1. Uvod
The Lutron YK-37UVSD is a professional-grade light meter designed for accurate measurement of both UVA and UVC light. This device features a microprocessor circuit for high reliability and durability, making it suitable for various applications including monitoring blue light radiation hazards, UV sterilization, graphic arts, photochemical matching, UV EPROM erasure, photoresist exposure, and curing of inks, adhesives, and coatings. It includes an SD card real-time data logger and supports Type K temperature measurements.
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your YK-37UVSD light meter.
2. Sigurnosne informacije
- Prije upotrebe uređaja pažljivo pročitajte sva uputstva.
- Ne izlažite uređaj ekstremnim temperaturama, vlazi ili direktnoj sunčevoj svjetlosti duži vremenski period.
- Izbjegavajte ispuštanje uređaja ili izlaganje jakim udarcima.
- Do not attempt to open or modify the device; this will void the warranty.
- Provjerite da li su baterije umetnute s ispravnim polaritetom. Izvadite baterije ako uređaj nećete koristiti duži period.
- Keep the probes clean and free from dust or debris to ensure accurate readings.
3. Proizvod je gotovview
3.1 Glavna jedinica
The main unit features an LCD display, control buttons for power, function, data hold, recording, zero adjustment, and data logging. It also includes slots for the SD card and probe connections.

Slika 1: Front view of the Lutron YK-37UVSD main unit, showing the LCD display and control buttons.
3.2 UVA and UVC Probes
The meter comes with two specialized probes: one for UVA measurement and another for UVC measurement. Both probes feature a cosine correction filter for accurate light detection.

Slika 2: Separate UVA and UVC probes. The UVA probe has a cylindrical body, while the UVC probe has a flat, circular sensor head.
4. Podešavanje
4.1 Instalacija baterije
- Locate the battery compartment cover on the back of the main unit.
- Otvorite poklopac.
- Insert six (6) 1.5V AA (UM-3) batteries, ensuring correct polarity as indicated inside the compartment.
- Vratite poklopac odeljka za baterije.
4.2 Povezivanje sonde
- Identify the desired probe (UVA or UVC) for your measurement.
- Connect the probe's cable connector to the corresponding input jack on the top or side of the main unit. Ensure a secure connection.
4.3 Umetanje SD kartice
- Locate the SD card slot on the side of the main unit.
- Insert a formatted SD card (up to 16 GB) into the slot until it clicks into place.
- Da biste uklonili, lagano gurnite karticu prema unutra dok ne iskoči.
5. Uputstvo za upotrebu
5.1 Uključivanje/isključivanje
Pritisnite POWER/ESC button to turn the meter on. Press and hold the POWER/ESC dugme nekoliko sekundi da biste ga isključili.
5.2 Measurement Mode Selection
After powering on, the meter will display the current measurement mode. To switch between UVA and UVC modes, press the dedicated UVA/UVC button (if available) or cycle through modes using the FUNC/HOLD/NEXT button as per the on-screen prompts.
5.3 Odabir raspona
The YK-37UVSD offers two measurement ranges: 2 mW/cm² and 20 mW/cm². The meter typically auto-ranges, but you may be able to manually select a range using the SET button or a combination of buttons as described in the on-screen menu.
5.4 Funkcija zadržavanja podataka
Pritisnite HOLD dugme (često u kombinaciji sa FUNC/NEXT) to freeze the current reading on the display. Press it again to release the hold function.
5.5 Podešavanje nule
For accurate measurements, especially in low light conditions, a zero adjustment may be necessary. With the probe covered or in a dark environment, press the NULA button to calibrate the meter to zero.
5.6 Data Logging (SD Card)
To initiate real-time data logging to the SD card:
- Provjerite je li SD kartica umetnuta.
- Pritisnite LOGGER button. The display will indicate that logging has started.
- To stop logging, press the LOGGER ponovo dugme.
- Data is saved in a format compatible with spreadsheet software for easy analysis.
5.7 Type K Temperature Measurement
The YK-37UVSD also supports Type K thermocouple temperature measurements. Connect a Type K thermocouple probe (sold separately) to the designated input. Use the FUNC/NEXT button to switch to temperature measurement mode.
6. Održavanje
6.1 Čišćenje
Wipe the device and probes with a soft, dry cloth. For stubborn dirt, a slightly damp Može se koristiti krpa s blagim deterdžentom, pazeći da tekućina ne uđe u uređaj. Ne koristite abrazivna sredstva za čišćenje ili rastvarače.
6.2 Zamjena baterije
When the low battery indicator appears on the display, replace all six AA batteries promptly to ensure continued accurate operation. Refer to section 4.1 for battery installation instructions.
6.3 Skladištenje
Store the meter and probes in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for an extended period, remove the batteries to prevent leakage.
7. Otkrivanje problema
- Nema ekrana / Uređaj se ne uključuje: Check battery installation and ensure batteries are fresh. If using an AC adapter, verify the connection and power source.
- Netačna očitavanja: Ensure probes are clean and properly connected. Perform a zero adjustment. Verify that the correct measurement mode (UVA/UVC) is selected.
- Greška SD kartice: Ensure the SD card is properly inserted and formatted. Try a different SD card if the issue persists.
- Data Logging Not Working: Check if the SD card has sufficient free space. Ensure the logging function is activated correctly.
Ako problemi i dalje postoje nakon isprobavanja ovih rješenja, obratite se korisničkoj podršci.
8. Specifikacije
The following table outlines the key specifications of the Lutron YK-37UVSD UVA and UVC Light Meter:

Slika 3: Detailed specification sheet for the Lutron YK-37UVSD, providing comprehensive technical data.
| Feature | Specifikacija |
|---|---|
| Model | YK-37UVSD |
| Measurement Ranges | UVA: 2 mW/cm², 20 mW/cm² UVC: 2 mW/cm², 20 mW/cm² |
| Tip senzora | UVA probe, UVC probe with cosine correction filter |
| Display | LCD |
| Data Logger | SD Card (1 GB to 16 GB), Real-time data logging |
| Merenje temperature | Type K Thermocouple (optional probe) |
| Napajanje | 6 x 1.5V AA (UM-3) batteries or DC 9V adapter |
| Radna vlažnost | Manje od 85% RH |
| Dimenzije (glavna jedinica) | Približno 203 x 76 x 38 mm (8 x 3 x 1.5 inča) |
| Težina (glavna jedinica) | Pribl. 300 g (0.66 lbs) |
| Zemlja porijekla | Tajvan |
| Težina artikla | 426 g |
| Dimenzije proizvoda | 30.48 x 15.24 x 10.16 cm |
9. Garancija i podrška
9.1 Informacije o garanciji
This product is manufactured by Lutron. For specific warranty terms and conditions, please refer to the warranty card included with your product or contact the manufacturer directly. Warranty coverage typically includes defects in materials and workmanship under normal use.
9.2 Korisnička podrška
For technical assistance, troubleshooting not covered in this manual, or service inquiries, please contact the seller or the authorized Lutron service center in your region. Please have your model number (YK-37UVSD) and purchase information ready when contacting support.