Hanna Instruments HI 97500 Manuel utilisateur

Instruction Manual

HI 97500

Portable Lux Meter

www.hannainst.com

WARRANTY

All Hanna Instruments meters are warranted for two years against

defects in workmanship and materials when used for their intended

purpose and maintained according to instructions. Sensors and probes

are warranted for a period of six months. This warranty is limited to

repair or replacement free of charge.

Damages due to accident, misuse, tampering or lack of prescribed

maintenance are not covered.

If service is required, contact the dealer from whom you purchased the

instrument. If under warranty, report the model number, date of purchase,

serial number and the nature of the failure. If the repair is not covered by

the warranty, you will be notified of the charges incurred. If the instrument

is to be returned to Hanna Instruments, first obtain a Returned Goods

Authorization Number from the Customer Service department and then

send it with shipment costs prepaid. When shipping any instrument, make

sure it is properly packaged for complete protection.

All rights are reserved. Reproduction in whole or in part is prohibited

without the written consent of the copyright owner.

Dear Customer,

Thank you for choosing a Hanna product.

This manual will provide you with the necessary information

for the correct operation of the meter. Please read it carefully

before using the meter.

If you need additional technical information, do not hesitate

to e-mail us at [email protected].

This instrument is in compliance with directives.

Remove the instrument from the packing material and

examine it carefully to make sure that no damage has

occurred during shipment. If there is any damage, notify

your Dealer.

Each meter is supplied complete with:

• 1 x 9V alkaline battery

• instruction manual.

Note: Conserve all packing material until the instrument

has been observed to function correctly. Any defective

item must be returned in its original packing.

PRELIMINARY EXAMINATION

GENERAL DESCRIPTION

HI 97500 is a portable lux meter designed for simplicity of

use in taking rapid light measurements.

The instrument is provided with a light sensor connected to

the meter through a flexible coaxial cable, allowing mea-

surements from a distance without any interference from the

operator.

By simply pressing the RANGE key, it is possible to switch

among three ranges and choose the best resolution accord-

ing to the environment to be tested.

The HI 97500 lux meter is housed in a rugged and water-

resistant body for outdoor use without any problem.

The 9V battery and the automatic shut-off feature guaran-

tee about 200 hours of operation.

FUNCTIONAL DESCRIPTION

1) Liquid Crystal Display (LCD)

2) ON/OFF key, to switch the meter ON and OFF

3) RANGE key, to select the measurement scale

Hanna Instruments reserves the right to modify the design, construction

and appearance of its products without advance notice.

OPERATIONAL GUIDE

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the

environment in which they are used.

Operation of this instrument in residential area could cause unaccept-

able interferences to radio and TV equipments, requiring the operator

to take all necessary steps to correct interferences.

Any variation introduced by the user to the supplied equipment may

degrade the instrument’s EMC performance.

To avoid electrical shock, do not use this instrument when the voltage

at the measurement surface exceeds 24 Vac or 60 Vdc.

To avoid damages or burns, do not perform any measurement in mi-

crowave ovens.

IST97500R2 06/05

• The meter is supplied complete with a 9V battery. Remove

the battery compartment cover on the back of the meter

and install the battery while paying attention to its

polarity.

• Put the light sensor on a stable surface and the meter at

a proper distance to avoid any interference or disturb to the

illumination of the sensor.

• Turn the meter on by pressing the

ON/OFF key.

• Press the RANGE key to select the

proper scale according to the inten-

sity of the light.

• “1. “ on the LCD indicates that it

is necessary to change the measure

scale. Press again the RANGE key.

The decimal point moves through

the display and finally the correct

value is shown.

• Wait for about 1 second for the reading to stabilize.

• After 7 minutes of nonuse, the meter shuts off.

Note: Before taking any measurement, check if the sensor is

clean.

BATTERY REPLACEMENT

When the battery becomes weak,

the meter displays a blinking “V”

on the left side of the LCD.

When the low battery indicator appears only a few hours of

battery life is remaining. A low battery level may also result

in unreliable measurements. It is recommended to replace

the battery immediately.

Unscrew the 3 screws on the back of the meter, remove the

battery cover and replace the battery while paying atten-

tion to its polarity.

Before replacing the cover and tightening the screws, check

that the gasket is in place to ensure a watertight seal.

Battery replacement must only take place in a safe area

and using an alkaline 9V battery.

LIGHT MEASUREMENT

Illuminance is measured by Luxmeters in lux scale, which can

achieve up to 200 Klux for reliable outdoor readings.

For accurate measurements the photosensor has to be cosine

and color corrected.

The cosine correction allows for the effects of light falling on the

cell at oblique angles, while color correction is necessary to

match the spectral sensitivity of the human eye, and it is

defined by the CIE Vλ (“V-lambda”) curve.

The color correction filters usually limit the sensitivity to UV

(ultraviolet) and IR (infrared) radiations.

Note: In many situations the “measuring plane” is either not

specified or nonexistent. In these cases, a height of one

meter above ground or floor level is generally considered

acceptable.

SPECIFICATIONS

Range 0.001 to 1.999 Klux

0.01 to 19.99 Klux

0.1 to 199.9 Klux

Resolution 0.001 Klux

0.01 Klux

0.1 Klux

Accuracy ±6% of reading ±2 digits

Calibration factory calibrated

Light Sensor human-eye-response silicon photodiode

with 1.5m coaxial cable (fixed)

Battery Type 1 x 9V alkaline

Battery Life approx. 200 hours of continuous use

Auto-off after 7 minutes of non-use

Environment 0 to 50°C (32 to 122°F); 100% RH

Dimensions 164 x 76 x 45 mm (6.5 x 3.0 x 1.8")

Weight 180 g (6.3 oz.)

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