Panasonic Micro-Imagechecker AX40 User manual

AX40
2009.3 panasonic-denko.co.jp/ac/e
ARCT1F462E
MACHINE VISION SYSTEM
Read this with
User ’ s Manual
(Color Extraction)
User ’ s Manual(Hardware, Operations)
Panasonic Electric Works
MICRO-IMAGECHECKER

Before Reading This Manual
Thank you for purchasing the MICRO-IMAGECHECKER AX40.
In this manual, information on the hardware (installation, wiring, etc.) and the software (functions, setting
procedures, etc.) is described. Read this User’s Manual carefully before you start using the machine.
Refer to the separate documentation provided for this machine, Use’s Manual (Color Extraction), for details
of color extraction.
Safety Precautions
To ensure that you use this machine correctly, read this User’s Manual thoroughly before using the
machine. Make sure that you fully understand the machine and information on safe.
Conventions used in the Safety Precautions
Symbols:
The following symbols used in Safety Precautions.
Symbol Explanation:
WARNING
This indicates the existence of a hazard that could result in death of or serious damage to the operator, if
the safety instruction is not observed.
CAUTION
This indicates the existence of a hazard that could result in serious bodily injury or property damage, if
the safety instruction is not observed.
WARNING
• Use the product within its specified ratings and environmental conditions. Failure to do so might result
in abnormal heat and smoke coming from the product.
• Do not use the product in the environment where combustible gas presents. This might cause
explosion.
• Do not throw the product into fire. This might cause the batteries and electronic parts in the product to
explode.
CAUTION
• To prevent abnormal heat and smoke coming from the product, do not make the product operate up
to the limits of guaranteed features and performance.
• Never attempt to disassemble or alter the product. Failure to do so might result in abnormal heat and
smoke coming from the product.
• Surely connect the wires and connectors. Failure to do so might result in abnormal heat and smoke
coming from the product.
• Do not touch the terminals while the power is ON. This might result in an electric shock.
• Do not install (connect or disconnect) the product while the power is ON. This might result in an
electric shock.
• Do not allow liquid, combustible materials or metallic objects to come into the product. Failure to do
so might result in abnormal heat and smoke coming from the product.

i
Table of Contents
PRECAUTIONS BEFORE USING AX40 ··········· v
1 Names and Functions of Parts ···1
1.1 About the AX40················································2
1.2 Random Color Camera ····································3
1.3 Camera Cable ··················································4
1.4 Keypad ·····························································5
1.5 VGA Monitor·····················································6
2 Installation and Wiring ················7
2.1 Connecting Peripherals····································8
2.2 Installation Environment and Mounting Space 9
2.2.1 Installation Environment······························9
2.2.2 Mounting the AX40 ···································11
2.3 VGA Monitor Installation Environment·········· 12
2.3.1 Installation Environment····························12
2.3.2 VGA Monitor Installation ···························13
2.3.3 VGA Monitor: Power Wiring ······················14
2.4 Installing the Camera, the Lens and the Adapter
Ring······························································ 15
2.4.1 View Range Table- Selection of Lens and
Adapter Ring, and Installation Position of a
Camera ·····················································15
2.4.2 Notes on Mounting a Camera ···················16
3 Input and Output Interface Ports
·····················································17
3.1 Parallel Port··················································· 18
3.1.1 Wiring To the Terminal Blocks ··················18
3.1.2 Pin Assignments ·······································19
3.1.3 Notes on Power Supply and Wiring ··········20
3.1.4 About Grounding·······································21
3.1.5 Arrangements of the Output Terminals and
Output Circuit ············································22
3.1.6 Arrangements of Input Terminals and Input
Circuit························································24
3.1.7 FLASH Output Synchronizing Signal ········26
3.2 About RS-232C Port ····································· 27
3.2.1 Port Used for RS232C Communication ····27
3.2.2 Connections to the External Device ··········28
3.3 About Ethernet Port······································· 32
3.3.1 Pin Assignments of TOOL Ports ···············32
3.3.2 Vision AXTOOL·········································33
4 Basic Operation························· 35
4.1 About Screen Monitor ··································· 36
4.2 RUN and SETUP Modes······························· 37
4.2.1 About SETUP and RUN Modes ················37
4.2.2 Switching between RUN Mode and SETUP
Mode ·························································37
4.3 How to Preprocess and Display Images······· 38
4.4 Basic Operation Using the Keypad ··············· 39
4.4.1 Selecting an Option from the Menu···········39
4.4.2 Setting (Inputting) Values··························39
4.4.3 Setting the Inspection Area ·······················40
4.5 Selecting the Display Image (Switching the
Display Images) ··········································· 44
4.5.1 Type of the displayed images ···················44
4.5.2 Selecting a Display Image with the Display
Image Feature···········································45
4.5.3 Selecting a Display Color with the Display
Color Feature ············································46
5 Procedure for Setting Inspection
Conditions·································· 47
5.1 Setting Inspection Conditions························ 48
5.2 Setting the Number of Cameras Used ·········· 49
5.3 Memory Settings ··········································· 50
5.4 Adjusting White Balance ······························· 53
5.5 Selecting a Product Type ······························ 54
5.5.1 Selecting a Product Type ··························54
5.5.2 Copying an Existing Product Type ············55
5.5.3 Deleting a Product Type····························56
5.5.4 Deleting All Product Types························56
5.5.5 Entering a Product Type Title····················57
5.5.6 Setting Shutter Speed ·······························58
5.6 Importing Images into a Memory ·················· 59
5.7 Saving Setting and Revised Data in the AX4060

