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Moving Iron Ammeters And Voltmeters (Slide I Scale)

DESCRIPTION

Moving Iron Instruments are protected from damage or breakage under adverse condition due to its spring loaded jewel & pivot system. These Instruments are free from external magnetic field influences because of magnetic shielding & are 'CE' certified. These instruments have a very efficient oil damping system, which gives almost a deadbeat movement to the pointer, without irksome oscillation. The movement is light yet sturdy and has a large torque to weight ratio which assures long life to instruments.

These indicate true RMS values practically independent of waveform even of high harmonics. The scale is compressed initially. Readability starts from 10 to 15 degree approximately.

 

FEATURES
• Scale Non-linear.
• Suppression Initial suppression for Voltmeter & End suppression upto 6 times for Ammeter. (on request)
• Scale Colour Special colour scales and marks for different ranges, (on request).
• Housing Engineering plastic.
• Terminal Protection Shrouded terminals to protect from accident, (on request).
• Glass Anti - glare. (on request)

 

ELECTRICAL SPECIFICATIONS
• TYPE Moving Iron Slide In Scale.
• OPERATING VOLTAGE 
(For Voltmeter) 
Burden		 15V to 600V. 
100V / 110V for PT secondary.
15V to 30V - <100mA, 50V to 100V - < 30mA, 110V to 200V - <15mA, 
200V to 600V - <7.5mA.
• OPERATING CURRENT 
(For Ammeter)
Burden		 1 A to100A in 72x72, 1A to 200A in 96x96 
1A / 5A for CT secondary.
0.25A to 30A - < 1VA, Above 30A - < 1.5 VA.
• FREQUENCY 45 ~ 65Hz. (400Hz. on request).
• ACCURACY Class 1.5
• DIELECTRIC TEST 2kV RMS or 1 minute.
• OVERLOAD CONTINUOUS 1.2 times
• OVERLOAD SHORT TIME 2 times VN / 10 times IN for 5 seconds.
• OPERATING TEMP. -10°C to 55°C
• STORAGE TEMP. -20°C to 70°C
• HUMIDITY upto 95% RH
• CONFORMS TO I.S. 1248 / I.E.C. 60051 (Part 2).

 

MECHANICAL SPECIFICATIONS
MODEL SMI 72 (Slide in) SMI 96 (Slide in)
SIZE ( mm ) 72 x 72 x 60 96 x 96 x 60
PANEL CUTOUT ( mm ) 68 x 68 +0.7 92 x 92 +0.8
SCALE LENGTH ( Appro. mm ) 60 90
WEIGHT ( Appro. gms. ) <145 For 72 SQ Amps 
<180 For 72 SQ Volts		 <200 For 96 SQ Amps
<230 For 96 SQ Volts

 

Note : METERS ARE ALSO AVAILABLE IN 48x48x45 (SMI 48) & 144x144x60 (SMI 144) IN NON SLIDE IN DIAL VERSION.

 

MODEL SMI 48 SMI 144
SIZE (mm) 48 x 48 x 45 144 x 144 x 50
PANEL CUTOUT (mm) 45 x 45 +0.6 138 x 138 +1.0
SCALE LENGTH (Appro. mm.) 40 145
WEIGHT (Appro. gms.) 100 400

 

Ordering information
1) Type 2) Model 3) Operating Voltage & PTR Voltmeter 4) Operating Current & CTR For Ammeter.
 
 
Contact Us Enquire Now

AUTOMATIC ELECTRIC LTD.

Address: Rectifier House 570, Naigaum Cross Road
Wadala, Mumbai-400031 (Maharashtra)

E-mail: Send E-Mail

Web: www.goldenpages.in/aelindia

Site Designed & Maintained by Aman Infotech
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