M-system M8TS User manual

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 + 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
■POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
24V DC rating: 24V ±10%, approx. 30mA
(50mA for current output)
■GENERAL PRECAUTIONS
• Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
■CJC SENSOR
• The CJC Sensor for the single mount base is not compat-
ible with the one for the multiple mount base.
■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 0 to 55°C (32
to 131°F) with relative humidity within 30 to 95% 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.
COMPONENT IDENTIFICATION
Burnout SW
Span Adj.
Zero Adj.
Mounting Screw
Body
Specifications
CJC Sensor
CJC Sensor for
Single Mount Base
■BOTTOM VIEW
DOWN
UP
Burnout Switch
• Burnout Switch
Turn the switch in UP direction for upscale burnout, DOWN
for downscale burnout.
INSTALLATION
Use Installation Base (model: M8BSx).
THERMOCOUPLE CONVERTER MODEL M8TS
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-5462 Rev.4 P. 1 / 2
INSTRUCTION MANUAL

TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
Attach the CJC sensor together with input wiring to the input terminals. The CJC sensor is not interchangeable. Check that
its serial number is identical to that of the unit.
■EXTERNAL DIMENSIONS unit: mm (inch)
I/O PINS
17.5 (.69)
48 (1.89)
75 (2.95)
83 (3.27)
■CONNECTION DIAGRAM
• Mounting on the Installation Base (model: M8BSx)
+
–
Installation Base
OUTPUT 1
6
7
8
9
10
11
+
–
+
–
OUTPUT 2
POWER
3
1
2
4
D
A
B
C
+
–
T / C
CJC
SENSOR
metal leg
model: CJM
comp. leadwire
+
–
green
red
*The CJC Sensor for the single mount base is not compatible
with the one for the multiple mount base.
Leadwires for the multiple mount type are replaced with metal
legs with the single mount type.
*
• Mounting on the Single Mount Base (model: M8BS-1-1)
Refer to the data sheet and the instruction manual for the
M8BS-1-1.
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input: Check the power input voltage.
3) Input: Check that the input voltage is within 0 –100% of
full-scale.
If the thermocouple or its extension wires are broken, the
output goes over 100% (below 0% with downscale) due to
burnout function. Check leadwires in such a case.
4) Output: Check that the load resistance meets the de-
scribed specifications.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered
specifications, therefore you usually do not need any cali-
bration.
For matching the signal to a receiving instrument or in case
of regular calibration, adjust the output as explained in the
following.
■HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the power supply on and warm up for
more than 10 minutes.
(Output 1 and Output 2 are linked.)
1) ZERO: Apply 0% input and adjust output to 0%.
2) SPAN: Apply 100% input and adjust output to 100%.
3) Check ZERO adjustment again with 0% input.
4) When ZERO value is changed, repeat the above proce-
dure 1) – 3).
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 according to the “ADJUST-
MENT PROCEDURE” explained earlier.
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.
M8TS
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-5462 Rev.4 P. 2 / 2