407026 - Luxmeter Extech - Free user manual and instructions

Product Type	Heavy Duty Light Meter (Luxmeter)
Brand	Extech
Model	407026
Category	Luxmeter
Display	3.5 digit (1999 count) LCD with contrast adjustment
Measurement Ranges (Lux)	0-1,999 / 1,800-19,990 / 18,000-50,000 (3 ranges)
Measurement Ranges (Foot-candles)	0-186.0 / 167-1,860 / 1,670-5,000 (3 ranges)
Accuracy	± (4% + 2 digits) full scale
Sampling Rate	0.4 seconds per reading approx.
Functions	Data Hold, Relative (%), MAX-MIN-AVG Recording, Light Source Selection (Tungsten/Daylight, Fluorescent, Sodium, Mercury), Zero Calibration, Auto Power Off, PC Interface
Sensor Type	Cosine and color corrected photo diode (CIE compliant)
Power Supply	9V battery (rear compartment)
Battery Life	Approximately 200 hours (5 mA DC consumption)
Auto Power Off	After 10 minutes of inactivity (defeatable in record mode)
PC Interface	RS-232 serial port for data streaming (optional USB cable #407001-USB and software required)
Dimensions (Meter)	180 x 72 x 32 mm (7.1 x 2.8 x 1.3 in)
Dimensions (Sensor)	85 x 55 x 17.5 mm (3.3 x 2.2 x 0.7 in)
Weight	320 g (0.71 lbs)
Operating Temperature	32 to 122°F (0 to 50°C)
Humidity	<80% RH
Warranty	Limited 3-year warranty
Cleaning	Damp cloth with mild detergent; no abrasives or solvents
Battery Replacement	When low battery indicator (LBT) appears; use 9V battery, observe polarity
Accessories	Optional PC interface cable (407001-USB) and software (downloadable from FLIR support)

Frequently Asked Questions - 407026 Extech

How do I zero calibrate the meter?

Place the supplied cover over the light sensor to block all light. Select the 2000 lux range using the RANGE switch, then press the ZERO button. Verify the display reads zero, then remove the cover.

How do I change measurement units between lux and foot-candles?

Press the LUX/FC button to toggle between lux (Lux) and foot-candles (Ft-cd). The current unit is shown on the display.

How do I use the relative (%) mode?

First measure a reference value. Press the % button to store it; the display shows 100%. Subsequent measurements will be displayed as a percentage of that reference. Press % again to exit.

How do I record and recall MAX, MIN, and AVG readings?

Press the RECORD button to start recording (REC icon appears). Press RECALL to cycle through the highest (MAX), lowest (MIN), and average (AVG) readings on the lower display. Press RECORD again to stop.

What should I do if the display shows dashes?

If the upper display shows dashes, the measurement exceeds the selected range; move the RANGE switch to a higher range. If the lower display shows dashes, the input is too low; select a lower range.

How do I connect the meter to a PC for data logging?

Use the optional 407001-USB cable to connect the meter's RS-232 port to a PC. Download and install the 407001-PRO software from FLIR support. Follow the software instructions for data streaming.

What type of battery does the meter use and how do I replace it?

The meter uses a standard 9V battery. When the low battery indicator (LBT) appears, remove the rubber holster, unscrew the rear compartment cover with a coin or screwdriver, replace the battery observing correct polarity, and secure the cover.

How do I clean the meter and sensor?

Use a damp cloth with mild detergent if needed. Do not use abrasives or solvents. Store the meter in a protective case and remove the battery for long-term storage.

How do I select the correct light source type?

Press the LIGHT SOURCE button repeatedly to cycle through the available types: Tungsten/Daylight (L), Fluorescent (F), Sodium (S), and Mercury (C). The corresponding icon appears on the lower display.

Does the meter have an auto power-off feature?

Yes, the meter automatically switches off after 10 minutes of inactivity. To disable this, press the RECORD button to enter recording mode before inactivity.

USER MANUAL 407026 Extech

Congratulations on your purchase of the Extech Heavy Duty Light Meter. This meter offers selectable lighting types, MAX-MIN-AVG recording, relative display mode, and PC interface. This professional meter, with proper care, will provide years of reliable service.

Description

Meter Description

1. Sensor connection
2. PC interface port
3. Display (LCD)
4. Control buttons and range switch
5. Sensor lens
6. Protective holster jacket
7. Display contrast adjustment

Notes: Battery compartment on back of meter. Protective sensor cover not pictured.

Display Description

1. Primary display for light measurement and relative (%) mode readings.2. Function indicators.3. Measurement units.4. Secondary display for MAX-MIN-AVG readings and lighting type icons. Also used to extend the primary display digits in the higher ranges (see Measurement Procedure section).

Button and Switch Descriptions

	Press to switch meter ON or OFF.
HOLD Press to freeze the displayed reading. Press again to exit.
LUX/FC	Press to change measurement units.
RECORD Press to access and exit the MAX-MIN-AVG mode.
RECALL Press to step through MAX-MIN-AVG readings in Record mod
LIGHT SOURCE	Press to step through the available lighting types.
ZERO With the sensor covered, press to zero the display.
%	Press to store reading. Subsequent measurements will be c played as a percentage of the stored reading. Press again
RANGE Slide the switch to the desired range.

Operation

Meter Power

1. Press the power button to switch the meter ON or OFF. If the display does not switch ON, replace the 9 V battery in the rea compartment.
2. The meter switches OFF after 10 minutes of inactivity. To defeat this feature, press the RECORD button to put the meter in the recording mode.

Zero Calibration

Perform a zero calibration before each use, to ensure the highest accuracy.

1. Place the supplied cover over the light sensor, effectively blocking all light to the sensor.
2. Select the 2000 lux range using the RANGE switch.
3. Press the ZERO button and verify that the meter reads zero.
4. Remove the sensor cover from the light sensor.

Measurement Units

Press the LUX/FC button to select the desired unit of measure. The display icon, Lux or Ft-cd, will reflect the current setting.

Selecting Light Source

Press the LIGHT SOURCE button to select the type of lighting to measured. The display icon, shown on the lower display digits, will indicate the selected lighting type (see icon list below).

L	Tungsten/Daylight
F Fluorescent
S Sodium
C	Mercury

Measurement Procedure

Hold the light sensor toward the light to be measured. The light must cover the entire surface of the sensor dome to obtain an accurate reading. Pinpoint lighting, such as from LED lamps, cannot be measured correctly with this meter.

The display will indicate the light intensity value in lux or foot-candles. Note that since the main display is limited to a reading of 1999, the right-most digit in the 20,000 lux and 5,000 foot-candle ranges appears on the lower display. In the 50,000 lux range, the last two digits appear on the lower display.

For example, for a reading of 19,990, the last digit (0) will appear the lower display, and for a reading of 48,900, the last two digits (00), will appear on the lower display.

Adjust the display contrast, if necessary, as changes in viewing angle can obscure the reading. The contrast adjustment is located on the right side of the meter.

Range Selection

For the best accuracy, first select the highest range using the RANGE switch, then switch to the lower ranges, as necessary, to locate the best range.

If the upper display area shows dashes, the measurement exceeds the maximum value for the selected range; select a higher range. the lower display area shows dashes, the input is too low; select lower range. See the diagram, below.

Simple rectangular outline with three horizontal dashed lines inside, no text or symbols present.

Simple rectangular outline with a horizontal dashed line inside, no text or symbols present.

Data Hold

Press the HOLD button to freeze the displayed reading. The DH icon will appear. Press HOLD again to return to normal operation; the DH icon will switch OFF.

Relative (%) Mode

In RELATIVE mode, a reference measurement is stored, and subsequent measurements are displayed as a percentage of the reference measurement.

Press the ‘%’ button to store the reference, 100% will be displayed. Light measurements will now be displayed as a percentage of the reference value.

For example, for a reference of 1000 lux, a 500 lux measurement will display as 50%, a 250 lux measurement will display as 25%, and a 2000 lux measurement will display as 200%.

Press the ‘%’ button again to return to normal operation.

Maximum (MAX), Minimum (MIN), Average (AVG) Recording

1. Press the RECORD button to start recording. The REC icon will switch ON.
2. Press the RECALL button to view the highest reading on the lower display digits (the upper display shows the actual reading) The MAX icon will appear.
3. Use the RECALL button to step to the MIN (lowest reading), the AVG (average reading), and then back to the MAX reading.
4. Press the RECORD button to return to normal operation. The REC icon will switch OFF.

PC Interface

To stream data from the meter to a PC, the optional 407001-USB cable is required. The 407001-PRO software is also required and can be downloaded from the link below. The software includes instructions for use.

www.flir.com/support-center/Instruments/extech-software-downloads/

Maintenance

Cleaning and Storage

To clean, wipe the meter and sensor with a damp cloth. A mild detergent may be used but do not use abrasives or solvents. Store the meter in a protective case or in the original packaging, and remove the battery and store separately.

Battery Replacement

When the low battery indicator appears (LBT), replace the battery as soon as possible.