ii
5.8 Starting Inspection ········································ 61
6 Setting Checkers ······················· 63
6.1 What Is Checker?·········································· 64
6.2 Making the Basic Settings of a Checker ······· 66
6.2.1 Basic Flow of Checker Setting ················· 66
6.2.2 Selecting a Checker Number and a Checker
Type·························································· 67
6.2.3 Selecting a Memory·································· 69
6.2.4 Setting a Binary Level ······························ 70
6.2.5 Setting a (Mask) area ······························· 72
6.3 Convenient Functions for Setting a Checker 75
6.3.1 Change the Menu Window to Translucent
Color························································· 75
6.3.2 Temporarily Hiding the Menu Window ····· 76
6.4 Binary Window ·············································· 77
6.5 Gray Window················································· 80
6.6 Binary Edge··················································· 82
6.7 Gray Edge ····················································· 86
6.8 Feature Extraction········································· 93
6.9 Smart Matching ··········································· 100
6.10 Contour Matching········································ 110
6.11 What is Position Adjustment? ····················· 115
6.11.1 Overview ················································ 115
6.11.2 What To Do If Each Checker Refers to
Position Adjustment Amount ·················· 116
6.12 Position Adjustment (Binary Edge) ············· 117
6.13 Position Adjustment (Gray Edge)················ 120
6.14 Position Adjustment (Feature Extraction) ··· 123
6.15 Position Adjustment (Matching) ·················· 126
6.16 What is Rotation Adjustment?····················· 129
6.16.1 Overview ················································ 129
6.16.2 How Checkers Refer to Adjustment Amount
································································ 130
6.17 Rotation Adjustment (Binary Edge Horizontal,
Binary Edge Vertical)································· 131
6.18 Rotation Adjustment (Gray Edge Horiz., Gray
Edge Vert.)················································· 133
6.19 Rotation Adjustment (Feature Extraction)··· 135
6.20 Position Adjustment (Matching) ·················· 137
6.21 Rotation Adjustment (Contour)···················· 139
7 Calculation, Analysis and Output
of Inspection Results·············· 141
7.1 Overview······················································ 142
7.1.1 Calculation and Analysis ························ 142
7.1.2 Outputting Data to External Device ········ 142
7.2 Numeric Calculation (CA01 - CA99) ··········· 143
7.2.1 Main Functions ······································· 143
7.2.2 Quotable Data and Calculation Functions144
7.2.3 Creating an Arithmetic Expression ········· 147
7.2.4 Specifying the Judge. Max./Min. values-
Judging the Calculation Results ············· 149
7.2.5 Copying an arithmetic expression ·········· 150
7.2.6 Deleting an arithmetic expression ·········· 150
7.2.7 Projection Distance································· 151
7.2.8 Conversion to Actual Size Value: Conversion
Data ························································ 152
7.2.9 Restrictions on Calculation····················· 156
7.2.10 Error Message Displayed When You Set
Numeric Calculation ······························· 157
7.3 Judgement Output (JD01 - JD99) ··············· 158
7.3.1 Main Functions ······································· 158
7.3.2 Quotable Data and Operators ················ 158
7.3.3 Creating a Judgement Program Expression
································································ 160
7.3.4 Outputting Judgement Results to the External
Device····················································· 161
7.3.5 Registering Total Judgments·················· 162
7.3.6 Registering a Conditional Expression of Save
Image······················································ 163
7.3.7 Restrictions on Judgement····················· 164
7.3.8 Error Messages Appears When You Set
Judgement Output ·································· 164
7.4 Statistics (QS01 - QS16)····························· 165
7.4.1 Main Functions ······································· 165
7.4.2 Quotable Data ········································ 165
7.4.3 Statistics Items ······································· 166
7.4.4 Quoting Statistic Object Data ················· 166
7.4.5 Deleting a Quoted Item··························· 167
7.4.6 Resetting the Count Results··················· 168
7.5 Data Monitor················································ 169
7.5.1 Main Functions ······································· 169
7.5.2 Quotable Data ········································ 170
7.5.3 Quoting the Data to the Data Monitor····· 171
7.5.4 Registering the Fixed Name (Title) to the Cell
································································ 173
7.5.5 Outputting and Displaying Procedure····· 173
7.5.6 Changing Max. / Min Values in RUN Mode
································································ 175

