Amprobe LM631A Bedienungsanleitung

User Manual

LM631A

Digital Light Meter

LM631A

Digital Light Meter

English

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 STAUTORY - 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.

Digital Light Meter

Contents

INSTRUCTIONS........................................................................................1

CERTIFICATIONS AND PRECAUTIONS ....................................................1

OPERATION.............................................................................................2

SPECIAL CONSIDERATIONS ....................................................................2

MAINTENANCE.......................................................................................3

REPAIR.....................................................................................................3

SPECIFICATIONS ......................................................................................6

ELECTRICAL.............................................................................................7

HOLD PEAK RANGE

> 2sec

HP MAX

X10 lux fc

lux

LM631

LIGHTMETER

Instructions

CERTIFICATIONS AND PRECAUTIONS

The LM631A instrument is EN61326-1 certiﬁed for EMC and EMI.

Do not use any damaged part.

Do not operate instrument in an explosive atmosphere. It is

recommended that you read the safety and operation instructions

before using the Light meter. The symbol on the instrument indicates

that the operator must refer to an explanation in this manual. It is

recommended that you read the safety and operation instructions

before using the light meter.

INTRODUCTION

This instrument is a portable easy use 3½ digit, compact sized digital

light meter designed for simple one hand operation with the reading in

lux or fc units. Its controls are:

1. Sensor Head.

2. RANGE button.

3. PEAK HOLD (50 mS pulse light) button and Back light switch.

4. DATA HOLD button.

5. Lux / fc / OFF selector

6. mV output jack.

7. LCD display.

Back Light: Press the ‘PEAK’ button for greater than 2 seconds to toggle

the backlights ON and OFF.

PEAK- HOLD button: Press the ‘PEAK’ button to toggle the PEAK

Hold function ON and OFF. In the PEAK-HOLD mode, the “

PM A X

“

annunciator is displayed and the last reading is held on the display. If

the new reading exceeds the previous reading and the new value is

displayed.

RANGE Button: Each time you press ‘RANGE’ button, the range

annunciators change

DATA-HOLD Button: Press ‘HOLD’ button to toggle the DATA-HOLD

mode On and Off. In the DATA-HOLD mode, the “

“ annunciator is

displayed and the last reading is held on the display.

Auxiliary output: The microphono jack (2.5 mm) connector output is

active as long as the light meter is turned on.

OPERATION

1. Set the function switch to the desired lux or fc units.

2. Remove the sensor head cover.

3. Hold the sensor head steady and make certain that the light source

completely ﬁlls the cosine correction dome.

4. Move away from the sensor head to avoid shadowing it.

The sensor head has a 1.5 meter cable to allow separation between the

observer and the measurement location.

5. Read the luminance value from the display. If magnitude of lux (or fc)

is not known, press RANGE button to the highest range and reduce until

a satisfactory reading is obtained.

6. Cover sensor head to extend sensor life.

SPECIAL CONSIDERATIONS

• Keep the plastic domed cosine corrector clean and free of scratches. It

may be cleaned with a soft cloth and isopropyl alcohol.

• When light is received from many directions simultaneously, take

special care to avoid reﬂections or shadowing the sensor with your

body.

• For best accuracy, repeat the measurement several times to ensure

that the light source has remained stable.

• Avoid exing the cable excessively at either end of the cable.

MAINTENANCE

In Case of Difﬁculties: In the case of improper operation of

the light meter, ﬁrst review the operating instructions for possible errors

in operation. Check the condition of the batteries. The battery “

+ -

”

symbol appears when the voltage falls below the level where accuracy is

guaranteed. Replace the batteries immediately.

Battery Replacement

To replace the batteries ( 4 – AAA) unscrew the battery hatch screw

and remove the old batteries. Install the new batteries observing the

diagram in the battery area.

Cleaning Procedure

Gently wipe dirt from the surface of the unit with a soft cloth moistened

with a small amount of water or neutral cleanser. Do not use benzene,

alcohol, acetone, ether, paint thinner, lacquer or ketone solvents on

the units, under any circumstances as these may cause deformation or

discoloration.

REPAIR

Read the warranty located at the front of this manual before requesting

warranty or non-warranty repairs. For warranty repairs, any lightmeter

claimed to be defective can be returned to any Amprobe Test Tools

authorized distributor or to a Amprobe Test Tools Service Center for an

over-the-counter exchange for the same or like product. Non-warranty

repairs should be sent to a Amprobe Test Tools Service Center. Please call

Amprobe Test Tools or enquire at your point of purchase for the nearest

location and current repair rates. All light meters returned for warranty

or non-warranty repair or for calibration should be accompanied by

the following information or items: company name, customer’s name,

address, telephone number, proof of purchase (warranty repairs), a

brief description of the problem or the service requested, and the

appropriate service charge (for non-warranty repairs). Service charges

should be remitted in the form of a check, a money order, credit card

with expiration date, or a purchase order made payable to Amprobe

Test Tools or to the speciﬁc service center. For minimum turn-around

time on out-of-warranty repairs please phone in advance for service

charge rates. The light meter should be shipped with transportation

charges prepaid to one of the following addresses or to a service center:

in U.S.A. in Canada

Amprobe Amprobe

1420 75th Street SW 400 Britannia Rd. E.Unit #1

Everett, WA 98203 Mississauga, ON L4Z 1X9

Tel: 1-877-596-2680 Tel: (905) 890-7600

Fax: 425-446-6390 Fax: (905) 890-6866

The instrument will be returned with the transportation charges paid by

Amprobe Test Tools.

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