, providing precise readings for various parameters. This multimeter is suitable for a wide range of applications, including industrial, household, and automotive electrical testing.

This manual provides detailed instructions on how to safely and effectively use your Crenova 890Z Digital Multimeter. Please read it thoroughly before operation.

This image displays the Crenova 890Z Digital Multimeter along with its comprehensive set of accessories, including test leads, alligator clips, a protective carrying case, and AA batteries, highlighting its readiness for immediate use.

2. Bezpečnostní informace

Your safety is paramount. The Crenova 890Z Multimeter is designed with safety in mind, meeting IEC61010 and CAT III standards. It incorporates double fuse protection against burnout and overload. The durable silicone cover provides additional protection against damage and electric shock.

Obecná bezpečnostní opatření:

• Always ensure the test leads are correctly connected to the appropriate input jacks for the desired measurement.
• Nepřekračujte maximální vstupní hodnoty uvedené pro každý rozsah.
• Nikdy neměřte objemtage on circuits with power exceeding 600V.
• Při práci s elektrickými obvody pod napětím dbejte zvýšené opatrnosti.
• If the low battery indicator appears, replace the batteries immediately to ensure accurate readings.
• Nepoužívejte multimetr, pokud se jeví poškozený nebo nefunguje správně.

This image illustrates the internal design of the Crenova 890Z Multimeter, highlighting its double fuse protection (600mA, 250V and 10A, 250V) which safeguards against overload and burnout, ensuring operational safety.

3. Vlastnosti a komponenty produktu

The Crenova 890Z Multimeter is equipped with several features for enhanced usability and accurate measurements:

• 6000-Count LCD Display: Provides clear and precise digital readings.
• Measurement Range Selection Switch: A central rotary dial for selecting various measurement functions.
• Funkční tlačítka: Includes HOLD (data hold), SELECT (mode switching), and backlight/flashlight activation.
• Test Lead Holders: Convenient slots on the back for storing test leads.
• Podpůrný stojan: A foldable stand for hands-free operation.
• LED svítilna: Integrated light for working in dimly lit areas.
• NCV (bezkontaktní svtage) Detector: For sensing AC electric fields without direct contact.
• Automatické vypnutí (APO): Šetří životnost baterie automatickým vypnutím po určité době nečinnosti.

This image highlights the multimeter's large 6000-count LCD display, capable of showing precise readings, essential for accurate measurements.

This image showcases the practical design elements of the multimeter, including a built-in torch for illuminating dark work areas, a sturdy support stand for hands-free use, and integrated test lead holders for convenient storage.

4. Nastavení

4.1 Instalace baterie

The Crenova 890Z Multimeter requires two 1.5V LR6 AA batteries (included). To install or replace batteries:

1. Ujistěte se, že je multimetr VYPNUTÝ.
2. Najděte přihrádku na baterie na zadní straně jednotky.
3. Odšroubujte kryt baterie a sejměte jej.
4. Vložte dvě baterie typu AA a dodržujte správnou polaritu (+/-) vyznačenou uvnitř přihrádky.
5. Nasaďte kryt baterie a zajistěte jej šroubem.

4.2 Připojení měřicích kabelů

Always connect the black test lead to the "COM" (common) input jack. Connect the red test lead to the appropriate input jack based on the measurement you intend to perform:

• Pro svtage (V), Resistance (Ω), Capacitance (F), Frequency (Hz), Diode, Continuity, and Temperature measurements, connect the red lead to the "VΩHz" jack.
• Pro miliampere (mA) nebo mikroampere (µA) current measurements, connect the red lead to the "mAµA" jack.
• Na 10 Ampere (10A) current measurements, connect the red lead to the "10A" jack.

5. Návod k obsluze

The Crenova 890Z Multimeter offers a variety of measurement functions. Select the desired function using the central rotary switch. The multimeter features auto-ranging, simplifying operation by automatically selecting the correct measurement range.

Ukázkové video produktu

5.1 svtagMěření (AC/DC)

K měření objtage:

1. Nastavte otočný přepínač do polohy „V~“ (AC Volumetage) nebo „V-“ (DC Voltage) pozice.
2. Connect the black test lead to the "COM" jack and the red test lead to the "VΩHz" jack.
3. Připojte měřicí sondy paralelně k obvodu nebo součástce, kterou chcete měřit.
4. Přečtěte si svtage hodnota na LCD.

Refer to Video 1 for demonstrations of AC Voltage Measurement (0:36) and DC Voltage Measurement (0:44).

5.2 Měření odporu

Pro měření odporu:

1. Set the rotary switch to the "Ω" (Resistance) position.
2. Connect the black test lead to the "COM" jack and the red test lead to the "VΩHz" jack.
3. Connect the test probes across the component to measure its resistance. Ensure the circuit is de-energized before measuring resistance.
4. Odečtěte hodnotu odporu na LCD displeji.

Refer to Video 1 for a demonstration of Resistance Measurement (0:16).

5.3 Měření kapacity

Chcete-li měřit kapacitu:

1. Set the rotary switch to the "Capacitance" (symbol: ∓) position.
2. Connect the black test lead to the "COM" jack and the red test lead to the "VΩHz" jack.
3. Connect the test probes across the capacitor. Ensure the capacitor is fully discharged before measurement.
4. Přečtěte si hodnotu kapacity na LCD.

