Extech UV505 UV-AB Light Meter User Manual
Introduction
Thank you for choosing the Extech UV505 UV-AB Light Meter. This device measures UV-AB light in the 290~390 nm wavelength range. The unit has been fully tested and calibrated and will provide reliable service for many years when used as directed. Visit our website (www.extech.com) for the latest version, manual translations, product updates, and customer support.
Detailed Description
Professional, high-quality UV meter for measuring ultraviolet radiation.
- Wavelength range: 290 nm - 390 nm
- Two measurement ranges for greater accuracy (0~3999 µW/cm² / 0~39.99 mW/cm²).
- Automatic power off after 15 minutes.
- Lightweight, ergonomic design.
General Safety
Read the entire user manual before using the device. Use the meter only as specified and do not attempt to repair it or open the meter housing. Do not allow children to use the meter or its protective case. Dispose of batteries and the meter responsibly and in accordance with all applicable regulations.
To avoid damage to this precision instrument, do not attempt measurements outside the ranges described in this user manual.
Do not use the meter in direct sunlight or in areas with excessive heat and/or humidity.
Do not immerse the meter in liquid.
UV Safety Information
Always exercise extreme caution when using the meter to test a UV light source. Depending on the exposure time, radiation intensity, wavelength, and individual sensitivity to UV light, exposure to UV radiation can be hazardous.
Overview of the Meter
The device features a light sensor (1), an LCD display (2), a backlight adjustment button (3), a zero button (4), a power on/off button (5), a unit selection button (6), and a data hold button (7). The battery compartment and stand are located on the back of the meter.
LCD Screen Descriptions
- Measured value
- Data Hold (freeze measured value)
- Zero mode
- Low battery symbol
- Unit of measure (µW/cm² or mW/cm²)
Button Descriptions
- [POWER]: Press to turn the meter on or off.
- [HOLD]: Press to freeze/unfreeze the displayed reading.
- [UNIT]: Press briefly to switch between µW/cm² and mW/cm².
- [BACKLIGHT]: Press briefly to turn on the backlight. The backlight turns off automatically after 10 seconds.
- [ZERO]: Press when the sensor cover is on to zero the display. The display shows ZERO while the meter is zeroing. Press again to exit zero mode. The ZERO indicator disappears.
Operation
Powering the Meter
Press the power button to turn the meter on or off. If the LCD does not turn on, check the batteries in the compartment on the back. The meter will automatically turn off after 15 minutes.
Zeroing the Sensor
With the sensor cover in place, press the [ZERO] button briefly to zero the display before taking measurements. The display shows ZERO while the meter is zeroing. Press the [ZERO] button again to exit zero mode. The ZERO indicator will disappear.
Taking a Measurement
Remove the sensor cover and point the light sensor at the UV light source. Read the measurement result on the device's screen.
Range and Unit Selection
Press the [UNIT] button briefly to switch between ranges (mW/cm² and µW/cm²); the selected range is displayed at the bottom of the screen.
Data Hold (Freezing the Measured Value)
Press the [HOLD] button briefly to freeze or unfreeze the displayed measured value.
Backlight
The LCD has a backlight to facilitate reading the display, especially in dimly lit areas. Press the [BACKLIGHT] button briefly to turn on the backlight. The backlight turns off automatically after 10 seconds.
General Measurement Notes
Keep the light sensor clean and free of scratches. Gently remove dust with a dry, lint-free cloth.
Do not allow reflections or shadows to fall on the sensor when taking a measurement.
For the most accurate readings, repeat the measurement multiple times to ensure the light source remains stable.
Maintenance and Care
Battery Replacement
- Turn off the meter.
- Press and slide the release button above the battery compartment (on the back of the meter) to open the battery cover.
- Replace both 1.5V AAA micro-batteries, observing correct polarity. Close the meter's battery compartment.
Battery Safety Information
Dispose of batteries environmentally responsibly. Never dispose of batteries in a fire, as they may explode or leak. If you plan not to use the device for more than 60 days, remove the batteries and store them separately from the device.
Never dispose of used batteries and accumulators in household waste. As a consumer, you are legally obligated to return old batteries to a collection point, a retail store that sells batteries, or wherever batteries are purchased.
Disposal
Do not dispose of the meter with household waste. At the end of its lifespan, take the device to a designated collection point for recycling electrical and electronic equipment.
Cleaning and Storage
Wipe the housing regularly with a damp cloth and mild detergent. Do not use aggressive cleaning agents or solvents. Use a dry, lint-free cloth to dust the sensor. Avoid materials that could scratch the sensor surface.
Technical Specifications
| Feature | Description |
|---|---|
| LCD | Backlit 3-3/4 digit LCD display (4000 counts) |
| Dimensions | 35 x 30 mm (1.4 x 1.2") |
| Sampling Rate | Approx. 2 times per second |
| Measurements | Ultraviolet light (UV-AB) |
| UV Sensor Spectrum | 290 - 390 nm |
| Peak Sensitivity Wavelength | 365 nm |
| Overload Indication | "OL" |
| Stand | On the back |
| Power Supply | 2 x 1.5V AAA micro-batteries |
| Battery Life | Approx. 50 hours |
| Auto Power Off | After 15 minutes of inactivity |
| Operating Temperature, Humidity | 5 ... 40 °C (41 ... 104 °F) / max. 80% rel. humidity |
| Operating Altitude | Max. 2000 meters (7000 feet) |
| Storage Temperature/Humidity | -10 ... 60 °C (14 ... 140 °F) / max. 70% rel. humidity |
| Dimensions/Weight | 133 x 48 x 23 mm (5.2 x 1.9 x 0.9"); 90 g (3.2 oz.) |
| Safety | Suitable for indoor use only. EMC (electromagnetic compatibility): EN61326 (1997), A1 (1998), A2 (2001); Pollution Degree 2. |
Electrical Specifications (23 ± 5 °C)
Ultraviolet (UV-AB)
| Unit | Measurement Range | Resolution | Accuracy |
|---|---|---|---|
| mW/cm² | 0 - 39.99 | 0.01 | ± 4% full scale |
| µW/cm² | 0 - 3999 | 1 | ± 4% full scale |
Customer Support
Customer Service: USA (877) 239-8324
International: +1 (603) 324-7800
Technical Support: Option 3
Repair/Returns: Option 4;
Technical Support Email: support@extech.com
Service Email: repair@extech.com
Copyright © 2017 FLIR Systems, Inc. All rights reserved, including the right of reproduction in whole or in part in any form.
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