AC Current Probe Model SR661 The Model SR661 is designed for use Features Applications in industrial and utility environments. Measurement range of Power quality measuring The unique ergonomic design allows it 100mA to 2000Aca to easily clamp onto cables or small Low industrial loads bus bars. It is built to the highest safety L arge jaw opening accommodates Measuring around cable bundles and performance standards including conductors up to two 500MCM the CE Mark and is UL approved for Power load monitoring conductors Canada and United States. W aveform analysis Ergonomic design and easy Excellent transformation and low operation phase shift, plus a broad frequency Conforms to EN 61010, 600V Cat. III response, permit accurate measure- safety standard ments of current for power and power quality measurements. The high Lo w phase shift for power quality magnetic cores and uniform measurements windings provide sensitivity for very Available with mV output signals low level current measurements, as Designed for DMMs, recorders, well as measurements up to 1200Aca . loggers , oscilloscopes, power and The Model SR661 provides an harmonic meters accurate voltage output of 1mV/A to 100mV. This voltage output enables UL approved for Canada and instruments without current ranges to United States measure, display log currents through Doub le Insulation an AC voltage range or measure very low AC. CE Mark SR661 211349 (pdf) 0308 Rev. 05 Technical Assistance (800) 343-1391 www.aemc.com 1 of 4Specifications Model SR661 ElEctrical Nominal range 20Apk, 200Apk, 2000Apk Measurement range 0.1 to 2000Apk transformation ratio Voltage output Output Signal mV output signal (2V Peak max), 3 range switch selectable on handle 100mV/A: 10mA to 20A Peak 10mV/A: 0.1A to 200A Peak 1mV/A: 1A to 2000A Peak accuracy (10A Range) 0.1 to 12A 3% 10mV Phase Shift (10A Range) 0.1 to 0.5A 0.5 to 2A 2 to 10A 15 10 to 12A 15 accuracy (100A Range) 0.1 to 120A 2% 5mV Phase Shift (100A Range) 1 to 5A 5 to 20A 15 20 to 100A 10 100 to 120A 5 accuracy (1000A Range) 1 to 1200A 1% 1mV Phase Shift (1000A Range) 1 to 50A 50 to 200A 3 200 to 1000A 2 1000 to 1200A 1 Overload 12A and 120A continuous/1200A for 40 min ON, 20 min OFF Frequency range 1Hz to 100kHz ( -3dB) See typical response curves l oad impedance 1M 47 pF Working/common 600V Cat. III Mode Voltage: Output termination 6.5 ft BNC MEchaNical Operating temperature -14 to 122F (-10 to 50C) Storage temperature -4 to 158F (-20 to 70C) Operating relative 0 to 85% 35C humidity Jaw Opening 2.25 (57mm) max Maximum conductor Size 2.05 (52mm) Maximum Bus Bar Size One 1.95 x 0.19 (50 x 5mm) Dimensions 4.37 x 8.50 x 1.77 (111 x 216 x 45mm) Weight 1.21 lbs (550g) Polycarbonate Material Handles: Polycarbonate + ABS, Gray, UL94 V0. Jaws: Polycarbonate, Red, UL94 V0 SaFEty Electrical EN 61010-2-032 Ul approval Yes Canada and United States Double insulation Yes cE Mark Yes Note: Reference conditions: 23 3K, 20 to 75% RH, 48 to 65Hz, external magnetic field <40A/m, no DC component, no external current carrying conductor, test sample centered. Load impedance 1m 47pf. SR661 211349 (pdf) 0308 Rev. 05 Technical Assistance (800) 343-1391 www.aemc.com 2 of 4