Sper scientific 840011 Manuale utente

Pocket Laser

PowerMeter

840011

Instruction Manual

WARRANTY

Sper Scientic warrants this product against defects

in materials and workmanship for a period of ve

(5) years from the date of purchase, and agrees to

repair or replace any defective unit without charge.

If your model has since been discontinued, an

equivalent Sper Scientic product will be substituted

if available. This warranty does not cover probes,

batteries, battery leakage, or damage resulting

from accident, tampering, misuse, or abuse of the

product. Opening the meter to expose its electronics

will void the warranty.

To obtain warranty service, ship

the unit postage prepaid to:

SPER SCIENTIFIC LTD.

8281 E. Evans Rd., Suite 103

Scottsdale, AZ 85260

The defective unit must be accompanied by a

description of the problem and your return address.

INTRODUCTION

This tiny meter is less than ¾” thick,

weighing only 4 oz. (120 g) and is easily

carried in a shirt pocket.

The controls, display and sensor are all

neatly contained and protected within the

folding case with directions printed right

inside the cover.

This meter features a bar graph display,

auto power o󰀨, hold functions and indicates

low battery and over range.

SPECIFICATIONS CONSIDERATIONS

• Clean the sensor with a soft dry cloth.

• Turn the selector to OFF after use.

• To protect the sensor, store the unit with the cover closed.

• Do not expose the unit to excess direct sunlight, shock, vibration, humidity, or

extreme temperatures.

• Fluctuations in the reading may be due to shadows or changes in the line

voltage. Do not move the probe’s cord during measurement.

• Avoid Range Overload.

• Opening the case, except for replacing the batteries, will void the warranty

• Laser light can be harmful to the eyes and skin, avoid exposure to the beam and

do not look directly into the light source.

• Do not aim the light source at the eyes of other humans or animals.

• Do not aim the light source into a mirror or reective surface where the light

could be reected back into your eyes.

Insert the fresh batteries (match the

polarity) and replace the cover.

Remove the batteries when the

instrument will not be used for a

prolonged period.

Note...

This instrument uses 633 nm of a He-

Ne laser as the reference wavelength

To measure light wavelengths other

than 633 nm, convert the reading

using the sensitivity correction

coe󰀩cient obtained from the

photodiode’s spectral sensitivity

characteristics (typical values).

Min/Max (hold): Press the Case Lock

button to cycle through minimum hold (“DH”

and “MIN” is displayed), maximum hold

(“DH” and “MAX” is displayed), and normal

mode. Min/Max is cancelled when the range

is changed.

Automatic Shut O󰀨: The instrument has an

automatic shut o󰀨 function in order to prolong

battery life. After approximately 30 minutes

without activity, the meter will automatically

shut o󰀨. When this occurs, turn the range

selector to OFF for about 2 seconds before

selecting a measurement range.

Battery Replacement:

Replace the batteries

when “BT” appears in the

display. Remove the battery

compartment cover using

a screwdriver.

Measurement of weak laser power

(below 1 mW) tends to be a󰀨ected by

ambient light. In such cases, perform

the measurement in a darkened room.

The probe can be snapped

into a xed position during the

measurement, as shown.

After measuring the current

power, set the Power/Range

Selector to the optimum range.

Turn the selector to OFF when the

measurement is complete.

Store the probe so

the sensor faces up.

Take care not pinch

the probe’s wire in

the unit’s cover.

PANEL DESCRIPTION MEASUREMENT PROCEDURES

Open the cover by

pressing and holding

the Case Lock button.

Turn the selector to the

maximum (40 mW) measurement range.

If the measurement is over range, “4000”

displays and the “4” blinks.

Hold the probe’s sensor at a right angle

to the source to be measured. With

some lasers the power may vary due

to “return light” from the light sensor

surface. In such cases, change the

angle of the sensor so that the reect-

ed light does not return directly into the

laser light output.

Case

Lock

Button

Sensor Probe

Probe Storage

Protective

Cover

LCD

Power/Range

Selector

Example: When the measured laser light wavelength is

780 nm and the power meter reading is 2.44 mW:

Reading Correction coe󰀩cient wavelength converted

value 2.44 (mW) x 0.73 ═ 1.78 (mW)

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