HomeTest and MeasurementLight MetersExtech HD400: Heavy Duty Light Meter

Extech HD400 Heavy Duty Light Meter
Extech HD400 Heavy Duty Light Meter
Extech HD400 Heavy Duty Light Meter
Extech Instruments

Extech HD400: Heavy Duty Light Meter

$374.98

Extech HD400 Datalogging Model Available Automatically stores up to 16,000 readings or manually store/recall up to 99 readings.

Description

Description

Extech HD400 Heavy Duty Light Meter measures illuminance in Lux and Foot candles (Fc). The HD400 includes a PC interface and Windows™ compatible software for real-time monitoring and storage of light level data. The Extech HD400 utilizes precision silicon photo diode and spectral response filter. It also features a backlight for readings in low light levels.This meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

  • HD450 Datalogger model automatically stores up to 16,000 readings or manually store/recall up to 99 readings
  • Wide range to 40,000Fc or 400,000 Lux
  • Cosine and color corrected measurements
  • Utilizes precision silicon photo diode and spectral response filter
  • Peak mode (10mS) captures highest reading
  • Relative mode indicates change in light levels
  • Min/Max and Data Hold
  • Large backlit LCD display with 40-segment bar graph
  • Heavy Duty rugged double molded housing
  • Built-in USB port
  • Includes light sensor with 3ft (1m) cable and protective cover, Windows® compatible software with USB cable, hard carrying case, and 9V battery

Additional information

Weight 3 lbs
NIST Calibration

Accessories

Specification

<table width="100%" border="0">
<tbody>
<tr>
<td><strong>Units</strong></td>
<td><strong>Range</strong></td>
<td><strong>Resolution</strong></td>
<td><strong>Accuracy</strong></td>
</tr>
<tr>
<td rowspan="4"><strong>Lux</strong></td>
<td>400.0</td>
<td>0.1</td>
<td rowspan="2">± (5% rdg + 10 digits)</td>
</tr>
<tr>
<td>4000</td>
<td>1</td>
</tr>
<tr>
<td>40.00k</td>
<td>0.01k</td>
<td rowspan="2">± (10% rdg + 10 digits)</td>
</tr>
<tr>
<td>400.0k</td>
<td>0.1k</td>
</tr>
<tr>
<td rowspan="4"><strong>Foot Candles</strong></td>
<td>40.00</td>
<td>0.01</td>
<td rowspan="2">± (5% rdg + 10 digits)</td>
</tr>
<tr>
<td>400.0</td>
<td>0.1</td>
</tr>
<tr>
<td>4000</td>
<td>1</td>
<td rowspan="2">± (10% rdg + 10 digits)</td>
</tr>
<tr>
<td>40.00k</td>
<td>0.01k</td>
</tr>
<tr>
<td><strong>Notes:</strong></td>
<td colspan="4">1. Sensor Calibrated to standard incandescent lamp (color temperature: 2856K)<br />2. 1Fc = 10.76 Lux</td>
</tr>
</tbody>
</table>
<table width="100%" border="0">
<tbody>
<tr>
<td><strong>Display</strong></td>
<td>4000 count LCD display with 40 segment bargraph</td>
</tr>
<tr>
<td><strong>Ranging</strong></td>
<td>Four ranges, manual selection</td>
</tr>
<tr>
<td><strong>Over Range Indication</strong></td>
<td>LCD displays ‘OL’</td>
</tr>
<tr>
<td><strong>Spectral Response</strong></td>
<td>CIE photopic</td>
</tr>
<tr>
<td><strong>Spectral Accuracy</strong></td>
<td>Vλ function (f’1 ≤6%)</td>
</tr>
<tr>
<td><strong>Cosine Response</strong></td>
<td>f’2 ≤2%; Cosine corrected for angular incidence of light</td>
</tr>
<tr>
<td><strong>Measurement Repeatability</strong></td>
<td>±3%</td>
</tr>
<tr>
<td><strong>Display Rate</strong></td>
<td>Approximately 750 msec for digital and bargraph displays</td>
</tr>
<tr>
<td><strong>Photo Detector</strong></td>
<td>Silicon photo-diode with spectral response filter</td>
</tr>
<tr>
<td><strong>Peak Capture</strong></td>
<td>10μS minimum</td>
</tr>
<tr>
<td><strong>Operating Conditions</strong></td>
<td>Temperature: 32 to 104°F (0 to 40°C); Humidity: < 80%RH</td>
</tr>
<tr>
<td><strong>Storage Conditions</strong></td>
<td>Temperature: 14 to 140°F (-10 to 50°C); Humidity: < 80%RH</td>
</tr>
<tr>
<td><strong>Meter Dimensions</strong></td>
<td>6.7 x 3.1 x 1.6" (170 x 80 x 40mm)</td>
</tr>
<tr>
<td><strong>Detector Dimensions</strong></td>
<td>4.5 x 2.4 x 0.8” (115 x 60 x 20mm)</td>
</tr>
<tr>
<td><strong>Weight</strong></td>
<td>Approx. 13.7 oz. (390g) with battery</td>
</tr>
<tr>
<td><strong>Sensor lead Length</strong></td>
<td>3.2’ (1m)</td>
</tr>
<tr>
<td><strong>Low Battery Indication</strong></td>
<td>Battery symbol appears on the LCD</td>
</tr>
<tr>
<td><strong>Power Supply</strong></td>
<td>9V battery</td>
</tr>
</tbody>
</table>
Manufacturer Warranty

Mfr. Model #

Usually Ships

3 to 5 days
Standards

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SKU: MS-EXHD400 Category:
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