iii
8 TOOL·········································177
8.1 TOOL ·························································· 178
8.2 Drawing an Image on the Monitor Screen:
Marker Function········································· 179
8.2.1 Creating a Marker ···································179
8.2.2 Copying an Existing Marker ····················180
8.2.3 Deleting a Marker····································181
8.3 Reference Point ·········································· 182
8.4 Group Move ················································ 183
9 Environment Settings··············185
9.1 What Are Environment Settings?················ 186
9.2 Initial Settings·············································· 189
9.2.1 A list of Initial Setting Menu·····················189
9.2.2 Protect the Setting Data by Password ····190
9.3 Display Setting in RUN mode ····················· 192
9.3.1 Selecting a Display Image ······················192
9.3.2 Displaying Data Monitor, Checker Area,
Marker and Reference Coordinates········196
9.4 Saving Images ············································ 197
9.4.1 What is Saved Image?····························197
9.4.2 Saving Images by Using the Keypad ······198
9.4.3 Saving Images per Inspection·················199
9.4.4 Saving the Images Judged NG during
Inspection················································200
9.4.5 Selecting Action When Saved Images
Reached 16 sets ·····································201
9.4.6 Perform Inspection While Only the Saved
Image Is Displayd (Display Save Image) 202
9.4.7 Testing by Using a Saved Image ············203
9.4.8 Outputting a Saved Image to a CF Card
(Backing up to a CF Card) ······················204
9.4.9 Removing a Saved Image·······················204
9.5 Re-Registering the Template ······················ 205
9.5.1 Re-registering Mode and Diplay Options 205
9.5.2 Setting Procedure ···································205
9.6 Initializing Environment Settings ················· 206
10 Parallel Communication ··········207
10.1 Communications via Parallel Port··············· 208
10.1.1 Input from the External Device················208
10.1.2 The Data Output from the AX40 ·············208
10.2 Input/Output Timing ···································· 209
10.2.1 Starting Inspection - One Time ···············209
10.2.2 Inspection Start-Repeat ··························210
10.2.3 Switching the Product Types···················211
10.2.4 Switching the Display Images ·················213
10.2.5 Re-registering the Template····················214
11 RS232C Communication········· 217
11.1 Overview ····················································· 218
11.2 Serial (Per Start)/Serial (Async.)················· 219
11.2.1 Slecting Outputting Procedure/Data········219
11.2.2 Format of the Commands from the External
Device ·····················································219
11.2.3 Setting COM Port ····································220
11.2.4 Output Data Format ································221
11.2.5 A List of Commands································222
11.2.6 Details of Commands······························223
11.3 Computer Link ············································· 241
11.3.1 Overview and Communication Specifications
································································241
11.3.2 Setting a Computer Link Communication244
11.3.3 Setting Output Conditions ·······················245
11.3.4 Specifying a Parameter for COM Port·····246
12 Ethernet Communication········ 247
12.1 Overview and Ethernet outputs··················· 248
12.1.1 Overview ·················································248
12.1.2 Selecting an Output Procedure and Output
Data·························································249
12.2 Communication Methods ···························· 250
12.2.1 Communicating between the AX40 and the
Computer ················································250
12.2.2 Communicating with a Computer Using
Multiple AX40s ········································252
13 Using a CF Card ······················ 253
13.1 Saving Data in a CF Card ··························· 254
13.2 Inserting and Removing the CF Card ········· 255
13.2.1 Inserting the CF Card······························255
13.2.2 Removing the CF Card ···························255
13.3 Backing up and Restoring Setting Data and
Images ······················································· 256
13.3.1 Backing up and Restoring the Setting Data
································································256
13.3.2 Backing up and Restoring the Memory
Images ····················································258
13.3.3 Backing up and Restoring the Saved Image
································································260

