1. Úvod
This manual provides detailed instructions for the safe and effective use of the Graigar TENMARS TM-204 Digital Lux Meter. The TM-204 is a compact, high-precision instrument designed for measuring light intensity in Lux or Footcandles. It features a large LCD display, data hold, zero adjustment, and a spectral response close to CIE luminous spectral efficiency.
Klíčové vlastnosti:
- Measures light intensity in Lux or Footcandles.
- Wide measuring range: 20, 200, 2000, 20000, 200000 Lux / 20, 200, 2000, 20000 Footcandles.
- Funkce uchování dat.
- Zero adjustment capability.
- Indikace slabé baterie.
- Overload indication ('OL').
Dodávané příslušenství:
- TENMARS TM-204 Digital Lux Meter
- Uživatelská příručka (tento dokument)
- Přepravní pouzdro

Obrázek 1: Přední strana view of the TENMARS TM-204 Digital Lux Meter.
2. Bezpečnostní informace
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the meter.
- Nepoužívejte měřič, pokud se jeví poškozený.
- Avoid exposing the meter to extreme temperatures, humidity, or direct sunlight for prolonged periods.
- Keep the sensor clean and free from obstructions to ensure accurate readings.
- Pokud se glukometr delší dobu nepoužívá, vyjměte baterie, abyste zabránili jejich vytečení.
- Zlikvidujte baterie v souladu s místními předpisy.
3. Konec produktuview
The TENMARS TM-204 consists of a main unit with an LCD display and control buttons, and an integrated light sensor. The sensor is protected by a removable cap.
3.1 Komponenty
- Světelný senzor: Silicon photodiode and filter for light detection.
- Krytka senzoru: Protects the light sensor when not in use.
- LCD displej: Shows measurement readings, units (Lux/Fc), range, and indicators.
- Tlačítko napájení (ⓘ): Turns the meter ON/OFF.
- M-H Button: Activates Maximum/Minimum Hold function.
- D-H Button: Activates Data Hold function.
- Lx/Fc Button: Toggles between Lux and Footcandle units.
- Tlačítko R: Resets the meter or clears certain functions.
- Zero Adjustment Screw: Used for calibrating the zero point.
- Přihrádka na baterie: Obsahuje 9V baterii.

Obrázek 2: Úhlové view of the meter with the sensor cap removed, showing the light sensor.
4. Nastavení
4.1 Instalace baterie
The TM-204 requires one 9V battery (NEDA 1604, IEC 6F22, or JIS 006P). Batteries are not included with the product.
- Najděte kryt přihrádky na baterie na zadní straně měřiče.
- Posuňte kryt dolů a otevřete přihrádku.
- Connect a 9V battery to the battery connector, observing correct polarity.
- Place the battery into the compartment and slide the cover back into place until it clicks securely.

Obrázek 3: Zadní view showing the open battery compartment.
4.2 Nastavení nuly
Before taking measurements, it is recommended to perform a zero adjustment to ensure accuracy.
- Ensure the sensor cap is securely placed over the light sensor.
- Turn on the meter by pressing the Power button (ⓘ).
- If the display does not show '000.0', locate the '0 ADJ' screw on the side of the meter.
- Using a small screwdriver, carefully turn the '0 ADJ' screw until the display reads '000.0'.

Obrázek 4: Strana view indicating the Zero Adjustment screw.
5. Návod k obsluze
5.1 Zapnutí/vypnutí
Press the green Power button (ⓘ) to turn the meter on. Press and hold the Power button for approximately 2 seconds to turn the meter off.
5.2 Provádění měření
- Remove the sensor cap from the light sensor.
- Point the light sensor towards the light source or area where you wish to measure illumination.
- The current light intensity will be displayed on the LCD. The meter automatically selects the appropriate range.
5.3 Unit Selection (Lux/Fc)
Stiskněte tlačítko Lx/Fc button to toggle between Lux and Footcandle measurement units. The selected unit will be indicated on the display.
5.4 Data Hold (D-H)
Stiskněte tlačítko DH button to freeze the current reading on the display. Press DH again to release the hold and resume live measurements.
5.5 Maximum/Minimum Hold (M-H)
Stiskněte tlačítko MH button to activate the Maximum/Minimum Hold function. The display will show 'MAX' or 'MIN' along with the highest or lowest reading recorded since the function was activated. Press MH repeatedly to cycle through MAX, MIN, and normal measurement modes. To exit, press and hold the MH tlačítko.
5.6 Reset Function (R)
The R button can be used to reset certain functions or clear stored data, depending on the current mode of operation. Refer to specific function sections for its use.
5.7 Overload Indication
If the measured light intensity exceeds the meter's maximum range, the LCD will display 'OL' in the left-most position, indicating an overload condition.
5.8 Indikace slabé baterie
Když je baterie objtage is low, a battery icon will appear on the LCD. Replace the 9V battery as soon as possible to ensure accurate readings.
6. Údržba
6.1 Čištění
Otřete c měřičeasing 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 Péče o senzor
Always keep the sensor cap on when the meter is not in use to protect the photodiode and filter from dust and damage.
6.3 Výměna baterie
Replace the 9V battery when the low battery indicator appears on the display. Follow the instructions in Section 4.1 for battery installation.
6.4 Skladování
Store the 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. Řešení problémů
| Problém | Možná příčina | Řešení |
|---|---|---|
| Měřič se nezapne. | Vybitá nebo nesprávně nainstalovaná baterie. | Zkontrolujte polaritu baterie nebo ji vyměňte za novou 9V baterii. |
| Display shows 'OL'. | Light intensity exceeds the measurement range. | Move to an area with lower light intensity or ensure the correct range is selected (if manual ranging is available, though this model is auto-ranging). |
| Nepřesné údaje. | Dirty sensor, incorrect zero adjustment, or low battery. | Clean the sensor, perform zero adjustment (Section 4.2), or replace the battery. |
| Display shows '000.0' in light. | Sensor cap is on, or zero adjustment is incorrect. | Remove sensor cap. If still '000.0', re-perform zero adjustment with cap on. |
8. Specifikace
| Parametr | Specifikace |
|---|---|
| Zobrazit | 2000 count, large LCD display |
| Senzor | Silikonová fotodioda a filtr |
| Rozsah měření | 20, 200, 2000, 20000, 200000 luxů 20, 200, 2000, 20000 nožních svíček |
| Přesnost | ±3% (kalibrováno na standardní žárovku lamp 2856KK) ±8 % (jiné zdroje viditelného světla) |
| Angle Deviation from Cosine Characteristics | 10°: ±0.5 % 30°: ±2 % 50°: ±3 % 60°: ±6 % 80°: ±25 % |
| Sampsazba ling | 2.5krát za sekundu pro digitální zobrazení |
| Indikace přetížení | LCD shows 'OL' |
| Indikace slabé baterie | Battery icon on LCD |
| Zdroj napájení | 9V battery (NEDA 1604, IEC 6F22, or JIS 006P) |
| Dimensions (Meter) | 130 x 55 x 38 mm (5.12 x 2.17 x 1.5 palce) |
| Rozměry (senzor) | 80 x 55 x 25 mm |
| Hmotnost | Přibližně 250 gramů (0.55 liber) |
| Materiál | Plast |
9. Záruka a podpora
This product is manufactured by Graigar. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.