M-system W5LCS Manual de usuario

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-8508 Rev.2 P. 1 / 3

INSTRUCTION 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 ...............................................................(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:

85 – 264V AC rating: 85 – 264V, 47 – 66 Hz,

approx. 4 – 6VA

24V DC rating: 24V ±10%, approx. 3W

11 – 27V DC rating: 11 – 27V, approx. 3W

110V DC rating: 85 – 150V, approx. 3W

■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 -5 to +55°C

(23 to 131°F) with relative humidity within 0 to 90% RH

in order to ensure adequate life span and operation.

■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

• Output 2

Span Adj.

Zero Adj.

• Output 1

Span Adj.

Zero Adj.

Body

Specifications

INSTALLATION

Set the unit so that its DIN rail adapter is at the bottom.

■MOUNTING THE UNIT ON A DIN RAIL

A)Hang the upper hook at the rear side of unit on the DIN

rail.

B)Push in the lower in keeping pressing the unit to the DIN

rail.

DIN Rail

■REMOVING THE UNIT

A)Push down the DIN rail adaptor using a minus screw-

driver.

B)Pull out the lower part of the unit.

C)Remove the upper part from the DIN rail.

Spring Loaded

DIN Rail Adaptor

STRAIN GAUGE TRANSMITTER MODEL W5LCS

W5LCS

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-8508 Rev.2 P. 2 / 3

TERMINAL CONNECTIONS

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

■EXTERNAL DIMENSIONS unit: mm (inch)

54321

1110

9876

94 (3.70)

45 (1.77) 41 (1.61) [3.3 (.13)]

• When mounting, no extra space is needed between units.

DIN RAIL

35mm wide

5–M3.5 SCREW

7.4 (.29)

6–M3 SCREW

6 (.24)

3 (.12)

■CONNECTION DIAGRAM

U(+)

V(–)

POWER

–

OUTPUT 1

–

OUTPUT 2

The section enclosed by broken line is only with

2nd output option.

DO NOT connect to the terminal 1.

STRAIN

GAUGE

–

WIRING INSTRUCTIONS

■M3 Screw (output, power input)

Torque: 0.8 N∙m

■M3.5 Screw (input)

Torque: 0.8 N∙m

W5LCS

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-8508 Rev.2 P. 3 / 3

CHECKING

1) Terminal wiring: Check that all cables are correctly con-

nected according to the connection diagram.

2) Power input voltage: Check voltage across the terminal

10 – 11 with a multimeter.

3) Strain gauge: Check the bridge resistance. The maxi-

mum current supplied to the strain gauge is 45 mA.

4) Input: With the maximum load applied, check that volt-

age across the terminals 4 (+) – 5 (–) equals [Exc. × Strain

Gauge Sensitivity].

5) 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.

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).

5) Go through the same procedure for the output 2.

Calibration for the output 1 affects the output 2. Check

the output 2 whenever the output 1 is adjusted.

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.

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