1. Introducció
The PCE Instruments PCE-LT 15 is a versatile combination device functioning as both a digital multimeter (DMM) and a LAN cable tester. It is designed for accurate measurement of AC/DC voltage and resistance, as well as for performing continuity and diode tests. Additionally, it features a dedicated function for testing LAN cables and patch fields, providing pin-out indication for network cable integrity.
2. Informació de seguretat
Before operating the PCE-LT 15, please read and understand all safety instructions. Improper use can result in electric shock, injury, or damage to the device. Always adhere to local and national safety regulations.
- Seguretat elèctrica: This device is rated for CAT III 600V. Do not attempt to measure voltages exceeding this rating.
- Manipulació de la sonda: Always ensure test leads are in good condition, free from cracks or damage. Hold probes by the insulated parts.
- Circuit De-energization: Before performing resistance or continuity tests, ensure the circuit under test is de-energized.
- Seguretat de la bateria: Replace batteries when the low battery indicator appears. Do not mix old and new batteries or different battery types. Dispose of batteries according to local regulations.
- Condicions ambientals: Do not operate the device in wet conditions or in the presence of explosive gases or dust.
3. Producte acabatview
The PCE-LT 15 integrates a digital multimeter and a LAN cable tester into a compact, handheld unit. It features a clear digital display for multimeter functions and an LED bargraph for LAN testing.
Figure 1: The PCE-LT 15 device, showing its digital display, rotary function switch, control buttons, and connected test leads.
3.1. Components
- Unitat principal: Contains the digital multimeter, LAN cable tester controls, and display.
- Unitat remota: Used for LAN cable testing, connects to the far end of the cable.
- Cables de prova: Red and black leads for multimeter measurements.
- Pantalla digital: Shows measurement values for multimeter functions.
- LED Pin-Out Indicator: Displays the status of each wire in a LAN cable.
- Interruptor de funció rotatiu: Selects measurement modes (AC/DC Voltage, Resistance, Continuity, OFF).
- Botons de control: SEL (Select), RNG (Range), HOLD (Data Hold), ON/OFF (LAN Tester).
4. Configuració
4.1. Instal·lació de la bateria
The PCE-LT 15 requires two types of batteries:
- Multimeter Function: Requires 2 x 1.5V AAA batteries. Open the battery compartment on the main unit, insert batteries with correct polarity, and secure the cover.
- LAN Tester Function: Requires 1 x 9V 6F22 battery. Open the battery compartment on the main unit, insert the battery with correct polarity, and secure the cover.
Ensure batteries are correctly installed before use. Replace batteries when the low battery indicator appears on the display.
4.2. Connexió dels cables de prova
For multimeter functions, insert the red test lead into the 'VΩmA' input jack and the black test lead into the 'COM' (common) input jack. Ensure connections are secure.
5. Instruccions de funcionament
5.1. Encès / apagat
The multimeter function powers on when the rotary switch is moved from the 'OFF' position to any measurement function. To power off the multimeter, turn the rotary switch to 'OFF'. The LAN tester has a separate 'ON/OFF' button.
5.2. AC/DC Voltage Mesura
- Gireu l'interruptor rotatiu a la posició 'V~' (Volum ACtage) o 'V=' (Volum de CCtage) position. The device is auto-ranging.
- Connecteu els cables de prova en paral·lel al circuit o component on el voltage s'ha de mesurar.
- Llegeix el voltagEl valor es mostra a la pantalla LCD.
5.3. Mesura de Resistències
- Ensure the circuit or component is de-energized before measurement.
- Turn the rotary switch to the 'Ω' (Resistance) position.
- Connecteu els cables de prova al component que s'ha de mesurar.
- Read the resistance value displayed on the LCD.
5.4. Prova de continuïtat
- Assegureu-vos que el circuit o component estigui desenergitzat.
- Turn the rotary switch to the 'Ω' position, then press the 'SEL' button to cycle to the continuity mode (indicated by a buzzer icon).
- Connecteu els cables de prova a través del circuit o component.
- If the measured resistance is less than approximately 25Ω, the device will emit an audible alarm, indicating continuity.
