Topcon IM-600 User manual

INSTRUCTION MANUAL
DIGITAL ILLUMINANCE METER
Rev.7

1

2
INTRODUCTION
Thank you so much for your purchasing our TOPCON TECHNOHOUSE Digital Illuminance meter IM-
600 series.
This manual describes an outline, basic operation procedure and specifications regarding the Digital
Illuminance meter IM-600/IM-600M. Read this instruction manual carefully before using this
instrument.
The IM-600M has the same function as the IM-600 other than Detector unit. About IM-600M, this
manual describes the point of difference from IM-600.

3
HANDLING PRECAUTIONS
Be sure to use the designated AC adapter for this instrument. The use of any AC adapter
which is not designated herein may result in failures. The input power voltage is AC 100V
to 240V, and its frequency is 50Hz or 60Hz.
Be sure to turn off the power switch before connecting/disconnecting the detector unit and/or
USB, AC adapter.
Do not bring any radio communication unit such as transceivers, etc. close to this instrument.
This may cause the readout to be unstable.
Do not use this instrument in an area with a lot of dust, very high humidity and possibly
corrosive gases.
Do not use this instrument in an area where the ambient temperature changes rapidly. This
instrument has a built-in temperature compensation circuit, but in some cases, stable
measurements may not be possible under an environment with a rapidly changing
temperature.
Do not subject to strong shock caused by falling, etc. to this instrument, and do not use or
store the instrument in or on a place with continuous vibration. This instrument contains
precision components which may be damaged under such conditions.
The instrument can operate within a temperature range from −10C to +40C, but it is
delayed a little responding with the liquid crystal display panel when used in a range of –
10C to +0C.
Do not store the instrument at a place having a temperature either of more than +60C or
less than -20C.
Remove the battery to avoid leakage and store the instrument when unused for a month or
more.
When the detector window has got dirty, any measurement error may occur. Wipe off the
detector with a dry cloth.
The instrument case is made of plastic. Do not wipe with any chemicals (acetone, thinner,
etc.). Do not bring it near any place whose temperature exceeds 60C.
To maintain required measurement accuracy, calibrate this instrument at least once a year.
Contact your dealer or TOPCON TECHNOHOUSE to request a calibration test.
On calibration, the correction factors memorized in this instrument are deleted. Conduct
back-up recording of necessary measured data before requesting calibration.
When the power switch is turned on, the battery is consumed because the instrument
repeatedly conducts measurement for as long as the turning on the power. Please turn off
the power switch for power saving when you do not use it.
For energy saving, when the unit will not be used for an extended period of time, unplug the
power plug from the socket.
Keep the instrument away from water and liquid. This instrument is not water-resistant.

4
SAFETY INDICATIONS
Warnings and Cautions are indicated on this instrument and in the instruction manual to prevent injury
to users and others, prevent damage to property or the like, and to ensure safe use of this instrument.
After fully understanding the following indications and symbols, carefully read the section "Safety
Precautions," and observe all precautions.
Display
Meaning of display
This display indicates that incorrect handling with disregard for this
display may cause danger resulting in death or severe injury.
This display indicates that incorrect handling with disregard for this
display may cause accidents resulting in injury*1 ,or damage to
property*2.
*1: This refers to injury such as burns, electric shock or the like that does not require
hospitalization or long-term medical attention.
*2: Damage to property means considerable damage to a building, furniture, livestock or pets.
Diagram
Meaning of display
This icon indicates Prohibition.
Specific content is expressed with words or an image located close to the
icon.
This icon indicates Mandatory Action.
Specific content is expressed with words or an image located close to the
icon.
This indicates Hazard Alert (Warning).
Specific content is expressed with words or an image located close to the
icon.
Caution
Warning

