Curren t Sensors IA-100, 250, 500,1000, 2000, 3000Open Loop Hall Effect Description The IA 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 • DC current measurement • Traction sensing • Heavy duty housing Measuring Circuit Units IA-100 IA-250 IA-500 IA-1000 IA-2000 IA-3000 Full Scale (FS) dc or ac peak ............ + A 100 250 500 1000 2000 3000 Full Scale output ............................ + V 10 Frequency range ............................ dc (permissible ripple content <200 A rms at 360 Hz) Response time (1) .......................... µ 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 (2) ....................... + %RDG 0.5 Typical zero current offset .............. + mV 10 Maximum zero current offset .......... + mV 50 Maximum hysteresis of offset (3) .... + mV 200 100 50 25 15 15 Minimum load resistance .............. k ohms >2 Influences On Accuracy o Typical offset drift with tem p ........... + 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 (4) ........................... 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 Package ........................................ rugged metal case Aperture opening .......................... in. (mm) 1.67 (42.4) Weight ......................................... Lbs.(grams) 5 Lbs. 10 oz. (2.6 kg) Mounting ..................................... Five mounting holes 0.281 inch (7.1 mm) diameter on steel base plate Output reference ........................... To obtain a positive output on the terminal marked “+Vo”, positive 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 IA - 100, 250, 500, 1000, 2000, and 3000 .281 DIA. 3.00 ( 7.1 ) ( 76.2 ) Mounting Hole (5) 3.50 3.00 ( 88.9 ) ( 76.2 ) 2.50 ( 63.5 ) 4.50 ( 114.3 ) .55 MAX. Label ( 14.0 ) 1.670 DIA. + CURRENT INPUT ( 42.4 ) Aperture 5.50 ( 139.7 ) 2.01 ( 51.1 ) 2.25 ( 57.2 ) Notes: 1. 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. 2. The sensors are calibrated at 80% of Full Scale. 3. Hysteresis specifications given for Full Scale aperture current remnant. 4. 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. 5. 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