FT3424
LUX METER
Instruction Manual
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
September 2014 Revised edition 1 FT3424A980-01 14-09H
English
Contents
Introduction .........................................................................1
Verifying Package Contents ..............................................2
Options (sold separately) ..................................................3
Safety Notes ........................................................................4
Usage Notes ........................................................................7
1 Overview 11
1.1 Overview and Features .................................11
1.2 Parts Names and Functions .........................12
1.3 LCD Display ...................................................16
2 Measurement Methods 19
2.1 Measurement Workfl ow ................................19
2.2 Inserting/Replacing Batteries ......................20
2.3 Attaching the strap .......................................22
2.4 Inspection Before Use ..................................24
2.5 Making Measurements ..................................25
2.6 Selecting the Measurement Range ..............29
3 Applied Functionality 31
3.1 Retaining the Measured Value after a
Set Amount of Time
(Timer Hold Function) ...................................31
Retaining the measured value (TIMER) ...................31
3.2 Disconnecting the Display Unit and
Sensor Unit ....................................................33
Mounting the sensor unit on a tripod ........................34
3.3 Limiting Battery Consumption
(Auto Power Off Function) ...........................35
i
Contents
3.4 Saving Measured Values
(Memory Function) ........................................36
Saving the measured value (MEM) ..........................36
Reading the measured memory data (READ) ..........37
Deleting the most recently saved measured
value (CLEAR) ..........................................................38
Clearing all the saved measurement data ................38
3.5 Logging Illuminance Data
(Output Function) ..........................................39
3.6 Communicating with PC ...............................41
3.7 Disabling the buzzer .....................................42
3.8 Turning On the Backlight ..............................43
4 Specifi cations 45
4.1 Basic Specifi cations .....................................45
4.2 Measurement Specifi cations ........................46
Accuracy ...................................................................46
Characteristic ............................................................47
4.3 Output Specifi cations ...................................48
4.4 Functional Specifi cations .............................48
4.5 General Specifi cations ................................. 49
5 Maintenance and Service 51
5.1 Repair, Inspection, and Cleaning .................51
5.2 Troubleshooting ............................................52
5.3 Error Display ..................................................54
5.4 Display Messages .........................................55
ii
Contents
Appendix Appx.1
Appx. 1 Recommended Levels of Illumination
(Reference) ........................................Appx.1
Appx. 2 Sensor Characteristics Graphs .......Appx.3
Relative Spectral Response Characteristics in
the Visible Spectrum ..........................................Appx.3
Angled Incident Light Characteristics ................Appx.4
Appx. 3 Other Characteristics .......................Appx.5
Appx. 4 Dimensional drawing........................Appx.6
iii
Contents
iv
Introduction
Introduction
Thank you for purchasing the HIOKI FT3424 Lux Meter.
maximum performance from the product, please read this manual
fi rst, and keep it handy for future reference.
To obtain
1
Verifying Package Contents
Verifying Package Contents
When you receive the instrument, inspect it carefully to ensure that
no damage occurred during shipping.
In particular, check the accessories, operation keys of the panel, and
connectors. If damage is evident, or if it fails to operate according to
the specifi cations, contact your authorized Hioki distributor or reseller.
Check the package contents as follows.
FT3424 LR6 Alkaline battery × 2
Carrying Case
(soft)
Instruction manual CD* (USB driver,
dedicated computer
application software,
and communications
specifi cations)
Strap (for instrument)
(p. 22)
Sensor cap
(with strap)
(p. 25)
USB Cable
(Length: 0.9 m)
* The latest version can be downloaded from our web site.
2
Options (sold separately)
Options (sold separately)
The following options are available for the instrument.
Contact your authorized Hioki distributor or reseller when ordering.
Connecting cable/Output cord
Use when positioning the sensor unit
and display unit separately during use.
Required when using the
instrument’s output functionality.
L9820 Connection Cable
(Length: 2 m)
9094 Output Cord
(Length: 1.5 m)
Carrying Case
Handy for storing the instrument with the L9820 Connection cable, 9094
Output cord, and USB cable.
C0201 Carrying Case
(semi-hard)
L9820 Connection Cable
cannot be stored.
C0202 Carrying Case
(soft)
3
Safety Notes
Safety Notes
This instrument is designed to conform to IEC 61010 Safety
Standards, and has been thoroughly tested for safety prior to
shipment. However, using the instrument in a way not described in
this manual may negate the provided safety features.
Before using the instrument, be certain to carefully read the
following safety notes.
CAUTION
• Mishandling during use could lead to damage to
the instrument. Be certain that you understand the
instructions and precautions in the manual before use.
• If persons unfamiliar with electricity measuring instrument,
another person familiar with such instruments must
supervise operations.