iv
13.4 Copying the Screen Display························ 262
13.5 Outputting Inspection Results to a CF Card 263
13.6 Using the Folder Tree ································· 264
14 Information on AX40 and Help
Function Setting ······················ 265
14.1 Information on the AX40 ····························· 266
14.1.1 Options of the INFO. Menu ···················· 266
14.1.2 Checking Remaining Storage Capacity of
Memory··················································· 266
14.1.3 Setting Date and Time Using the Calendar
Feature ··················································· 267
14.1.4 Setting IP Address·································· 268
14.1.5 Version Information ································ 268
14.2 Setting Help················································· 269
14.2.1 Making Focal and Aperture Adjustments 269
14.2.2 Checking the Connection by Using I/O
Monitor ··················································· 270
15 Troubleshooting ······················ 271
15.1 ERROR (Error) Signal Is Output ················· 272
15.2 A Code Is Displayed in SETUP Mode ········ 274
16 Specifications and Product
Numbers ··································· 275
16.1 General Specifications ································ 276
16.2 List of Product Numbers ····························· 279
16.3 Dimensions ················································· 283
Record of Changes ·······································288

v
PRECAUTIONS BEFORE USING AX40
Installation Environment
Avoid installing the AX40 in the following locations:
• Locations with direct sunlight or environmental temperatures that exceed a range of 0 to 50 °C (a
range of 0 to 40 °C for VGA monitor).
• Locations with a relative humidity exceeding a range of 35%RH to 75%RH (a range of 20%RH to
85%RH for VGA monitor) or locations with a condensing due to a sharp temperature change.
• Locations with an atmosphere containing corrosive gases or flammable gases.
• Locations subject to the main unit to direct vibration or impact.
• Locations with a lot of fine particles, iron filings or salt.
• Locations where the device can become wet with water, oil or chemicals.
• Locations with an atmosphere likely to contain organic solvents such as benzene, paint thinner, and
alcohol as well as strongly alkaline materials such as ammonia and caustic soda.
Static Electricity
In dry environment, there is a risk of accumulation of static electricity, so when there is a need to touch
the equipment, users should always discharge the accumulated static by touching a grounded part of the
equipment first.
Cleaning
Do not use thinners or similar solvents, as they may dissolve parts of the unit and cause colors to run.
Power
Use the insulation power with the protection circuit built in. AX40 power unit is with the non-insulated
circuit, so that applying an abnormal voltage might damage the internal circuit. When using the power
without the protection circuit, supply the power via the protection device such as a fuse.
Power sequence
• Arrange the power sequence so that the AX40 power supply is turned OFF before the input/output
power supply.
• If you turn OFF the input/output power supply before the AX40 power supply, the AX40 unit will detect
an input signal level change and may not run properly.
Before Switching ON the Power
• Pay attentions to the followings when turning ON the power for the first time;
• Confirm no wiring waste or especially any conductive substance is on the printed circuit board when
setting the AX40.
• Confirm that the power wiring, input/output wiring and power voltage are correct.
• Confirm that the fixing and terminal screws are securely tightened.
Before Creating the Product Type Data
• Without fail, initialize the environmental settings before creating the product type data.

vi
General Cautions
• Use monitor, monitor cable, keypad, camera models and camera cables with serial numbers
specified by Panasonic Electric Works Co., Ltd. A breakdown, damage or destruction by using any
other than the specified will not be covered by our guarantee.
• Do not disassemble, remodel the AX40 or change its internal settings. A breakdown, damage or
destruction by disassembling, remodeling the AX40 or not following the instruction described in the
Manuals will not be covered by our guarantee.
• Do not change or set items that should not be as described in the manuals or the specifications.
Breakdown, damage or destruction resulting from changing or setting them will not be covered by our
guarantee.
• Do not connect the keypad and the PC used for restoring or backing up after completed various
settings for the AX40 in order to prevent a malfunction or an operation mistake due to noises.
• Do not perform the insulation resistance or anti-voltage test between the power and the input/output
signals or between the connector metal part and the camera case.

