1. Introducció
This manual provides comprehensive instructions for the safe and effective use of the PCE Instruments PCE-170 A Light Meter. This device is designed for measuring illuminance (lux or foot-candles) in various environments, such as offices, factories, and outdoor settings. It features a wide measurement range, fast response time, and a compact design for ease of use.
Si us plau, llegiu aquest manual detingudament abans de fer servir el dispositiu i conserveu-lo per a futures consultes.
2. Informació de seguretat
Observe the following safety precautions to prevent injury and avoid damage to the device:
- No exposeu el dispositiu a temperatures extremes, humitat o llum solar directa.
- Eviteu vibracions o impactes forts.
- No intenteu obrir ni modificar el dispositiu. Envieu totes les tasques de manteniment a personal qualificat.
- Keep the light sensor clean and free from obstructions to ensure accurate readings.
- Traieu la bateria si no heu d'utilitzar el dispositiu durant un període prolongat per evitar fuites.
- Desfeu-vos de les piles i del dispositiu d'acord amb la normativa local.
3. Producte acabatview
The PCE-170 A Light Meter consists of a main unit with a display and control buttons, and an integrated light sensor.

Figura 1: Davant view of the PCE-170 A Light Meter, showing the display, control buttons, and light sensor at the top.
3.1 Components
- Sensor de llum: Located at the top of the device, protected by a white dome. This silicon photodiode measures incident light.
- Pantalla LCD: A 5-digit display showing measurement values, units (lux/fc), and function indicators (e.g., AUTO RANGE, HOLD, MIN, MAX).
- Botó d'engegada (encesa/apagada): Encén o apaga el dispositiu.
- Botó CAL: Used for zero adjustment.
- Botó HOLD: Congela la lectura actual a la pantalla.
- fc/lx Button: Toggles between foot-candle (fc) and lux (lx) measurement units.
- Botó RANGE: Manually selects measurement ranges or activates auto-ranging.
- Compartiment de la bateria: Located at the rear, houses the 9V battery.

Figura 2: Primer pla view of the LCD display, showing a reading of "534 lx" and "AUTO RANGE 4 000".

Figura 3: Detallada view of the light sensor at the top of the device, with its protective cap removed.
4. Configuració
4.1 Instal·lació de la bateria
- Localitzeu la tapa del compartiment de la bateria a la part posterior del dispositiu.
- Slide the cover open or unscrew it, depending on the model.
- Insert one 9V battery, observing the correct polarity (+/-).
- Col·loqueu la coberta del compartiment de la bateria amb seguretat.

Figura 4: The PCE-170 A Light Meter shown with its carrying case and the included 9V battery, ready for installation.
4.2 Engegada inicial
Premeu el botó Poder button to turn on the device. The display will illuminate and show a reading. If the battery symbol appears, replace the battery.
5. Instruccions de funcionament
5.1 Prendre una mesura
- Turn on the device using the Poder botó.
- Assegureu-vos que el sensor de llum estigui net i sense obstruccions.
- Position the light sensor at the location where illuminance is to be measured. Ensure the sensor is facing the light source directly for accurate readings.
- The current illuminance value will be displayed on the LCD.

Figura 5: A user measuring light levels in an office environment with the PCE-170 A Light Meter.
5.2 Changing Measurement Units (fc/lx)
Premeu el botó fc/lx button to toggle between foot-candles (fc) and lux (lx) units. The selected unit will be indicated on the display.
5.3 Funció HOLD
Premeu el botó MANTENIM per congelar la lectura actual a la pantalla. Premeu-lo de nou per alliberar la retenció i reprendre les mesures en directe.
5.4 Zero Adjustment (CAL)
Per fer un ajust zero:
- Place the light sensor in a completely dark environment (e.g., cover it with the protective cap or place it in a dark box).
- Premeu el botó CAL button. The display should show "0.00" or a value very close to zero.
- If the display does not show zero, repeat the process.
5.5 Selecció de rang
The device typically operates in auto-ranging mode. To manually select a range or cycle through available ranges, press the GAMMA button. The display will indicate the active range. Press and hold the GAMMA button to return to auto-ranging mode.
5.6 Min/Max Function (Power-Up Option)
The PCE-170 A supports Min/Max recording. To activate this feature, refer to the power-up options indicated on the device label (e.g., press and hold a specific button during power-on). This function records the minimum and maximum illuminance values detected during a measurement session.
6. Manteniment
6.1 Neteja
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents. Keep the light sensor clean and free of dust or smudges, as this can affect measurement accuracy.
6.2 Emmagatzematge
When not in use, store the PCE-170 A Light Meter in its carrying case in a cool, dry place, away from direct sunlight and extreme temperatures. Remove the battery if storing for extended periods.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El dispositiu no s’encén. | Bateria morta o instal·lada incorrectament. | Comproveu la polaritat de la pila o substituïu-la per una pila nova de 9 V. |
| La pantalla mostra "OL" (sobrecàrrega). | Light intensity exceeds the current measurement range. | Switch to a higher measurement range using the GAMMA button, or move to a less intensely lit area. |
| Lectures inexactes. | Dirty sensor, incorrect zero adjustment, or sensor not facing light source correctly. | Clean the sensor, perform zero adjustment in darkness, and ensure the sensor is properly oriented. |
| La pantalla està en blanc o parpelleja. | Bateria baixa. | Substituïu la bateria de 9V. |
8. Especificacions
| Paràmetre | Valor |
|---|---|
| Intervals de mesura | 0.00 ... 40,000 lux / 0.000 ... 4000 fc |
| Resolució | 0.01 lux / 0.001 fc |
| Precisió | ±3% of measurement value + 5 digits |
| Indicador de sobrecàrrega | "OL" |
| Taxa de mesura | Cada 2 segons |
| Temperatura de funcionament | 0 ... 40°C / 32 ... 104°F |
| Sensor de llum | Silicon photodiode, corrected cosine angle |
| Mostra | LCD de 5 dígits |
| Font d'alimentació | Bateria de 9V (inclosa) |
| Dimensions | 33 x 54 x 196 mm / 1.3 x 2.1 x 7.7 polzades |
| Pes | 180 g / <1 lb (approx. 9.17 ounces) |
8.1 Àmbit de lliurament
The standard delivery package includes:
- 1 x PCE-170 A Lux Meter
- 1 bateria de 9 V
- 1 x Maletí de transport
- 1 x Manual d'usuari (aquest document)
9. Garantia i Suport
PCE Instruments provides a warranty for this product against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official PCE Instruments website. For technical support, service, or calibration inquiries, please contact PCE Instruments customer service.
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