KEYENCE LS-5000 User Manual

Instruction Manual

High-speed Laser Scan Micrometer

96M12426

LS-5000 Series

Safety Precautions

WARNING

CAUTION

This instruction manual describes the operation and function of the LS-5000 series. Read this manual carefully to ensure safe use and maximum performance from your LS-5000 series. The LS-5000 series uses a semiconductor laser as the light source. Before using the product, see “Laser Safety Precautions” on page 1 to learn the safe and correct method of using the LS-5000 series.

Symbols

The following symbols alert you to important messages. Be sure to read these messages carefully.

Failure to follow instruction may lead to injury. (electric shock, burn, etc.)

Failure to follow instructions may lead to product damage.

General Precautions

Note:

• At startup and during operation, be sure to monitor the functions and performance of the LS-5000 series.

• We recommend that you take substantial safety measures to avoid any damage in the event a problem occurs.

• Do not open or modify the LS-5000 series or use it in any way other than described in the specifications.

• When the LS-5000 series is used in combination with other instruments, functions and performance may be degraded, depending on operating conditions and the surrounding environment.

• Do not use the LS-5000 series for the purpose of protecting the human body.

This is a class A (EN55011: EMI standard) product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

Provides additional information on proper operation.

Checking the Contents of the Package

The LS-5000 series includes the following items. Be sure to check that no item is missing or damaged.

■ LS-5501 Package

• Built-in display type controller: 1

• Instruction manual: 1

• AC power cables: 2

■ LS-5001 Package

• Separate type controller: 1

• Instruction manual: 1

• Communication cable (OP-26401 + OP-96368): 1

• LS-VIEWER Software (3.5-inch FD, Instruction manual): 1

■ LS-5041/5121 Package

• Scanning head (Transmitter, receiver and mounting base): 1

• Mounting brackets: 4

• ROM board: 1

1. Two types of AC power cables are provided with the built-in display model LS-5501. One is for 125 VAC and the other is for 250 VAC. Select either according to your local power supply type.

2. The serial nos. of both units should be identical.

Warranty

Notice

See page 125.

• No part of this instruction manual may be reprinted or reproduced without the prior written permission of KEYENCE CORPORATION.

• KEYENCE assumes no responsibility for the contents of this manual. No liability is assumed for damages resulting from a program created by customers.

• The contents of this manual are subject to change without notice.

96M12426

Chapter 1 Laser Safety Precautions

Chapter 2 Before Using the LS-5000 Series

1.1 Classification .......................................................................................... 2

1.2 Warning Labels ...................................................................................... 2

1.3 Label Location ........................................................................................ 3

1.4 Safety Consideration .............................................................................3

1.5 Safety Features Provided with the LS-5000 Series ............................. 4

1.6 Preparation for Operation ..................................................................... 6

2.1 System Configuration and Connections ............................................. 8

2.1.1 System Configuration ................................................................................ 8

2.1.2 Connection Procedure .............................................................................. 9

2.2 Names and Functions of Indicators and Switches ...........................12

2.3 Part Names ........................................................................................... 13

Chapter 3 Quick Start Reference

3.1 Quick Start Reference ......................................................................... 16

3.1.1 Procedure for Starting Measurement ......................................................16

Chapter 4 Installation

4.1 Mounting the Scanning Head ............................................................. 18

4.2 Mounting the Controller ...................................................................... 19

Chapter 5 Outline of Measurements

5.1 Area/Segment/Edge .............................................................................22

5.2 Normal mode ........................................................................................22

5.2.1 DIA mode ................................................................................................ 23

5.2.2 T.EDGE (TOP EDGE) mode/B.EDGE (BOTTOM EDGE) mode ............ 23

5.2.3 SEG (m,n) mode ..................................................................................... 23

5.3 Pitch mode ............................................................................................ 24

iii

Chapter 6 Normal mode

6.1 Normal Mode Screens ......................................................................... 24

6.2 Initial Screen ......................................................................................... 27

6.3 Setting Measuring Mode ..................................................................... 28

6.4 Setting Functions ................................................................................. 29

1 [HOLD] Hold Function...................................................................... 30

2 [ZERO] Auto-zero Function ............................................................. 31

3 [SCREEN] Screen Selection Function ............................................. 32

4 Limit Setup ....................................................................................... 35

5 [CALIB] Calibration Setup ................................................................ 36

