M-system MXT Instruction Manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-1712 Rev.4 P. 1 / 4

INSTRUCTION MANUAL

THERMOCOUPLE TRANSMITTER

(front congurable)

MODEL

MXT

BEFORE USE ....

Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.

■ PACKAGE INCLUDES:

Signal conditioner (body + base socket + CJC sensor)

.... (1)

■ MODEL NO.

Confirm Model No. marking on the product to be exactly
what you ordered.

■ INSTRUCTION MANUAL

This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.

POINTS OF CAUTION

■ CONFORMITY WITH EU DIRECTIVES

• This equipment is suitable for Pollution Degree 2 and In­stallation Category II. Basic insulation (signal input to
output: 300V) is maintained. Prior to installation, check
that the insulation class of this unit satisfies the system
requirements.

• Altitude up to 2000 meters.

• The equipment must be mounted inside a panel.

• Insert a noise filter for the power source connected to the

unit. TDK-Lambda Noise Filter Model RSAN-2006 or
equivalent is recommended.

• The actual installation environments such as panel con­figurations, connected devices and 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 CE conformity.

■ POWER INPUT RATING & OPERATIONAL RANGE

• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
Rating 100 – 240V AC: 85 – 264V, 47 – 66 Hz,

Approx. 3VA at 100V AC
Approx. 5VA at 200V AC
Approx. 6VA at 264V AC
Rating 24V DC: 24V ±10%, approx. 3.5W
Rating 110V DC: 85 – 150V, approx. 3.5W

■ GENERAL PRECAUTIONS

• Before you remove the unit from its base socket or mount
it, turn off the power supply and input signal for safety.

■ ENVIRONMENT

• Indoor use.

• When heavy dust or metal particles are present in the

air, install the unit inside proper housing with sufficient
ventilation.

• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.

• Environmental temperature must be within -5 to +55°C
(23 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.

■ WIRING

• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).

• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.

■ AND ....

• 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.

COMPONENT IDENTIFICATION

Connection Diagram

Body

Specifications

Base Socket

INSTALLATION

Detach the yellow clamps located at the top and bottom of
the unit to separate the body from the base socket.

■ DIN RAIL MOUNTING

Set the base socket so that its
DIN rail adaptor is at the bot­tom. Position the upper hook
at the rear side of base socket
on the DIN rail and push in
the lower. When removing
the socket, push down the
DIN rail adaptor utilizing a
minus screwdriver and pull.

■ WALL MOUNTING

Refer to “EXTERNAL DI­MENSIONS.”

CJC

Sensor

Clamp

(top & bottom)

DIN Rail

35mm wide

Spring Loaded

DIN Rail Adaptor

Shape and size of the base socket
are slightly different with various
socket types.

MXT

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-1712 Rev.4 P. 2 / 4

FRONT VIEW & PROGRAMMING

■ PROGRAMMING PROCEDURE

1) Press ITEM UP or DOWN key until ITEM display indicates “01”.

2) Press DATA UP or DOWN key and choose “2” on DATA display.
1: Data indication only.
2: All parameters are modifiable.

3) Press ITEM UP or DOWN key until ITEM display shows the

ITEM No. you need to change.

4) Press DATA UP or DOWN key and choose a DATA No. or value

you need on DATA display.

5) Repeat above 3 and 4. (Entered data is stored 1 sec. after the

operation has been complete.)

6) Press ITEM UP or DOWN key until ITEM display indicates “01”.

7) Press DATA UP or DOWN key and choose “1” on the display.

8) Press ITEM UP or DOWN key until ITEM display indicates “P”.

DATA display shows process input. You can now check data set­ting by choosing ITEM No.

Note : DO NOT press UP and DOWN keys simultaneously.

ITEM

MDF.

CODE

DATA CONTENTS DEFAULT

P N/A -9999 – 9999 Input display in engineering unit *

1

---

01 1, 2, 3 Modification code 1 : Data indication only.

2 : All parameters are modifiable.
3 : Only ITEM 19 is modifiable.

1

02 N/A 0 – 99 Status indication (“0” is normally indicated.) ---

03 2 0 – 12 Thermocouple type

0: (PR), 1: K (CA), 2: E (CRC), 3: J (IC), 4: T (CC), 5: B (RH),
6: R, 7: S, 8: C (WRe 5-26), 9: N, 10: U, 11: L, 12: P (Platinel II)

1: K (CA)

04 N/A 0, 1, 2 Output range code 0 : V1 (-1 – +1V)

1 : V2 (-10 – +10V)
2 : Z1 (0 – 20mA)

V1 : 0
V2 : 1
Z1 : 2

05 N/A -15.0 – 115.0 Input indicated in % (of the range set in ITEM 13/14) ---

06/L 2 -15.0 – 115.0 Output indicated in % with ITEM 01 DATA 1 (of the range set in ITEM 15/16)

Loop test output with ITEM 01 DATA 2 (‘L’ is indicated as ITEM No.)
(Use DATA UP/DOWN key to set the output signal.)

---

07 2 -99.99 – 99.99 Zero adjustment (%) (fine adj. of the value set in ITEM 15) 0.00

08 2 0.000 – 9.999 Gain adjustment (fine adj. of the value set in ITEM 16) 1.000

09 2 0, 1, 2 Temperature unit 0: °C 1: °F 2: K 0

10 2 0, 1, 2, 3, 4 Moving average (sampling cycle: 10 msec.)

