1. Okwu mmalite
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.
Biko gụọ akwụkwọ ntuziaka a nke ọma tupu ị rụọ ọrụ ngwaọrụ ahụ ma debe ya maka ntụaka n'ọdịnihu.
2. Ozi nchekwa
Observe the following safety precautions to prevent injury and avoid damage to the device:
- Ewepụla ngwaọrụ ahụ na oke okpomọkụ, iru mmiri, ma ọ bụ ìhè anyanwụ kpọmkwem.
- Zere ịma jijiji ma ọ bụ mmetụta siri ike.
- Anwala imepe ma ọ bụ gbanwee ngwaọrụ ahụ. Nye ndị ọrụ ruru eru ọrụ niile.
- Keep the light sensor clean and free from obstructions to ensure accurate readings.
- Wepụ batrị ahụ ma ọ bụrụ na a gaghị eji ngwaọrụ ahụ ruo ogologo oge iji gbochie mmiri ịpụ apụ.
- Tụfuo batrị na ngwaọrụ ahụ dịka iwu obodo si dị.
3. Ngwaahịa gafereview
The PCE-170 A Light Meter consists of a main unit with a display and control buttons, and an integrated light sensor.

Foto 1: N'ihu view of the PCE-170 A Light Meter, showing the display, control buttons, and light sensor at the top.
3.1 Akụkụ
- Ihe mmetụta ọkụ: Located at the top of the device, protected by a white dome. This silicon photodiode measures incident light.
- Ngosipụta LCD: A 5-digit display showing measurement values, units (lux/fc), and function indicators (e.g., AUTO RANGE, HOLD, MIN, MAX).
- Bọtịnụ Ike (Gbanyụọ/Gbanyụọ): Gbanyụọ ma ọ bụ gbanyụọ ngwaọrụ.
- CAL Button: Used for zero adjustment.
- Bọtịnụ jide: Na-eme ka ọgụgụ dị ugbu a dị na ngosipụta ahụ gbụọ.
- fc/lx Button: Toggles between foot-candle (fc) and lux (lx) measurement units.
- Bọtịnụ RANGE: Manually selects measurement ranges or activates auto-ranging.
- Akụkụ batrị: Located at the rear, houses the 9V battery.

Foto 2: Agara nso view of the LCD display, showing a reading of "534 lx" and "AUTO RANGE 4 000".

Foto 3: Zuru ezu view of the light sensor at the top of the device, with its protective cap removed.
4. Nhazi
4.1 Ntinye batrị
- Chọta mkpuchi nke batrị n'azụ ngwaọrụ.
- Slide the cover open or unscrew it, depending on the model.
- Insert one 9V battery, observing the correct polarity (+/-).
- Dochie mkpuchi nke batrị batrị nke ọma.

Foto 4: The PCE-170 A Light Meter shown with its carrying case and the included 9V battery, ready for installation.
4.2 Agbanye ike mbụ
Pịa Ike button to turn on the device. The display will illuminate and show a reading. If the battery symbol appears, replace the battery.
5. Ntuziaka ọrụ
5.1 Inyocha ihe
- Turn on the device using the Ike bọtịnụ.
- Hụ na ihe mmetụta ọkụ ahụ dị ọcha ma ghara igbochi ya.
- 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.

Foto 5: A user measuring light levels in an office environment with the PCE-170 A Light Meter.
5.2 Changing Measurement Units (fc/lx)
Pịa fc/lx button to toggle between foot-candles (fc) and lux (lx) units. The selected unit will be indicated on the display.
5.3 Jide ọrụ
Pịa Jide button to freeze the current reading on the display. Press it again to release the hold and resume live measurements.
5.4 Zero Adjustment (CAL)
Iji mee mgbanwe efu:
- Place the light sensor in a completely dark environment (e.g., cover it with the protective cap or place it in a dark box).
- Pịa 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 Nhọrọ oke
The device typically operates in auto-ranging mode. To manually select a range or cycle through available ranges, press the RANGE button. The display will indicate the active range. Press and hold the RANGE 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. Nlekọta
6.1 Nhicha
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 Nchekwa
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. Nchọpụta nsogbu
| Nsogbu | Ihe nwere ike ime | Ngwọta |
|---|---|---|
| Ngwaọrụ anaghị agbanwu. | Batrị nwụrụ anwụ ma ọ bụ arụnyere na ezighi ezi. | Lelee polarity batrị ma ọ bụ dochie ya na batrị 9V ọhụrụ. |
| Ngosipụta na-egosi "OL" (Overload). | Light intensity exceeds the current measurement range. | Switch to a higher measurement range using the RANGE button, or move to a less intensely lit area. |
| Ọgụgụ na-ezighi ezi. | 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. |
| Ngosipụta bụ oghere ma ọ bụ na-egbuke egbuke. | Batrị dị ala. | Dochie batrị 9V. |
8. Nkọwapụta
| Oke | Uru |
|---|---|
| Ogo nha | 0.00 ... 40,000 lux / 0.000 ... 4000 fc |
| Mkpebi | 0.01 lux / 0.001 fc |
| Izi ezi | ±3% of measurement value + 5 digits |
| Ngosi oke ibu | "OL" |
| Ọnụego nha | Kwa sekọnd 2 ọ bụla |
| Okpomọkụ na-arụ ọrụ | 0 ... 40°C / 32 ... 104°F |
| Ihe mmetụta ọkụ | Silicon photodiode, corrected cosine angle |
| Ngosipụta | 5-nọmba LCD |
| Isi Iyi Ike | Batrị 9V (gụnyere) |
| Akụkụ | 33 x 54 x 196 mm / 1.3 x 2.1 x 7.7 inch |
| Ibu | 180 g / <1 lb (approx. 9.17 ounces) |
8.1 Oke nnyefe
The standard delivery package includes:
- 1 x PCE-170 A Lux Meter
- 1 x 9V batrị
- 1 x Akpa na-ebu
- 1 x Akwụkwọ ntuziaka onye ọrụ (akwụkwọ a)
9. Akwụkwọ ikike na nkwado
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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