5
SAFETY PRECAUTIONS
Warning
Do not use this instrument near flammable or combustible gases (gasoline,
etc.).
Failure to do so might cause fire.
Keep the instrument away from water and liquid.
Doing so might cause fire or electric shock.
Do not disassemble or modify this instrument.
Doing so might cause fire or electric shock.
Be sure to use the authorized AC adapter.
AC adapter malfunctions may result in fire or electric shock.
Do not disassemble the AC adapter.
Doing so might cause fire or electric shock.
Remove dust or moisture from the AC adapter plug.
Failure to do so might cause fire.
If you notice strange noise, smell or smoke from this instrument, immediately
turn the instrument OFF and unplug the AC adapter from the power outlet.
Continued use of this instrument in this state might cause fire.
Contact your dealer or Topcon Technohouse Corporation.
Caution
Insert the batteries with current polarity position.
Otherwise, battery leakage may occur, resulting in personal injury or product failure.
Do not place this instrument on an unstable stand or uneven surface.
Failure to do so might cause the instrument to fall or tip over.
Do not bring any goods with a static charge near to ESD mark.
Otherwise, it may cause failures or incorrect measurements.
Use only specified screws when using the tripod screw and screw holes for jig
attachment.
Do not tighten the screws any more than necessary. Doing so might cause internal
breakage.
Prohibited
Mandatory
Prohibited
Prohibited
Prohibited
Mandatory
Prohibited
Mandatory
Prohibited
Prohibited
Mandatory

6
DISCLAIMER
・TOPCON accepts no responsibility for any damages resulting from fires, earthquakes,
deeds of any third party and other accidents, as well as damages caused by the user’s
intentional or negligent actions, erroneous usage and other usage of the instrument under
abnormal conditions.
・TOPCON accepts no responsibility for any incidental damages such as loss of business
and discontinuance of business caused by use or out of commission of this instrument.
・TOPCON accepts no responsibility for any damages caused by use other than that
instructed in the instruction manual.
・TOPCON accepts no responsibility for any damages caused by erroneous equipment
behavior due to use in combination with other equipment or apparatus.
USER MAINTENANCE
Conduct maintenance work only as instructed in this manual. Never conduct any other
maintenance work which is to be done by our service staff for safety and maintaining
performance. The following maintenance work can be carried out by the user. The details
of maintenance work are indicated in this manual.
Cleaning of body and detector window
Remove dirt on the body cover and detector window with a soft cloth with thin mild detergent,
and then wipe the detergent off with a dry, soft cloth.
When the detector unit has got dirty and got oil adhesion such as fingerprints, any
measurement error may occur. Wipe off the detector methodically.
Do not use solvents such as thinner, benzene or acetone. Such products may change the
surface color.

