SN INPUT LOOP POWERED ISOLATOR BEFORE USE .... INSTRUCTION MANUAL

SN INPUT LOOP POWERED ISOLATOR BEFORE USE .... INSTRUCTION MANUAL
SN
INSTRUCTION MANUAL
INPUT LOOP POWERED ISOLATOR
SN
MODEL
n FRONT PANEL CONFIGURATIONS
BEFORE USE ....
Thank you for choosing M-System. Before use, check the
package you received as below.
If you have any problems or questions with the product,
please contact M-System's Sales Office or representatives.
Zero Adj.
Span Adj.
Zero Adj.
n PACKAGE INCLUDES:
Signal conditioner (body + base socket)...................(1)
Span Adj.
COMPONENT IDENTIFICATION
Body
Base Socket
Connection Diagram
Front Cover
Specifications
n HOW TO OPEN THE FRONT COVER:
Position your finger on the hook at the top of front cover
and pull.
Ch.2
Front Cover (open)
n MODEL NO.
Confirm that the model number described on the product is
exactly what you ordered.
n INSTRUCTION MANUAL
This manual describes necessary points of caution when you
use this product, installation, connection and basic maintenance procedures.
Ch.1
INSTALLATION
Detach the yellow clamps located at the top and bottom of the
unit for separating the body from the base socket.
n 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 screwdriver
(–) and pull.
Clamp
(top & bottom)
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor
n WALL MOUNTING
Refer to the drawings in the Shape and size of the base socket
are slightly different with various
following page.
socket types.
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram label on top of the unit.
Ch 1. INPUT
The shape of base socket may be different
for some models.
Ch 2. INPUT
+ 3
1 +
– 4
2 –
+ 5
7 +
– 6
8 –
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
Ch 1. OUTPUT
Ch 2. OUTPUT
EM-1314 Rev.9
P. 1 / 2
SN
CHECKING
1) Terminal wiring: Check that all cables are correctly connected according to the connection diagram.
2) Input: Check current with an ammeter. Be sure that the
connected transmitter allows the load shown in the following
table.
MODEL
SN-2A6
SN-2H6
SN-2AA
SN-2HA
EQUIVALENT INPUT IMPEDANCE
250Ω
100Ω
230Ω plus output load
90Ω plus output load × 0.16
3) Output: Check that output load is within the permissible
limit shown in the following table.
MODEL
SN-2A6
SN-2H6
SN-2AA
SN-2HA
LOAD RESISTANCE
50kΩ or more
50kΩ or more
50 – 350Ω
50 – 600Ω
n ENVIRONMENT
• Indoor use.
• When heavy dust or metal particles are present in the
air, install the unit inside proper housing and ventilate it.
• Do not install the unit where it is subjected to continuous
vibration. Do not apply physical impact to the unit.
• Environmental temperature must be within -5 to +60°C
(23 to 140°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
n WIRING
• Do not install cables (input and output) 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.
ADJUSTMENT PROCEDURE
This unit is calibrated at the factory to meet the ordered specifications, therefore you usually do not need any calibration.
For matching the signal to a receiving instrument or in case
of regular calibration, adjust the output as explained in the
following.
n HOW TO CALIBRATE THE OUTPUT SIGNAL
Use a signal source and measuring instruments of sufficient
accuracy level. Turn the input signal 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 procedure
1) – 3).
EXTERNAL DIMENSIONS
n GENERAL
• Before you remove the unit from its base socket or mount
it, turn off the input signal for safety.
n AND ....
• The unit is designed to function as soon as input signal is
supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data sheet.
MAINTENANCE
Regular calibration procedure is explained below:
n 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 according to the "ADJUSTMENT
PROCEDURE" explained earlier.
mm (inch)
CLAMP
(top & bottom)
20
(.79)
7.8 (.31)
80 (3.15)
35.4 (1.39)
DIN RAIL
35mm wide
50 (1.97)
127 (5)
5
4
3
7
8
1
2
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
8–M3.5
SCREW
107 (4.21)
6
80 (3.15)
POINTS OF CAUTION
[3.3 (.13)]
40 (1.57)
50 (1.97)
• When mounting, no extra space is needed between units.
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-1314 Rev.9
P. 2 / 2
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