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M3SXR

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected]

EM-7703  Rev.3  P. 3 / 3

 

CONNECTION DIAGRAM

1

2

3

4

CONFIGURATOR

JACK

A

2-wire

RTD

3-wire

RTD

4-wire

RTD

B

A

B

B

A

B

A

B

5

6

7

8

+

OUTPUT

U(+)

V(–)

POWER

 

WIRING INSTRUCTIONS

  • Applicable wire size

   Solid:  

0.2 to 2.5 mm

2

 (0.55 to 1.75 dia.)

   Stranded:  0.2 to 2.5 mm

2

      

 

 Tinning wire ends may cause contact failure  

and therefore is not recommended.

     Ferruled:  0.2 to 1.5 mm

2

 (0.55 to 1.35 dia.)

      

 

 The following Phoenix Contact terminals are  

recommended:

      

 

AI 0,25-8YE 

0.2 to 0.25 mm

2

      

 

AI 0,34-8TQ 

0.25 to 0.34 mm

2

      

 

AI 0,5-8WH 

0.34 to 0.5 mm

2

      

 

AI 0,75-8GY 

0.5 to 0.75 mm

2

      

 

AI 1,0-8RD 

0.75 to 1.0 mm

2

      

 

AI 1,5-8BK 

1.0 to 1.5 mm

2

  • Expose wire conductors by 8 mm (0.31”).

8 mm

8 mm

4 mm dia.

max.

4 mm dia.

max.

Wire exposure

Recommended
ferruled wire

FRONT VIEW

  with the cover open

1

2

3

4

Power LED

Status Indicator LED

Configurator Jack

12345678

OFF

ON

SW1

Output Range Selectors

OUTPUT RANGING

The internal DIP switch setting is required to select output 
types before setting a precise output range using PC Con-
figurator Software (model: M3SCFG).
For detailed information on the PC configuration, refer to 
the M3SCFG users manual.

Table 1. DIP switch setting: Output type

Output Type

SW1

1

2

3

4

5

6

7

8

0 – 20mA*

1

ON

ON

OFF OFF OFF OFF ON

OFF

-5 – +5V

OFF OFF ON

OFF ON

OFF OFF ON

-10 – +10V

OFF OFF ON

OFF OFF ON

OFF ON

*1. For 0 – 1mA range, set switches as in the table below.

Output 
Range

SW1

1

2

3

4

5

6

7

8

0 – 1mA

OFF OFF ON

OFF OFF OFF ON

OFF

CHECKING

1) Terminal wiring:  Check that all cables are correctly con-

nected according to the connection diagram.

2) Power input voltage:  Check voltage across the terminal 

7 – 8 with a multimeter.

3) Input:  Check that the input signal is within 0 – 100% of 

the full-scale.

  If the RTD or its extension wires are broken, the output 

goes over 100% (below 0% with downscale protection) due 

to the burnout function.  Confirm the status indicator 

LED pattern and check leadwires in such a case.

4) Output:  Check that the load resistance meets the de-

scribed specifications.

STATUS INDICATOR LED

The transmitter is provided with a status indicator LED 
which blinks in different patterns indicating various oper-
ating status.
The following figure indicates typical patterns.

Normal operating mode

TRANSMITTER STATUS

ON

OFF

LED ON-OFF PATTERNS

Burnout mode
Abnormal operating mode

80 milliseconds

MAINTENANCE

Regular calibration procedure is explained below:

 

CALIBRATION

Warm up the unit for at least 10 minutes.  Apply 0%, 25%, 
50%, 75% and 100% input signal.  Check that the output 
signal for the respective input signal remains within accu-
racy described in the data sheet.  When the output is out of 
tolerance, recalibrate the unit using the PC Configurator 
Software (model: M3SCFG).

LIGHTNING SURGE PROTECTION

M-System offers a series of lightning surge protector for 
protection against induced lightning surges.  Please contact 
M-System to choose appropriate models.

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