M-system M3SXT User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-7702 Rev.3 P. 1 / 3
INSTRUCTION MANUAL
THERMOCOUPLE TRANSMITTER
(PC programmable) MODEL M3SXT
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 ...............................................................(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.
The M3SXT is programmable using the PC Configurator
Software. For detailed information on the PC configuration,
refer to the M3SCFG users manual. The M3SCFG PC Con-
figurator Software is downloadable at M-System’s web site:
http://www.m-system.co.jp.
POINTS OF CAUTION
■CONFORMITY WITH EU DIRECTIVES
•This equipment is suitable for Pollution Degree 2 and In-
stallation Category II (transient voltage 2500V). Rein-
forced insulation (signal input or output to power input:
300V) and basic insulation (signal input to output: 300V)
are maintained. Prior to installation, check that the insu-
lation class of this unit satisfies the system requirements.
•Altitude up to 2000 meters.
•The equipment must be mounted inside a panel.
•Insert noise filters for the power source, input and output
connected to the unit. COSEL Model NAC-04-472, TDK
Model ZCAT 3035-1330 or equivalent is recommended.
•The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con-
form to CE requirements. Failure to observe these re-
quirements may invalidate the CE conformance.
•The actual installation environments such as panel con-
figurations, connected devices, connected wires, may af-
fect 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 conform-
ity.
•Install lightning surge protectors for those wires connect-
ed to remote locations.
■POWER INPUT RATING & OPERATIONAL RANGE
•Locate the power input rating marked on the product and
confirm its operational range as indicated below:
100 – 240V AC rating: 90 – 264V, 47 – 66 Hz, approx. 2 – 4VA
24V DC rating: 24V ±10%, approx. 0.5W
24 – 240V DC rating: 21.6 – 264V, approx. 1W
■GENERAL PRECAUTIONS
•Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
•Pulling the front part of the unit forcibly may separate
the front housing from the body housing. Touching ex-
posed internal power/input terminals may cause an elec-
tric shock if the unit is powered.
■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 -10 to +55°C
(14 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
•Be sure that the ventilation slits are not covered with ca-
bles, etc.
■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 sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
•With voltage output, do not leave the output terminals
shortcircuited for a long time. The unit is designed to
endure it without breakdown, however, it may shorten ap-
propriate life duration.

M3SXT
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-7702 Rev.3 P. 2 / 3
COMPONENT IDENTIFICATION
Front Cover
Front Housing
Body
Specifications
(side)
■HOW TO SEPARATE THE TERMINAL BLOCKS
When you need to separate the terminal blocks from the
transmitter body for wiring, insert a minus driver between
the terminal block and the housing body, pull up the driver
and pull out the terminal block.
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. When removing the unit,
push down the DIN rail adaptor utilizing a minus screw-
driver and pull.
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the side of the unit.
■EXTERNAL DIMENSIONS unit: mm (inch)
78
56
12
34
106 (4.17)
12
(.47)
110.5 (4.35)
62 (2.44)
[5 (.20)]
• When mounting, no extra space is needed between units.
DIN RAIL
35mm wide

M3SXT
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-7702 Rev.3 P. 3 / 3
■CONNECTION DIAGRAM
+
–
OUTPUT
5
6
7
8
1
2
CONFIGURATOR JACK
+
–
T/C
comp. leadwire
+
–
U(+)
V(–)
POWER
■WIRING INSTRUCTIONS
 •Applicablewiresize
Solid: 0.2 to 2.5 mm2(0.55 to 1.75 dia.)
Stranded: 0.2 to 2.5 mm2
Tinning wire ends may cause contact failure
and therefore is not recommended.
Ferruled: 0.2 to 1.5 mm2(0.55 to 1.35 dia.)
The following Phoenix Contact terminals are
recommended:
AI 0,25-8YE 0.2 to 0.25 mm2
AI 0,34-8TQ 0.25 to 0.34 mm2
AI 0,5-8WH 0.34 to 0.5 mm2
AI 0,75-8GY 0.5 to 0.75 mm2
AI 1,0-8RD 0.75 to 1.0 mm2
AI 1,5-8BK 1.0 to 1.5 mm2
 •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
12
34
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
12345678
0 – 20mA*1ON 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
12345678
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 thermocouple or its extension wires are broken, the
output goes over 100% (below 0% with downscale protec-
tion) due to the burnout function. Confirm the status in-
dicator 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.