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M3LU2
Instruction Manual
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Operating Manual
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M-system M3LU2 Operating Manual

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Space-saving Signal Conditioners M3-UNIT Series
UNIVERSAL TRANSMITTER
(field- and PC-configurable)
Model: M3LU2
OPERATING MANUAL
1M3LU2 OPERATING MANUAL EM-2653-B Rev.0
CONTENTS
1. INTRODUCTION .....................................................................................4
2. SAFETY PRECAUTIONS (Be sure to observe.).....................................5
3. POINTS OF CAUTION ...........................................................................7
4. FEATURES AND PREPARATION PROCEDURE OF M3LU2 ..............9
5. COMPONENT IDENTIFICATION .........................................................10
5.1 FRONT AND SIDE VIEWS ................................................................................................. 10
5.1.1 STATUS INDICATOR LED ....................................................................................... 11
5.2 INTERNAL VIEW ................................................................................................................13
6. HOW TO OPEN THE COVER ..............................................................14
7. DIP SWITCH CONFIGURATION ..........................................................15
7.1 DIFFERENCE BETWEEN DIP SW CONFIGURATION AND PC CONFIGURATION ......... 15
7.2 DIP SWITCH SELECTION PER I/O SPECIFICATION AND FUNCTION ............................ 15
7.2.1 CONFIGURATION MODE ....................................................................................... 16
7.2.2 INPUT TYPE (JP2) .................................................................................................. 16
7.2.3 INPUT (DIP SWITCHES) ........................................................................................ 16
7.2.4 OUTPUT TYPE .......................................................................................................20
7.2.5 FRONT CONTROL BUTTON LOCK .......................................................................20
8. WIRING ................................................................................................. 21
8.4.1 WIRING INPUT.......................................................................................................24
8.4.2 WIRING OUTPUT...................................................................................................26
8.4.3 WIRING POWER ....................................................................................................26
2M3LU2 OPERATING MANUAL EM-2653-B Rev.0
9. INSTALLATION ....................................................................................27
10. CALIBRATION ....................................................................................28
10.2.1 OUTLINE OF I/O RANGING .................................................................................29
10.2.2 MAXIMUM RANGE, MINIMUM SPAN AND DEFAULT VALUE OF INPUT ...........31
10.2.3 MAXIMUM RANGE, MINIMUM SPAN AND DEFAULT VALUE OF OUTPUT .......32
10.2.4 OPERATION PROCEDURE OF I/O RANGING....................................................33
10.3.1 OUTLINE OF FINE ADJUSTMENT ......................................................................36
10.3.2 OPERATION PROCEDURE OF FINE ADJUSTMENT .........................................37
11. CHECKING, MAINTENANCE, INITIALIZATION OF PARAMETERS .39
12. APPENDICES ..................................................................................... 40
12.1.1 GENERAL SPECIFICATIONS ...............................................................................40
12.1.2 INPUT SPECIFICATIONS .....................................................................................40
12.1.3 OUTPUT SPECIFICATIONS .................................................................................41
12.1.4 INSTALLATION ......................................................................................................41
12.1.5 PERFORMANCE ..................................................................................................41
12.1.6 STANDARDS & APPROVALS ...............................................................................42
12.1.7 I/O TYPE, MAXIMUM RANGE & ACCURACY ......................................................42
12.1.8 CALCULATION EXAMPLES OF OVERALL ACCURACY .....................................44
3M3LU2 OPERATING MANUAL EM-2653-B Rev.0

1. INTRODUCTION

Thank you for your choosing M-System. Read this manual carefully to ensure that you use the product correctly and safely.

1.1 PACKAGE

Check contents of the package you received as outlined below.
•Signal conditioner
•Accessories
I/O range and tag name label sheet Instruction manual CJC sensor
(mounted on a Euro type connector terminal block)
*1 Ordering Information Sheet is included when input or output is specied in ordering.
4M3LU2 OPERATING MANUAL EM-2653-B Rev.0

2. SAFETY PRECAUTIONS (Be sure to observe.)

The following signs are used in this manual to provide precautions required to ensure safe usage of the unit. Please under­stand these signs and graphic symbols, read the manual carefully and observe the description.
The following signs show seriousness of safety hazard or damage occurred when used wrongly with the signs ignored.
Indicates a potentially hazardous situation which, if not avoided, may result in serious injury or death.
Indicates a potentially hazardous situation which, if not avoided, may result in injury or in property damage.
Indicates prohibitions. Indicates mandatory cautions. Indicates cautions.
PROHIBITION
WET HANDS
Make sure for safety that only qualied personnel perform the wiring.
• Failure to do so may result in a re, electric shock or injury.
Do not touch the terminals while the power is on.
•Doing so may result in electric shock.
Check the connection diagram carefully before wire connection.
• Failure to do so may result in malfunction, a re or electric shock.
Tighten the terminal screws of the Euro type con­nector terminal blocks with a specied torque.
• Excessive fastening may result in damage of the screws and loose screws may occasionally result in ignition.
Do not operate buttons with a wet hand or nger.
•Doing so may result in electric shock.
Do not splash water on the unit.
• Doing so may result in a re, electric shock or injury.
Provide safety measures outside of the unit to ensure safety in the whole system if an abnormal­ity occurs due to malfunction of the unit or another external factor affecting the unit’s operation.
Stop using the unit immediately if smokes, unusual smell or abnormal noises come(s) from it.
• Using the unit continuously may result in a re or electric shock.
Stop using the unit if it is dropped or damaged.
• Using the unit continuously may result in a re or electric shock.
Do not throw the unit into the re.
• Doing so may result in rupture of the electronic component.
5M3LU2 OPERATING MANUAL EM-2653-B Rev.0
Never discompose or remodel the unit.
• Doing so may result in electric shock, malfunc­tion or injury.
Do not press buttons with a pointed object.
•Doing so may result in malfunction of the unit.
PROHIBITION TO CONTACT
Do not connect or remove the unit while its power is on.
• Doing so may result in, electric shock, malfunc­tion or injury.
Do not allow ne shavings or wire scraps to enter the unit in machining screws or wiring.
•Doing so may result in malfunction of the unit.
Do not open the housing cover while the power or the input is applied.
• Doing so may result in electric shock, malfunc­tion or injury.
Do not touch the printed circuit board or the elec­tronic components in opening the cover.
•Doing so may result in malfunction of the unit.
Do not connect other cables to the COMM (con­gurator jack) port than the dedicated one.
•Doing so may result in malfunction of the unit.
Use a minus screwdriver and tweezers in setting the switches.
• Failure to do so may result in malfunction of the unit.
Do not pull the wires to separate the Euro type connector terminal blocks from the body.
• Doing so may result in damage of the unit or injury.
Do not use the unit with the cover open.
•Doing so may result in malfunction of the unit.
Do not pull the wires connecting to the unit.
• Doing so may result in electric shock, damage
of the unit or injury.
Do not use the unit in the atmosphere where com­bustible gas is present.
• Doing so may result in inammation, ignition or
smoke.
Do not cover the ventilation slits with cables, etc.
•Doing so may result in malfunction or heating.
6M3LU2 OPERATING MANUAL EM-2653-B Rev.0

3. POINTS OF CAUTION

3.1 BEFORE USE ....

The unit is for use in general industrial environments, therefore may not be suitable for applications which require higher level of safety (e.g. safety or accident prevention systems) or of reliability (e.g. vehicle control or combustion control sys­tems). For safety, installation and maintenance of this unit must be conducted by qualied personnel.
If the unit is not used in a manner not specied by M-System, the protection provided by the equipment may be impaired.

3.2 CONFORMITY WITH EU DIRECTIVES

This product conforms to the following Low Voltage and EMC Directives.
Electromagnetic Compatibility (EMC) Directive (2004/108/EC) EMI EN 61000-6-4: 2007/A1: 2011 EMS EN 61000-6-2: 2005 Low Voltage Directive (2006/95/EC) EN 61010-1: 2010 Installation Category II Pollution Degree 2 Input or output to power: Reinforced insulation (300 V) Input to output: Basic insulation (300 V)
•This equipment is suitable for Pollution Degree 2 and Installation Category II. Reinforced insulation (signal input or output to power input: 300 V) and basic insulation (signal input to output: 300 V) are maintained. Prior to installation, check that the insulation class of this unit satises the system requirements.
•Altitude up to 2000 meters.
•The equipment must be mounted inside a panel.
•The actual installation environments such as panel congurations, connected devices, connected wires, may affect the
protection level of this unit when it is integrated in a panel system. The user may have to review the CE requirements in regard to the whole system and employ additional protective measures to ensure the CE conformity.
This product conforms to the EMC Directive for electrical and electronic apparatus intended for use in industrial environ­ments. If it is used in the residential environments, it may cause radio interference, and the user is requested to take appropriate measures.

