M-system 40LV 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-9531 Rev.4 P. 1 / 4

INSTRUCTION MANUAL

DC INPUT DIGITAL PANEL METER

(3 1/2 digit, without scaling) MODEL 40LV

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:

Digital panel meter (body + mounting bracket × 2)..........(1)

Engineering unit sticker label sheet..................................(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

■CONFORMITY WITH EU DIRECTIVES

•The equipment must be installed such that appropriate

clearance and creepage distances are maintained to con-

form to CE requirements. Failure to observe these re-

quirements may invalidate the CE conformance.

■POWER INPUT RATING & OPERATIONAL RANGE

•Locate the power input rating marked on the product and

conﬁrm its operational range as indicated below:

24V DC rating: 24V ±20%, approx. 0.5W

■GENERAL PRECAUTIONS

•Before you remove the unit or mount it, turn off the power

supply and input signal for safety.

•Be sure to put the terminal cover on while the power is

supplied.

■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 0 to 55°C (32

to 131°F) with relative humidity within 30 to 90% RH in

order to ensure adequate life span and operation.

•Be sure that the ventilation slits are not covered with ca-

bles, etc.

■WIRING

•Make sure for safety that only qualiﬁed personnel per-

form the wiring.

•Do not install cables close to noise sources (high frequen-

cy 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.

40LV

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-9531 Rev.4 P. 2 / 4

COMPONENT IDENTIFICATION

Specifications

■TOP VIEW

■FRONT VIEW ■SIDE VIEW

Mounting Bracket

Sticker Label

Digital Display

■HOW TO REMOVE THE FRONT PANEL AT SPAN CALIBRATION

Hold up the front panel and remove it from downside.

• View without the front panel Span calibration

adjuster

■HOW TO MOUNT THE FRONT PANEL

1) Insert the front panel hook into the case upside slots of

the unit.

2) Push the front panel hook into the case downside slots of

the unit.

INSTALLATION

+ 0.8

– 0

+ 0.6

– 0

min. 120

min. 75

Panel thickness: 1.6 to 8.0 mm

■PANEL CUTOUT unit: mm

■HOW TO MOUNT THE UNIT ON A PANEL

1) Insert the unit into the panel cutout.

2) Push the mounting brackets into the grooves on both

sides of the rear module, until they hit the panel’s rear

side.

Panel Mounting Bracket

40LV

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-9531 Rev.4 P. 3 / 4

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)

92 (3.62)

45 (1.77)

85 (3.35)11

(.43)

96 (3.78)

48 (1.89)

103 (4.06)

10–M3 SCREW

TERMINALS

■TOP VIEW

■FRONT VIEW ■SIDE VIEW

■REAR VIEW

12345678910

6.4 (.25)

12 (.47)

4 (.16)

■CONNECTION DIAGRAM

COM

HOLD

DP3

DP2

DP1

–

POWER

INPUT

DECIMAL POINT

POSITION

WIRING INSTRUCTIONS

■SCREW TERMINAL

Torque: 0.6 N·m

■SOLDERLESS TERMINAL

Refer to the drawing below for recommended ring tongue

terminal size. Spade tongue type is also applicable.

Applicable wire size: 0.25 to 1.65 mm2(AWG 22 to 16)

Recommended manufacturer: Japan Solderless Terminal

MFG.Co.Ltd, Nichifu Co.,ltd

6 (.24) max

3.3 (.13) max

mm (inch)

40LV

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-9531 Rev.4 P. 4 / 4

DECIMAL POINT POSITION

Close across the terminals as following.

Use a short-circuit bar or a short wire.

DP1 (×101) LED ON Terminal 7 to 3

DP2 (×102) LED ON Terminal 6 to 3

DP3 (×103) LED ON Terminal 5 to 3

103102101

DP3 DP1

100

DP2

DISPLAY HOLD COMMAND

Connect the contacts across HOLD to COM.

HOLD

Twisted pair cable

Relay

Photo-Coupler

COM

HOLD

COM

HOLD

(a) Photo-Coupler

(b) Relay

MAINTENANCE

Regular calibration procedure is explained below:

■CALIBRATION

1) Turn on the power supply on the unit and keep on sup-

plying the voltage for 10 minutes or more.

2) Remove the front panel.

3) Make a line between terminals 1 to 2 short-circuited and

conﬁrm that the display becomes “000.”

4) Connect a signal generator to the unit, adjust the signal

to the values in the following table and conﬁrm the dis-

plays.

MODEL SIGNAL VALUE DISPLAY VALUE

40LV-V1-R 199.0 mV 1990

40LV-V2-R 1.990 V 1990

40LV-V3-R 19.90 V 1990

40LV-V4-R 199.0 V 1990

40LV-A1-R 199.0 µA 1990

40LV-A2-R 1.990 mA 1990

40LV-A3-R 19.90 mA 1990

40LV-A4-R 199.0 mA 1990

40LV-A5-R 1.990 A 1990

5) If the display value is different from the signal value, ad-

just it turning the span adjuster at “1990.”

6) Mount the front panel to the unit again and conﬁrm that

the measurement accuracy is according to the range.

LIGHTNING SURGE PROTECTION

M-System offers a series of lightning surge protectors for

protection against induced lightning surges. Please contact

M-System to choose appropriate models.

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