Hioki 3640-20 User manual

INSTRUCTION MANUAL
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3640-20
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LUX LOGGER

Contents
Introduction i
Inspection ii
Safety Notes iii
Notes on Use v
Measurement Flow Chart and Reference Guide vi
Chapter 1 Product Overview 1
1.1 Name and Functions of Parts 2
1.2 Interval and Maximum Recording Time 3
Chapter 2 Set Up 5
2.1 Replacing the Battery 5
2.2 Power Save Function 7
2.3 Setting Current Time 8
2.4 Connecting 9662 LUX SENSOR 9
Chapter 3 Settings 11
3.1 Setting Items 11
3.2 Manual Setting 14
3.3 Setting by COMMUNICATION BASE 16
Chapter 4 Specifications 19
Chapter 5 Reference 21
5.1 Recommended Levels of Illumination 21
5.2 Relative Spectral Response Characteristics
in the Visible Spectrum 23
5.3 Angled Incident Light Characteristics 24
Chapter 6 Maintenance and Service 25

i
_____________________________________________________________________
Introduction
______________________________________________________________
Introduction
Thank you for purchasing this HIOKI "3640-20 LUX
LOGGER." To get the maximum performance from the
unit, please read this manual first, and keep this at hand.

ii
_____________________________________________________________________
Inspection
______________________________________________________________
NOTE Testing monitor batteries installed in the unit may possibly be
weak. Replace batteries before extended measurement usage.
Ins
p
ection
When the unit is delivered, check and make sure that it has
not been damaged in transit. If the unit is damaged, or fails
to operate according to the specifications, contact your
dealer or HIOKI representative.
Accessories
9662 LUX SENSOR
Instruction Manual
LR03 alkaline battery X4 (built into this unit, for monitor)
Before using the product the first time, verify that it
operates normally to ensure that the no damage occurred
during storage or shipping. If you find any damage, contact
your dealer or Hioki representative.

iii
_____________________________________________________________________
Safety Notes
______________________________________________________________
DANGE
R
This equipment is designed according to IEC 61010-1
Safety Standards, and has been tested for safety prior
to shipment. Incorrect measurement procedures
could result in injury or death, as well as damage to
the equipment. Please read this manual carefully and
be sure that you understand its contents before using
the equipment. The manufacturer disclaims all
responsibility for any accident or injury except that
resulting due to defect in its product.
Safety Symbols
This symbol is affixed to locations on the equipment
where the operator should consult corresponding topics
in this manual (which are also marked with the
symbol) before using relevant functions of the
equipment.
In the manual, this mark indicates explanations which it
is particularly important that the user read before using
the equipment.
Indicates DC (Direct Current).
Safet
y
Notes
This Instruction Manual provides information and warnings
essential for operating this equipment in a safe manner and
for maintaining it in safe operating condition. Before using
this equipment, be sure to carefully read the following
safety notes.

iv
_____________________________________________________________________
Safety Notes
______________________________________________________________
DANGE
R
Indicates that incorrect operation presents extreme
danger of accident resulting in death or serious injury
to the user.
WARNING
Indicates that incorrect operation presents significant
danger of accident resulting in death or serious injury
to the user.
CAUTION Indicates that incorrect operation presents possibility
of injury to the user or damage to the equipment.
NOTE Denotes items of advice related to performance of the
equipment or to its correct operation.
f.s. (maximum display or scale value, or length of scale)
Signifies the maximum display (scale) value or the length
of the scale (in cases where the scale consists of unequal
increments or where the maximum value cannot be
defined).
In general, this is the range value (the value written on
the range selector or equivalent) currently in use.
rdg. (displayed or indicated value)
This signifies the value actually being measured, i.e., the
value that is currently indicated or displayed by the
measuring instrument.
dgt. (resolution)
Signifies the smallest display unit on a digital measuring
instrument, i.e., the value displayed when the last digit on
the digital display is "1".
The following symbols are used in this Instruction Manual
to indicate the relative importance of cautions and
warnings.
Accuracy
The specifications in this manual include figures for
"measurement accuracy" when referring to digital
measuring instruments, and for "measurement tolerance"
when referring to analog instruments.

