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SCM202 AC Voltage to 4-20mA Converter |
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The SCM202 measures AC voltage in the 0-500V range and converts it into a 4-20mA Current Loop signal. The unit also features galvanic isolation on both the input and output sides, and test points for monitoring the current loop without interrupting it. |
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Technical Specifications
| Accuracy |
±0.1% over full range, typical (for 2-100%) for sinusoidal input |
| Temperature stability |
±0.02%/°C |
| Response time |
220 ms (0-98%) |
| Output voltage ripple |
0.1% of full range RMS |
| Frequency range |
40-500Hz |
| Galvanic isolation |
2.5KV RMS in 1 minute |
| Loop power supply |
10-32VDCc |
| Output current |
4-20mA |
| Test tap |
40-200mV represents 4-20mA (shunt 10ohm ±1%) |
| Output over-voltage protection |
33V tranzorb |
| Output over-current protection |
slow fuse 100mA 20x5mm |
| Current loop resistance |
Rmax(ohms)=(Vsupply-10)/0.02 |
| Zero adjustment |
±25% min |
| Span adjustment |
±25% min |
| Operating temp. range |
0-70°C without condensation |
| Storage temp. range |
-25 to 85°C |
| Enclosure |
plastic 35x89x71mm, IP50 |
| Mounting |
standard 35mm rail |
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