Hanna Instruments HI 97500 User manual

Instruction Manual
HI 97500
Portable Luxmeter
http://www.hannacan.com
This Instrument is in
Compliance with the CE Directives
Hanna Instruments reserves the right to modify the design, con-
struction and appearance of its products without advance notice.
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 in-
structions. 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 pre-
scribed maintenance are not covered.
If service is required, contact the dealer from whom you pur-
chased 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 de-
partment 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 Instru-
ments Inc.
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 Hanna portable luxmeter has been designed
for simplicity of use in taking rapid light measure-
ments.
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.
FUNCTIONAL DESCRIPTION
1) Liquid Crystal Display (LCD)
2) ON/OFF key
3) RANGE key, to select the measurement scale

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 unac-
ceptable 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
• 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.
• 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.
LIGHT MEASUREMENT
Illuminance is measured by Luxmeters in lux scale,
which can achieve up to 200
Klx 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
Range0.001 to 1.999Klx
0.01 to 19.99Klx
0.1 to 199.9Klx
Resolution0.001Klx
0.01Klx
0.1Klx
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")