Notation
In this manual, the risk seriousness and the hazard levels are
classifi ed as follows.
WARNING
CAUTION
IMPORTANT
Indicates a potentially hazardous situation that may
result in death or serious injury to the operator.
Indicates a potentially hazardous situation that may
result in minor or moderate injury to the operator or
damage to the instrument or malfunction.
Indicates information related to the operation of the
instrument or maintenance tasks with which the
operators must be fully familiar.
Indicates the prohibited action.
Indicates the action which must be performed.
4
Safety Notes
*
Additional information is presented below.
Symbols affi xed to the instrument
Indicates cautions and hazards. When the symbol is printed on the
instrument, refer to a corresponding topic in the Instruction Manual.
Indicates DC (Direct Current).
Symbols for various standards
Indicates the Waste Electrical and Electronic Equipment
Directive (WEEE Directive) in EU member states.
Indicates that the instrument conforms to regulations set out by
the EC Directive.
Screen display
The screen of this instrument displays characters in the following
manner.
ABCDEFGH I J KLMNOPQRSTUVWXYZ
1234567890
A different display is used in the case below.
Displays when power is shutdown (p. 18)
5
Safety Notes
Displays when display unit and sensor unit is not
connected.
Accuracy
We defi ne measurement tolerances in terms of f.s. (full scale), rdg.
(reading) and dgt. (digit) values, with the following meanings:
(Maximum display value)
f.s.
Indicates the maximum displayable value. This is usually the
name of the currently selected range.
(Reading value)
rdg.
The value currently being measured and displayed on the
measuring instrument.
(Resolution)
dgt.
The minimum display unit, indicating a minimum digit of 1.
6
Usage Notes
Usage Notes
Follow these precautions to ensure safe operation and to obtain the
full benefi ts of the various functions.
Before Use
Verify that the instrument operates normally to ensure that no
damage occurred during storage or shipping. If you fi nd any
damage, contact your authorized Hioki distributor or reseller.
Installation
For details on the operating temperature and humidity, see the
specifi cations.(p. 49)
WARNING
Installing the instrument in inappropriate locations may
cause a malfunction of instrument or may give rise to
an accident. Avoid the following locations.
• Exposed to high temperature
• Exposed to corrosive or combustible gases
• Exposed to water, oil, chemicals, or solvents
• Exposed to high humidity or condensation
• Exposed to high quantities of dust particles
• Susceptible to vibration
When the instrument is not in use, store the instrument in a cool,
dark place because optical components are vulnerable to heat.
7
Usage Notes
Handling the cables and cords
CAUTION
• Before use, verify that the insulation on cables and
cords is not damaged and that no metal is exposed.
If you fi nd any damage, replace the cable or cord with
those specifi ed by our company, as the instrument will
not be able to make accurate measurements or send/
receive data otherwise.
• Avoid stepping on or pinching the cables and cords,
which could damage the cable insulation.
• To avoid breaking the base of connectors and jacks, do
not bend or pull them.
• Cables and cords become stiff and rigid at temperatures
of 0°C and lower. Exercise caution in such environments
as bending or pulling on cables and cords may damage
their insulation or cause them to break.
Handling the instrument
CAUTION
• The instrument consists of a sensor unit and a display
unit that can be positioned apart from one another
during operation. To avoid damage, be sure to turn off
the instrument before disconnecting or connecting the
sensor and display units.
• To avoid damage to the instrument, protect it from
physical shock when transporting and handling. Be
especially careful to avoid physical shock from dropping.
• To avoid damage to the instrument, do not short-circuit
the D/A OUTPUT terminal and do not input voltage to
the D/A OUTPUT terminal.
8
Usage Notes
IMPORTANT
• Use only the specifi ed connection cables. Using a non-
specifi ed cable may result in incorrect measurements due to
poor connection or other reasons.
• When measuring illuminance underneath a standard lighting
fi xture, the display may not stabilize. In most cases, a failure
to stabilize is due to fl uctuations in the lighting fi xture’s supply
voltage or to the surrounding environment (for example, a
person’s shadow). Exercise care concerning these factors
when performing measurement.
• The LCD display includes a backlight for use when making
measurements in dim locations. The backlight will activate
automatically when the measured value is retained or when the
measured value data stored in the internal memory is in read
mode, both in low-light environments (approx. 750
To avoid affecting measurement results, the backlight cannot
be turned on during measurement.
• The instrument’s measurement reference level (REF.LEVEL) is
the colored part in the drawing below
• Do not attempt to disassemble the instrument or subject it to
mechanical shock.
