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

SN

INSTRUCTION MANUAL

INPUT LOOP POWERED ISOLATOR

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.

n PACKAGE INCLUDES:

Signal conditioner (body + base socket) ..................(1) 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.

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.

SN

Zero Adj.

Span Adj.

Ch.1

Zero Adj.

Ch.2

Span Adj.

Front Cover (open)

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 following page.

Shape and size of the base socket are slightly different with various socket types.

TERMINAL CONNECTIONS

Connect the unit as in the diagram below or refer to the connection diagram label on top of the unit.

The shape of base socket may be different for some models.

Ch 1. INPUT

Ch 2. INPUT

+ 3

– 4

+ 5

– 6

1 +

2 –

7 +

8 –

Ch 1. OUTPUT

Ch 2. OUTPUT

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

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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

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).

SN

POINTS OF CAUTION

n GENERAL

• Before you remove the unit from its base socket or mount it, turn off the input signal for safety.

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.

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.

EXTERNAL DIMENSIONS mm (inch)

20 (.79)

CLAMP

(top & bottom)

DIN RAIL

35mm wide

6 5

7.8 (.31)

4 3

50 (1.97) 107 (4.21)

127 (5)

2–4.5 (.18) dia.

MTG HOLE

15 (.59) deep

8–M3.5

SCREW

7 8 1 2

40 (1.57)

50 (1.97) [3.3 (.13)]

• 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