Moving Coil 240 Long Scale Instruments
| 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. | |