7
CONTENTS
INTRODUCTION.........................................................................................................................................2
SAFETY INDICATIONS...............................................................................................................................4
NOTATIONS IN THIS MANUAL...................................................................................................................9
1. BEFORE USE .......................................................................................................................................... 10
1.1 CHECK OF MAIN BODYANDACCESSORIES............................................................................ 10
1.2 NAMESAND FUNCTIONS OF PARTS..........................................................................................11
1.3 PREPARATION............................................................................................................................. 15
1.3.1 HOW TO MOUNT THE DETECTOR UNIT ........................................................................... 15
1.3.2 HOW TO INSERT A BATTERY ............................................................................................. 16
1.3.3 CONNECTION OF AC ADAPTER (Separately sold optional accessory) ............................. 17
1.3.4 ILLUMINANCE UNIT “lx” AND “fc” ........................................................................................ 18
1.3.5 CONNECTING TO PC ........................................................................................................... 19
1.3.6 HOW TO TURN POWER ON/OFF ........................................................................................ 20
2. MEASUREMENTS PROCEDURES ........................................................................................................ 21
2.1 SETTING RESPONSE SWITCH................................................................................................... 21
2.2 AUTO-RANGE MEASUREMENTAND DISPLAY RANGE............................................................ 21
2.3 MANUAL-RANGE MEASUREMENTAND DISPLAYRANGE....................................................... 23
2.4 HOW TO USETHEANALOG OUTPUT CONNECTOR ................................................................ 25
3. SETTING PROCEDURES........................................................................................................................ 26
3.1 NUMERIC VALUE ENTRY............................................................................................................ 26
3.2 ILLUMINANCE MEASUREMENT (LX MODE)............................................................................... 26
3.3 ILLUMINANCE MEASUREMENT(FC MODE) ............................................................................... 27
3.4 CORRECTION FACTOR (C.C.F. SETTING).................................................................................... 27
3.4.1 SETTING PROCEDURE (Ex:To enter 1.2) ........................................................................... 28
3.5 DIFFERENCE MEASUREMENT (  MODE) ................................................................................. 30
3.5.1 ENTRY PROCEDURE (eg: Entering 100.0 as the reference value) ..................................... 31
3.5.2 HOW TO CHECK THE SETTING .......................................................................................... 32
3.6 PERCENT MEASUREMENT (% MODE) ...................................................................................... 33
3.7 LUMINOUS INTENSITYMEASUREMENT (CD MODE) ......................................................... 34
3.8 INTEGRALILLUMINANCE MEASUREMENT (LX・H/FC・HMODE)....................................... 35
3.9 ZEROADJUSTMENT (CALMODE).............................................................................................. 37
4. COMMUNICATION WITH PC .................................................................................................................. 38
4.1 COMMUNICATION COMMAND.................................................................................................... 38
4.1.1 STRn COMMAND .................................................................................................................. 39
4.1.2 ISRn COMMAND ................................................................................................................... 39
4.1.3 ISTRn COMMAND ................................................................................................................. 40
4.1.4 IEND COMMAND .................................................................................................................. 40
4.1.5 CA COMMAND ...................................................................................................................... 41
4.1.6 WHO/VER/SRL COMMAND .................................................................................................. 41
4.1.7 SCCF COMMAND ................................................................................................................. 42
4.1.8 RCCF COMMAND ................................................................................................................. 42
4.2 OUTPUT FORMAT........................................................................................................................ 43
4.2.1 OUTPUT FORMAT FOR REMOTE MEASUREMENTS ....................................................... 43
4.3 USB DRIVER................................................................................................................................... 44
5. ERROR MESSAGE.................................................................................................................................. 46
5.1 INSTRUMENT ERROR CODE...................................................................................................... 46
5.2 COMMUNICATION ERROR CODE .............................................................................................. 47
6. APPENDIX ............................................................................................................................................... 48
SPECIFICATIONSAND PERFORMANCE............................................................................................... 48
COLOR CORRECTION FACTOR ............................................................................................................ 49
BLOCK DIAGRAM.................................................................................................................................... 50

8
OUTLINE DIMENSION ............................................................................................................................. 52
GRAPH ..................................................................................................................................................... 53

9
NOTATIONS IN THIS MANUAL
The following notational conventions are used in this manual:
Notation
Description
[CALL] , [  ]
Means a menu title shown on a keyboard and the display of the
instrument.
☞‘’
Indicates a text referred to in this manual.
☞“”
Indicates other instruction manual to be referred to.
Request
Explains matters to be acknowledged or to be considered for the
operation of this instrument.
Memo
Explains matters to be referred to or to be useful for the operation of
this instrument.

10
1. BEFORE USE
1.1 CHECK OF MAIN BODY AND ACCESSORIES
Check that all the following items are included.
If not complete, please contact your dealer or TOPCON TEHCHNOHOUSE.
・Instrument (IM-600 or IM-600M) 1
IM-600 IM-600M
Accessories
・Cap 1
・USB Driver / instruction manual 1
・Leather case 1
・Analog output plug 1
・Detector unit(IM-600M Only) 1
Detector unit (IM-600M)
Cap
プ
Analog output plug
Leather case
USB Driver/Instruction Manual

11
1.2 NAMES AND FUNCTIONS OF PARTS
■Main body
IM-600
IM-600M
Detector window
（Reference plane）
Sensor Unit
Detector Unit
Cap
Detector unit
Display panel
Battery compartment
Power switch
Hold button
Response switch
Hand strap
USB connector
Detector window
Display unit
Keyboard
DC-power input connector
Screw for mounting tripod (1/4”screw)
Cap
Analog output connector
Serial Number
Reference plane

