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48DV

EM-9313 Rev.6

P. 1 / 5

INSTRUCTION  MANUAL

MODEL

48DV

BARGRAPH INDICATING ALARM

(with 4-digit digital meter)

BEFORE USE ....

Thank you for choosing M-System.  Before use, check the
contents of package you received as outlined below.
If you have any problems or questions on the product, please
contact M-System’s Sales Office or representatives.

■ 

PACKAGE INCLUDES:

Bargraph indicating alarm ......................................... (1)
Instruction manual ..................................................... (1)

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MODEL NO.

Check that model No. described on the specification label is
exactly what you ordered.

■ 

INSTRUCTION MANUAL

This manual describes necessary points of caution when you
use this product, including installation and connection.

POINTS OF CAUTION

■ 

POWER INPUT RATINGS

• Operational range & power consumption: Check the power
rating for the unit on the specification label.

Rating 85 – 132V AC: 85 – 132V, 47 – 63 Hz, approx. 7VA
Rating 170 – 264V AC: 170 – 264V, 47 – 63 Hz, approx. 7VA
Rating 24V DC: 24V 

±

15%, approx. 6W

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INSTALLATION

• A bezel is provided in the pocket inside the package.
Push the bezel in behind the front side of the unit as illus-
trated below.

• When installing the meter into a panel, first remove the
nameplates at the top and bottom of the front panel.  Turn the
screws behind these nameplates clockwise until the retain-
ing clips come up and are fixed.
Turning the screws counterclockwise loosen the retaining
clips.

• The acrylic front cover and scaleplate can be removed when
you remove the nameplates.

■ 

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 0 to 50

°

C (32

to 122

°

F) with relative humidity within 40 to 80% RH in order

to ensure adequate life span and operation.
• Be sure that the ventilation slits are not covered with
cables, etc.  Leave at least 5 cm (2 in.) both at the top and
bottom of the unit.

■ 

WIRING

• Do not install cables (power supply, 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.

■ 

AND ....

• The unit is designed to function as soon as power is
supplied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data sheet.

COMPONENT IDENTIFICATION

Bezel

Nameplate

Retaining Clip

Nameplate

Acrylic Cover

Scale Plate

Ventilation Slits
at the Top and Bottom

(15 cm min.)

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