v
_____________________________________________________________________
Notes on Use
______________________________________________________________
CAUTION Do not store or use the product where it could be exposed
to high temperature or humidity, or condensation. Under
such conditions, the product may be damaged and
insulation may deteriorate so that it no longer meets
specifications.
NOTE Attach the supplied light sensor cap to the detector and then
perform zero ajustment before measurement.
Do not store or use the tester where it will be exposed to direct
sunlight, high temperature, high humidity, or condensation. If
exposed to such conditions, the tester may be damaged, the
insulation may deteriorate, and the tester may no longer satisfy
its specifications.
The reference level as marked on the faceplate is the tip of the
light sensor.
Notes on Use
In order to ensure safe operation and to obtain maximum
performance from the unit, observe the cautions listed
below.

vi
_____________________________________________________________________
Measurement Flow Chart and Reference Guide
______________________________________________________________
Is there sufficient
battery charge remaining
to o
p
erate 3640-20?
Replace batteries
Setting current time
See 2.1.
Connecting sensor See 2.4.
Set current time when using 3640-20 for the
first time or re
p
lacin
g
batteries. See 2.3.
Zero ajustment See 2.4.
Setting 3640-20
stand-alone
・Interval
・Range
Setting 3640-20
with COMMUNICATION
BASE
・Interval
・Current time
・Start control
・Recording method
Setting 3640-20 with
COMMUNICATION BASE
and PC
・Interval ・Current time
・Start control ・Range
・Recording method
・Comment
See 3.2.
Press REC/STOP
button to start
measurement.
Settin
g
start control
Start control o
p
tions
No
Yes
Quick start
Prescheduled start
Starts measurement
immediately.
Starts measurement at
prescheduled time.
Setting
recordin
g
method
Endless
One time
When recording data
reaches 32000
measurement stops.
When recording data exceeds 32000, it overwrites
previously recorded data.
Press REC/STOP button to stop measurement.
After measurement is complete, disconnect sensor. Use COMMUNICATION BASE to
send measurement data to personal computer. (See COMMUNICATION BASE
instruction manual.)
See 3.2.
Measurement Flow Chart and Reference Guide

1
_____________________________________________________________________
______________________________________________________________
NOTE 3640-20 LUX LOGGER are not able to set up it to 3910-20
COMMUNICATION BASE.
Use 3911-20, 3912-20 COMMUNICATION BASE to set 3640-
20.
Chapter 1
Product Overview
3640-20 LUX LOGGER with 9662 LUX SONSOR records
1 channel of data at illuminance.
Data is saved in nonvolatile memory when batteries are
weak or removed for replacement.

2
_____________________________________________________________________
1.1 Name and Functions of Parts
______________________________________________________________
LCD
Optical data
transfer
p
orts
INTERVAL
button
Zero ajustment
button
REC/STOP button
(
SELECT
)
button
Sensor connection
terminal
Ran
g
e button
LCD Displays measurement value and settings.
Optical data
transfer ports
Enables optical data transfer to
COMMUNICATION BASE.
INTERVAL button Calls up interval setting display to set interval.
Zero ajustment
button
Performs zero adjustment for the Lux Sensor.
REC/STOP button Pressing more than 1 second initiates or stops
recording.
(SELECT) button Interval is selected in interval setting display.
Sensor connection
terminal
Connects 9662 LUX SENSOR.
Range button Changes measurement range from 2000
lx/20000 lx/2000000 lx.
1.1 Name and Functions of Parts

3
_____________________________________________________________________
1.2 Interval and Maximum Recording Time
______________________________________________________________
INTVL Maximum Recording Time
1s 8h53min20s
2s 17 h 46 min 40 s
5s 1 day 20 h 26 min 40 s
10 s 3 day 16 h 26 min 40 s
15 s 5 day 13 h 20 min
20 s 7day9h46min40s
30 s 11 day 2 h 40 min
1min 22 day 5 h 20 min
2min 44 day 10 h 40 min
5min 111 day 2 h 20 min
10 min 222 day 5 h 20 min
15 min 333 day 8 h
20 min 444 day 10 h 40 min
30 min 666 day 6 h
60 min 1333 day 8 h
1.2 Interval and Maximum Recording Time
Interval and maximum recording time (when power save
function is valid) are as follows.
Maximum recordable data is 32000 per unit.