.
measurement
reference level
(REF.LEVEL)
or less).
lx
9
Usage Notes
CD disc precautions
• Exercise care to keep the recorded side of discs free of dirt
and scratches. When writing text on a disc’s label, use a pen or
marker with a soft tip.
• Keep discs inside a protective case and do not expose to direct
sunlight, high temperature, or high humidity.
• Hioki is not liable for any issues your computer system
experiences in the course of using this disc.
Precautions during shipment
Observe the following during shipment.Hioki cannot be responsible
for damage that occurs during shipment.
CAUTION
• Handle the instrument carefully so that it is not damaged
due to a vibration or shock.
• To avoid damage to the instrument, remove the
accessories and optional equipment from the instrument
before shipment.
If the instrument is not to be used for an extended
period of time
IMPORTANT
To avoid corrosion and/or damage to the instrument due to battery
leakage, remove the battery and store the instrument in a cool,
dark place if it will not be used for an extended period of time.
10
Overview
1
1.1 Overview and Features
The FT3424 is a multifunctional, high-precision lux meter which
ensures durability.
Engineered for use in a wide range of fi elds and settings,
including with lighting equipment, in lighting work, and in
equipment management.
Wide-range illuminance measurement (0.00 lx to 200000 lx)
Use the display unit and
sensor unit separately
L9820 Connection cable
(option)
Large, easy-to-read LCD
display
Backlight automatically turns on
when you retain the measured
value in a
low-illuminance
environment.
Retaining the measurement (HOLD)
Features the timer hold function.
Sensor unit
Features a luminosity fi lter
designed to approximate the
response of the human eye
with the instrument’s sensitivity
to wavelength.
Ability to send data
to a computer and
to be controlled by a
computer
Use the included dedicated
computer application
(after connecting
the instrument
with a USB cable)
to download data and control
the instrument.
Memorizes measured value
Internal memory can store up
to 99 measured values, which
can be sent together to a
computer.
11
Parts Names and Functions
3
4
6
1.2 Parts Names and Functions
Front/Right Side
Sensor unit
Illuminance
sensor
Sensor
cap
(p. 25)
Reference
level
indication
Display unit
LCD display
Operation
Lux meter could be seperated into sensor unit and display unit. (p. 33)
(Use the option L9820 Connection cable)
(p. 16)
keys
(p. 12)
Strap hole (p. 22)
USB terminal
(mini B type)
D/A OUTPUT
terminal
(p. 39)
Operation keys
1 2
3
4
5
6
12
Parts Names and Functions
1
2
3
4
Normal
for at least 1
second
Press and hold
1
2
3
4
Power ON Power OFF -
Retains the
measured value or
cancels retention of
the measured value.
• Switches the
range. (p. 29)
• Cancels read mode,
which allows you to
view the measured
values stored in the
internal memory.
(p. 37)
Performs zeroadjustment.
Start timer hold
function (p. 31)
Automatically retain
after 5 to 60 seconds
(designating the time
is possible)
Switches to auto range.
*1
• Allows you to delete
the last saved
measured value.
(p. 38)
• Cancels zero
adjustment when
is displayed.
[CAP]
Turn on the
instrument
while pressing
and holding
Cancels the
auto power off
function (APS).
(p. 35)
Displays the
software version
of the instrument.
Places the
instrument in the
*1
state that enables
all measured
values stored
in the internal
memory to be
deleted.
(p. 38)
13
Parts Names and Functions
5
6
Normal
for at least 1
second
Press and hold
5
6
*1: Read mode, which allows you to view the measured values stored in
the internal memory.
*2: The
measured values stored in the internal memory.
*3: During operation of timer hold function.
• Save measured
value in internal
memory. (p. 36)
• Increases the
memory No.
• Increases the
time remaining
on the timer.
• Decreases the
memory No.
• Decreases the
time remaining
on the timer.
and can only be operated when there are multiple
Continuously
increases the memory
*1
(p. 37)
No.
*1, *2
*3
• Loads measured
*1, *2
values stored in the
internal memory for
viewing. (p. 37)
*3
• Continuously
decreases the
memory No.
(p. 37)
*1
Turn on the
instrument
while pressing
and holding
All LCDs light up.
Sets the buzzer
sound nonactivated.
(p. 42)
14
Parts Names and Functions
Tripod mounting thread
Use when mounting the sensor
unit on a tripod. The hole is located
exactly behind the center point of the
illuminance sensor on the front of the
sensor unit. (p. 34)
Collation No.
Verify that the collation numbers on
the sensor unit and display unit match
before use.
Serial No.
It is necessary for production control
such as product warranty.
Do
Do not peel off the label.
Measurement range
The measurement range of the
instrument is noted.
Battery Cover
When replacing the batteries
remove the cover.
Explains which battery to use.
See p. 20
(p. 20),
15
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