Current Sensors Closed Loop Hall Effect Model CLO-300/500 Description Models CLO-300 and CLO-500 are closed loop Hall effect current sensors that accurately measure DC and AC currents and provide electrical isolation between the current carrying conductor and the output of the sensor. Features Applications • Noncontact measurement of high current • Variable speed drives for motors • Measures DC, AC and impulse currents • Welding Equipment • Current sensing up to 400A peak • Power supply Equipment • Measure and control system • Very fast response and high accuracy • Over current protection • High overload capacity • Protection of power semiconductors • Light duty open frame housing • Solid core with aperture Electrical Specifications CLO-300 CLO-500 Nominal current (I )..................................... 300 A rms 500 A rms N Measuring range......................................... 0 to ± 600 A 0 to ± 1200 A Sense resistor............................................ R. min. R. max. R. min. R. max. with ± 12 V at ±300 A peak ........... 0 ohms 30 ohms n/a n/a at ±600 A peak ........... 0 ohms 5 ohms n/a n/a with ±15V at ±300 A peak ........... 20 ohms 50 ohms n/a n/a at ±500 A peak ........... n/a n/a 0 ohms 50 ohms at ±600 A peak ........... 5 ohms 10 ohms n/a n/a at ±1200 A peak........... n/a n/a 0 ohms 5 ohms with ±18V at ±300 A peak........... 20 ohms 70 ohms n/a n/a at ±600 A peak ........... 20 ohms 25 ohms n/a n/a Nominal analog output current ................... 150 mA 100 mA Turns ratio ................................................. 1:2000 1:5000 Overall accuracy at 25°C and ± 15 V.............. ±0.5% of I ±0.3% of I N N Supply voltage (VDC) ................................... ±12 to ± 18 ( ± 5%) ±15 (±5%) Dielectric strength....................................... 6 kV rms/50 Hz/1 min. 3 kV rms/50 Hz/1 min. (between the current carrying conductor and the output of the sensor) Accuracy-Dynamic Performance Zero current offset at 25°C ......................... ± 0.3 mA max. ± 0.2 mA max. Offset current temperature drift between 0°C and +70°C ...................... ± 0.3 mA typ., ± 0.5 mA max. ± 0.2 mA typ., ± 0.3 mA max. between -25°C and +85°C ................... ±0.3 mA typ., ±0.8 mA max. Linearity..................................................... better than ±0.1% Response time ........................................... less than 0.5 ms less than 1.0 ms di/dt accurately followed............................. better than 50 A/ms Bandwidth .................................................. 0 to 150 kHz (-1 dB) General Information Operating temperature................................ -40 °C to +85°C Storage temperature .................................. -40°C to +90 °C Current drain (plus output current)................ 14 mA (at ± 18 V) 14 mA (at ± 15 V) Coil resistance............................................ 25 ohms (at 70°C) 50 ohms (at 70°C) Package..................................................... Flame retardant plastic coil Weight ....................................................... 120 grams 265 grams Mounting ................................................... Four mounting holes 0.169 inch (4.3 mm) diameter Aperture .................................................... 0.905 inch diameter (23 mm) 1.020 inch diameter (26 mm) Output reference......................................... To obtain a positive output on the terminal marked “O/P”, aperture current must flow in the direction of the arrow (conventional flow). o Notes: - The temperature of the current carrying conductor should not exceed 100 C - Contact F.W. Bell for other models - Due to continuous process improvement, specifications 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 Current Sensors CLO-300 CLO-500 Mechanical Dimensions All dimensions are in inches (millimeters) Model CLO-300 .169" DIA (4.3mm) (4-PLCS.) 1.102" (28mm) Mate-n-lock connector .354" 2.087" DIA. (9mm) (53mm) 2.205" 1.811" (56mm) (46mm) .846" (21.5mm) .063" .197" .905" .197" (1.6mm) (5mm) DIA. (5mm) (23mm) .197" 3.346" (5mm) (85mm) 3.740" (95mm) Model CLO-500 1.417" .169" DIA. (36mm) (4.3mm) Mate-n-lock (4-PLCS.) connector .472" 2.756" DIA. (70mm) (12mm) 2.913" 2.520" 1.220" (74mm) (64mm) (31mm) .063" 1.024" .197" (1.6mm) DIA. (5mm) .197" (26mm) (5mm) .197" 3.937" (5mm) (100mm) 4.330" (110mm) Note: Due to continuous process improvement, specifications are subject to change without notice. 6120 Hanging Moss Road • Orlando, Florida 32807 Rev. date 04/2003 Phone (407) 678-9748 • Fax (407) 677-5765 • www.fwbell.com - O/P + - O/P +