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Moving Coil 240 Long Scale Instruments

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DESCRIPTION
Moving coil instruments with circular scale of 240° employ a platinum taut band for suspension of moving coil assembly instead of pivot & jewel system. It is less prone to sluggishness & zero shift due to frictionless movement. 
These meters are basically used for the measurement of DC current & voltage, and can be used with built in rectifier for the measurement of AC current & voltage in the frequency range 45~65Hz. / 400Hz. The meters measure average value. It can be scaled to indicate RMS values (on request).
These instruments are not recommended for non-sinusoidal waveforms of current & voltage. The other indications like Frequency, Power & Power factor can be offered with suitable external transducers. Speed indication is possible if used with AC tacho-generator (not in the scope of AE).

 

FEATURES
• Long scale instruments.

 

ELECTRICAL SPECIFICATIONS
• TYPE MOVING COIL 240°.
• OPERATING VOLTAGE 60mV to 600V.
• OPERATING CURRENT 500µA to 30A & Above 30A with external shunt.
• ACCURACY CLASS 2.5 for SQ48, 1.5 for SQ72 & SQ96, 1.0 for SQ14 4, SQ110.
• DIELECTRIC TEST 2kV RMS for 1 min.
• OPERATING TEMP. -10°C to 55°C
• STORAGE TEMP. -20°C to 70°C
• HUMIDITY Up to 95% RH
• CONFORMS TO I.S. 1248 / I.E.C. 60051 (Part 2)

 

MODEL SQ 48 SQ 72 SQ 96 SQ 144 SQ 110
ACCURACY CLASS 2.5 1.5A 1.0A 1.0A 1.0A
D.C.AMMETER (MIN.) 0-500µA
(MAX.) 0-100mAB 0 - 30AC
D.C.VOLTMETER (MIN.) 0 - 60mV
(MAX.) 0-150mVB 0 - 600V
A.C.AMMETER (MIN.) 0-10mAB 0 - 10mA
(MAX.) 0-30AB 0 - 30A
A.C.VOLTMETER (MIN.) 0-10VB 0 - 10V
(MAX.) 0-600VB 0 - 600V
FREQ. METER POSSIBLEB 40Hz TO 100Hz AT 110V ~ 440V
WATT / VAR METER POSSIBLEB POSSIBLED 1PH, 3PH-2 / 3E :110V~440V,1A/5A POSSIBLEE
VA METER POSSIBLEB POSSIBLED 3PH-2 / 3E : 110V~440V, 1A/5A POSSIBLEE
PF METER POSSIBLEB POSSIBLED 1PH, 3PH-1E : 110V~ 440V, 1A / 5A

 

Note : Range below minimum & above maximum on request if feasible.
A Accuracy Class 0.5 for all Frequency meters, 1.5 for SQ96,SQ144,SQ110, AC Ammeter, 
AC / Ammeter / Voltmeter & Power meter, 2° for all Power Factor meter,
B SQ48 - i) DC / AC Voltmeter, AC Ammeter with external box. ii) Frequency meter, Power meter with external transducer box.
C For higher ranges use AE external shunts. (Refer Data Sheet for Shunts).
D SQ72 - Power & Power factor meter with external transducer box.
E SQ 110-Power meter with external transducer box.

 

MECHANICAL SPECIFICATIONS
MODEL SQ 48 SQ 72 SQ 96 SQ 144 SQ 110
FLANGE (mm) 48 x 48 72 x 72 96 x 96 144 x 144 110 x 110
PANEL CUTOUT(mm) 45 x 45+0.6 68 x 68+0.7 92 x 92+0.8 138 x 138+1.0 100 Ø,
5 Ø, 4 holes
90x90
DEPTH
(mm)          		 DC 55 55 55 60 100
  AC 55 75 75A 60A 100
SCALE LENGTH (mm)(Appro.) 70 - 75 105 -110 150 - 155 225 - 230 175 - 180
WEIGHT 
(gms.)
(Appro.)		 DC 200 250 300 500 450
AC 200 350 400B 600B 650

 

A Depth 100mm for SQ96 & SQ144 Power meter.
B Weight 1.2kg for SQ96 Power meter, 1.5kg for SQ144 Power meter.

 

Ordering information
For all Models 1) Type 2) Model 3) Range
Additional information for 
power and power factor measurments.		 4) frequency 5) Operating Voltage 6) Operating Current 7) PTR 8) CTR.

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* To embrace new technologies and methods. * To give unsurpassed products and services to the clients. * To constantly look for improvement and changes.

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