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  9. M-system M8CTC User manual

M-system M8CTC User manual

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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)
Sensor ..................................................................................(1)
Cable (CLSA-08, -12 only) ..................................................(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.
■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
Specifications
Span Adj.
Zero Adj.
Mounting Screw
Body
INSTALLATION
Use Installation Base (model: M8BSx).
■CLAMP-ON CURRENT SENSOR
Secure the sensor to the cable e.g. using tie wraps.
Over-voltage clamp element is incorporated for safety in
open circuit.
CT CONVERTER
(clamp-on current sensor) MODEL M8CTC
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
EM-5483 Rev.1 P. 1 / 4
INSTRUCTION MANUAL
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
■EXTERNAL DIMENSIONS unit: mm (inch)
I/O PINS
17.5 (.69)
48 (1.89)
75 (2.95)
83 (3.27)
■CONNECTION DIAGRAM
+
–
Installation Base
OUTPUT 1
6
7
8
9
10
11
+
–
+
–
OUTPUT 2
POWER
3
4
D
C
LOAD
SOURCE
CONNECTOR*
k
l
CLAMP-ON SENSOR
*Connector provided only for the CLSA-08 and CLSA-12.
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 signal is within 0 – 100% of
the full-scale.
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.
M8CTC
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
EM-5483 Rev.1 P. 2 / 4
CLAMP-ON CURRENT SENSOR
The clamp-on current sensor is included in the product package.
■CLAMP-ON CURRENT SENSOR (leadwire type CLSA)
• 0 – 10A through 0 – 75A Use
Sensor model No.: CLSA-08
Sensor cable model No.: CLSA-08C-30
Applicable cable diameter: Max. 10.0
Sensor leadwire: AWG 22
Weight: 45 g (1.6 oz)
LK
10 (.39)
dia.
41 (1.61)
23 (.91)
27 (1.05)26 (1.02)
150 (5.91) 3000 (118)
l
k
• 0 – 100A Use
Sensor model No.: CLSA-12
Sensor cable model No.: CLSA-08C-30
Applicable cable diameter: Max. 16.0
Sensor leadwire: AWG 22
Weight: 70 g (2.5 oz)
16 (.63)
dia.
44.5 (1.75)
29 (1.14)
30 (1.18)
31 (1.22)
150 (5.91)
l
k
LK
3000 (118)
• 0 – 125A through 0 – 300A Use
Sensor model No.: CLSA-30
Applicable cable diameter: Max. 24.0
Sensor leadwire: AWG 18, 200 mm
Weight: 200 g (7.1 oz)
24 (.94)
dia.
64 (2.52)
47.5 (1.87)
40 (1.57)34 (1.34)
200 (7.87)
4
(.16)
4
(.16)
l
k
KL
• 0 – 350A through 0 – 500A Use
Sensor model No.: CLSA-50
Applicable cable diameter: Max. 36.0
Sensor leadwire: AWG 18, 200 mm
Weight: 300 g (10.6 oz)
36 (1.41)
dia.
80 (3.15)
59.5 (2.34)
50 (1.97)38 (1.50) 4
(.16)
4
(.16)
200 (7.87)
l
k
KL
■CLAMP-ON CURRENT SENSOR (screw terminal type CLSB)
Connection: M3 screw terminal (torque 0.5 N·m)
Screw terminal: Nickel-plated steel
Output wiring: Use AWG 22 or thicker wires for the output.
Twist the paired wires, extendable up to 30 meters.
• 0 – 10A through 0 – 50A Use
Sensor model No.: CLSB-05
Applicable cable diameter: Max. 10.0
Weight: 45 g (1.6 oz)
k
k
l
l
28.9 (1.14)
26.3 (1.04)8.6
(.34)
8.6
(.34)
48 (1.89)
10 dia. (.39)
2–M3 SCREW
TERMINAL COVER
(detachable)
KL
• 0 – 60A through 0 – 100A Use
Sensor model No.: CLSB-10
Applicable cable diameter: Max. 16.0
Weight: 80 g (2.8 oz)
37.4 (1.47)
30.5 (1.20)7.5
(.30)
7.5
(.30)
53.7 (2.11)
16 dia. (.63)
2–M3 SCREW
k
k
l
l
TERMINAL COVER
(detachable)
KL
• 0 – 125A through 0 – 200A Use
Sensor model No.: CLSB-20
Applicable cable diameter: Max. 24.0
Weight: 200 g (7.1 oz)
k
k
l
l
2–M3 SCREW
55.9 (2.20)
35.9
(1.41)
8.3
(.33)
8.3
(.33)
75.7 (2.98)
24 dia. (.94)
TERMINAL COVER
(detachable)
KL
M8CTC
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
EM-5483 Rev.1 P. 3 / 4
• 0 – 225A through 0 – 400A Use
Sensor model No.: CLSB-40
Applicable cable diameter: Max. 35.0
Weight: 300 g (10.6 oz)
35 dia. (1.38)
k
k
l
l
2–M3 SCREW
KL
73.5 (2.89)
35.5
(1.40)
8.8
(.35)
8.8
(.35)
93 (3.66)
TERMINAL COVER
(detachable)
• 0 – 500A through 0 – 600A Use
Sensor model No.: CLSB-60
Applicable cable diameter: Max. 35.0
Weight: 360 g (12.7 oz)
73.5 (2.89)
35.5
(1.40)
8.8
(.35)
8.8
(.35)
93 (3.66)
TERMINAL COVER
(detachable)
35 dia. (1.38)
k
k
l
l
2–M3 SCREW
KL
Note 1: The output values may vary depending on the accuracy
of engagement at the clamp connection.
Note 2: The sensor is detachable up to 100 times (approx.).
Note 3: The sensor’s mechanical construction may cause it to
generate resonance sound. However, it does not affect
the performance of the sensor.
M8CTC
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
EM-5483 Rev.1 P. 4 / 4