| After-sales Service: | Yes |
|---|---|
| Warranty: | 1 Year |
| Touch Screen Resolution: | 800x480 |
| Humidity: | 80% |
| Data Storage: | 48W |
| Channel: | 7 |
| Customization: |
|---|
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| WDJD-4 Multi-function Digital Resistivity/IP Meter | |
| Receiving unit | |
| Voltage precision | If Vp≥10mV, ± 5‰ ± 1LSB; if Vp < 10mV, ±1% ± 1LSB. |
| Input impedance | ≥50MΩ |
| