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5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201  Fax: +81(6)6659-8510  E-mail: [email protected]

EM-9445-A  Rev.10  P. 1 / 8

INSTRUCTION MANUAL

BARGRAPH INDICATING ALARM

(with 4-digit digital meter; potentiometer input)

MODEL

48NDM

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.
For detailed explanations to operate and program the 
module, please refer to Model 48NDM Operating Manual 
(EM-9445-B), downloadable at M-System’s web site: http://
www.m-system.co.jp.

POINTS OF CAUTION

 

CONFORMITY WITH EU DIRECTIVES  OR UK LEGISLATION

• This equipment is suitable for Pollution Degree 2, Meas-

urement Category II (output, transient voltage 2500V) 
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 con-
form to CE or UKCA requirements.  Failure to observe 
these requirements may invalidate the CE or UKCA con-
formance.

• The actual installation environments such as panel con-

figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated 
in a panel system.  The user may have to review the CE 
or UKCA requirements in regard to the whole system and 
employ additional protective measures to ensure the CE 
or UKCA conformity.

• In order to enable the operator to turn off the power in-

put immediately, install a switch or a circuit breaker ac-
cording 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 – 8VA

  24V DC rating: 24V ±15%, approx. 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 -5 to +55°C     

(23 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 ex-

cessively 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 sepa-
rate.

• 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)

Summary of Contents for 48NDM

Page 1: ...f fect the protection level of this unit when it is integrated in a panel system The user may have to review the CE or UKCA requirements in regard to the whole system and employ additional protective...

Page 2: ...TERED MOUNTING Not conform to degree of protection IP65 1 0 61 5 min USING BEZELS Bezels are used when the unit needs to be adapted to an ex isting panel cutout It is not required when the panel cutou...

Page 3: ...d below the unit for ventilation Bracket TERMINAL CONNECTIONS Connect the unit as in the diagram below or refer to the connection diagram on the side of the unit EXTERNAL DIMENSIONS unit mm inch 75 2...

Page 4: ...BEZEL 2 10 4 41 7 5 30 3 9 15 136 5 5 37 144 5 67 11 4 45 7 5 30 4 9 19 136 5 5 37 144 5 67 8 5 33 10 4 41 7 5 30 136 5 5 37 144 5 67 OPTION F BEZEL 4 CONNECTION DIAGRAM 12 13 14 15 16 12 13 14 15 16...

Page 5: ...lor code 2 orange green green red red red H L 50 40 30 20 10 0 10 20 30 40 50 m3 h mA 100 SET H S P Z L 90 80 70 60 50 40 30 20 10 0 SET ENTER Button H Setpoint Adj Alarm Function Span Adj Setting Dec...

Page 6: ...elay for L Setpoint Increase Decrease Complete Digital Indicator SET L LL M Press at once ON Time Delay for LL Setpoint Increase Decrease Complete Digital Indicator SET LL Z M Press at once Zero Adjus...

Page 7: ...ched to continuous ON state 4 Press UP or DOWN buttons until the bargraph shows 100 and the digital indicator comes to a desired value and press SET DIGITAL INDICATOR SPAN ADJUSTMENT 1 Hold down M for...

Page 8: ...r calibration adjust the output as explained in the following HOW TO CALIBRATE THE OUTPUT INDICATION Use a signal source and measuring instruments of sufficient accuracy level Turn the power supply on...

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