5.5. Prova de díodes
- Ensure the diode is disconnected from any power source.
- Turn the rotary switch to the 'Ω' position, then press the 'SEL' button to cycle to the diode test mode (indicated by a diode symbol).
- Connect the red test lead to the anode and the black test lead to the cathode of the diode. A forward voltagEs mostrarà una gota.
- Reverse the test leads. An open circuit (OL) reading indicates a good diode.
5.6. LAN Cable Testing
- Connect one end of the LAN cable to the RJ45 port on the main unit.
- Connect the other end of the LAN cable to the RJ45 port on the remote unit.
- Press the 'ON/OFF' button for the LAN Cable Tester.
- Press the 'TEST' button to initiate the cable test.
- Observe the 'PIN-OUT INDICATOR' LEDs (1-8, GND) on the main unit. The LEDs will sequentially light up, indicating the continuity and correct wiring of each pin. Any missing or incorrectly lit LEDs indicate a fault (e.g., open, short, cross-over).
6. Manteniment
6.1. Neteja
Netegeu el dispositiu amb un drap sec i suau. No utilitzeu productes de neteja abrasius ni dissolvents. Assegureu-vos que no entri humitat al dispositiu.
6.2. Substitució de la bateria
Replace batteries promptly when the low battery indicator is displayed to ensure accurate measurements and prevent device malfunction. Refer to Section 4.1 for battery installation instructions.
6.3. Emmagatzematge
When not in use for extended periods, remove the batteries to prevent leakage. Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
7. Solució De Problemes
- Cap pantalla/dispositiu no s'encén: Check battery installation and ensure batteries have sufficient charge. Replace if necessary.
- Lectures incorrectes: Ensure test leads are properly connected and not damaged. Verify the correct measurement function is selected. Check battery level.
- 'OL' (Overload) Indicator: This indicates the measured value exceeds the selected range. For auto-ranging, it means the value is beyond the device's maximum capability for that function.
- LAN Test Failure: Check both ends of the LAN cable for proper connection to the main and remote units. Inspect the cable for physical damage. Ensure the LAN tester batteries are charged.
8. Especificacions
| Funció | Interval | Resolució | Precisió |
|---|---|---|---|
| DC Voltage | 400 mV | 0.1 mV | ± (0.5% of v/m + 3 Dgt) |
| 4 V | 1 mV | ||
| 40 V | 10 mV | ||
| 400 V | 100 mV | ||
| 1000 V | 1 V | ||
| Vol. ACtage | 400 mV | 0.1 mV | ± (1% from + 5 Dgt) |
| 4 V | 1 mV | ||
| 40 V | 10 mV | ||
| 400 V | 100 mV | ||
| 750 V | 1 V | ||
| Resistència | 400 Ω | 0.1 Ω | ± (1.2% from + 3 Dgt) |
| 4 kΩ | 1 Ω | ||
| 40 kΩ | 10 Ω | ||
| 400 kΩ | 100 Ω | ||
| 4 MΩ | 1 kΩ | ||
| 40 MΩ | 10 kΩ | ± (2% from + 4 Dgt) | |
| Prova de continuïtat | Alarm when measured value < 25 Ω | ||
| Mostra | LC display for multimeter functions, LED bargraph for LAN testers | ||
| Font d'alimentació | LAN tester: 1 x 9V 6F22 battery; Multimeter: 2 x 1.5V AAA battery | ||
| Dimensions (Handset) | 165 x 82 x 42 mm / 6.5 x 3.2 x 1.7 polzades | ||
| Dimensions (Remote Unit) | 75 x 30 x 25 mm / 3 x 1.2 x 1 polzades | ||
| Weight (Handset) | 240 g / <1 lb | ||
| Weight (Remote Unit) | 30 g / <1 lb | ||
| Electrical Security | CAT III 600V | ||
9. Garantia i Suport
For warranty information, technical support, or service inquiries, please contact your authorized PCE Instruments dealer or the manufacturer directly. Retain your purchase receipt as proof of purchase for warranty claims.