6 [PROGRAM] Program Selection Function ....................................... 38

7 Area Setup ....................................................................................... 39

8 Calculation Setup ............................................................................. 41

9 Average ........................................................................................... 44

0 Measuring Mode ..............................................................................46

A Digit Suppression Function .............................................................. 54

B Offset Function ................................................................................ 55

C Analog Output Function ...................................................................57

D I/O Slot Setup .................................................................................. 59

E Inspection ........................................................................................ 60

F One-scan Mode ............................................................................... 62

G Program Selection Method Setup .................................................... 64

H Display Unit ...................................................................................... 65

I Area Check Function ....................................................................... 66

J Initialize ............................................................................................ 67

K Mode Change .................................................................................. 68

Chapter 7 Pitch Mode

7.1 Pitch Mode Screens ............................................................................. 70

7.2 Initial Screen ......................................................................................... 71

7.3 Setting Measurement ........................................................................... 72

7.4 Setting Functions ................................................................................. 72

1 Screen Selection Function ............................................................... 73

2 Limit Setup ....................................................................................... 75

3 Program Selection Function ............................................................76

4 Setting Number of Pitches ...............................................................77

5 Average ........................................................................................... 79

6 Digit Suppressing Function .............................................................. 80

7 Measuring Mode ..............................................................................81

8 Masking ...........................................................................................84

9 Mode Change .................................................................................. 85

Chapter 8 RS-232C I/O

8.1 RS-232C Communication Protocol .................................................... 88

8.2 Remote Control Function .................................................................... 90

8.3 Command List ......................................................................................97

Chapter 9 Expansion I/O Board

9.1 Control I/O Board ...............................................................................100

9.1.1 Part Names and Pin Assignment .......................................................... 100

9.1.2 I/O Terminal Operations ........................................................................ 101

9.1.3 Specifications ........................................................................................102

Chapter 10 Display System Setup

10.1 Display System Setup .....................................................................104

10.1.1 Adjusting Backlight Intensity ...............................................................104

10.1.2 Reversing Display ............................................................................... 105

10.1.3 Adjusting Contrast .............................................................................. 106

10.1.4 Setting Backlight OFF Time ................................................................ 107

10.1.5 Adjusting Buzzer Volume.................................................................... 108

10.1.6 Numeric Keys .....................................................................................109

10.2 Display Hardware Check Function ................................................. 110

10.3 Replacing Protective Sheet ............................................................. 111

10.4 Display Panel-lock Function ...........................................................112

Appendices

Appendix A Specifications ........................................................................114

Appendix B Initial Setting .......................................................................... 116

Appendix C Troubleshooting Guide ......................................................... 118

Appendix D Error Messages ...................................................................... 120

Appendix E Minimum Input Time and Output Response Time .............. 121

Appendix F Dimensions ............................................................................122

WARRANTIES AND DISLAIMERS 125

Chapter 1

Laser Safety Precautions

1.1 Classification ........................................................................ 2

1.2 Warning Labels ..................................................................... 2

1.3 Label Location ...................................................................... 3

1.4 Safety Consideration ............................................................ 3

1.5 Safety Features Provided with the LS-5000 Series ........... 4

1.6 Preparation for Operation .................................................... 6

Chapter 1 Laser Safety Precautions

CAUTION

1.1 Classification

1.2 Warning Labels

LS-5041 LS-5121

Laser FDA (CDRH) Part 1040.10 Class II Laser Product

Class IEC60825-1 Class 2 Laser Product

■ LS-5041

Warning label/Aperture label

FDA Class II IEC Class 2

IEC (French) Classe 2 DIN Klasse 2

■ LS-5121

Warning label/Aperture label

FDA Class II IEC Class 2

AVOID EXPOSURE

LASER RADIATION IS EMITTED FROM THIS APERTURE.

CAUTION

LASER RADIATIONDO NOT STARE INTO BEAM

SEMICONDUCTOR LASER WAVELENGTH OUTPUT PULSE DURATION CLASS II LASER PRODUCT

655nm

45µW

14µs

IEC (French) Classe 2 DIN Klasse 2

1.3 Label Location

LS-5121T

SCANNING AREA

Aperture

CAUTION

■ LS-5041

■ LS-5121

Chapter 1 Laser Safety Precautions

Aperture

LS-5041T

SCANNING AREA

The IEC/DIN Warning labels are packed with the scanning head. Stick the Warning labels on the scanning head or the vicinity where the scanning head is mounted in order to be easily seen by the operators.

