AMPROBE LM-100 Light Meters User Manual

: June 4, 2024
: AMPROBE

Table of Contents

Limited Warranty and Limitation of Liability
SYMBOLS
INTRODUCTION
OPERATION
SPECIFICATION
MAINTENANCE ANd REPAIR
Battery Replacement
Documents / Resources

LM-100 Light Meters
User Manual

Limited Warranty and Limitation of Liability

Limited Warranty and Limitation of Liability
Your Amprobe product will be free from defects in material and workmanship for 1 year from the date of purchase. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Amprobe’s behalf. To obtain service during the warranty period, return the product with proof of purchase to an authorized Amprobe Test Tools Service Center or to an Amprobe dealer or distributor. See Repair Section for details. THIS WARRANTY IS YOUR ONLY REMEDY. ALL OTHER WARRANTIES – WHETHER EXPRESS, IMPLIED, OR STATUTORY – INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, ARE HEREBY DISCLAIMED. MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM ANY CAUSE OR THEORY. Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages, this limitation of liability may not apply to you.

Repair
All test tools returned for warranty or non-warranty repair or for the calibration should be accompanied by the following: your name, company’s name, address, telephone number, and proof of purchase. Additionally, please include a brief description of the problem or the service requested and include the test leads with the meter. Non-warranty repair or replacement charges should be remitted in the form of a check, a money order, a credit card with an expiration date, or a purchase order made payable to Amprobe® Test Tools.

In – Warranty Repairs and Replacement – All Countries
Please read the warranty statement and check your battery before requesting repair. During the warranty period, any defective test tool can be returned to your Amprobe® Test Tools distributor for an exchange for the same or like the product. Please check the “Where to Buy” section on www.amprobe.com for a list of distributors near you. Additionally, in the United States and Canada In-Warranty repair and replacement units can also be sent to an Amprobe® Test Tools Service Center (see address below).

Non – Warranty Repairs and Replacement – US and Canada
Non-warranty repairs in the United States and Canada should be sent to an Amprobe® Test Tools Service Center. Call Amprobe® Test Tools or inquire at your point of purchase for current repair and replacement rates.

In the USA
Amprobe Test Tools
Everett, WA 98203
Tel: 877-Amprobe (267-7623)| In Canada
Amprobe Test Tools
Mississauga, on L4Z 1×9
Tel: 905-890-7600
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Non-Warranty Repairs and Replacement – Europe
European non-warranty units can be replaced by your Amprobe® Test Tools distributor for a nominal charge. please check the “where to Buy” section on www.amprobe.com for a list of distributors near you.
European Correspondence Address
Amprobe® Test Tools Europe in den engematten 14
79286 geothermal, Germany
Tel.: +49 (0) 7684 8009 – 0
(Correspondence only – no repair or replacement available from this address european customers please contact your distributor.)

AMPROBE LM 100 Light Meters

➊ Light sensor	➏ Manual range selection
➋ display(LCd)	➐ dATA hoLd button
➌ Lux / foot candles	➑ AUTo ranging
➍ MAx hoLd (LM-100) /Min and Max value (LM-120)	➒ Light sensor Zero

Adjustment
➎ power Button: on/off|

SYMBOLS

| Caution! Refer to the explanation in this Manual| | Complies with EU directives
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| Conforms to relevant Australian standards.| | do not dispose of this product as unsorted municipal waste.

Warning and Precautions

Do not operate the meter in explosive gas (material), combustible gas (material) steam or filled with dust.
The light sensor is calibrated to CIE standard incandescent lamp at 2856 K and may give different readings for spectrums from other lamp types.

UNPACKING AND INSPECTION
Your shipping carton should include:
1 LM-100 or LM-120 light meter
1 9-volt battery
1 Users Manual
if any of the items are damaged or missing, return the complete package to the place of purchase for an exchange.

INTRODUCTION

The LM-100 and LM-120 measure the visible light from fluorescent, metal halide, high-pressure sodium or incandescent sources.
One LUx (Lumen) is the illumination from a one-candela lamp perpendicular to a surface one meter squared at a distance of one meter. one foot-candle (FC) is the illumination from a one-candela lamp perpendicular to a surface one foot squared at a distance of one foot.

OPERATION

Press the button to turn the power on or off
Select illuminance scale and range for reading.
Remove the sensor cap and place the sensor perpendicular to the light.
When done testing, replace the sensor cover to protect the filter and sensor.

Lx/fc
illuminance scales. 1 foot-candle = 10.764 Lux and 1 lux = 0.09290 footcandles.

Data Hold
Freezes the reading present on the LCd at the moment the button is pressed.
Press hoLd again to disable data hold.

MAN Ranging (LM-100)
Press the MAnual ranging button for useable reading.

Auto/MAN Ranging (LM-120)
Press the AUTo or MAnual ranging button for useable reading. Auto-ranging is the default operator.

MAX (LM-100), MIN/MAX (LM-120)
This feature reads and updates the display to show the maximum or minimum value measured after you press the MAx Min button. pressing the MAx Min button for less than 1 second will put the meter into a mode of displaying the maximum, minimum, or actual readings. each time the MAx button is pressed, the meter will cycle from MAx→ Min → off. press the Max-Min button for more than 1 second to disable this feature.
Select the proper measurement range before enabling the Max-Min feature.

Auto-Power off (LM-120)
In order to save battery life, your light meter powers down automatically after approximately 6 minutes of inactivity. You can turn it back on by pressing the button. You can disable Auto power off by pressing and holding the held button while turning the meter on.

Zero (LM-120)
The light sensor will change the null point over time. To reset the null point, cover the sensor, and press the ZeRo button. The display will show “AdJ”. when the null reset is done, the display will read ‘00.0’.

SPECIFICATION

General

Sampling Rate:	2.5 times per second for digital display.
display:	3 ½ digit, 1999 count LCd
Sensor:	Silicon photodiode and filter.
environment:	indoor operation
Altitude:	Up to 2000m.

-EMC: en61326-1 This product complies with the requirements of the following European Community directives: 89/336/EEC (electromagnetic Compatibility) and 73/23/EEC (Low Voltage) as amended by 93/68/EEC (Ce Marking). however, electrical noise or intense electromagnetic fields in the vicinity of the equipment may disturb the measurement circuit. Measuring instruments will also respond to unwanted signals that may be present within the measurement circuit. Users should exercise care and take appropriate precautions to avoid misleading results when making measurements in the presence of electronic interference.

Illumination:

Measuring Range:| 200, 2000, 20000, 200000 Lux
20, 200, 2000, 20000-foot candles
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Accuracy:| ± 5 % (Calibrated to the standard incandescent lamp at 2856 K) operating error < 10%

MAINTENANCE ANd REPAIR

if there appears to be a malfunction during the operation of the meter, the following steps should be performed in order to isolate the cause of the problem.
Check the battery. Replace the battery immediately when the symbol

“ appears on the LCd.
procedure.

Review the operating instructions for possible mistakes in operating except for the replacement of the battery, repair of the meter should be performed only by a Factory Authorized Service Center or by other qualified instrument service personnel. The front panel and case can be cleaned with a mild solution of detergent and water. Apply sparingly with a soft cloth and allow to dry completely before using. do not use aromatic hydrocarbons or chlorinated solvents for cleaning.

Battery Replacement

Turn off the meter and slide out the battery cover. Replace the battery with a nedA type 1604 or equivalent 9V alkaline battery. Replace the cover.
Remove the battery when the LM-100 / LM-120 is not used for an extended period.

Battery Replacement

Visit www.Amprobe.com for