M-system 48NAVD Instruction Manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-9440 Rev.6 P. 1 / 8

INSTRUCTION MANUAL

BARGRAPH INDICATING ALARM

(with 2-wire transmitter excitation)

MODEL

48NAVD

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:

Bargraph indicator (incl. scale plate) .................................(1)

Mounting bracket ................................................................(2)

Bezel*

1

..................................................................................(2)

Watertight packing .............................................................(1)

*1. The size of included bezel differs depending on option code.

■ 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

•This equipment is suitable for Pollution Degree 2 and In­stallation Category II (transient voltage 2500V). Rein­forced insulation (signal input to output to power input:
300V) is maintained. Prior to installation, check that the
insulation class of this unit satisfies the system require­ments.

•The equipment must be mounted on a panel surface.
Once mounted on a panel, take appropriate precautions
to prevent operators to be exposed to the terminal block.

•Altitude up to 2000 meters.

•Insert a noise filter for the power source connected to the

unit. TDK-Lambda Noise Filter Model RSAN-2006 or
equivalent is recommended.

•The equipment must be installed such that appropriate
clearance and creepage distances are maintained to con­form to CE requirements. Failure to observe these re­quirements may invalidate the CE conformance.

•The actual installation environments such as panel con­figurations, connected devices, connected wires, may affect
the protection level of this unit when it is integrated in a
panel system. The user may have to review the CE re­quirements in regard to the whole system and employ ad­ditional protective measures to ensure the CE conformity.

•In order to enable the operator to turn off the power in­put immediately, install a switch or a circuit breaker ac­cording to the relevant requirements in IEC 60947-2 and
properly indicate it.

■ POWER INPUT RATING & OPERATIONAL RANGE

•Locate the power input rating marked on the product and
confirm its operational range as indicated below:

100 – 240V and 85 – 264V AC rating: 85 – 264V, 50/60 Hz,
approx. 5.5 – 8.5VA
24V DC rating: 24V ±15%, approx. 3 – 3.5W

■ 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.

•If the unit’s environmental protection is compromised

(e.g. when multiple units are to be mounted side by side)
when heavy dust or metal particles are present in the air,
install them inside an enclosure with a proper 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 -10 to +55°C
(14 to 131°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.

■ REQUIREMENTS TO ENSURE IP65

•Observe the designated panel cutout size (31.5 × 138 mm).

•Single mounting only. IP65 is not ensured when the units

are clustered side by side.

•The watertight packing included in the product package
must be placed behind the front cover.

•The mounting bracket must be fastened tightly until they
hit the panel.

•Confirm visually that the packing is not contorted or ex­cessively run off the edge after installation.

■ 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.

■ TERMINAL BLOCK

•The terminal block is separable in two pieces. Loosen two
screws on top and bottom of the terminal block to separate.

•Be sure to turn off the power supply, input signal and
power supply to the output relays before separating the
terminal block.

Terminal Block

Separable

Terminal Block Screw
(top & bottom)

■ 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.

48NAVD

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-9440 Rev.6 P. 2 / 8

COMPONENT IDENTIFICATION

50

40

30

20

10

0

10

20

30

40

50
m

3

/h %

100

SET

H

S

•

Z

L

90

80

70

60

50

40

30

20

10

0

M

Brackets

Body

A

Scale Plate

Pull up the part ‘A’ when replacing the scale plate.

INSTALLATION

■ PANEL CUTOUT unit: mm

138

+1
–0

164 min.

Note 1: Observe at the minimum of 3 cm above and below the units for heat dissipation.
Note 2: No bezel is needed when the panel is cut according to the above drawings.

Panel thickness: 1.6 – 8.0 mm

Panel thickness: 1.6 – 8.0 mm

• Vertical Mounting • Horizontal Mounting

■ SINGLE MOUNTING (Conform to degree of protection IP65)

138

+1
–0

138

+1

–0

L

138

+1
–0

164 min.

L

Panel thickness: 1.6 – 8.0 mm

L = {31.5 + 36 × (N –1)}
(N : number of units)

Panel thickness: 1.6 – 8.0 mm

L = {31.5 + 36 × (N –1)}
(N : number of units)

+1
–0

+1
–0

• Vertical Mounting • Horizontal Mounting

■ CLUSTERED MOUNTING (Not conform to degree of protection IP65)

138

+1
–0

31.5

+1

–0

138

+1

–0

61.5 min.

31.5

+1
–0

48NAVD

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]

EM-9440 Rev.6 P. 3 / 8

■ USING BEZELS

Bezels are used when the unit needs to be adapted to an ex­isting panel cutout. It is not required when the panel cutout
size is as specified in the unit’s data sheet (31.5 × 138 mm).
Three types of bezels are selectable when ordering.
Standard type: Fits into M-System’s 48 Series’ panel
cutout (38 × 139.5 mm)
Option /D type: Fits into DIN panel cutout
(33 × 138 mm)
Option /F type: Fits into Fuji Electric PAJ, PAK, PBA,
etc, panel cutout (44 × 138 mm)
Slide the top and bottom parts of the bezel into the back of
the front cover as shown below.

Bezel

When multiple units are to be clustered side by side, insert
one bezel between two units as shown below.

• When mounting two or more indicators side by side:

■ HOW TO MOUNT THE UNIT ON A PANEL

1) Insert the unit into the panel cutout. The watertight
packing must be in place to hold the unit. Do not remove
it even when the protection is not required.

The IP65 front cover protection is effective only with sin-

gle mounting, with the designated cutout size (31.5 ×138
mm).

Panel

Watertight Packing

2)

Push the mounting brackets into the grooves on top and bot­tom of the rear module, until they hit the panel’s rear side.

Leave at least 3 centimeters both above and below the

unit for ventilation.

Bracket