1.4 Safety Consideration

Use of controls or adjustments or the performance of procedures other than those specified herein may result in hazardous radiation exposure.

The LS-5041 employ a visible semiconductor laser for its light source. The beam is not harmful to the skin. The possible health hazard is in exposing the eyes to the laser beam. Damage to the eyes occur if the operator stares directly into the beam.

Chapter 1 Laser Safety Precautions

WARNING

Follow the safety precautions below to ensure operator safety:

• Operate the LS-5000 series only according to the procedures described in this instruction manual.

Otherwise, injury may occur due to exposure to the laser beam.

• Do not disassemble the scanning head.

Laser emission from the LS-5000 series is not automatically stopped if the scanning head is disassembled. If you disassemble the scanning head for inspection or repair, you may be exposed to the laser beam. If the LS-5000 series malfunctions, contact KEYENCE immediately.

• Do not look directly into the laser beam.

Looking directly into the laser beam may result in serious eye injury.

• Protective enclosure

We recommend that you install a protective enclosure around the scanning head to prevent any person from getting near the scanning head during operation.

• Protective goggles

We recommend that you wear protective goggles when using the LS-5000 series.

• You must stop all laser emissions before cleaning the laser aperture. Otherwise, you may be exposed to the laser beam.

• Be aware of the optical axis of the laser beam. If you may be exposed to a specularly-reflected or diffused laser beam, provide an enclosure with reflectivity and thermal characteristics adequate to interrupt the laser beam. Install the LS-5041 so that the optical axis of the laser beam will not be at the same height as your eyes when operating the LS-5000 series.

1.5 Safety Features Provided with the LS-5000 Series

The LS-5000 series comes with the following safety features:

• Laser emission remote control terminals

Rear of the LS-5001 Rear of the LS-5501

Laser emission remote control input terminal

Chapter 1 Laser Safety Precautions

LS-5041T

LS-5121T

• LASER ON alarm indicator

The scanning head has an LED which indicates that the laser beam is currently being emitted or is about to start.

Even when you are wearing safety goggles, you can check whether the indicator is lit or not.

Laser ON alarm indicator

• Laser beam shield

The LS-5000 series includes a laser beam shield which is to be attached to the scanning head’s transmitter. Attach this shield when your eyes may be exposed to the laser beam, for example during operation at the front of the scanning head.

■ LS-5041

Appearance with the laser beam shield attached

Appearance with the laser beam shield not attached

Laser beam shield

■ LS-5121

Appearance with the laser beam shield attached

Appearance with the laser beam shield not attached

* FDA safety standards do not require a laser beam shield to be provided with

Class II laser products. However, the shield should be used if necessary.

CAUTION

1.6 Preparation for Operation

■ Suppressing noise interference

Be sure to isolate the connection cable from high-voltage or power lines. If the connection cable is placed in the same conduit as these lines, the LS-5000 series may malfunction due to noise interference.

■ Cooling fan

Do not block the cooling fan at the bottom of the LS-5501. If the cooling fan is blocked, the LS-5501 may overheat and malfunction.

■ Operating environments

• Use the controller at an ambient temperature of 0°C to 45°C (32 to 113°F), No freezing.

• Fluctuations in the ambient temperature cause measurement errors; therefore, the ambient temperature should be kept constant. If the temperature changes by 10°C (18°F), the LS-5000 series will take approximately 60 minutes until the temperature distribution in the unit becomes even.

• Do not allow any substance which may refract the laser beam, such as water and oil, to adhere to the scanning head.

* Blow dust off the protective glass using clean air. Wipe off any remaining dust

using a soft cloth moistened with alcohol.

Note 1: Measurement conditions When the target oscillates, the measured value may fluctuate. The measurement accuracy can be improved when the number of averaging measurements is set higher.

Note 2: Target When the target shape or luster varies, a measurement error may occur. In this case, place a standard target in the measuring area and perform the calibration using the [CALIB] key.