Refer to Video 1 for a demonstration of Capacitance Measurement (0:27).

5.4 Test kontinuity

Chcete-li provést test kontinuity:

1. Set the rotary switch to the "Continuity" (symbol: )))) pozici.
2. Connect the black test lead to the "COM" jack and the red test lead to the "VΩHz" jack.
3. Dotkněte se měřicími sondami dvou bodů obvodu nebo součástky, kterou chcete testovat.
4. If there is continuity (low resistance), the multimeter will emit an audible beep. The display will show "OL" (Open Line) if there is no continuity.

Refer to Video 1 for a demonstration of Continuity Test (1:11).

5.5 Měření teploty

Pro měření teploty:

1. Set the rotary switch to the "°C/°F" (Temperature) position.
2. Connect the K-type thermocouple to the "VΩHz" and "COM" jacks, observing polarity.
3. Place the thermocouple probe at the location where you want to measure the temperature.
4. Read the temperature value on the LCD. You can switch between Celsius and Fahrenheit using the SELECT button.

This image illustrates the multimeter's ability to measure temperature using the included K-type thermocouple, along with a table detailing the measurement range, accuracy, and resolution in both Celsius and Fahrenheit.

Refer to Video 1 for a demonstration of Temperature Measurement (1:02).

5.6 Nekontaktní svtage (NCV) Detekce

Chcete-li použít funkci NCV:

1. Nastavte otočný přepínač do polohy „NCV“.
2. Move the top end of the multimeter close to the wire or outlet you suspect has AC voltage.
3. Pokud AC svtage is detected, the multimeter will emit an audible beep and the NCV indicator light will flash. The intensity of the beeping and flashing indicates the strength of the detected field.

This image demonstrates the multimeter's Non-Contact Voltage (NCV) detection feature, showing it sensing an AC electric field near a wall outlet, with an audible and visual alarm triggering upon detection.

Refer to Video 1 for a demonstration of NCV Detection (0:58).

5.7 Měření proudu (AC/DC)

Pro měření proudu:

1. Set the rotary switch to the "mAµA" or "10A" position for AC or DC current. Use the SELECT button to toggle between AC and DC.
2. Connect the black test lead to the "COM" jack. Connect the red test lead to the "mAµA" jack for small currents or the "10A" jack for larger currents.
3. Connect the multimeter in series with the circuit you wish to measure. Ensure the circuit is de-energized before breaking it to insert the multimeter.
4. Odečtěte aktuální hodnotu na LCD displeji.

5.8 Diode and Transistor (hFE) Test

To test diodes or transistors:

1. Set the rotary switch to the "Diode/hFE" position. Use the SELECT button to toggle between Diode and hFE modes.
2. For Diode Test: Connect the black test lead to "COM" and red to "VΩHz". Connect probes across the diode. A forward voltage drop will be displayed. "OL" indicates an open circuit.
3. For hFE Test: Insert the transistor leads into the appropriate E, B, C sockets on the multimeter. The hFE value will be displayed.

6. Údržba

6.1 Čištění

Otřete pouzdro reklamouamp hadříkem a jemným čisticím prostředkem. Nepoužívejte abrazivní prostředky ani rozpouštědla. Udržujte vstupní svorky bez nečistot a vlhkosti.

6.2 Výměna baterie a pojistky

When the low battery indicator appears on the display, replace the batteries as described in Section 4.1. If the fuses blow due to overload, they can be replaced by opening the battery cover. Ensure to use fuses with the correct ratings (600mA, 250V and 10A, 250V).

This image demonstrates the process of replacing a fuse in the multimeter, emphasizing the ease of access for maintenance.

6.3 Skladování

If the multimeter is not used for an extended period, remove the batteries to prevent leakage and damage. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.

7. Řešení problémů

If you encounter issues with your Crenova 890Z Multimeter, refer to the following common problems and solutions:

8. Specifikace

• Model: 890Z
• Zobrazit: LCD displej s 6000 číslicemi
• Hodnocení bezpečnosti: IEC61010-1 KAT III 600 V
• Zdroj napájení: 2 x 1.5V LR6 AA Batteries (included)
• Rozměry: 7.09 x 3.35 x 1.97 palce
• Hmotnost: 1.74 libry
• Vlastnosti: True RMS, Auto-Ranging, Auto Power Off, Data Hold, Backlight, LED Flashlight, NCV, Support Stand, Test Lead Holder.
• Funkce měření: AC/DC Voltage, AC/DC Current, Resistance, Frequency, Capacitance, Continuity, Diode, Transistor (hFE), Temperature.

9. Co je v krabici

The Crenova 890Z Digital Multimeter package includes:

• 1 x Crenova 890Z Multimeter
• 1 x termočlánek typu K
• 1 x Pair of Probe Test Leads
• 1 x pár testovacích kabelů s krokosvorkami
• 2 x 1.5V LR6 AA Batteries
• 1 x přepravní box
• 1 x Návod k použití

This image displays all the items included in the Crenova 890Z Multimeter package, providing a clear visual of the complete starter kit for users.

10. Záruka a podpora

The Crenova 890Z Digital Multimeter typically comes with a one-year warranty. For warranty claims, technical support, or any inquiries regarding the product, please contact Crenova customer service through the retailer where the product was purchased or visit the official Crenova webstránky pro kontaktní informace.

Uschovejte si prosím účtenku jako doklad o koupi pro účely záruky.