M-system 6LC Bedienungsanleitung

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)

(Option) DIN rail mounting plate (model: A-31) .........(1 set)

(Option) Spring clip (model: A-02)................................(1 set)

■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

■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 +70°C

(23 to 158°F) with relative humidity within 30 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

Specifications

Knurled Knob

Body

Knurled Knob

Connection Diagram

(Top)

INSTALLATION

■35-mm DIN RAIL MOUNTING PLATE A-31 (optional) unit: mm (inch)

1) Attach the unit to the DIN rail mounting plate with

screws included in the package.

2) Set the plate so that its DIN rail adapter is at the bottom.

Hang the upper hook at the rear side on the DIN rail

and push in the lower. When removing the plate, push

down the DIN rail adapter utilizing minus screwdriver

and pull.

80 (3.15) MIN.

■SPRING CLIP A-02 (optional)

1) Remove the two ﬂat-

head screws Alocated at

the bottom as shown to

the right.

2) Set Spring Clip Bon

the mounting hole and

tighten it as shown to

the right with a binding

screw Cincluded in the

package.

3) Check that the clips

contract and release

smoothly.

STRAIN GAUGE TRANSMITTER MODEL 6LC

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-4235 Rev.4 P. 1 / 2

INSTRUCTION MANUAL

TERMINAL CONNECTIONS

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

■EXTERNAL DIMENSIONS unit: mm (inch)

76 (2.99) dia. 40 (1.57)

52.5 (2.07)

1 (.04)

60.9 (2.40)

46 (1.81)

50 (1.97)

4–M3 (.12) TAP

6 (.24) deep

1 2 3 4

5 6

■CONNECTION DIAGRAM

–

STRAIN

GAUGE +

–

LOAD

OUTPUT

24V DC

4 – 20mA DC

INPUT

EXC.

WIRING INSTRUCTIONS

■SCREW TERMINAL

Torque: 0.6 N·m

CHECKING

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

nected according to the connection diagram.

2) Strain gauge: Nominal bridge resistance of strain gauges

that can be connected to the unit is 350 Ω or greater.

3) Input: Check that the input signal is within 0 – 100% of

the full-scale. When applying maximum load, check that

voltage equals Exc. × Strain Gauge Sensitivity.

4) Output: Check that the load is within the permissible

limit including wiring resistance.

Load Resistance (Ω) = Supply Voltage (V) – 13 (V)

0.02 (A)

(including leadwire resistance)

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. Zero and Span adjustments are located behind

the top cover. Release the knurled knobs and open the cover.

1234

VR1 VR2

■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% with the

VR1.

2) SPAN: Apply 100% input and adjust output to 100% with

the VR2.

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.

6LC

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-4235 Rev.4 P. 2 / 2

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