1. Pengenalan
The Testo 545 Digital Lux Meter is designed for precise and convenient determination of illuminance in various working environments. This instrument helps assess light conditions to promote productivity, well-being, and health, preventing issues such as concentration problems and headaches. Its app compatibility allows for easy setup, configuration, and data management, turning your smartphone into a second display for real-time monitoring and documentation.

Figure 1.1: Testo 545 Digital Lux Meter with its external sensor.
Ciri-ciri Utama:
- Precise Measurement: Accurate determination of illuminance for all common light sources according to the V-lambda curve.
- Operasi yang mudah: Automatic calculation and display of time and point averages, with audible alarm sounds for fast and reliable results.
- Kepelbagaian Aplikasi: Suitable for various environments, especially offices, to optimize light conditions for productivity and well-being.
- Keserasian LED: Compatible with most commercially available LEDs, excluding single-color blue LEDs.
- Kesambungan Apl: Seamless integration with a smartphone or tablet app for graph history display, data viewing, storage, and documentation, or as a second display.
2. Maklumat Keselamatan
Please read this manual carefully before operating the Testo 545 Digital Lux Meter. Adhere to all safety instructions to ensure safe operation and prevent damage to the device or injury to personnel.
Garis Panduan Keselamatan Am:
- Do not expose the device to extreme temperatures, direct sunlight, or excessive humidity.
- Elakkan hentaman atau getaran yang kuat.
- Do not open the device housing. Repairs should only be performed by authorized service personnel.
- Pastikan bateri dimasukkan dengan betul mengikut tanda kekutuban.
- Buang bateri dan peranti mengikut peraturan tempatan.
- Keep the sensor clean and free from dust or obstructions to ensure accurate measurements.
3. Kandungan Pakej
Sahkan bahawa semua item yang disenaraikan di bawah terdapat dalam pakej anda:
- Testo 545 Digital Lux Meter instrument
- Beg pengangkutan
- Calibration protocol (CoC)
- 3 x bateri AA
4. Persediaan
4.1 Pemasangan Bateri
The Testo 545 requires 3 AA batteries for operation. The battery compartment is located on the rear of the main unit.
- Cari penutup petak bateri di bahagian belakang peranti.
- Open the cover by sliding or unlatching it as indicated.
- Masukkan 3 bateri AA, pastikan kekutuban (+/-) yang betul seperti yang ditanda di dalam petak.
- Tutup penutup petak bateri dengan selamat.
4.2 Kuasa Awal Hidup
After installing the batteries, the device is ready for its first use.
- Press and hold the power button (usually marked with an ON/OFF symbol) until the display illuminates.
- The device will perform a brief self-test.
- Ensure the external sensor is securely connected to the main unit via its cable.

Rajah 4.1: Depan view of the Testo 545 main unit, showing the display and control buttons.
4.3 Sambungan Apl
The Testo 545 can connect to a smartphone or tablet via the Testo Smart App for enhanced functionality.
- Download the "Testo Smart App" from your device's app store (Google Play Store for Android, Apple App Store for iOS).
- Pastikan Bluetooth didayakan pada telefon pintar/tablet anda.
- Power on the Testo 545.
- Open the Testo Smart App and follow the on-screen instructions to search for and connect to your Testo 545 device.
- Setelah disambungkan, anda boleh view live readings, configure settings, and manage data directly from the app.

Figure 4.2: Using the Testo 545 in conjunction with the Testo Smart App on a smartphone.

Gambar 4.3: Cthample screenshot of the Testo Smart App interface showing measurement trends.
5. Arahan Operasi
5.1 Basic Illuminance Measurement
To take a basic illuminance reading:
- Power on the Testo 545.
- Position the external sensor at the point where you wish to measure illuminance. Ensure the sensor's light-sensitive surface is facing the light source and is not obstructed.
- Allow a few seconds for the reading to stabilize on the display.
- The current illuminance value will be shown in Lux (lx).