4
_____________________________________________________________________
1.2 Interval and Maximum Recording Time
______________________________________________________________

5
_____________________________________________________________________
2.1 Replacing the Battery
______________________________________________________________
WARNING
During battery replacement, use caution not to put any
foreign materials such as a metal object into the unit to
avoid damage to the unit.
Before using the product after replacing the batteries,
replace the cover and screw.
Do not mix old and new batteries, or different types of
batteries. Also, be careful to observe battery polarity
during installation. Otherwise, poor performance or
damage from battery leakage could result.
Handle and dispose of batteries in accordance with
local regulations.
CAUTION When exchanging the batteries, the circuit may sometimes
short circuit due to static electricity. As far as possible, do
not touch the base board with bare hands.
Chapter 2
Set Up
2.1 Replacing the Battery
Installing new batteries ensures about 1 year of recording.
(reference value with interval setting set to 1 minute or
more, power save setting set to valid and at 20 )
Remaining battery power indicator ( )indicates
remaining battery life reducing incrementally from right.
Empty battery power indicator ( ) indicates time to
replace batteries.

6
_____________________________________________________________________
2.1 Replacing the Battery
______________________________________________________________
1. Remove back cover screw
to remove cover. Verify
polarity and install four
new LR03 alkaline
batteries.
2. Fit cover properly and
tighten screw.

7
_____________________________________________________________________
2.2 Power Save Function
______________________________________________________________
Slee
p
in
g
......
NOTE See COMMUNICATION BASE instruction manual to connect
logger and to install application software. To use application
software, see operation guide.
2.2 Power Save Function
Display window is automatically turned off in
approximately 15 seconds after last key entry. (Sleep)
However, while recording, REC/ / mark shows each
conditions.
Press any button to turn display on to display measurement
value or to set settings.
Note when interval setting display is on, sleep does not
engage with no button press.
Initially, power save function is on. To turn off power save
function, follow the instructions below.
When power save function is off, maximum continuous
duration is approximately 10 days.
1. Connect logger, COMMUNICATION BASE and
personal computer.
2. Start up application software packaged with
COMMUNICATION BASE.
3. Go to Communications on the menu bar and select
Power Save Options. Choose Off to turn off power save
function.

8
_____________________________________________________________________
2.3 Setting Current Time
______________________________________________________________
2.3 Setting Current Time
When replacing 3640-20 LUX LOGGER batteries or using
3640-20 stand-alone (with manual operation) for the first
time, connect with COMMUNICATION BASE and set
current time.
See how to set current time in COMMUNICATION BASE
instruction manual.

9
_____________________________________________________________________
2.4 Connecting 9662 LUX SENSOR
______________________________________________________________
WARNING
To avoid damaging the unit, do not use any other
sensors except 9662 LUX SENSOR as sensor
connection terminal.
Cap
Lens
Lens ring
Measurement reference plane
(REF. LEVEL)
Cord length: 2000 mm
2.4 Connecting 9662 LUX SENSOR
Connecting 9662 LUX SENSOR
Connecting 9662 LUX SENSOR to sensor connection
terminal.When connecting sensor, securely insert connection
cable to unit as designated by triangle mark ▲on
connection terminal.
Improper connection results in failure to output accurate
signal. The unit cannot display the correct reading value
unless the cable is inserted fully as illustrated.
9662 LUX SENSOR

10
_____________________________________________________________________
2.4 Connecting 9662 LUX SENSOR
______________________________________________________________
Electromagnetic noise may cause measurements to fluctuate
if the instrument is used in the vicinity of an inverter-type
power supply or radio transmitter. In such situations, make
a loop in the Lux Sensor cable and clamp the provided
ferrite core around the loop as shown in the illustration
below.
Zero ajustment
With the measurement value displayed, place the cap
provided over the lens. If you press the zero adjust button,
"0Adj" appears on the LCD, and zero adjustment is
performed for all ranges.
If the REC mark or " " mark is displayed on the LCD,
zero adjustment cannot be performed.
If the cap is not set (100 x1 or greater for the 2000 1x
range), "CAP" appears on the LCD. Make sure the cap is
set.
"CAP" goes out after a few seconds, and the measurement
value reappears. If the cap is set while "CAP"isdisplayed,
zero adjustment is performed automatically.