PeakTech 5086 Digital LED Lux Meter User Manual

1. Introduction and Overview

The PeakTech 5086 is a precise 3 3/4 digit (max. 3999) LCD digital LED Lux Meter designed for measuring the light intensity of various light sources, including LED, fluorescent, and traditional incandescent lamps with different light colors. It measures in Lux (lx), Footcandle (FC), or Candela (cd).

Unlike simpler lux meters that are typically calibrated for incandescent bulbs at 2856 K and provide inaccurate results for different color temperatures, the PeakTech 5086 allows for the adjustment of various light source factors. This enables accurate measurements for neon lamps, incandescent lamps, red, blue, yellow LEDs, or daylight. The device features 10 freely adjustable correction factors for different light sources, 99 memory locations for measurement values, and useful measurement functions such as minimum, maximum, and average value tracking, as well as data hold. This makes it suitable for professional applications in occupational safety or lighting system evaluation.

Key Features:

• Measures light intensity in Lux (lx), Footcandle (FC), or Candela (cd).
• 10 freely adjustable light source factors for various lamp types.
• Suitable for colored light sources, LEDs, and other bulb types.
• Measurement refresh rate: approximately 2.5 times per second.
• External sensor with cosine angle correction.
• Data Hold, Minimum/Maximum/Average (AVG) measurement functions.
• Automatic range selection and zero adjustment.
• 99 memory locations for storing measurement values.

2. Safety Information

Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the device.

• Do not expose the device to extreme temperatures, humidity, or direct sunlight.
• Avoid strong vibrations or impacts.
• Do not attempt to open or modify the device. Refer all servicing to qualified personnel.
• Ensure batteries are inserted with correct polarity. Remove batteries if the device will not be used for an extended period.
• Keep the sensor clean and free from obstructions to ensure accurate readings.

3. Package Contents

Verify that all items listed below are present in your package:

• PeakTech 5086 Digital LED Lux Meter with external sensor
• Carrying bag
• Batteries (pre-installed or included separately)
• User Manual

4. Device Layout

The PeakTech 5086 consists of a main unit with an LCD display and control buttons, and an external light sensor connected via a coiled cable. The sensor is equipped with a protective cap.

Figure 4.1: PeakTech 5086 Digital LED Lux Meter showing the main display unit and the external light sensor with its protective cap removed.

Controls and Display:

• LCD Display: Shows measurement values, units (Lux, FC, Cd), battery status, and active functions (e.g., HOLD, MIN, MAX, AVG, Light Source factor).
• Power Button (⏻): Turns the device on or off.
• LX/FC/CD Button: Toggles between Lux, Footcandle, and Candela measurement units.
• MEM/READ Button: Accesses memory functions to store or recall readings.
• HOLD/L.S. Button: Activates Data Hold function or enters Light Source factor adjustment mode.
• ZERO Button: Performs zero adjustment for the sensor.
• Up (▲) / Down (▼) Buttons: Used for navigation and adjusting values in settings modes.

5. Setup

5.1 Battery Installation

The PeakTech 5086 typically comes with batteries pre-installed. If not, or if batteries need replacement:

1. Locate the battery compartment cover on the back of the main unit.
2. Open the cover by sliding or unscrewing it (refer to the diagram in the full manual if unsure).
3. Insert the required batteries (usually AAA or 9V, check the compartment for markings) ensuring correct polarity (+/-).
4. Close the battery compartment cover securely.

5.2 Connecting the Sensor

The external sensor is permanently attached via a coiled cable. Ensure the cable is not damaged or excessively stretched. The sensor head should be clean and the protective cap removed before taking measurements.

6. Operating Instructions

6.1 Powering On/Off

• Press the Power button (⏻) to turn the device on. The display will illuminate and show a reading.
• Press and hold the Power button (⏻) for a few seconds to turn the device off.

6.2 Unit Selection (Lux/FC/Cd)

• Press the LX/FC/CD button to cycle through the available measurement units: Lux (lx), Footcandle (FC), and Candela (cd). The selected unit will be displayed on the LCD.

6.3 Zero Adjustment

• Before taking measurements, especially in low light conditions, it is recommended to perform a zero adjustment.
• Place the protective cap over the sensor to block all light.
• Press the ZERO button. The display should show "0" or a very small value.
• Remove the protective cap before measuring.

6.4 Setting Light Source Factors (L.S.)

The PeakTech 5086 allows for compensation of different light sources. There are 10 adjustable factors (L.S. 0 to L.S. 9).

1. Press and hold the HOLD/L.S. button until "L.S." appears on the display, indicating you are in Light Source factor adjustment mode.
2. Use the Up (▲) and Down (▼) buttons to select one of the 10 factor memory locations (L.S. 0 to L.S. 9).
3. Press HOLD/L.S. again to enter the adjustment for the selected factor.
4. Use the Up (▲) and Down (▼) buttons to adjust the factor value. Consult the full manual or light source specifications for appropriate values.
5. Press HOLD/L.S. to confirm the setting and exit the adjustment mode.

6.5 Data Hold Function

• During a measurement, press the HOLD/L.S. button (short press) to freeze the current reading on the display. "HOLD" will appear.
• Press HOLD/L.S. again to release the hold and resume live measurements.

6.6 Minimum, Maximum, and Average (AVG) Measurement

This function allows you to track the lowest, highest, and average light intensity over a measurement period.

1. Press the MEM/READ button (short press) repeatedly to cycle through MIN, MAX, and AVG modes. The corresponding indicator will appear on the display.
2. In MIN mode, the display shows the lowest reading recorded since entering the mode.
3. In MAX mode, the display shows the highest reading recorded.
4. In AVG mode, the display shows the average reading.
5. To exit MIN/MAX/AVG mode, press the MEM/READ button until no indicator is shown, or turn the device off and on again.

6.7 Memory Functions (Store/Recall)

The device can store up to 99 measurement values.

Storing a Measurement:

1. With a live reading on the display, press and hold the MEM/READ button until "MEM" flashes and a memory location number appears.
2. Use the Up (▲) and Down (▼) buttons to select an empty memory location (or overwrite an existing one).
3. Press MEM/READ again to store the value. The display will briefly confirm storage.

Recalling Stored Measurements:

1. Press the MEM/READ button (short press) repeatedly until "READ" appears on the display.
2. Use the Up (▲) and Down (▼) buttons to scroll through the stored memory locations.
3. To exit recall mode, press MEM/READ until "READ" disappears, or turn the device off and on.

7. Maintenance

7.1 Cleaning

• Wipe the device and sensor with a soft, dry cloth.
• Do not use abrasive cleaners or solvents.
• Keep the sensor's light-receiving surface clean and free of dust or fingerprints for accurate readings.

7.2 Battery Replacement

When the low battery indicator appears on the display, replace the batteries as described in Section 5.1. Always use fresh batteries of the specified type.

7.3 Storage

• When not in use, store the device in its carrying bag with the sensor cap in place.
• Store in a cool, dry place, away from direct sunlight and extreme temperatures.
• Remove batteries if storing for an extended period to prevent leakage.

8. Troubleshooting

9. Specifications

10. Warranty and Support

PeakTech products are designed for reliability and performance. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official PeakTech website.

Information regarding spare parts availability and software updates is not explicitly provided in the product details. For technical support or service inquiries, please contact your local PeakTech distributor or customer service department.