| BRAND | Circutor |
| Product | QNA-423 RS232-RS485 |
| Description | Network quality analyzer |
| Internal code | IMP390847 |
| Weight | 1 |
| Technical specification | Network quality analyzer with 2 serial interfacesfor the detection of two feeds (transformer's)Measuring range 3x57,7V / 100V to 3x500V / 866VFrequency 42 ... 69 HzSupply 100 to 400V AC / 730V DC 70 to |
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