An overview,
ZY3122 series clamp earth resistance meter is widely used in electric power,telecommunication,meteorology,oil field,construction and industrial electrical equipment grounding resistance measurement,circuit resistance measurement.When measuring the grounding system with a loop,there is no need to disconnect the grounding lead,no need for auxiliary electrode,fast.Can measure the grounding fault that can't be measured with the traditional method,can be applied to the occasion that the traditional method can't be measured,because ZY3122 series clamp earth resistance meter is to measure the grounding body resistance and grounding lead resistance of the comprehensive value.
Two,technical indicators
| Resistance range | 0.01 Ω-1200 Ω |
| * Current range | 0.00 mA-20. 0A |
| Resistive resolution | 0.001 Ω |
| * Current resolution | 0.05 mA |
| Data storage | Group 99 |
| Acousto-optic alarm | "Du-Du-Du-" alarm sound, press AL key to open and close |
| Setting range of alarm critical value | Resistance: 1-199 Ω; * Current: 1-499mA |
| Power supply | 6VDC (4 No.5 alkaline dry cells) |
| Working temperature and humidity | -20 ℃-55 ℃; 10% RH-90% RH |
| Liquid crystal display | 4-bit LCD digital display, length and width 47mm × 28. 5mm |
| Dimension of jaw | Long jaw 65mm × 32mm;; Round jaw φ 32mm |
| Opening size of jaw | Long jaw 32mm;; Round jaw 32mm |
| Clamp gauge quality | Long jaw 1160g; Round jaw 1120g (including battery) |
| Dimensions of pliers | Long jaw: length, width and thickness 285mm × 85mm × 56mm Round jaw: length, width and thickness 260mm × 90mm × 66mm |
| Explosion-proof sign | Exia ⅱ BT3 Ga |
| Protection level | Double insulation |
| Structural characteristics | Pincer CT |
| Shift gears | Fully automatic shift |
| External magnetic field, electric field | < 40A/m; < 1V/m |
| Single measurement time | 0.5 sec |
| Resistance measurement frequency | > 1kHz |
| * Measured current frequency | 50/60 Hz automatic |
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