Current Sensors IF-100, 250, 500,1000, 2000, 3000 Open Loop Hall Effect Description The IF Series Hall effect current sensors accurately measure dc and ac currents and provide electrical isolation between the output of the sensor and the current carrying conductor. Features Applications • High accuracy • Motor controllers and drives • Wide frequency range • Battery supplied equipment • Excellent linearity • Switch mode and uninterruptable power supplies • Safety isolation • Welding equipment • AC & DC current measurement • Light duty plastic housing Measuring Circuit Units IF-100 IF-250 IF-500 IF-1000 IF-2000 IF-3000 Full Scale (FS) dc or ac peak ............ + A 100 250 500 1000 2000 3000 Full Scale output ............................ + V 10 AC Bandwidth .... ............................. kHz dc to 1 Response time (1) .......................... m  s <150 Excitation Circuit Supply voltage ............................... + Vdc 15 Max. positive supply current ............ mA 50 Max. negative supply current .......... mA 10 Output Sensitivity ...................................... mV/A 100 40 20 10 5 3.3 Linearity ........................................ + % FS 0.5 0.5 0.5 0.5 0.5 0.6 Calibration point (3) ....................... + %RDG 0.5 Typical zero current offset .............. + mV 10 Maximum zero current offset .......... + mV 50 Maximum hysteresis of offset (4) .... + mV 200 100 50 25 15 15 Minimum load resistance .............. k ohms >2 Influences On Accuracy o Typical of fset drift with temp ........... + mV/ C 1 o Max. offset drift with temp................ + mV/ C 2 ............... Excitation change of + 1 % Max. sensitivity change.................... + % 0.03 o Typical sensitivity drift with temp. ...... + %/ C 0.015 o Max. sensitivity drift with temp......... + %/ C 0.02 Withstand Capabilities Dielectric test (5) ........................... kV 2.5 Output short or open ................... No Damage General Information o Operating temperature range ...... C -30 to +75 o Storage temperature range ........... C -40 to +85 flame retardant plastic case Package ........................................ Aperture opening .......................... in. (mm) 1.67 (42.4) Weight ......................................... Lbs.(grams) 3 Lbs. 6 oz. (1.5 kg) Mounting ..................................... Four through holes 0.193 inch (4.9 mm) diameter Output reference ........................... To obtain a positive output on the terminal marked “ Vo”, positi ve conventional current must flow as per the direction of the arrow marked on the sensor. 6120 Hanging Moss Road • Orlando, Florida 32807 Phone (407) 678-9748 • Fax (407) 677-5765 • www.fwbell.com Rev. date 04/2003 Current Current Current Sensors Sensors Sensors +15V COM -15V +Vo -Vo Mechanical Dimensions All dimensions are in inches (millimeters) Model IF - 100, 250, 500, 1000, 2000, and 3000 2.19 ( 55.6 ) 1.19 ( 30.2 ) 2.38 ( 60.5) Black Thermoplastic Case (NORYL) Label .50 ( 12.7 ) .193 DIA. ( 4.9 ) Mounting Through Hole (4) + CURRENT INPUT 1.670 DIA. ( 42.4 ) Aperture 5.44 ( 138.2 ) 3.00 ( 76.2 ) 1.95 ( 49.5 ) .50 ( 12.7 ) 3.50 .44 ( 88.9 ) ( 11.2 ) 4.38 ( 111.3 ) Notes 1. Consult F.W.Bell if the product aperture current and frequency exceeds 400 ampere-kilohertz. 2. Response time is affected by the output leads and the conductor in the aperture, the proximity of the return conductor and ferrous metals. It is best to test the sensor in the actual environment to obtain representative performance. 3. The sensors are calibrated at 80% of Full Scale. 4. Hysteresis specifications given for Full Scale aperture current remnant. 5. The dielectric test consists of 2.5 kV ac at 60 Hz for one minute between a bare 1.5 inch diameter conductor (loca ted concentrically through the aperture) and the output of the sensor. 6. Due to continuous process improvement, all specifications are subject to change without notice. 6120 Hanging Moss Road • Orlando, Florida 32807 Phone (407) 678-9748 • Fax (407) 677-5765 • www.fwbell.com Rev. date 04/2003