Figure 5.1: Measuring illuminance in an office setting with the Testo 545.
5.2 Fungsi Pengukuran Lanjutan
The Testo 545 offers advanced functions accessible via the device's buttons or the Testo Smart App.
- Time and Point Averages: The device automatically calculates and displays time and point averages. Refer to the on-screen menu or app interface for specific options to view these averages.
- Fungsi Tahan: Press the "HOLD" button (if available, or via app) to freeze the current reading on the display. Press again to release.
- Nilai Minimum/Maks: The device can track and display minimum and maximum measured values during a measurement session. Access this feature through the menu.
- Pengelogan Data: When connected to the Testo Smart App, you can log measurement data over time for analysis and reporting.

Figure 5.2: The Testo 545 being used for illuminance measurement on a workbench.
6. Penyelenggaraan
6.1 Membersihkan Peranti
To ensure optimal performance and longevity of your Testo 545:
- Wipe the device and sensor with a soft, damp kain. Jangan gunakan pembersih atau pelarut yang melelas.
- Ensure the sensor's light-sensitive surface is kept clean and free of dust, fingerprints, or smudges, as these can affect measurement accuracy.
- Do not immerse the device or sensor in water.
6.2 Penyimpanan
When not in use, store the Testo 545 in its transport bag in a cool, dry place, away from direct sunlight and extreme temperatures.
6.3 Penggantian Bateri
Gantikan bateri apabila penunjuk bateri rendah muncul pada paparan. Rujuk bahagian 4.1 untuk arahan pemasangan bateri.
7. Penyelesaian masalah
This section provides solutions to common issues you might encounter with your Testo 545.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Peranti tidak dihidupkan. | Bateri mati atau salah dimasukkan. | Periksa polariti bateri. Gantikan bateri jika perlu. |
| Bacaan yang tidak tepat. | Dirty sensor; sensor not positioned correctly; external interference. | Clean the sensor surface. Ensure sensor is facing the light source directly. Move away from strong electromagnetic fields. |
| Tidak dapat bersambung ke Aplikasi Pintar Testo. | Bluetooth off; app not updated; device out of range. | Ensure Bluetooth is enabled on both devices. Update the app. Bring devices closer together. Restart both devices. |
| Display shows "OVER" or "---". | Melebihi julat ukuran. | The illuminance is above the maximum measurable range (100,000 Lux). |
8. Spesifikasi
Detailed technical specifications for the Testo 545 Digital Lux Meter:
| Parameter | Nilai |
|---|---|
| Dimensi Produk | 10.9 x 7.5 x 3 inches (149 x 60 x 28 mm for main unit, 134 x 54 x 23 mm for probe) |
| Nombor Model Item | 0563 1545 |
| Bateri | 3 bateri AA (termasuk) |
| Light Measuring Range | 0 hingga 100,000 Lux |
| Ketepatan | Class C (F1 = 6% V(Lambda) adjustment, F2 = 5% cos-true evaluation, Total ≤ 15%, ±3% of mv ±1 Digit) |
| Resolusi | 0.1 Lux (<10000 Lux) / 1 Lux (≥ 10000 Lux) |
| Berat badan | 1.54 Paun (288 g) |
| Suhu Operasi | -4 to +122 °F (-20 to +50 °C) for instrument, -4 to +158 °F (-20 to +70 °C) for probe |
| Bahan Perumahan | ABS + PC / TPE |
| Panjang Kabel | 4.593 kaki (1.4 m) |
| Kelas Perlindungan | IP40 (instrument), IP20 (probe) |
| Hayat Bateri | 70 jam |
| Suhu Penyimpanan | -4 hingga +122 °F (-20 hingga +50 °C) |
9. Waranti dan Sokongan
9.1 Maklumat Waranti
Testo products are manufactured to the highest quality standards. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Testo webtapak. Simpan bukti pembelian anda untuk tuntutan waranti.
9.2 Sokongan Pelanggan
If you encounter any issues not covered in this manual or require technical assistance, please contact Testo customer support. Contact details can typically be found on the Testo official webtapak atau pada pembungkusan produk.
For further information and resources, visit the Kedai Testo di Amazon.