3.3 ENVIRONMENT

Install the unit within the installation specications.
•Indoors use
•Environmental temperature must be within -25 to +60°C (-13 to 140°F) with relative humidity within 30 to 95% RH without
condensing.
•Altitude up to 2000 meters.
•Provide sufficient space around the unit for heat dissipation.
•Install the unit in a well-ventilated place in order to prevent internal temperature rise.
•Refer to “Clustered mounting” to install several units. In mounting the unit with other equipments side by side, provide
sufficient space between them, according to the dimensions in the clustered mounting.
•Do not use the unit under the following environments:
– Where the unit is exposed to direct sunlight, rain or wind. (The unit is not designed for outdoor use.) – Where condensation may occur due to extreme temperature changes. – Where corrosive or ammable gas is present.
7M3LU2 OPERATING MANUAL EM-2653-B Rev.0
– Where heavy dust, iron powder or salt is present in the air. – Where organic solvent such like benzine, thinner, and alcohol, or strong alkaline materials such like ammonia and
caustic soda may attach to the unit, or where such materials are present in the air. – Where the unit is subject to continuous vibration or physical impact. – Where there are high-voltage lines, high-voltage equipments, power lines, power equipments, equipments with trans-
mission unit such like a ham radio equipment, or equipments generating large switching surges around the unit.

3.4 WIRING

•In order to prevent potential electric shock, wire the unit after turning off the power supply and making sure that the power is not supplied to the cable.
•Be sure to conrm the name and polarity of each terminal before wiring to the Euro type connector terminal blocks.
•Do not connect anything to unused terminals.

3.5 HANDLING CAUTIONS

•The unit is designed to function as soon as power is supplied, however, a warm up for 10 minutes is required for satisfy­ing complete performance described in the data sheet.
•Use the unit within the noted supply power voltage and rated load.
•The last measured values are held in mode transition. Take this into consideration when conguring the control system.
•Clean the surface of the unit with wet soft cloth. Do not use organic solvent such like benzine, thinner and alcohol. Doing
so may result in deformation or discoloration of the unit.
•When abnormality is found such like smokes, unusual smell and abnormal noises coming from the unit, immediately cut the power supply and stop using it.
8M3LU2 OPERATING MANUAL EM-2653-B Rev.0

4. FEATURES AND PREPARATION PROCEDURE OF M3LU2

4.1 FEATURES OF M3LU2

The M3LU2 is a eld congurable signal transmitter using a simulator and an indicator, without a PC or a dedicated setting unit. For instance, select an input type and range with the DIP switches on the unit to set input. Then apply a desired minimum or maximum input from the simulator and press a front button to memorize the value as minimum or maximum value. Easy and reasonable M-System’s one-step calibration (hereafter called ‘One-Step Cal’) realizes automatic I/O ranging and cali­bration only by pressing a button once.

4.2 PREPARATION PROCEDURE

Before using the unit, perform the calibration according the following ow. The procedure depends on the conguration options or modes.
•Two conguration modes are available with the model M3LU2-x/A, eld conguration using the DIP SW / control buttons (hereafter called ‘DIP SW conguration’) and the PC conguration.
•The model M3LU2-x/B is for the DIP SW conguration only.
CONFIGURING DIP SW & JP2
DIP SW conguration PC conguration
INPUT RANGING
• With front control buttons and a simulator.
OUTPUT RANGING
• With front control buttons, a simulator and a multimeter.
WIRING & MOUNTING ON DIN RAIL
POWER ON
I/O SETTING AND CALIBRATION
• Using the PC Congurator Software (model: M3LUCFG).
STARTING OPERATION
9M3LU2 OPERATING MANUAL EM-2653-B Rev.0

5. COMPONENT IDENTIFICATION

5.1 FRONT AND SIDE VIEWS

(1)
(2)
(3)
(4)
(7)
(5)
(9)
(8)
(6)
(1) LED1 (LD1), LED2 (LD2) and LED3 (LD3)
The blinking pattern (ON/blink/OFF) of the tri-color (green/amber/red) LEDs indicates a mode or an operation status of the transmitter.
(2) MODE, UP and DOWN Buttons
Used for the I/O ranging and ne adjustments by ‘One-Step Cal’, and for reset of the parameters to the default status. The functions of the buttons are shown in the following table.
BUTTON FUNCTION
MODE
UP
DOWN
Used to move on to the I/O Ranging Mode, Fine Adjustment Mode and RUN Mode, and to reset the parameters to the default status.
Used to congure 100% input in the Input Ranging Mode and 100% output in the Output Ranging Mode, and to increase the output in the Fine Adjustment Mode.
Used to congure 0% input in the Input Ranging Mode and 0% output in the Output Ranging Mode, and to decrease the output in the Fine Adjustment Mode.
(3) Congurator jack
Used to connect with a PC using the PC Congurator Software (model: M3LUCFG) for various settings, I/O ranging and ne adjustments. Connect a dedicated cable between the congurator jack and the PC.
(4) Cover for congurator jack
Slide the cover to connect the cable to the congurator jack. Close the cover in the normal operation.
(5) Specication label
The model No., power input and serial No. (SER NO) are printed on the label.
(6) Connection diagram
The connection diagram for each terminal is shown.
(7) DIP SW setting
The DIP switch settings are shown.
(8) I/O range label
When I/O range indication is necessary, write in the congured ranges on the I/O range label included in the product package and put it on the side of the unit.
(9) Tag name label
When a tag No. is specied, the unit(s) will be shipped with the tag name label put on the above position.
10M3LU2 OPERATING MANUAL EM-2653-B Rev.0

5.1.1 STATUS INDICATOR LED

Combinations of the three front LEDs (LD1, LD2 and LD3) indicates the transmitter’s operating status by different blinking patterns. The patterns depend on the conguration modes, DIP SW conguration and PC conguration.
Examples are shown below.
LED COLOR PATTERN
Red
Amber
Green
R
A
G
ON
Blink
OFF
■ NORMAL OPERATION (RUN) MODE
Combination of the LEDs and their blinking patterns indicate normal or abnormal operation of the unit, and are useful to identify error modes.
•Normal operation (RUN) mode
DIP SW CONFIGURATION PC CONFIGURATION
•Error mode
ERROR DIP SW CONFIGURATION PC CONFIGURATION
Output saturated
Burnout
DIP SW error
System error
The output is below -15% or above +115%. Check the setting and input.
The sensor or the input wiring is disconnected. Check the sensor and wiring.
DIP SW conguration is inappropriate. Check the SW settings.
Indicates the CPU’s communication error.
11M3LU2 OPERATING MANUAL EM-2653-B Rev.0
■ I/O RANGING MODE & FINE ADJUSTMENT MODE
The LED status in the I/O ranging and ne adjustments using the ‘One-Step Cal’ is shown in the following tables.
MODE LED MODE LED
Input ranging
Output ranging Fine span adjustment
Fine zero adjustment
NOTE
In the I/O ranging and ne adjustments using the PC Congurator Software (model: M3LUCFG), the LEDs are not ac­cording to the above tables.
12M3LU2 OPERATING MANUAL EM-2653-B Rev.0

5.2 INTERNAL VIEW

(1) SW1
(2) SW2 (3) SW3
(4) JP2
(1) SW1
Sets output type.
(2) SW2
Sets wires, cold junction compensation, burnout, front control button lock and output type.
(3) SW3
Sets input type, sensor type and conguration mode.
(4) JP2
Sets input type.
13M3LU2 OPERATING MANUAL EM-2653-B Rev.0

6. HOW TO OPEN THE COVER

■
Open the housing cover to set the DIP switches and JP2 inside the cover.
■ HOW TO OPEN THE COVER
(1) Hold the locks at the top and bottom of the unit. (2) Slide the housing cover gently to open until it hits the latching inside the unit (approx. 3.5 cm).
Top
Front
Approx. 3.5 cm
Lock
Lock
Bottom
■
Lock
Lock
•Do not open the cover while the power or the input is applied.
•Do not touch the printed circuit board or the electronic components in opening the cover.
•Do not pull beyond where the cover is latched.
■ HOW TO CLOSE THE COVER
(1) Push the front to close the cover.
Front
•Before closing the cover, make sure that there is not a conductive foreign material attached on the printed cir-cuit board.
•Be sure to close the cover after setting.
•Be careful not to get your hand or nger caught in the cover.
•Do not force the cover closed. Doing so may result in damage of the electronic components.
14M3LU2 OPERATING MANUAL EM-2653-B Rev.0

7. DIP SWITCH CONFIGURATION

SW1
This chapter describes the conguration of the I/O specications and functions using the DIP switches and the JP2. For the PC conguration, some DIP switch settings are necessary.