Chapter 2

Before Using the LS-5000 Series

2.1 System Configuration and Connections ............................. 8

2.1.1 System Configuration .............................................................. 8

2.1.2 Connection Procedure ............................................................. 9

2.2 Names and Functions of Indicators and Switches .......... 12

2.3 Part Names .......................................................................... 13

Chapter 2 Before Using the LS-5000 Series

LS-5501

I/O board (LS-B11)

ROM board

LS-5041/5121

Connection cable (option) LS-C3: 3m LS-C10: 10 m LS-C50: 50 m

24 VDC

LS-5001

LS-5041/5121

Connection cable (option) LS-C3: 3m LS-C10: 10 m LS-C50: 50 m

ROM board

Expansion slots

Power supply

I/O board (LS-B11)

Personal computer

LS-VIEWER operating software for Windows 95

2.1 System Configuration and Connections

The LS-5000 series includes the display unit, controller and scanning head. This section describes the system configuration and connections of the LS-5000 series.

2.1.1 System Configuration

The LS-5000 series includes the display unit, controller and scanning head. The controller can be used separately.

The LS-5000 series also offers I/Oboard, as well as a control unit which incorporates the display unit and controller in a single body.

• Separate display type

• Built-in display type

Note: The scanning head and ROM board are calibrated as a pair. Be sure to

combine the units that have the same serial number.

CAUTION

2.1.2 Connection Procedure

Frame cover Frame cover

Screws Screws

Frame cover Frame cover

Connecting the Scanning Head

Be sure to turn the power off before connecting the scanning head.

■ Connection of ROM Board

1. Remove the frame cover.

Chapter 2 Before Using the LS-5000 Series

LS-5001

2. Insert the ROM board.

LS-5001

Note: Insert the ROM board into HEAD 1 first.

LS-5501

3. Tighten the screws.

LS-5001

4. Re-attach the frame cover.

LS-5001

LS-5501

Chapter 2 Before Using the LS-5000 Series

Transmitter Receiver

LS-C3 (3 m)

To ROM board

■ Connecting Transmitter and Receiver

1. Connect the cable between the transmitter and receiver. Use the extension cable if necessary.

Extension cable between transmitter and receiver: OP-26540 (3 m)

OP-26816 (10 m)

2. Connect the cable between the transmitter and receiver to the scanning head and ROM board. (This cable is optional.)

Connection cable LS-C3 3 m LS-C10 10 m LS-C50 50 m

Connecting I/O Board

CAUTION

Frame cover Frame cover

Screws Screws

Chapter 2 Before Using the LS-5000 Series

Be sure to turn the power off before connecting the I/O board.

1. Remove the frame cover.

LS-5501LS-5001

2. Insert the I/O board.

Note: Use the slot 1 first. When the slot 1 is used, use the slot 2.

LS-5001

3. Tighten the screws.

4. Re-attach the frame cover.

LS-5501

LS-5501LS-5001

Chapter 2 Before Using the LS-5000 Series

DISPLAY

DATA

LIMIT

SETUP

7 8 9

4 5 6

1 2 3

0 • –

ESCAPE

CANCEL

ENTER

5 • 0 0 0 0 –

ESCAPEENTER

2.2 Names and Functions of Indicators and Switches

This section describes the names and functions of the indicators and switches.

■ Names and Functions of Indicators and Switches

Display Name Description

Menu button Used to move to each function’s setup screen.

Setup/Select Used to set values or select settings. button

Select button Used to select settings or programs.

Screen Select When you press the [Screen Select] button, you button will move to the screen indicated on the button.

In the example on the left, you will move to the DISPLAY DATA screen.

Numeric keys Used to set values.

[ENTER] key: Used to accept the setting. [ESCAPE] key: Used to exit from the numeric keys screen. [CANCEL] key: Used to reset the preset value to zero. Sign key: Used to change the sign.

▲

[▲] [ ] keys: Used to move between setting items.

■ Input Procedure Using Numeric Keys

Example: Enter “-5.0000”.

2.3 Part Names

5 6

233

This section describes the part names of each model.