1. Remove the meter's rubber protective holster.
2. Remove the rear compartment cover, using a coin or screw-driver, and remove the battery.
3. Replace the 9 V battery, observing correct polarity.
4. Ensure that the battery cover is secured before use.

Do not dispose of used batteries or rechargeable batteries in household waste.

Specifications

General Specifications

Display	3.5 digit (1999 count) LCD with contrast adjustment
Sample rate 0.4 seconds per reading (approx.)
Ranges 0 to 50,000 lux (3 ranges)0 to 5000 foot-candles (3 ranges)Relative mode: 0 to 1999%
Lighting types	Sodium, Daylight/Tungsten, Fluorescent, and Mercury
Sensor Cosine and color corrected photo diode (CIE compliant)
MAX-MIN-AVG Recording	Record and recall maximum, minimum, average readings
Zero adjustment Front	panel button
Auto Power OFF After	10 minutes of inactivity
PC interface RS-232 serial port for data streaming
Operating conditions 32 to 122°F (0 to 50°C); <80% RH
Power supply 9 V battery (rear compartment)
Power consumption 5	mA DC (200 hour battery life) approximately
Weight 0.71 lbs. (320 g)
Dimensions	Meter: 7.1 x 2.8 x 1.3 in. (180 x 72 x 32 mm)Sensor: 3.3 x 2.2 x 0.7 in. (85 x 55 x 17.5 mm)

Measurement Specifications

	Range Switch Display Range* Accuracy
Lux 2000 0 to 1	999		± (4% + 2 digits) full scale
	20,000 1800 to 19,990
	50,000 18,000 to 50,000
Foot-candles 200	0 to 186.0
	2000 167 to 1860
	5000 1670 to 5000
Relative mode 0	to 1999%

*Note that since the main display is limited to a reading of 1999, right-most digit in the 20,000 lux and 5,000 foot-candle ranges appears on the lower display. In the 50,000 lux range, the last two its appear on the lower display.

Appendix

Typical Light Levels

Foot-candle units are shown. For lux, multiply by 10.7639

Ft-cd range	Location Ft-cd range	Location
Factory Home
2-7 Emergency	stairs 10-15 Washing
7-15 Entrance	exits 15-20 Recreation
15-30 Packing	work 20-30 Living room
30-75 Production line	line 30-50		Grooming
75-150 Inspection	work 50-150	Reading
150-300	Assembly area 100-200		Sewing
Office		Restaurant
7-10 Emergency	stairs (indoor)	7-15	Stairways
10-20	Corridors	15-30 Entrance, Rest rooms
20-75 Reception	area 30-75	Kitchen, Dining
75-150	Clerical work	75-150	Show window
150-2000	Computer, typing
Store		Hospital
7-15	Shopping area	3-7	Emergency stairs
15-20	Corridor, stairway	7-10	Stairway
20-30 Reception	10-15	In-patient room
30-50 Product	displays 15-20	Waiting room
50-75 Elevator	20-75	Exam room
75-150	Show window, warehouse	75-150	Operating room
150-300	Storefront	500-1000	Eye inspection

Conversion Factors

Luminance (Visible Flux Density)	1 lm/m ^2 =	1 lux (lx)
		10-4lm/cm2
		10-4phot (ph)
		9.290 x 10lm/ft2
		9.290 x 10foot-candles
Luminance (Visible Flux Density per Solid Angle)	1 lm/m2/sr =	1 candela/m2
Luminous Intensity (Visible Flux per Solid Angle)	1 lm/sr =	1 candela
Luminous Flux (Visible Flux) 1 lumen (lm) =		1.464 x 10watts @ 555 nm

Customer Support

Local Telephone Support List https://support.flir.com/contact
Return Material Authorization (RMA)	https://customer.flir.com/Home
Customer Support https://support.flir.com/ContactService
Technical Support https://support.flir.com

FLIR Systems, Inc. offers calibration and repair services for the Ex-tech brand products we sell. We offer NIST traceable calibration fo most of our products.

Limited 3-Year Warranty

FLIR Systems, Inc. warrants this Extech brand instrument to be free of defects in parts and workmanship for three (3) years from date purchase. To view the full warranty, please visit the site below.

https://www.extech.com/support/warranties

Website

http://www.flir.com

Customer support

http://support.flir.com

Copyright

© 2024, FLIR Systems, Inc. All rights reserved worldwide.

Disclaimer

Specifications subject to change without further notice. Models and accessories subject to regional market considerations. License procedures may apply. Products described herein may be subject to US Export Regulations. Please refer to [e-mail] with any questions.

Publ. No.: NAS100239

Release: AA

Commit: 100719

Head: 100719

Language: en-US

Modified: 2024-11-25

Formatted: 2024-11-25