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M-system 10VS4 Instruction Manual page 2

4-output isolator

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TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the side of the terminal cover.
■ EXTERNAL DIMENSIONS unit: mm (inch)
2–4.3 (.17) dia.
■ CONNECTION DIAGRAM
+
1
INPUT
2
WIRING INSTRUCTIONS
■ SCREW TERMINAL
Torque: 0.8 N·m
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage supplied to the rack
(model: 10BXx). For the DC power source, be sure that
the ripple level is within 10% p-p.
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.
MG CO., LTD. www.mgco.jp
5-2-55 Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
8 (.31)
MTG HOLE
1
2
3
4
5
6
7
8
9 10 11
12 13 14 15
26 (1.02)
50 (1.97)
14
+
OUTPUT 1
15
5
+
OUTPUT 2
6
8
+
OUTPUT 3
9
10
+
OUTPUT 4
11
OUTPUT 2
POWER
15–M3.5 SCREW
TERMINAL COVER
3 (.12)
51 (2.01)
130 (5.12)
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.
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
We offer a series of lightning surge protector for protec-
tion against induced lightning surges. Please contact us to
choose appropriate models.
10VS4
EM-0886 Rev.5 P. 2 / 2

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