LS-5001 (Separate display type)

Front

1 I/O connector (LS-B11) 2 Analog output BNC connector (LS-B11) 3 Scanning head connecting port 4 DIP switch 5 Laser emission control input terminal 6 Program selection input terminal 7 Power supply terminal (24 VDC)

Chapter 2 Before Using the LS-5000 Series

LS-5501 (Built-in display type)

Front Rear

1 Measured value display and function setup/operating unit 2 I/O connector (LS-B11) 3 Analog output BNC connector (LS-B11) 4 Scanning head connecting port 5 DIP switch 6 Laser emission control input terminal 7 Program selection input terminal 8 Power supply switch 9 Power supply input 0 Fuse holder (250 V, 3.15 A) A Expansion slot 1 for I/O board B Expansion slot 2 for I/O board

Chapter 2 Before Using the LS-5000 Series

2 3

676

LS-5041/5121 (Scanning head)

1 Laser ON alarm indicator 2 Transmitter (T) 3 Laser emission aperture 4 Receiver (R) 5 Connecting cable between scanning head and controller 6 Connecting cable between transmitter and receiver 7 Scanning head mounting frame

Chapter 3

Quick Start Reference

3.1 Quick Start Reference ........................................................ 16

3.1.1 Procedure for Starting Measurement.....................................16

Chapter 3 Quick Start Reference

3.1 Quick Start Reference

This section describes the procedures for starting measurement for trial operation.

3.1.1 Procedure for Starting Measurement

Connect the controller and scanning head.

▲

Turn the power on.

▲

Align the optical axis of the transmitter and receiver.

▲

The 5001 series starts laser emission in approximately 5 seconds, at which time the measurement begins.

▲

Place a target in the measuring area.

▲

The measured value is soon displayed.

For information on the connection procedure, see p. 8.

• When the transmitter and receiver are fixed to the scanning head mounting frame, optical axis alignment is not necessary.

• For information on the scanning head mounting allowance, see p. 18.

For information on checking the optical axis, see p. 60 and 61.

For information on the measuring area, see p. 115.

The factory setting for the number of averaging measurements is 768 for DIA mode.

Before changing the measuring mode or the number of averaging measurements, read this instruction manual thoroughly for the correct settings. For setting items, see the table of contents.

The following is reference page numbers for typical operations.

• Changing the DIA mode to EDGE mode ............................................... p.39, 40

• Changing the number of averaging measurements ............................... p.44, 45

• Changing the measuring mode ........................................................... p.46 to 51

• Simultaneous measurement ........................................................................p.32

• (X + Y)/2 measurement using two scanning heads ............................... p.41, 42

Chapter 4

Installation

4.1 Mounting the Scanning Head ............................................18

4.2 Mounting the Controller ..................................................... 19

Chapter 4 Installation

Transmitter Receiver

Within ±1 mm

Transmitter Receiver

Within ±1 mm

Receiver

Within ±0.25° Within ±0.25°

Transmitter

Receiver

Transmitter

Receiver

4.1 Mounting the Scanning Head

The LS-5000 series comes with the transmitter and receiver fixed to the scanning head mounting frame. To use the LS-5000 series with the transmitter and receiver removed from the mounting frame, mount the scanning head so that the following specifications are met. This will eliminate measurement errors caused by optical axis misalignment.

Allowance for Mounting the Scanning Head

■ Horizontal deviation of transmitter and receiver positions

■ Inclination of transmitter and receiver

* Values in parentheses are for the LS-5121.

Note: For information on the optical axis checking function, see “Head Inspection” on p. 60.

4.2 Mounting the Controller

DIN rail

LS-5121T

SCANNING AREA

LS-5121R

SCANNING AREA

This section describes how to mount the controller (LS-5001).

Mounting the LS-5001

The LS-5001 can be mounted to a DIN rail. Hook the upper claw first, and then press the controller against the DIN rail until it clicks.

Chapter 4 Installation

Mounting the Scanning Head Front Protection Cover (For LS-5121)

Application example of front protection cover

Transmitter

The LS-5121 transmitter and receiver come with a protection cover for the scanning head. Mount the cover as shown in order to prevent the front glass of the scanning head from being scratched or broken.

Receiver

Chapter 4 Installation

Chapter 5

Outline of Measurements

5.1 Area/Segment/Edge ............................................................ 22

5.2 Normal Mode ....................................................................... 22

5.2.1 DIA Mode ............................................................................... 23

5.2.2 T.EDGE (TOP EDGE) Mode /

B.EDGE (BOTTOM EDGE) Mode ......................................... 23

5.2.3 SEG (m,n) Mode .................................................................... 23

5.3 Pitch Mode ........................................................................... 24

Chapter 5 Outline of Measurements

Edge 0 Edge 1 Edge 2

Edge 3 Edge 4

Edge 5 (n-1) Edge 6 (n)

Photodiode for synchronization

Laser scanning direction

Target

Transmitter Receiver

Photodiode for synchronization

Transmitter Receiver

Roller

Rotating

This width can be measured when SEG(m,n) is set to (0,2) in Normal mode.