1
Names and Functions of Parts
Cha
p
ter 1
Chapter 1
Names and Functions of Parts

2
Names and Functions of Parts
Cha
p
ter 1
1.1 About the AX40
No. Designation Description
1 External output terminal
(16 pins)
An external output terminal. The AX40 uses a Phoenix connector (product
#: 1840502).
2 External input terminal
(15 pins)
An external input terminal. COMMON terminal is for (+/-). The AX40 uses a
Phoenix terminal block (product #: 1840528).
3 Power terminal Acceptable input voltage is 24V DC. The power terminal is located on the
input terminal block.
4 Operating LEDs Indicate the operating status of the AX40.
• POWER (green):
The green LED is lit while the AX40 is being energized.
• ERROR (red):
The red LED is lit when an error is detected.
• READY (green):
The green LED is lit when various signals including start signal can be input.
5 CF card slot Supports for a FAT16- formatted and up to 512 MB of compact flash
memory.
6 TOOL port (Ethernet
Port)
Connects to the external device via Ethernet port. Use a cross cable for the
connection.
7 KEYPAD connector Connects to the operation keypad.
8 COM1 port (RS232C
port)
Connects to an external device via the port.
9 Camera connectors Connect up to two cameras: CAMERA 1 and CAMERA 2.
10 MONITOR Connects to the VGA monitor
11 DIN rail attachment
lever (for hooking with
one-touch operation)
Offers quick and easy mounting of the device onto the DIN rail.
12 Backup battery This is a battery for retaining information about calendar in the AX40. If the
backup battery runs out, the screen monitor displays “Battery used up!””. In
such a case, replace with a new battery. Product number: AFPG804
(Effective life: About 10 years at 25°C)
Caution
Connect only the specified products to the AX40.

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1.2 Random Color Camera
No. Part name Description
1 Camera Refers to the camera body.
2 Cable connector Connects to the AX40 with a camera cable (ANMX8330**).
3 Lens When you mount the lens, if necessary, use an adapter ring for getting the
proper field of view. Refer to page 15 for selecting view range and lens.
4 Lens mount Refers to a C-mount
5 Mounting plate A plate to mount a camera. The plate insulates with the mounting surface
• Connect only the specified camera (ANMX8310) to the AX40.
• Do not touch the camera’s CCD elements or lens surface. Also, cap the camera when storing
it to prevent dust from accumulating on the CCD elements or lens surface.

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1.3 Camera Cable
No. Part name Description
1 Connector (round, female) Connects to the camera.
2 Connector (D-sub, male) Connects to the AX40.
• Use only the specified camera cable (ANMX8330**).
• Do not bend the camera cable forcibly or apply load to the connector joints.

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1.4 Keypad
No. Description Details
A key • Starts an inspection. Performs a test in SETUP mode. Executes an
inspection in RUN mode.
B key Displays a sub-menu for each menu. Press and hold down this key for
more than one second to save the screen copy on the CF card.
1 A, B, C keys
C key Switches between SETUP mode and RUN mode. Goes back to the
previous hierarchy.
Cursor
Operation
Moves the cursor in the up to 8 directions.
Use this lever to select the menu and move the start and end points.
2 ENTER key
Confirmation
Operation
Executes (or Determines) the selected option.
3 Connector Connects the keypad to the AX40.
Cursor Operation and Determination Operation with the Cursor Lever
Cursor operation Determination (ENTER) operation
If you try to move the cursor while pressing and holding down the ENTER key, the selected option may
be determined. Release and move the ENTER key when you move the cursor.
Connect only the specified keypad (ANM852**) to the AX40.

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1.5 VGA Monitor
No. Part name Description
1 Power connector Acceptable input voltage: 24V DC
2 RGB input
connector
A connector for RGB input. Connects to the
monitor with the VGA monitor cable -ANMX8331*.
(Connector: Mini D-sub, 15 pins, female)
• 1 - R: Red image signal
• 2 - G: Green image signal
• 3 - B: Blue image signal
• 5, 6, 7, 8, and 10 - GND: Signal ground
• 13 - HS: Horizontal synchronizing signal
• 14 - VS: Vertical synchronizing signal.
3 Adjustment
volume
The following adjustments are available
BRIGHT Brightness Adjusts the brightness. (Brightness: about 20 to
100%)
V-POS. Vertical
Position
Adjusts the screen vertical position (per 16 lines).
H-POS. Horizontal
Position
Adjusts the screen horizontal position (per 16 pixels).
PHASE Phase Adjusts the screen flickering.
CONT. Contrast Adjusts the contrast.
4 Keypad connector Connects the keypad (ANM852**). However, the Keypad connector is available
only if the monitor is connected to the AX40 with the keypad cable.
5 Keypad cable
connector
Connects the keypad link cable. (Connect one end of the cable to the AX40). Use
the connector in order to connect the keypad to the monitor front.
Check for proper connections before turning the power on.