12
Name
Description
Detector window
The sensor of this instrument. Light should be uniformly distributed over
whole surface of the detector window.
Display panel
Various kinds of information such as measurement and measuring
condition is shown on the display panel.
Response switch
The response time can be changed. Select either “FAST’’ or “SLOW”
according to the target light source.
Response switch
Range
Response speed (90%)
FAST
1
About 60 ms
2
About 6 ms
3
About 0.6 ms
4
About 0.6 ms
5
About 0.6 ms
6
About 0.6 ms
SLOW
1 - 6
About 4 s or less
Hold switch
By pushing this hold switch during measurement, Measurement is
paused and readout is fixed.
USB connector
This connector is used to connect the instrument to PC in remote mode.
Connecting PC ☞‘1.3.4 Connecting PC’
Tripod screw
A screw hole to fasten the instrument to a tripod.
Specification : 1/4-UNC (depth 5mm)
Keyboard
This keyboard is to select functions and to input numeric value.
Power switch
Power switch for this instrument.
External power
Connector
Connector for designatedAC adapter (optional accessory).
Request
Use only specified screws when using the tripod screw and screw holes for
jig attachment. Do not tighten the screws any more than necessary. Doing so
might cause internal breakage.
■Names and functions of keyboard
MANUAL RANGE
0～9switch
SET switch
C.C.F.switch
cd switch
⊿switch
(Decimal point switch)
(START/STOP switch)
(CAL. switch)
SHIFT switch
AUTO / MANUAL
％switch
INV.switch
lx switch
lx・h switch

13
The function of each switch is as follows:
Switch
Description
[AUTO/MANU.]
Auto/Manual
Switch for selection between [AUTO] and [MANU].
[AUTO]: Optimum measurement range is automatically selected
according to illuminance level.
[MANU.]: Measurement range is manually set.
Display range ☞‘2.1 Auto-range measurement and display range’
[MANU. RANGE]
Manual Range
Changes the measurement range to the next manually.
Measurement range are switched in turn as follows;
1→2→3→4→5→6
Display range ☞‘2.2 Manual-range measurement and display range’
[C.C.F.]
Color Correction Factor
Sets and confirms the value of the correction factor in correction factor
mode. The IM-600 can memorize one correction factor data.
[INV.]
Inverse
Changes the assignment of function to keys.
([cd] to [CALL], [0 ～9] to [ ], [SHIFT] to [CAL.], [SET] to
[START/STOP])
[％]
Switches to percent mode in which the instrument measure the ratio of
the difference between measured illuminance data and reference
illuminance data. (% mode)
In addition, sets reference illuminance data.
[⊿]
Switches to illuminance difference measurement mode in which the
instrument measure the difference between measured illuminance data
and reference illuminance data. (⊿mode)
In addition, sets reference illuminance data.
[lx]
Enters illuminance measurement mode. (lx mode)
[lx・h]
Enters integral illuminance measurement mode.(lx・h mode)
[cd]
Enters luminous intensity mode (cd mode).
[0 - 9]
Increments the numerical value when inputting reference data and
correction factor.
[SHIFT]
Moves the cursor down digit when inputting reference data and
correction factor.
[SET]
Confirms your entry by pressing this button in each setting.
[CALL]
([INV.]+[cd])
In the % and the ⊿mode, shows entered reference illuminance data
for 3 seconds.
In the cd mode, shows entered distance data for 3 seconds.
[ ]
([INV.]+[0 - 9])
Sets decimal point when entering the reference illuminance data,
distanced data, and correction factor in each mode.
[CAL.]
Calibration
([INV.]+[SHIFT])
Starts zero-adjustment manually. Zero-adjustment provides constant
sensitivity of photo detector and steady measurement. Each time
turning on the power, zero-adjustment starts automatically without
pushing the [CAL.] switch.
[START/STOP]
([INV.]+[SET])
Starts or stops integral illuminance measurement in the lx・h mode.