7.1 DIFFERENCE BETWEEN DIP SW CONFIGURATION AND PC CONFIGURATION

The following table shows the difference between the DIP SW conguration and PC conguration.
CONFIGURATION ITEM DIP SW CONFIGURATION PC CONFIGURATION
Conguration mode SW3-8 OFF SW3-8 ON
JP2 for input type Required Required
DIP SW for input Required ----
Output type Required Required for SW1-1 through 1-4
Front control button lock As necessary As necessary

7.2 DIP SWITCH SELECTION PER I/O SPECIFICATION AND FUNCTION

Congure the DIP switches and JP2 according to your I/O specications and functions. The unit reads the DIP-switch-calibrated conguration only once after the power supply is turned on. Set the switches with the power supply removed. Some tools are needed to set the DIP switches and JP2.
•Set the switches and JP2 with the power supply removed.
•Use tweezers or longnose pliers to switch the JP2.
•Use a minus screwdriver with the blade edge 0.8 mm (0.03”) to set the DIP switches.
•Do not touch other electronic components except for the JP2 and DIP switches.
SW2 SW3
JP2
15M3LU2 OPERATING MANUAL EM-2653-B Rev.0

7.2.1 CONFIGURATION MODE

With the model M3LU2-x/A, select the conguration mode (conguration method of I/O specications), DIP SW congura­tion or PC conguration, as shown in the following table. With the model M3LU2-x/B, turn the SW3-8 OFF.
DIP SW conguration: sets I/O specications with the DIP switches inside the cover and the front control buttons. PC conguration: sets I/O specications with the PC Congurator Software (model: M3LUCFG).
MODE SW3-8
DIP SW OFF
PC ON

7.2.2 INPUT TYPE (JP2)

Switch the JP2 jumper according to the input specications. Note that the JP2 setting is required with the PC conguration.
DC VOLTAGE [V] RANGE POSITION [maximum range: -10 to +10 V DC]
Jumper
12
3
Switch the JP2 jumper to the 2-3 position. Switch the JP2 jumper to the 1-2 position.
NORMAL POSITION (other than DC voltage [V] range)
Jumper
12
3

7.2.3 INPUT (DIP SWITCHES)

Set the DIP switches (SW2-1 through 2-5, SW3-1 through 3-7) according to the input specications. These settings are not required with the PC conguration.
7.2.3.1 DC current input
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
OFF OFF OFF OFF OFF OFF OFF
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
OFF OFF OFF OFF OFF
7.2.3.2 DC voltage input (mV) [maximum range: -1000 to +1000 mV DC]
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
OFF OFF ON OFF OFF OFF OFF
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
Refer to Burnout OFF OFF OFF
•Burnout
BURNOUT SW2-5 SW2-4
No burnout OFF OFF
Upscale OFF ON
Downscale ON ON
16M3LU2 OPERATING MANUAL EM-2653-B Rev.0
7.2.3.3 DC voltage input (V) [maximum range: -10 to +10 V DC]
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
OFF ON OFF OFF OFF OFF OFF
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
OFF OFF OFF OFF OFF
7.2.3.4 Thermocouple input
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
OFF ON ON Refer to Thermocouple type
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
Refer to Burnout Refer to Cold junction compensation OFF OFF
•Thermocouple type
T/C SW3-4 SW3-3 SW3-2 SW3-1
(PR) OFF OFF OFF OFF
K (CA) OFF OFF OFF ON
E (CRC) OFF OFF ON OFF
J (IC) OFF OFF ON ON
T (CC) OFF ON OFF OFF
B (RH) OFF ON OFF ON
R OFF ON ON OFF
S OFF ON ON ON
C (WRe 5-26) ON OFF OFF OFF
N ON OFF OFF ON
U ON OFF ON OFF
L ON OFF ON ON
P (Platinel II) ON ON OFF OFF
•Burnout
BURNOUT SW2-5 SW2-4
No burnout OFF OFF
Upscale OFF ON
Downscale ON ON
•Cold junction compensation
COLD JUNCTION COMPENSATION SW2-3
Enable OFF
Disable ON
17M3LU2 OPERATING MANUAL EM-2653-B Rev.0
7.2.3.5 RTD input
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
ON OFF OFF Refer to RTD type
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
Refer to Burnout OFF Refer to RTD wires
•RTD type
RTD SW3-4 SW3-3 SW3-2 SW3-1
Pt 100 (JIS ’97, IEC) OFF OFF OFF OFF
Pt 200 OFF OFF OFF ON
Pt 300 OFF OFF ON OFF
Pt 400 OFF OFF ON ON
Pt 500 OFF ON OFF OFF
Pt 1000 OFF ON OFF ON
Pt 50 Ω (JIS ’81) OFF ON ON OFF
JPt 100 (JIS ’89) OFF ON ON ON
Ni 100 ON OFF OFF OFF
Ni 120 ON OFF OFF ON
Ni 508.4 Ω ON OFF ON OFF
Ni-Fe 604 ON OFF ON ON
Cu 10 @25°C ON ON OFF OFF
•Burnout
BURNOUT SW2-5 SW2-4
No burnout OFF OFF
Upscale OFF ON
Downscale ON ON
•RTD wires
WIRES SW2-2 SW2-1
2-wire OFF OFF
3-wire OFF ON
4-wire ON ON
18M3LU2 OPERATING MANUAL EM-2653-B Rev.0
7.2.3.6 Resistance input
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
ON ON OFF OFF OFF OFF OFF
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
Refer to Burnout OFF Refer to Resistance wires
•Burnout
BURNOUT SW2-5 SW2-4
No burnout OFF OFF
Upscale OFF ON
Downscale ON ON
•Resistance wires
WIRES SW2-2 SW2-1
2-wire OFF OFF
3-wire OFF ON
4-wire ON ON
7.2.3.7 Potentiometer input
SW3-7 SW3-6 SW3-5 SW3-4 SW3-3 SW3-2 SW3-1
ON OFF ON Refer to Potentiometer (total resistance)
SW2-5 SW2-4 SW2-3 SW2-2 SW2-1
Refer to Burnout OFF OFF OFF
•Potentiometer (total resistance)
POTENTIOMETER (TOTAL RESISTANCE)
2500 to 4000 Ω OFF OFF OFF OFF
1200 to 2500 Ω OFF OFF OFF ON
600 to 1200 Ω OFF OFF ON OFF
300 to 600 Ω OFF OFF ON ON
150 to 300 Ω OFF ON OFF OFF
80 to 150 Ω OFF ON OFF ON
SW3-4 SW3-3 SW3-2 SW3-1
•Burnout
BURNOUT SW2-5 SW2-4
No burnout OFF OFF
Upscale OFF ON
Downscale ON ON
19M3LU2 OPERATING MANUAL EM-2653-B Rev.0

7.2.4 OUTPUT TYPE

Set the DIP switches (SW1-1 through 1-4, SW2-7 and 2-8) according to the output specications. The DIP switch settings (SW1-1 through 1-4) are required with the PC conguration.
7.2.4.1 DIP SW conguration
•DC current output
SW1-4 SW1-3 SW1-2 SW1-1 SW2-8 SW2-7
OFF ON OFF OFF OFF OFF
•DC voltage output (narrow spans) [maximum range: -2.5 to +2.5 V DC]
SW1-4 SW1-3 SW1-2 SW1-1 SW2-8 SW2-7
ON OFF OFF ON OFF ON
•DC voltage output (wide spans) [maximum range: -10 to +10 V DC]
SW1-4 SW1-3 SW1-2 SW1-1 SW2-8 SW2-7
ON OFF ON OFF ON OFF
7.2.4.2 PC conguration
•DC current output
SW1-4 SW1-3 SW1-2 SW1-1
OFF ON OFF OFF
•DC voltage output (narrow spans) [maximum range: -2.5 to +2.5 V DC]
SW1-4 SW1-3 SW1-2 SW1-1
ON OFF OFF ON
•DC voltage output (wide spans) [maximum range: -10 to +10 V DC]
SW1-4 SW1-3 SW1-2 SW1-1
ON OFF ON OFF

7.2.5 FRONT CONTROL BUTTON LOCK

You can lock the button operation on the front panel to prevent inadvertent operation.
LOCK SW2-6
Unlock OFF
Lock ON
20M3LU2 OPERATING MANUAL EM-2653-B Rev.0

8. WIRING

8mm
8mm

8.1 CAUTION IN WIRING

•Make sure for safety that only qualied personnel performs the wiring.
•In order to prevent potential electric shock, wire the unit after turning off the power supply and making sure that the
power is not supplied to the cable.
•Be sure to conrm the name and polarity of each terminal before wiring to the Euro type connector terminal blocks (hereafter called ‘terminal block(s)’).
•Take measures to reduce noise as much as possible, e.g. by using shielded twisted pair wires for the input signal. Ground the input shield to the most stable earth to prevent noise troubles.
•Do not connect anything to unused terminals.
•M-System offers a series of lightning surge protectors for protection against induced lightning surges. Please con-
tact M-System to choose appropriate models.

8.2 WIRING INSTRUCTIONS

■ APPLICABLE WIRE SIZE
•Solid: 0.25 to 2.5 mm
•Stranded: 0.25 to 2.5 mm
2
(0.55 to 1.75 dia.)
2
(0.55 to 1.75 dia.)
8mm
•Tinning wire ends may cause contact failure and therefore is not recommended.
•Expose wire conductors by 8 mm (0.31”).
■ RECOMMENDED FERRULE
The following Phoenix Contact terminals are recommended.
•For single-wire •For twin-wire
CROSS-SECTION AREA MODEL CROSS-SECTION AREA MODEL
0.2 to 0.25 mm
0.25 to 0.34 mm
0.34 to 0.5 mm
0.5 to 0.75 mm
0.75 to 1.0 mm
1.0 to 1.5 mm
2
2
2
2
2
2
AI 0,25-8 YE 0.34 to 0.5 mm
AI 0,34-8 TQ 0.5 to 0.75 mm
AI 0,5-8 WH 0.75 to 1.0 mm
AI 0,75-8 GY 1.0 to 1.5 mm
AI 1,0-8 RD
AI 1,5-8 BK
2
2
2
2
AI-TWIN 2X 0,5-8 WH
AI-TWIN 2X 0,75-8 GY
AI-TWIN 2X 1,0-8 RD
AI-TWIN 2X 1,5-8 BK
Recommended manufacturer: Phoenix Contact GmbH & Co., KG
21M3LU2 OPERATING MANUAL EM-2653-B Rev.0
■ INSTALLATION/SEPARATION OF TERMINAL BLOCK
•Separation Insert a minus screwdriver between the terminal block and the housing body, pull up the driver and pull out the terminal block.
•Installation Push the terminal block until it clicks into place.
NOTE
Match the terminal numbers of the terminal blocks with those indicated on the trans­mitter body in installing the blocks (gure on the right).
22M3LU2 OPERATING MANUAL EM-2653-B Rev.0
■ WIRING TO TERMINAL BLOCK
Insert a wire into the dead end of a terminal block and x it with a minus screwdriver with the blade edge 0.6 mm (0.02”) and the blade width 3.5 mm (0.14”) (torque: 0.5 – 0.6 N∙m).
NOTE
•For a thermocouple input, replace the terminal block (4 – 5 – 6) with the one connected with the CJC sensor included in the package. Fasten the input wire and the CJC sensor together on the terminal 5.
•Do not use a ferrule with insulating sleeve.
•Insert a wire under the CJC sensor (gure on the right).
CJC sensor (model: CJM)

8.3 TERMINAL ASSIGNMENT

Power
Output signal
Input signal
23M3LU2 OPERATING MANUAL EM-2653-B Rev.0

8.4 TERMINAL CONNECTIONS

■ DC POWERED TYPE
DC
VOLT
mA
mV
–+–
■ AC POWERED TYPE
DC
VOLT
mA
mV
–+–
+
+
T/C
ext. wire
+
–
*1
CJC
SENSOR
T/C
ext. wire
+
–
*1
CJC
SENSOR
2-wire
RTD
3-wire
RTD
A
4-wire
RTD
A
B
+
–
B
B
POT.
max.
+
1
A
B
3
2
3
4
min.
2
5
1
–
A
B
7
8
11
12
+
OUTPUT
–
+
DC POWER
–
*2
6
CONFIGURATOR
2-wire
RTD
3-wire
RTD
A
4-wire
RTD
A
B
+
POT.
max.
A
B
A
–
B
B
B
min.
JACK
+
1
3
2
3
4
2
5
1
–
7
8
10
12
+
OUTPUT
–
U
AC POWER
V
*2
6
CONFIGURATOR
JACK
*1 Replace the Euro Type Connector Terminal Block (4 – 5 – 6) with the one connected with the CJC Sensor, included in the package. The CJC Sensor is secured to the terminal 6. Loosen only the terminal 4 – 5 and connect the T/C extension wires. *2 Be aware that the AC power and DC power connect to different terminals.

8.4.1 WIRING INPUT

8.4.1.1 DC voltage/current input
Connect DC voltage or current wires.
DC current input DC voltage input (V) DC voltage input (mV)
Maximum range: 0 to 20 mA DC Maximum range: -10 to +10 V DC Maximum range: -1000 to +1000m V DC
DC current
Ground
(resistance
100 ohms or less)
DC voltage (V)
Ground
(resistance
100 ohms or less)
DC voltage (mV)
Ground
(resistance
100 ohms or less)
24M3LU2 OPERATING MANUAL EM-2653-B Rev.0
8.4.1.2 Thermocouple input
RTD or resistance
RTD or resistance
RTD or resistance
Connect a thermocouple or extension wires.
Thermocouple input
Extension
T/C
Ground
(resistance
100 ohms or less)
CJC sensor (model: CJM)
Wire
•Wire the unit with the thermocouple using the extension wires with the same characteristics as the thermocouple.
•The CJC sensor is calibrated to a particular unit and not inter­changeable with another. Match the serial No. of the unit and the sensor (gure on the right).
•Be careful not to change the temperature around the terminal block. Take care that wind from a fan does not hit it directly.
•Be careful not to separate the CJC sensor from the terminal block. Do not loosen the screw on the terminal 6. If you did, connect the CJC sensor to the terminals 5 and 6.
Serial No.
CJC sensor (model: CJM)
8.4.1.3 RTD/resistance input
Connect a RTD or a resistance. Connect according to the RTD/resistance wires.
RTD/resistance input
2-wire 3-wire 4-wire
Ground
(resistance
100 ohms or less)
Ground
(resistance
100 ohms or less)
Ground
(resistance
100 ohms or less)
•The leadwire resistance including internal resistance such like a lightning surge protector and a barrier must be maxi­mum 20 Ω per wire.
•The excitation is 0.3 mA. Use a RTD with excitation 0.3 mA or more.
25M3LU2 OPERATING MANUAL EM-2653-B Rev.0
8.4.1.4 Potentiometer input
Connect a potentiometer.
Potentiometer input
Potentiometer
Max.
Min.
Ground
(resistance
100 ohms or less)

8.4.2 WIRING OUTPUT

Voltage or current output is provided depending on the output setting.
Output
Output
Ground
(resistance
100 ohms or less)

8.4.3 WIRING POWER

Connect power according to the power input code. The power specications are shown in the following table.
CODE RATING ALLOWABLE RANGE & POWER CONSUMPTION
M2 100 to 240 V AC 85 to 264 V AC, 47 to 66 Hz
Approx. 4 VA at 100 V Approx. 5 VA at 200 V Approx. 6 VA at 264 V
R4 10 to 32 V DC 9 to 36 V DC, approx. 3 W
DC power AC power
AC power
DC power
•Be aware that the AC power and DC power connect to different terminals.
•For DC power, conrm the polarity.
26M3LU2 OPERATING MANUAL EM-2653-B Rev.0

9. INSTALLATION

■ DIN RAIL MOUNTING
Set the unit so that its DIN rail adaptor is at the bottom. Position the upper hook at the rear side of the unit on the DIN rail and push in the lower.
DIN Rail 35mm wide
Spring Loaded DIN Rail Adaptor
■ REMOVAL
Push down the DIN rail adaptor utilizing a minus screwdriver and pull.
DIN Rail 35mm wide
Spring Loaded DIN Rail Adaptor
27M3LU2 OPERATING MANUAL EM-2653-B Rev.0

10. CALIBRATION

‘Calibration’ means I/O ranging or output ne adjustments using the front control buttons. M-System’s ‘One-Step-Cal’ cali­bration technique realizes automatic I/O ranging and adjustment. This chapter describes ow and operation procedure of the calibration. You can also carry out the calibration using the PC Congurator Software (model: M3LUCFG). For detailed information, refer to the M3LUCFG users manual.

10.1 CALIBRATION FLOW

The calibration includes I/O Ranging Mode and Fine Adjustment Mode. Hold down the MODE button to shift each mode from the RUN Mode. The mode to shift depends on the time to hold down the button. The following chart shows the calibration ow.
Hold down
Press
Press
Fine Adjustment ?
1 – 2 s
FINE ZERO
ADJUSTMENT MODE
or
FINE SPAN
ADJUSTMENT MODE
or
RUN MODE
*1
Hold down
Press
Press
I/O Ranging ?
INPUT
RANGING
MODE
OUTPUT
RANGING
MODE
Amber LED
Green LED
Red LED
≥ 5s
Apply simulated 0% input signal.
Apply simulated 100% input signal.
Adjust simulated input until the output meter shows desired 0% output.
Adjust simulated input until the output meter shows desired 100% output.
OFF
ON
Blink
Hold down
Hold down
Hold down
Hold down
MODE button
UP button
DOWN button
*2
0% INPUT
CONFIGURED
*2
100% INPUT
CONFIGURED
*2
0% OUTPUT
CONFIGURED
*2
100% OUTPUT
CONFIGURED
RUN MODE
*1
*1 In the RUN Mode, the green LD1 blinks (PC conguration), or turns on (DIP SW conguration). *2 When you set 0% or 100% input/output ranges, keep pressing UP or DOWN button until the LD1 blinks for approx. 2 seconds and
turns off, which indicates the setup is complete. When you release the button, the LD1 is returned to ON. Therefore hold down the button until the LD1 turns OFF.
28M3LU2 OPERATING MANUAL EM-2653-B Rev.0

10.2 INPUT & OUTPUT RANGING

After the DIP switch setting is complete, set up the precise input and output range using the front control buttons. Be sure that the front control button function is enabled with the DIP switch setting (SW2-6 OFF).

10.2.1 OUTLINE OF I/O RANGING

■ PREPARATION
Mount the DIP-SW-congured M3LU2 on to a DIN rail. Connect the M3LU2 to a simulator and a multimeter and to a power source according to the terminal connections.
■ INPUT RANGING
•In the Input Ranging Mode, apply the desired minimum input level from the simulator and hold down DOWN button until the LD1 blinks and then turns OFF.
•Then apply the desired maximum input level and hold down UP button until the LD1 blinks and then turns OFF.
[Example 1] Setting input to 0 – 5 V DC Maximum input range: -10 to +10 V DC 0% input ranging: apply 0 V DC and hold down DOWN button 100% input ranging: apply 5 V DC and hold down UP button
-10 V
0% input ranging
0 V
0 V
Max. input range
Input ranging
+5 V
+10 V
100% input ranging 5 V
NOTE
•Input ranging is not needed in using the default value.
•100% input ranging value must be greater than 0% value.
•Set the input within the maximum range with the minimum span or more. With inappropriate input level, the input rang-
ing is not carried out even in holding down UP or DOWN button. (The LD1 does not change.)
•There is no stated order of setting 0% and 100% levels or no limitations of entering values for multiple times within one step of Ranging Mode.
•Signal level is not stored when UP or DOWN button is released before the LD1 turns OFF.
29M3LU2 OPERATING MANUAL EM-2653-B Rev.0
■ OUTPUT RANGING
•In the Output Ranging Mode, increase or decrease the simulated input until the meter shows the desired minimum output level. Hold down DOWN button until the LD1 blinks and then turns OFF.
•Then increase or decrease the simulated input until the meter shows the desired maximum output level. Hold down UP button until the LD1 blinks and then turns OFF.
[Example 2] Setting output to 0 – 16 mA DC (input 0 – 5 V DC [Example 1]) Maximum output range: 0 – 20 mA DC 0% output ranging: increase or decrease a simulated input until the meter shows 0 mA DC and hold down
DOWN button.
100% output ranging: increase or decrease a simulated input until the meter shows 16 mA DC and hold
down UP button.
-10 V
0% input ranging
0% output ranging
0 V
0 mA
0 mA
0 V
Max. input range
Input ranging
Max. output range
Output ranging
+5 V
+10 V
100% input ranging 5 V
16 mA
20 mA
100% output ranging 16 mA
IMPORTANT
•Use a simulator to adjust the desired output.
•A different signal from that in the input ranging may be applied.
•Increase or decrease a simulated input while conrming the output with a multimeter.
•Even if the input ranging is performed after the output ranging, another output ranging is not needed.
NOTE
•Output ranging is not needed in using the default value.
•100% output ranging value must be greater than 0% value.
•Set the output within the maximum range with the minimum span or more. With inappropriate output level, the output
ranging is not carried out even in holding down UP or DOWN button. (The LD1 does not change.)
•There is no stated order of setting 0% and 100% levels or no limitations of entering values for multiple times within one step of the Ranging Mode.
•Signal level is not stored when UP or DOWN button is released before the LD1 turns OFF.
30M3LU2 OPERATING MANUAL EM-2653-B Rev.0

10.2.2 MAXIMUM RANGE, MINIMUM SPAN AND DEFAULT VALUE OF INPUT

The maximum range, minimum span and default value of the input are shown in the following tables. The default value means initial 0% and 100% input when the DIP switch setting is changed.
10.2.2.1 DC current input
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
0 to 20 mA DC 1 mA 4 to 20 mA DC
10.2.2.2 DC voltage input (mV)
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
-1000 to +1000 mV DC 4 mV 0 to 1000 mV DC
10.2.2.3 DC voltage input (V)
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
-10 to +10 V DC 1 V 1 to 5 V DC
10.2.2.4 Thermocouple input
Minimum span: 20°C (36°F) Default value: same as conformance range in °C
THERMOCOUPLE °C °F
MAXIMUM RANGE CONFORMANCE RANGE MAXIMUM RANGE CONFORMANCE RANGE
(PR) 0 to 1760 0 to 1760 32 to 3200 32 to 3200
K (CA) -270 to +1370 -150 to +1370 -454 to +2498 -238 to +2498
E (CRC) -270 to +1000 -170 to +1000 -454 to +1832 -274 to +1832
J (IC) -210 to +1200 -180 to +1200 -346 to +2192 -292 to +2192
T (CC) -270 to +400 -170 to +400 -454 to +752 -274 to +752
B (RH) 100 to 1820 400 to 1760 212 to 3308 752 to 3200
R -50 to +1760 200 to 1760 -58 to +3200 392 to 3200
S -50 to +1760 0 to 1760 -58 to +3200 32 to 3200
C (WRe 5-26) 0 to 2315 0 to 2315 32 to 4199 32 to 4199
N -270 to +1300 -130 to +1300 -454 to +2372 -202 to +2372
U -200 to +600 -200 to +600 -328 to +1112 -328 to +1112
L -200 to +900 -200 to +900 -328 to +1652 -328 to +1652
P (Platinel II) 0 to 1395 0 to 1395 32 to 2543 32 to 2543
31M3LU2 OPERATING MANUAL EM-2653-B Rev.0
10.2.2.5 RTD input
Minimum span: 20°C (36°F) Default value: same as maximum range in °C
RTD °C °F
MAXIMUM RANGE MAXIMUM RANGE
Pt 100 (JIS ’97, IEC) -200 to +850 -328 to +1562
Pt 200 -200 to +850 -328 to +1562
Pt 300 -200 to +850 -328 to +1562
Pt 400 -200 to +850 -328 to +1562
Pt 500 -200 to +850 -328 to +1562
Pt 1000 -200 to +850 -328 to +1562
Pt 50 Ω (JIS ’81) -200 to +649 -328 to +1200
JPt 100 (JIS ’89) -200 to +510 -328 to +950
Ni 100 -80 to +260 -112 to +500
Ni 120 -80 to +260 -112 to +500
Ni 508.4 Ω -50 to +200 -58 to +392
Ni-Fe 604 -200 to +200 -328 to +392
Cu 10 @25°C -50 to +250 -58 to +482
10.2.2.6 Resistance input
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
0 to 4000 Ω 10 Ω 0 to 4000 Ω
10.2.2.7 Potentiometer input
MAXIMUM RANGE (TOTAL RESISTANCE)
2500 to 4000 Ω 2% of total resistance 0 to 100%
1200 to 2500 Ω
600 to 1200 Ω
300 to 600 Ω
150 to 300 Ω
80 to 150 Ω
MINIMUM SPAN DEFAULT VALUE

10.2.3 MAXIMUM RANGE, MINIMUM SPAN AND DEFAULT VALUE OF OUTPUT

The maximum range, minimum span and default value of the output are shown in the following tables. The default value means initial 0% and 100% output when the DIP switch setting is changed.
10.2.3.1 DC current output
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
0 to 20 mA DC 1 mA 4 to 20 mA DC
10.2.3.2 DC voltage output (narrow spans)
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
-2.5 to +2.5 V DC 250 mV 0 to 1 V DC
10.2.3.3 DC voltage output (wide spans)
MAXIMUM RANGE MINIMUM SPAN DEFAULT VALUE
-10 to +10 V DC 1 V 1 to 5 V DC
32M3LU2 OPERATING MANUAL EM-2653-B Rev.0

10.2.4 OPERATION PROCEDURE OF I/O RANGING

Perform the I/O ranging in the following procedure.
In the RUN Mode, hold down MODE button for 5 seconds or more until the LD1 red LED is ON.
1
Green ON
or
blinking
5 sec. or more
•Conrm that the LD1 green LED is ON (DIP SW conguration) or blinking (PC conguration). Then hold down MODE button for 5 seconds or more until the LD1 red LED is ON.
•The LD2 red LED starts blinking indicating the Input Ranging Mode.
Apply the desired minimum input level and hold down DOWN button until the LD1 turns OFF.
Red ON
Red blinking
2
Red ON
Red blinking
•Hold down DOWN button, and the LD1 red LED blinks in approx. 2 sec. and then turns OFF in approx. 2 sec.
•The LD1 turning OFF means completion of 0% input ranging. Hold down DOWN button until the LD1 turns OFF.
•Skip to the next procedure when 0% input ranging is not necessary.
Apply the desired maximum input level and hold down UP button until the LD1 turns OFF.
Rapid
red blinking
Approx. 2 sec.
OFF Red ON
Approx. 2 sec.
Release button
0% input ranging completed
3
Red ON
Red blinking
Rapid
red blinking
Approx. 2 sec. Approx. 2 sec.
OFF
Red ON
Release button
100% input ranging completed
•Hold down UP button, and the LD1 red LED blinks in approx. 2 sec. and then turns OFF in approx. 2 sec.
•The LD1 turning OFF means completion of 100% input ranging. Hold down UP button until the LD1 turns OFF.
•Skip to the next procedure when 100% input ranging is not necessary.
33M3LU2 OPERATING MANUAL EM-2653-B Rev.0
Press MODE button to go on to the Output Ranging Mode.
4
Red ON
Red blinking
Press once
•Press MODE button once to go on to the Output Ranging Mode.
•The LD2 turns OFF and the LD3 red LED starts blinking indicating the Output Ranging Mode.
Increase or decrease the simulated input until the meter shows the desired minimum output level. Hold
down DOWN button until the LD1 turns OFF.
5
OFF
Red blinking
Red ON Red ONOFF
Red blinking
•Hold down DOWN button, and the LD1 red LED blinks in approx. 2 sec. and then turns OFF in approx. 2 sec.
•The LD1 turning OFF means completion of 0% output ranging. Hold down DOWN button until the LD1 turns OFF.
•Skip to the next procedure when 0% output ranging is not necessary.
Increase or decrease the simulated input until the meter shows the desired maximum output level. Hold
down UP button until the LD1 turns OFF.
6
Red ON
Red blinking
Rapid
red blinking
Approx. 2 sec.Approx. 2 sec.
Rapid
red blinking
Approx. 2 sec. Approx. 2 sec.
OFF
Release button
0% ouput ranging completed
Red ON
Release button
100% ouput ranging completed
•Hold down UP button, and the LD1 red LED blinks in approx. 2 sec. and then turns OFF in approx. 2 sec.
•The LD1 turning OFF means completion of 100% output ranging. Hold down UP button until the LD1 turns OFF.
•Skip to the next procedure when 100% output ranging is not necessary.
34M3LU2 OPERATING MANUAL EM-2653-B Rev.0
Press MODE button to return to the RUN Mode.
7
Green ON
Red ON
Red blinking
Press once
•Press MODE button once to return to the RUN mode.
•The LD3 turns OFF and the LD1 green LED is ON (DIP SW conguration) or blinking (PC conguration).
or
blinking
OFF
35M3LU2 OPERATING MANUAL EM-2653-B Rev.0

10.3 FINE ADJUSTMENT MODE

Perform the ne zero and span adjustments to correct the deviation between the output signal and a device on site. Be sure that the front control button function is enabled with the DIP switch setting (SW2-6 OFF). Note that M-System does not warrant the adjustments by the customer. Each time the adjustment is performed, signal level is overwritten and is stored even when the power is off.

10.3.1 OUTLINE OF FINE ADJUSTMENT

The following owchart shows the ne zero/span adjustments.
POWER ON
Warming up (10 min. or more)
Moving on to output ne zero adjustment
Adjusting output with UP/DOWN buttons
Moving on to output ne span adjustment
Adjusting output with UP/DOWN buttons
Readjustment
Conrming output value
(operation check)
Adjustment completed
Measurement started
NOTE
•Warm up measuring instruments, equipment and other devices on site for the time specied in each manual, and oper­ate the unit in a stable condition.
•Adjustable ranges are as follows:
Fine zero adjustment -15 to +15% Fine span adjustment 85 to 115%
36M3LU2 OPERATING MANUAL EM-2653-B Rev.0

10.3.2 OPERATION PROCEDURE OF FINE ADJUSTMENT

Perform the ne adjustment in the following procedure.
Hold down MODE button for 1 to 2 seconds and release the button to go on to the Fine Zero Adjustment
Mode.
1
Green ON
or
blinking
•Conrm that the LD1 green LED is ON (DIP SW conguration) or blinking (PC conguration). Then hold down MODE button for 1 to 2 seconds and release the button. The LD1 red LED will be ON.
•The LD2 green LED starts blinking indicating the Fine Zero Adjustment Mode.
Use UP (increase) and DOWN (decrease) buttons to adjust the output to 0%. Check the output with a multim-
eter.
2
Hold down for 1 to 2 sec.
Release button
Output
Red ON
Green blinking
Increase output
Decrease output
•Adjust the output value to 0% regardless of the input.
•Increase the output with UP button, and decrease with DOWN.
•Skip to the next procedure when ne zero adjustment is not necessary.
Press MODE button to go on to the Fine Span Adjustment Mode.
UP (increase)
DOWN (decrease)
↑
↓
Input
3
Red ON
Green blinking
Green blinking
Press once
•Press MODE button once to go on to the Fine Span Adjustment Mode.
•The LD2 turns OFF and the LD3 green LED starts blinking indicating the Fine Span Adjustment Mode.
OFF
37M3LU2 OPERATING MANUAL EM-2653-B Rev.0
Use UP (increase) and DOWN (decrease) buttons to adjust the output to 100%. Check the output with a mul-
↑
timeter.
4
Output
Increase output
UP (increase) DOWN (decrease)
↓
Decrease output
•Adjust the output value to 100% regardless of the input.
•Increase the output with UP button, and decrease with DOWN.
•Skip to the next procedure when ne span adjustment is not necessary.
Press MODE button to return to the RUN mode.
Input
5
Red ON
Green blinking
Press once
•Press MODE button once to return to the RUN Mode.
•The LD3 turns OFF and the LD1 green LED is ON (DIP SW conguration) or blinking (PC conguration).
Green ON
or
bllinking
OFF
38M3LU2 OPERATING MANUAL EM-2653-B Rev.0

11. CHECKING, MAINTENANCE, INITIALIZATION OF PARAMETERS

11.1 CHECKING

(1) Terminal wiring: Check that all cables are correctly connected according to the connection diagram. (2) DIP SW setting: Check that the switches are set to appropriate positions. (3) Power input voltage: Check voltage across the terminal 10 – 12 (AC) or 11 – 12 (DC) with a multimeter. (4) Input: Check that the input signal is within 0 to 100% of full-scale.
If the DC voltage (mV), thermocouple, RTD, resistance, potentiometer input or their extension wires is/are discon­nected, the output goes over 100% (below 0% with downscale protection) due to burnout function. Conrm the status indicator LED pattern and check leadwires in such a case.
(5) Output: Check that the load resistance meets the described specications.

11.2 MAINTENANCE

Perform the periodic calibration as stated below.
■ CALIBRATION
Warm up the unit for 10 minutes or more, apply 0, 25, 50, 75 and 100% input to the unit, and make sure that the output is 0, 25, 50, 75 and 100% respectively within the prescribed accuracy. In case the output is deviated from the accuracy, perform the ne zero/span adjustment.

11.3 INITIALIZATION OF PARAMETERS

You can reset the DIP-SW-congured parameters (I/O ranging and ne adjustments) to the default status. Reset the pa­rameters in the following procedure.
(1) Turn off the power supply to the unit, open the housing cover and set the SW2-1 to OFF and SW2-2 to ON position. (2) Close the cover and turn on the power while pressing MODE button. (3) Wait until green LED blinks at the LD1, LD2 and LD3. (4) Turn off the power, open the cover and reset the SW2-1 and SW2-2 to the previous position. (5) Close the cover and turn on the power again.
39M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12. APPENDICES

12.1 SPECIFICATIONS

12.1.1 GENERAL SPECIFICATIONS

Construction Small-sized front terminal structure
Connection Euro type connector terminal
Housing material Flame-resistant resin (gray)
Isolation Input to output to power
Overrange output -15 to +115% (negative current output is not available)
Zero adjustment -15 to +15% (front)
Span adjustment 85 to 115% (front)
Burnout (other than current or voltage (V) input) Upscale, downscale or no burnout selectable; Also detects wire breakdown and
overrange input exceeding the electrical design limit for DC input.
Linearization (T/C, RTD input) Standard
Cold junction compensation (T/C input) CJC sensor (included) to be attached to the input terminals
Status indicator LED Tri-color (green/amber/red) LED; Blinking patterns indicate operation status of the
transmitter.
Conguration DIP SW conguration Input type, sensor type, burnout action, RTD/resistance wires, cold junction com-
pensation, output type, conguration mode, front control button lock
PC conguration Refer to 12.2 PC CONFIGURATOR SOFTWARE.
Calibration I/O ranging and ne adjustment via ‘One-Step Cal’ calibration or PC
Congurator connection 2.5 dia. miniature jack; RS-232-C level

12.1.2 INPUT SPECIFICATIONS

Input types and ranges are shown in the following table.
DC Current Input resistance: 50 Ω resistor incorporated
Maximum range: 0 to 20 mA DC
Minimum span: 1 mA
mV & Voltage Input resistance: ≥ 1 MΩ
Maximum range: refer to Table 1
Minimum span: refer to Table 1
Thermocouple Input resistance: ≥ 1 MΩ
Maximum range: refer to Table 2
Burnout sensing: ≤ 4 µA
Conformance range: refer to Table 2
Minimum span: refer to Table 2
RTD (2-wire, 3-wire or 4-wire) Excitation: ≤ 0.3 mA
Maximum range: refer to Table 3
Allowable leadwire resistance: max. 20 Ω per wire
Minimum span: refer to Table 3
Resistance (2-wire, 3-wire or 4-wire) Excitation: ≤ 0.3 mA
Maximum range: 0 to 4000 Ω
Allowable leadwire resistance: max. 20 Ω per wire
Minimum span: 10 Ω
Potentiometer Excitation: ≤ 0.3 mA
Maximum range: refer to Table 5
Allowable leadwire resistance: max. 20 Ω per wire
Minimum span: 2%
40M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12.1.3 OUTPUT SPECIFICATIONS

Output types and ranges are shown in the following table.
DC Current Maximum range: 0 – 20 mA DC
Minimum span: 1 mA Conformance range: 0 – 23 mA DC Offset: Lower range can be any specic value within the output range provided that the minimum span is maintained. Load resistance: Output drive 15 V max. at 20 mA (Range: Load resistance) 0 – 20 mA : ≤ 750 Ω
DC Voltage Narrow spans
Maximum range: -2.5 – +2.5 V DC Minimum span: 250 mV Conformance range: -3 – +3 V DC Wide spans Maximum range: -10 – +10 V DC Minimum span: 1 V Conformance range: -11.5 – +11.5 V DC Offset: Lower range can be any specic value within the output range provided that the minimum span is maintained. Load resistance: Output drive 10 mA max.; 5 mA for negative output (Range: Load resistance) 0 – 10 V : ≥ 1 kΩ
-10 – 0 V : ≥ 2 kΩ 0 – 2.5 V : ≥ 250 Ω
-2.5 – 0 V : ≥ 500 Ω

12.1.4 INSTALLATION

Power comsumption AC power M2: 100 – 240 V AC Operational voltage range 85 – 264 V AC, 47 – 66 Hz
Approx. 4 VA at 100 V Approx. 5 VA at 200 V Approx. 6 VA at 264 V
DC power R4: 10 – 32 V DC Operational voltage range 9 – 36 V DC
Ripple 10% p-p max. Approx. 3 W
Operating temperature -25 to +60°C (-13 to +140°F)
Operating humidity 30 to 95% RH (non-condensing)
Mounting DIN rail
Weight 100 g (3.53 oz)

12.1.5 PERFORMANCE

Accuracy See Table 1 to 6.
Cold junction compensation error ±1.0°C at 0 – 50°C (±1.8°F at 32 – 122°F)
Temp. coefficient ±0.015%/°C [±0.008%/°F] at -5 to +55°C [23 to 131°F] of max. range
±0.03%/°C [±0.016%/°F] for the following conditions:
•DC,T/Cinputspans≤10mV •RTD,potentiometer,resistancespans≤80Ω •inanambientexceeding55°C[131°F]orbelow-5°C[23°F]
Response time ≤ 0.2 sec. (0 – 90%, DC input)
(With the Option A, the Sync Filter set to the fastest frequency on the PC Congu­rator Software. Default is set to have 0.5 sec. response.)
Burnout response ≤ 10 sec.
Line voltage effect ±0.1% over voltage range
Insulation resistance ≥ 100 MΩ with 500 V DC
Dielectric strength 2000 V AC @ 1 minute (input to output to power to ground)
41M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12.1.6 STANDARDS & APPROVALS

EU conformity EMC Directive (2004/108/EC)
EMI EN 61000-6-4: 2007/A1: 2011 EMS EN 61000-6-2: 2005 Low Voltage Directive (2006/95/EC) EN 61010-1: 2010 Installation Category II Pollution Degree 2 Input or output to power: Reinforced insulation (300 V) Input to output: Basic insulation (300 V)

12.1.7 I/O TYPE, MAXIMUM RANGE & ACCURACY

[Table 1] DC input
INPUT TYPE MINIMUM SPAN MAXIMUM RANGE
ACCURACY
DC Current 1 mA 0 to 20 mA DC ±0.1%
DC Millivolt 4 mV -1000 to +1000 mV DC ±10 μV at F.S. input ≤ 50 mV
±40 μV at F.S. input ≤ 200 mV ±60 μV at F.S. input ≤ 500 mV ±80 μV at F.S. input > 500 mV
DC Voltage 1 V -10 to +10 V DC ±0.1%
*1 Or ±0.1% of span, whichever is greater.
[Table 2] Thermocouple input
T/C °C °F
MIN. SPAN
MAXIMUM RANGE
ACCURACY
*2
CONFORMANCE RANGE
MIN. SPAN
MAXIMUM RANGE
(PR) 20 0 to 1760 ±1.00 0 to 1760 36 32 to 3200 ±1.80 32 to 3200
K (CA) 20 -270 to +1370 ±0.25 -150 to +1370 36 -454 to +2498 ±0.45 -238 to +2498
E (CRC) 20 -270 to +1000 ±0.20 -170 to +1000 36 -454 to +1832 ±0.36 -274 to +1832
J (IC) 20 -210 to +1200 ±0.25 -180 to +1200 36 -346 to +2192 ±0.45 -292 to +2192
T (CC) 20 -270 to +400 ±0.25 -170 to +400 36 -454 to +752 ±0.45 -274 to +752
B (RH) 20 100 to 1820 ±0.75 400 to 1760 36 212 to 3308 ±1.35 752 to 3200
R 20 -50 to +1760 ±0.50 200 to 1760 36 -58 to +3200 ±0.90 392 to 3200
S 20 -50 to +1760 ±0.50 0 to 1760 36 -58 to +3200 ±0.90 32 to 3200
C (WRe 5-26) 20 0 to 2315 ±0.25 0 to 2315 36 32 to 4199 ±0.45 32 to 4199
N 20 -270 to +1300 ±0.30 -130 to +1300 36 -454 to +2372 ±0.54 -202 to +2372
U 20 -200 to +600 ±0.20 -200 to +600 36 -328 to +1112 ±0.36 -328 to +1112
L 20 -200 to +900 ±0.25 -200 to +900 36 -328 to +1652 ±0.45 -328 to +1652
P (Platinel II) 20 0 to 1395 ±0.25 0 to 1395 36 32 to 2543 ±0.45 32 to 2543
*2 [Accuracy + Cold Junction Compensation Error 1.0°C (1.8°F)] or ±0.1% of span, whichever is greater.
*1
ACCURACY
*2
CONFORMANCE RANGE
42M3LU2 OPERATING MANUAL EM-2653-B Rev.0
[Table 3] RTD input
RTD °C °F
*3
MIN. SPAN MAXIMUM RANGE
ACCURACY
MIN. SPAN MAXIMUM RANGE
ACCURACY
Pt 100 (JIS ’97, IEC) 20 -200 to +850 ±0.15 36 -328 to +1562 ±0.27
Pt 200 20 -200 to +850 ±0.15 36 -328 to +1562 ±0.27
Pt 300 20 -200 to +850 ±0.15 36 -328 to +1562 ±0.27
Pt 400 20 -200 to +850 ±0.15 36 -328 to +1562 ±0.27
Pt 500 20 -200 to +850 ±0.15 36 -328 to +1562 ±0.27
Pt 1000 20 -200 to +850 ±0.15 36 -328 to +1562 ±0.27
Pt 50 Ω (JIS ’81) 20 -200 to +649 ±0.15 36 -328 to +1200 ±0.27
JPt 100 (JIS ’89) 20 -200 to +510 ±0.15 36 -328 to +950 ±0.27
Ni 100 20 -80 to +260 ±0.15 36 -112 to +500 ±0.27
Ni 120 20 -80 to +260 ±0.15 36 -112 to +500 ±0.27
Ni 508.4 Ω 20 -50 to +200 ±0.15 36 -58 to +392 ±0.27
Ni-Fe 604 20 -200 to +200 ±0.15 36 -328 to +392 ±0.27
Cu 10 @25°C 20 -50 to +250 ±0.50 36 -58 to +482 ±0.90
*3 Or ±0.1% of span, whichever is greater.
[Table 4] Resistance input
MINIMUM SPAN MAXIMUM RANGE
ACCURACY
*4
10 Ω 0 to 4000 Ω ±0.1 Ω
*4 Or ±0.1% of span, whichever is greater.
*3
[Table 5] Potentiometer input
MINIMUM SPAN MAXIMUM RANGE
ACCURACY
*5
(TOTAL RESISTANCE)
2% 2500 to 4000 Ω
±0.1 Ω 1200 to 2500 Ω 600 to 1200 Ω 300 to 600 Ω 150 to 300 Ω 80 to 150 Ω
*5 Or ±0.1% of span, whichever is greater.
[Table 6] Output
OUTPUT TYPE MINIMUM SPAN MAXIMUM RANGE CONFORMANCE RANGE
DC Current
1 mA
*6
0 to 20 mA DC
0 to 23 mA DC
*7
DC Voltage 250 mV -2.5 to +2.5 V DC -3 to +3 V DC
1 V -10 to +10 V DC -11.5 to +11.5 V DC
*6 For current output, overall accuracy degrades another 0.1% with spans ≤ 2 mA. *7 Negative overrange current below 0 mA is not available.
43M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12.1.8 CALCULATION EXAMPLES OF OVERALL ACCURACY

■ DC INPUT
(1) 0 to 200 mV DC
Absolute value accuracy [Table 1]: 40 μV 40 μV ÷ 200000 μV × 100 = 0.02% < 0.1% ➠ Overall accuracy = ±0.1% of span
(2) 0 to 4 mV DC
Absolute value accuracy [Table 1]: 10 μV 10 μV ÷ 4000 μV × 100 = 0.25% > 0.1%
➠ Overall accuracy = ±0.25% of span
■ THERMOCOUPLE INPUT
(1) K thermocouple, -150 to +1370°C
Absolute value accuracy [Table 2]: 0.25°C CJC error (1.0°C) added: 1.25°C
1.25°C ÷ (1370°C – -150°C) × 100 = 0.082% < 0.1% ➠ Overall accuracy including CJC error = ±0.1% of span
(2) K thermocouple, 50 to 150°C
Absolute value accuracy [Table 2]: 0.25°C CJC error (1.0°C) added: 1.25°C
1.25°C ÷ (150°C – 50°C) × 100 = 1.25% > 0.1%
➠ Overall accuracy including CJC error = ±1.25% of span
■ RTD INPUT
(1) Pt 100, -200 to 800°C
bsolute value accuracy [Table 3]: 0.15°C
0.15°C ÷ (800°C – -200°C) × 100 = 0.015% < 0.1% ➠ Overall accuracy = ±0.1% of span
(2) Pt 100, 0 to 100°C
Absolute value accuracy [Table 3]: 0.15°C
0.15°C ÷ 100°C × 100 = 0.15% > 0.1%
➠ Overall accuracy = ±0.15% of span
■ RESISTANCE INPUT
(1) 0 to 1000 Ω
Absolute value accuracy [Table 4]: 0.1 Ω
0.1 Ω ÷ 1000 Ω × 100 = 0.01% < 0.1% ➠ Overall accuracy = ±0.1% of span
(2) 0 to 50 Ω
Absolute value accuracy [Table 4]: 0.1 Ω
0.1 Ω ÷ 50 Ω × 100 = 0.2% > 0.1%
➠ Overall accuracy = ±0.2% of span
■ POTENTIOMETER INPUT
(1) 300 to 800 Ω (total resistance 1000 Ω)
Absolute value accuracy [Table 5]: 0.1 Ω
0.1 Ω ÷ (800 Ω – 300 Ω) × 100 = 0.02% < 0.1% ➠ Overall accuracy = ±0.1% of span
(2) 30 to 80 Ω (total resistance 100 Ω)
Absolute value accuracy [Table 5]: 0.1 Ω
0.1 Ω ÷ (80 Ω – 30 Ω) × 100 = 0.2% > 0.1% ➠ Overall accuracy = ±0.2% of span
44M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12.2 PC CONFIGURATOR SOFTWARE

The I/O settings and calibration are congurable with the PC Congurator Software (model: M3LUCFG). It is convenient to set the same I/O specications to several units or the items which are not available with the DIP SW conguration or ‘One-Step Cal’ calibration. Whether the I/O settings are available or not depends on the conguration option code and conguration mode.
A dedicated cable is required to connect the unit to the PC.
PORT PC CONFIGURATOR CABLE MODEL NO.
RS-232-C MCN-CON
USB COP-US
The PC Congurator Software is freely downloadable at M-System’s web site (http://www.m-system.co.jp/). Software download model No.: M3CFG
■ I/O CONFIGURATION
The following table shows congurable items with the PC Congurator Software. For detailed information on the PC con­guration, refer to the M3LUCFG users manual (EM-9197-A).
ITEM M3LU2-x/A M3LU2-x/B
PC CONFIGURATION (SW3-8 ON)
Input type X ---- ----
Sensor wires X ---- ----
PV range (upper, lower) X ---- ----
PV damping (time constant) X X ----
Burnout X ---- ----
Cold junction compensation X ---- ----
Transfer function X X ----
AO type X ---- ----
AO range (upper, lower) X ---- ----
ADC conversion rate X X X
Custom TC X ---- ----
Custom RTD X ---- ----
Linearization table setting X X ----
DIP SW CONFIGURATION (SW3-8 OFF)
■ CALIBRATION
‘One-Step Cal’ calibration (I/O ranging) and DAC trimming (ne adjustments) are congurable with the PC Congurator Software regardless of the conguration option code and conguration mode.
■ REMARKS
For detailed information on the PC conguration, refer to the M3LUCFG users manual (EM-9197-A).
45M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12.3 MODEL NUMBERING

Code number: M3LU2–[1]/[2][3]
INPUT – Field-selectable
DC Current & Voltage Current: 0 – 20 mA DC Millivolt: -1000 – +1000 mV DC Voltage: -10 – +10 V DC Thermocouple (PR), K, E, J, T, B, R, S, C (WRe 5-26), N, U, L, P (Platinel II) RTD Pt 100, Pt 200, Pt 300, Pt 400, Pt 500, Pt 1000, Ni 100, Ni 120, Ni 508.4 Ω, Ni-Fe 604, Cu 10 @25°C, Pt 50 Ω, JPt 100 Potentiometer Total resistance 80 – 4000 Ω Resistance 0 – 4000 Ω
OUTPUT – Field-selectable
Current 0 – 20 mA DC Voltage
-2.5 – +2.5 V DC
-10 – +10 V DC
[1] POWER INPUT
AC Power M2: 100 – 240 V AC (Operational voltage range 85 – 264 V, 47 – 66 Hz) DC Power R4: 10 – 32 V DC (Operational voltage range 9 – 36 V, ripple 10% p-p max.)
[2] CONFIGURATION OPTIONS
A: PC and eld congurable B: Field congurable
[3] OPTIONS
blank: none /Q: With options (specify the specication)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System’s web site.) /C01: Silicone coating /C02: Polyurethane coating /C03: Rubber coating
46M3LU2 OPERATING MANUAL EM-2653-B Rev.0

12.4 EXTERNAL DIMENSIONS

10 11 12
789
DIN RAIL 35mm wide
mm (inch)
106 (4.17)
123
456
7
CJC SENSOR (model: CJM)
* Used only with a thermocouple input
*
18 (.71)
62 (2.44)
(.28)
110.5 (4.35)
[5 (.20)]
• When mounting, no extra space is needed between units
47M3LU2 OPERATING MANUAL EM-2653-B Rev.0
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