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Chapter 2
Installation and Wiring

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2.1 Connecting Peripherals
Be sure to turn the power off before connecting the peripherals to the AX40.
• Connect only the specified products to the AX40.
• Be sure to turn the power off before connecting the peripherals to the AX40. Failure to do so
may damage to the device.
• Arrange the wiring not to apply load on the cable connector joints; otherwise, the
disconnection may be occurred.
• When unplugging the cable from the connector, be sure to hold it by its plug and avoid
exerting unnecessary force on the cable. Also, do not touch the terminals inside the
connectors. Take care not to allow water and dust to come into the connectors.

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2.2 Installation Environment and Mounting Space
2.2.1 Installation Environment
Avoid Installing the Equipment in the Following Types of Locations:
• Locations with environmental temperature that exceed a range of 0 to 50 °C.
• Locations with a relative humidity exceeding a range of 35%RH to 75%RH.
• Locations with a condensing due to a sharp temperature change.
• Locations with an atmosphere containing corrosive gases or flammable gases.
• Locations with a lot of fine particles, iron filings or salt.
• Locations with an atmosphere likely to contain organic solvents (such as benzene, paint thinner), and
alcohol as well as strongly alkaline materials (such as ammonia and caustic soda).
• Locations subject to direct vibration or impact.
• Locations subject to direct sunlight.
• Locations where the device can become wet with water, oil or chemicals.
• Locations where the device is applied with excessive load.
Noise Countermeasure
• Keep the AX40 away from the devices that generate large switching surges, such as high-voltage
wires, high-voltage devices, power-driven lines and power-driven machinery as much as possible.
• Keep the AX40 away from the devices with the transmission system such as radio equipment as
much as possible.
Countermeasure for Heat Radiation
• Do not mount the device on the object with strong heat sources such as the heater, transformer and
high-capacity resistor.
• When installing, set the device in the following direction for heat radiation.

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About Mounting Space
• Keep 50 mm or more space from other equipment to facilitate the unit exchange and cable wiring.
• When installing a device such as a control board in front of the AX40, keep 100mm or more space
between them in order to prevent an impact from noise radiation or heating.
• Always keep 100mm or more space from the AX40 to facilitate a keypad connection or a wiring.

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2.2.2 Mounting the AX40
There are the two ways to mount the AX40, by using screws or by hooking on the DIN rail.
Mounting the AX40 on the DIN rail
The AX40 can be mounted on or removed from a 35 mm wide DIN rail (DIN EN50022) with a single easy
operation.
To mount the AX40 on the DIN rail:
1. Hook the AX40 onto the DIN rail.
2. Press the lower part of the device to
fix it into position.
To remove the AX40 from the DIN
rail:
1. Insert the slot-head driver into the
mounting lever.
2. Press the mounting lever
downward.
3. Lift and detach the AX40.
Mounting the AX40 to the VGA Monitor

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2.3 VGA Monitor Installation Environment
2.3.1 Installation Environment
Avoid installing the VGA Monitor in the Following Types of Locations:
• Locations with environmental temperatures that exceed a range of 0 to 40 °C.
• Locations with a relative humidity exceeding a range of 20%RH to 85%RH.
• Locations with a condensing due to a sharp temperature change.
• Locations with an atmosphere containing corrosive gases or flammable gases.
• Locations with a lot of dust, lamp soot and conductive dust.
• Locations with a lot of fine particles, iron filings or salt.
• Locations with an atmosphere likely to contain organic solvents such as benzene, paint thinner, and
alcohol as well as strongly alkaline materials such as ammonia and caustic soda.
• Locations subject to direct vibration or impact.
• Locations subject to direct sunlight.
• Locations where the device can become wet with water, oil or chemicals.
• Locations where the device is applied with excessive load.
Noise Countermeasure
• Keep away from the devices that generate large switching surges, such as high-voltage wires,
high-voltage devices, power-driven lines and power-driven machinery as much as possible.
• Keep as far away as possible from the transmitting devices such as radio equipment.