5.1 Area/Segment/Edge

When a target is placed in the measuring area, there are areas where the laser beam is received (laser beam enters the receiver), and where the laser beam is interrupted by the target (shadow of the target is projected on the receiver). The border between the light and dark areas is called “EDGE”. Each section divided by the edge is called a “SEGMENT”. The measurement "AREA" is determined by two edges and includes all "SEGMENTS" between these two edges.

* The edge number is counted in the laser scanning direction starting at T.EDGE

(top edge).

5.2 Normal Mode

Note: EDGE 0

The position of the photodiode for synchronization is called “EDGE 0”. EDGE 0 can be used as a reference point during roller oscillation measurement or sheet edge control. (No reference edge is required.)

Example: Roller oscillation measurement

➮

For the setting procedure, see p. 39.

The LS-5000 series has two measuring modes; NORMAL and PITCH. NORMAL mode provides four types of measurement3: “DIA”, “T.EDGE (Top Edge)”, “B.EDGE (Bottom Edge)” and “SEG(m,n)”. The function of each mode is described below. Select the mode that suits your measurement condition.

DIA mode

Measurement of outer diameter of rod or electric wire

T.EDGE/B.EDGE modes

Measurement of gap between rollers or position of target edge

SEG(m,n) mode

Setting the measurement position to measure inner diameter using a bearing

5.2.1 DIA Mode

Photodiode for synchronization

Laser scanning direction

Target

Measured width

Transmitter Receiver

Photodiode for synchronization

Target

Measured width

Transmitter Receiver

Photodiode for synchronization

Target

The T.EDGE mode measures this width.

The B.EDGE mode measures this width.

Transmitter Receiver

Photodiode for synchronization

Target

Both the T.EDGE and B.EDGE modes measure this width.

Transmitter Receiver

Photodiode for synchronization

Target

This width is measured when SEG(3,4) is set.

Transmitter Receiver

0 1 2 3

5 6

Chapter 5 Outline of Measurements

Example: Outer diameter measurement using a rod or transparent object

The width between the lower edge of the first light segment and the top edge of the last light segment is measured.

• When one target is measured

• When several targets are measured

5.2.2 T.EDGE (TOP EDGE) Mode / B.EDGE (BOTTOM EDGE) Mode

Example: Measurement of a gap between rollers

T.EDGE: Measures the width of the first light segment. B.EDGE: Measures the width of the last light segment.

5.2.3 SEG (m,n) Mode

Example: Inner diameter measurement using a bearing

When two edges are specified, the width between these edges is measured.

* (m,n) indicates any number between 0 and 254. “m” should be smaller than “n”.

Note: DIA mode

Since DIA mode is basically intended for outer diameter measurement of a rod, transparent tube or other round surface, the measurement error due to the round surface is calibrated. To perform outer diameter measurement of a round target, select DIA mode.

Chapter 5 Outline of Measurements

LASER ON DISPLAY DATA PITCH P. 1

HEAD1OKMax

Min

0.5010

0.4990

HEAD2OKMax

Min

0.6010

0.5990

HEAD3OKMax

Min

0.7020

0.6980

HEAD4OKMax

Min

0.8020

0.7980

SCREEN

DISPLAY

DATA

LIMIT

SETUP

PROGRAM OPTIONS

DISPLAY

DATA

Pitch

Optical axis

5.3 Pitch Mode

➮

For the setting procedure, see p. 72.

Pitch mode enables pitch measurement using connector pins or IC leads.

This mode measures each center-to-center pitch, and displays the maximum and minimum values.

Note 1: When Pitch mode is selected, only one measurement can be performed with one scanning head.

Note 2: When Pitch mode is selected, the comparator output is activated as shown below: HI3 = Alarm output HI2 = Disabled HI1 = Output when the measured value exceeds the upper/lower limit. GO = Output when the measured value is within the upper/lower limit. LO1: Disabled LO2: Disabled LO3: Disabled

The analog output and RS-232C output are activated as shown below. Analog output: Held at +10V. RS-232C output: Output according to the command.

➮

See p. 97.

+ 102 hidden pages