0: No 1: 4 samples 2: 8 samples 3: 16 samples 4: 32 samples

0

11 2 0, 1 – 60 Power-saving mode 0 : Continuous display

1 – 60 : Time before display turned off (minutes)

10

12 2 0, 1 Burnout protection 0 : Downscale

1 : Upscale

1

13
14

2
2

-270.0 – 2410

-270.0 – 2410

Lower range temperature (ITEM 13 < ITEM 14) *

1

Upper range temperature (ITEM 13 < ITEM 14) *

1

0.0

100.0

15
16

2
2

-1.00 – 1.00

-1.00 – 1.00

Output code V1 0% output voltage (V) *

2

100% output voltage (V) *

2

-1.00

1.00

15
16

2
2

-10.0 – 10.0

-10.0 – 10.0

Output code V2 0% output voltage (V) *

2

100% output voltage (V) *

2

-10.0

10.0

15
16

2
2

0.0 – 20.0

0.0 – 20.0

Output code Z1 0% output current (mA) *

2

100% output current (mA) *

2

4.0

20.0

17 2 0, 1 Output characteristic 0: Positive 1: Negative (inverted output) 0

18 3 0, 1 Reset all settings *

3

0

19 N/A --- ROM version ---

*1 : According to the temperature unit specified in ITEM 09. For under -1000 or over 1000 values, under decimal point position cannot

be displayed and setting is unavailable.
*2 : ITEM 15 < ITEM 16.
*3 : Press DATA UP key and choose DATA 1. Double-click DATA DOWN key. The display shows DATA 0 after the initialization is

complete.

PL4

PL3

PL2

PL1

DATA

ITEM

DATA

ITEM

ITEM No. Display

DATA UP-DOWN Keys

ITEM No. UP-DOWN Keys

DATA Display

Status LED

Polarity LED

MXT

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-1712 Rev.4 P. 3 / 4

Programming can be done in the Program Mode. Return the
unit back to Monitor Mode other than for programming. Turn­ing the power supply off in the Program Mode may not save
modied settings.

■ SELECTING THERMOCOUPLE TYPE

[E.G.] J thermocouple

1) Program Mode
Set ITEM 01 – DATA 2 to turn the unit into Program

Mode.

2) Thermocouple Type
Choose ITEM 03 – DATA 3.

3) Monitor Mode
Set ITEM 01 – DATA 1 to turn the unit into Monitor

Mode.

■ SELECTING TEMPERATURE RANGE

[E.G.] -200 to 750°C

1) Turn the unit into Program Mode.

2) 0% Temperature Range
Choose ITEM 13 – DATA -200.0

3) 100% Temperature Range
Choose ITEM 14 – DATA 750.0

4) Turn the unit into Monitor Mode.

Note: Enter the temperature values in the unit specified with
ITEM 09.

■ SELECTING OUTPUT RANGE

[E.G.] -10.0 to 0.0V DC

1) Turn the unit into Program Mode.

2) 0% Output Voltage
Choose ITEM 15 – DATA -10.0.

3) 100% Output Voltage
Choose ITEM 16 – DATA 0.0.

4) Turn the unit into Monitor Mode.

5) Set to ITEM P.

■ BURNOUT

[E.G.] Downscale burnout

1) Turn the unit into Program Mode.

2) Burnout Protection
Choose ITEM 12 – DATA 0.

3) Turn the unit into Monitor Mode.

■ RESET ALL SETTINGS

Returning the unit into the factory-default settings.

1) Turn the unit into Reset Mode.
Set ITEM 01 – DATA 3 to turn the unit into Reset Mode.

2) Call up the Reset menu.
Choose ITEM 18 – DATA 1. (Press DATA UP key.)

3) Resetting Enable
Double-click DATA DOWN key. DATA 0 is displayed af-

ter the initialization is complete.

4) Turn the unit into Monitor Mode.

If necessary, go to Moving Average and other adjustments.
Set the unit to Monitor Mode other than for programming.

■ STATUS LED, PL2

When the PL2 is turned on, identify the device status with
ITEM 02.

REF. S TATU S

12

Burnout: Wire breakdown or invalid overrange
input.
Check T/C wires, T/C type and temperature range.

13

Input range setting: 0% Setting > 100% Setting
See ITEM 13 / 14.

15

Output range setting: 0% Setting > 100% Setting
See ITEM 15 / 16.

99

Memory error: Initialize all the settings of the unit
by operating ITEM 18 and program the unit again.

TERMINAL CONNECTIONS

Connect the unit as in the diagram below or refer to the con­nection diagram on top of the unit.

+

–

3

OUTPUT

1

2

U(+)

V(–)

POWER

7

8

+

–

T/C

CJC

SENSOR

metal leg

comp. leadwire

5

4

+

–

model: CJM

CHECKING

1) Terminal wiring:
Check that all cables are correctly connected according to

the connection diagram.

2) Power input voltage:
Check voltage across the terminal 7 – 8 with a multim-

eter.

3) Input:
Check that the input voltage is within 0 – 100% of full­scale.

If the thermocouple or its extension wires are broken, the

output goes over 100% (below 0% with downscale) due to
the burnout function. Check leadwires in such a case.

4) Output:
Check that the load resistance meets the described specifica­tions.

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 accu­racy described in the data sheet. When the output is out of
tolerance, recalibrate the unit as explained earlier (ITEM
07 and 08).

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.

MXT

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-1712 Rev.4 P. 4 / 4

EXTERNAL DIMENSIONS unit: mm (inch)

3456

2187

80 (3.15)

50 (1.97) 103 (4.06)

123 (4.84) [3.3 (.13)]

80 (3.15)

20

(.79)

40 (1.57)

50 (1.97)

7.8 (.31)

CLAMP
(top & bottom)

DIN RAIL
35mm wide

2–4.5 (.18) dia.

MTG HOLE

15 (.59) deep

8

–

M3.5

SCREW

• When mounting, no extra space is needed between units.

■ TERMINAL ASSIGNMENTS

5

6

2187

3

4

7 (.28)

CJC SENSOR

(model: CJM)