Hanna Instruments HI 97500 User Manual

Instruction Manual

HI 97500

Portable Luxmeter

http://www.hannainst.com

This Instrument is in

Compliance with the CE Directives

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 [e-mail].

This instrument is in compliance with directives.

PRELIMINARY EXAMINATION

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.

FUNCTIONAL DESCRIPTION

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, Hanna Instru­ments Inc., Woonsocket, Rhode Island, 02895 , USA.

Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.

GENERAL DESCRIPTION

HI 97500 Hanna portable luxmeter has been designed for
simplicity of use in taking rapid light measurements.

The meter is provided with a light sensor connected by a
flexible coaxial cable, which allows remote, stable and
optimum position light measurements, without any interfer­ence of the operator.

It is possible to choose among three measure ranges, simply
acting on the RANGE key.

The HI 97500 luxmeter is housed in a rugged waterproof
case for outdoor measurements without any problem.

The 9V battery and the auto-off feature last about 200
hours of use.

1) Liquid Crystal Display (LCD)

2) ON/OFF key

3) RANGE key, to select the measurement scale

SPECIFICATIONS

OPERATIONAL GUIDE

LIGHT MEASUREMENT

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-eyes-response silicon photodiode

with 1.5m coaxial cable (fixed)

Battery Type 1 x 9V alkaline
Battery Life 200 hours of continuous use
Auto-off after 7 minutes of nonuse
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")

• 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 in­tensity 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.

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.

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 unaccept­able 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 24VAC or 60VDC.

To avoid damages or burns, do not perform any measurement in
microwave ovens.

ISTR97500R1 09/02

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

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

Note: it is recommended to check if the sensor is clean before

taking any measurement.

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 atten­tion to its polarity. Make sure that the battery contacts are
tight and secure before replacing the cover.

Replacement must only take place in a nonhazardous area
using an alkaline 9V battery.