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The SR661 is a range selectable probe that offers 3 switch selectable ranges of 20, 200 or 2000AAC. This probe has a voltage output proportional at the current measured in the jaw of the probe. The SR661 has an integral 6.5 ft (1.98m) lead terminated by BNC connector. The high accuracy and wide frequency response makes this probe an excellent choice for use with oscilloscopes.
| 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 |
– |
Accuracy (100A Range) 0.1 to 120A |
≤2% ± 5mV |
Phase Shift (100A Range) 1 to 5A |
– |
Accuracy (1000A Range) 1 to 1200A | ≤1% ± 1mV |
Phase Shift (1000A Range) 1 to 50A |
– |
| Overload | 12A and 120A continuous/1200A for 40 min ON, 20 min OFF |
| Frequency Range | 1Hz to 100kHz (@ -3dB) See typical response curves |
| Load Impedance | 1MΩ @ 47 pF |
| Working/Common Mode Voltage | 600V Cat. III |
| Output Termination | 6.5 ft BNC |
| MECHANICAL | |
| Operating Temperature | -14° to 122°F (-10° to 50°C) |
| Storage Temperature | -4° to 158°F (-20° to 70°C) |
| Operating Relative Humidity | 0 to 85% @ 35°C |
| 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 ± 3°K, 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 Ω @47pf.
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