| CT235A | CT237A | CT238A |
| Key Notes | - 2 to 1000A Current Range Ratio
- 1000 to 1 Division
- mV Output
- DC to 10kHz Frequency Range
| - 0.5 to 200A Current Range
- 100 to 1/1000 to 1 Division Ratio
- mV Output
- DC to 10kHz Frequency Range
| - 10mA to 20A Current Range
- 10 to 1 Division Ratio
- mV Output
- DC to 10kHz Frequency Range
|
| DC Current | Range | 100A, 1000A | 200A, 1000 A RMS | 20 A max |
| Meter Input Impendance | 10kWmin. and 100 pF max. |
| Division Ratio | 1000 to 1 | 10 to 1 |
| Accuracy | ±(1 % of rdg + 0.5 A) | 20 A: ±(1 % of rdg + 0.03 A
200 A: ±(1 % of rdg + 0.3 A) | ±(1% of rdg + 2 mA) |
| Output | 200 A: 1 A dc at jaws=1mV dc to meter
1000 A: 1 A dc at jaws=1mV dc to meter | 20 A: 1 A AC at jaws = 10 mV AC to meter
200 A: 1 A AC at jaws = 1 mV AC to meter | 1 A DC at jaws = 100 mV DC to meter |
| AC Current | Range | 100A, 1000A | 200 A, 1000 A rms | 20 A rms |
| Meter Input Impendence | 10kWmin. and 100 pF max. | 10 kΩmin. and 100 pF max. |
| Division Ratio | 1000 to 1 | 10 to 1 |
| Accuracy | ±(1 % of rdg + 0.5 A) | 20 A (< 5 kHz): ±(1 % of rdg + 0.03 A)
20 A (5 to 10 kHz): ±(2 % of rdg + 0.03 A)
200 A (< 2 kHz): ±(1 % of rdg + 0.3 A)
200 A (2 to 5 kHz): ±(2 % of rdg + 0.3 A) | 20 A (< 1 kHz): ±(1 % of rdg + 2 mA)
20 A (1 to 20 kHz): ±(3 % of rdg + 2 mA) |
| Output | 200 A: 1 A dc at jaws=1mV dc to meter
1000 A: 1 A dc at jaws=1mV dc to meter | 20 A: 1 A AC at jaws = 10 mV AC to meter
200 A: 1 A AC at jaws = 1 mV AC to meter | 1 A AC at jaws = 100 mV AC to meter |
| Overload Protection | >700 A for 10 minutes and 20 minutes OFF
300 V ac on uninsulated conductors | 700 A for 10 minutes and 20 minutes OFF
1000%
300 V AC on uninsulated conductors | 500 A
300 V AC on uninsulated conductors |
| Max Conductor Size | 31mm (1.2 inches) | 19 mm (0.75˝) |
| Lead Length | 1.5 m (59 inches) |
| Operating Temperature Range | –0°C to + 50 °C at < 80 % R.H. |
| Storage Temperature Range | –20 °C to + 85 °C |
| Temperature Coefficient | 0.1 % of rdg per 1 °C |
| Power | 9Vbattery, NEDA 1604, JIS 006P, IEC 6F22 |
| Battery Life | 50 hours (alkaline) | 30 hours (alkaline) |
| Dimensions | 55 mm x 220 mm x 30 mm (2.2 in x 8.6 in x 1.2 in) |
| Weight | 320 g (.7 lb.) | 290 g (.64 lb.) |