14
■Names of parts on display screen
Displayed letters
Description
[CAL.]
Appears during operating zero-adjustment.
[MANU.]
Appears during operating zero-adjustment and manual range mode
[123456]
Shows the currently used range
[BAT.]
Appears when battery capacity is low. Replace batteries as soon as
possible when this letter appears.
[  ]
Appears during measurement and inputting reference values in the
illuminance difference measurement mode (  mode).
[±]
Either [+] or [-] appears to mark the difference from the reference value
in the  mode.
[%]
Appears during measurement and inputting reference values in the %
mode.
Measurement display
Displays readout.
[INV.]
Each time Pushing the [INV.] switch turns the display on and off
Displayable only when the [INV.] switch is enable.
[C.C.F.]
Appears when the correction factor is set and enable.
[lx]
A unit for illuminance. Appears when lx mode and during inputting
reference value in % mode,  mode.
[lx・h]
A unit for integrated illuminance.
[cd]
A unit for luminous intensity.
Zero-adjustment display
Mode selection display
Battery Indicator
Mode selection display
Inverse display
Readout display
Measurement range display
Manual range display
Correction factor display
Mode selection
display

15
1.3 PREPARATION
1.3.1 HOW TO MOUNT THE DETECTOR UNIT
Push in the detector along with the connector guide in the arrow direction.
Be sure to turn off the power switch before connecting disconnecting the detector unit.
Request
・Combines the Detector unit and the Display unit having the same serial
number.
If you combine the Detector unit and the Display unit having different
serial number, measured value may not be correct.
・Make sure that the Detector unit is mounted to the Display unit.
Memo
IM-600
IM-600M
Insert Detector unit along a guide

16
1.3.2 HOW TO INSERT A BATTERY
Two AA batteries are required.
Those for operation check do not attach at the time of shipment.
Purchase those at your dealer.
1 Turn the power switch off and uncover the battery compartment.
2 Insert a battery according to a polar indication shown on the battery compartment.
3 Mount the battery compartment.
Battery life at room temperature
Not using USB
Using USB
Battery life
70 hours or more
35 hour or more
（Using alkaline cell）

17
1.3.3 CONNECTION OF AC ADAPTER
(Separately sold optional accessory)
Only use the designated AC adapter.
Unapproved AC adapters may cause fire or electric shock.
Be sure to remove dust and water at the plug and receptacle for the AC adapter.
Otherwise, it may cause fire.
Do not remove or insert the plug with wet hands.
Otherwise, it may cause electric shock.
Procedure for connection of the AC adapter to this instrument is as follows:
1 Be sure that the power switch of this instrument is turned to OFF.
2 Insert the connector of theAC adapter to the instrument.
3 Insert the plug of the AC adapter to the receptacle.
Compulsory
Compulsory
Prohibition

18
1.3.4 ILLUMINANCE UNIT “lx”AND “fc”
In this instrument, “Lux”(lx) or “Foot candle”(fc) can be selected by setting the Dip switch.
There is a following relation between Lux and Foot candle.
1[lx] = 0.0929[fc]
The internal operation of this instrument is done on Lux. the value of Lux is converted into
Foot candle while “fc”unit appears,
This manual describes instruction on “lx”. Convert it according to the above formula if
necessary.
lx
fc

19
1.3.5 CONNECTING TO PC
To use this instrument with a PC, use a USB cable (Cable Type: A connector –mini B connector) to
connect to the PC.
・The USB cable is not included with standard package. Please purchase it
separately.
・For connection to a PC, refer to your PC manual as well.
Request
・Never plug any connectors in or out while the instrument power is on.
■Connector Pin Assignment
■Communication parameters
This instrument conducts USB communications through a virtual COM port. When you prepare
your own communication programs the following communication parameters should be set.
Communication parameters
Baud rate
38400
Data length
7
Parity
ODD (odd number)
Spread bit
1
Pin No.
Signal
1
VBUS
2
D–
3
D+
4
GND
5
GND
Instrument side
Mini USB connector
B type female (5 pin)
Memo