Extech HD400 Light Meter User Manual

પરિચય

The Extech HD400 is a robust light meter designed for accurate measurement of light intensity across a wide range. It utilizes a precision silicon photo diode and a spectral response filter to ensure cosine and color corrected measurements. This manual provides essential information for the proper setup, operation, and maintenance of your HD400 Light Meter.

મુખ્ય લક્ષણો:

• Large backlit LCD display with 40-segment bar graph for clear readings.
• Wide measurement range up to 40,000 Fc (Foot-candles) or 400,000 Lux.
• Cosine and color corrected measurements for high accuracy.
• Precision silicon photo diode and spectral response filter for reliable data.
• Peak mode (10mS) to capture the highest reading.
• Relative mode to indicate changes in light levels.

સલામતી માહિતી

Please read and understand all safety instructions before operating the Extech HD400 Light Meter. Failure to follow these instructions may result in damage to the device or personal injury.

• Do not expose the device to extreme temperatures, humidity, or direct sunlight for prolonged periods.
• ઉપકરણને મજબૂત ઇલેક્ટ્રોમેગ્નેટિક ક્ષેત્રોથી દૂર રાખો.
• ઉપકરણ ખોલવાનો કે તેમાં ફેરફાર કરવાનો પ્રયાસ કરશો નહીં. બધી સર્વિસિંગ લાયક કર્મચારીઓને સોંપો.
• ખાતરી કરો કે બેટરીનો ડબ્બો ઓપરેશન દરમિયાન સુરક્ષિત રીતે બંધ છે.
• સ્થાનિક નિયમો અનુસાર બેટરીનો નિકાલ કરો.

પેકેજ સામગ્રી

ખાતરી કરો કે બધી વસ્તુઓ પેકેજમાં હાજર છે:

• Extech HD400 Light Meter
• Light sensor with 3ft (1m) cable and protective cover
• Windows compatible software with USB cable
• સખત વહન કેસ
• 9V બેટરી

Image: The Extech HD400 Light Meter shown with its light sensor, USB cable, software CD, and hard carrying case, illustrating the complete package contents.

સેટઅપ

1. બેટરી ઇન્સ્ટોલેશન

1. Locate the battery compartment on the back of the HD400 meter.
2. બેટરી કમ્પાર્ટમેન્ટ કવર ખોલો.
3. Insert the supplied 9V battery, observing the correct polarity (+/-).
4. બેટરી કમ્પાર્ટમેન્ટ કવર સુરક્ષિત રીતે બંધ કરો.

2. Connecting the Light Sensor

1. Connect the cable from the light sensor to the input jack located at the top of the HD400 meter.
2. Ensure the connection is firm.
3. Remove the protective cover from the light sensor before taking measurements.

Image: The Extech HD400 Light Meter with its light sensor connected via cable, ready for use. The main display shows a reading.

૩.૩. સોફ્ટવેર ઇન્સ્ટોલેશન (વૈકલ્પિક)

For data logging and analysis, install the Windows compatible software:

1. તમારા કમ્પ્યુટરની સીડી-રોમ ડ્રાઇવમાં સોફ્ટવેર સીડી દાખલ કરો.
2. ઇન્સ્ટોલેશન પૂર્ણ કરવા માટે ઑન-સ્ક્રીન સૂચનાઓને અનુસરો.
3. Connect the HD400 meter to your computer using the supplied USB cable.
4. Refer to the software's help documentation for detailed usage instructions.

ઓપરેટિંગ સૂચનાઓ

પાવરિંગ ચાલુ/બંધ

• દબાવો પાવર button to turn the meter on or off.
• The meter features an Auto Power Off (APO) function to conserve battery life.

માપન લેવું

1. Ensure the light sensor is positioned in the area where light intensity is to be measured. The sensor should be facing the light source.
2. The current light reading will be displayed on the large backlit LCD.

Image: A person holding the Extech HD400 Light Meter and its sensor to measure light levels in a stairwell, demonstrating typical usage.

કાર્ય બટનો

• UNITS: Press to toggle between Foot-candles (Fc) and Lux units.
• બદલો: Press to manually select the measurement range. The meter also has an auto-ranging feature.
• MAX/MIN: Press to display the maximum or minimum light reading recorded since the meter was powered on or the function was reset.
• પીક: Activates Peak mode, capturing the highest reading over a 10mS period. Useful for measuring short light flashes.
• REL (સંબંધિત): Activates Relative mode. This sets the current reading as a reference point (zero), and subsequent readings show the deviation from this reference.
• પકડી રાખો: Freezes the current reading on the display. Press again to release.
• બેકલાઇટ: Press the light bulb icon button to turn the display backlight on or off for improved visibility in low-light conditions.

જાળવણી

સફાઈ

• Wipe the meter and sensor with a dry, clean, soft cloth.
• ઘર્ષક ક્લીનર્સ અથવા સોલવન્ટનો ઉપયોગ કરશો નહીં.
• Keep the light sensor clean and free of dust or smudges to ensure accurate readings.

બેટરી રિપ્લેસમેન્ટ

When the battery indicator appears on the display, replace the 9V battery as described in the "Battery Installation" section under Setup.

સંગ્રહ

• If storing the meter for an extended period, remove the battery to prevent leakage.
• Store the meter in its hard carrying case in a cool, dry place, away from direct sunlight and extreme temperatures.

મુશ્કેલીનિવારણ

વિશિષ્ટતાઓ

વોરંટી અને આધાર

For warranty information and technical support, please refer to the documentation provided with your product or visit the official Extech webસાઇટ. વોરંટી દાવાઓ માટે ખરીદીના પુરાવા તરીકે તમારી ખરીદી રસીદ રાખો.

Extech is a brand of FLIR Systems, Inc.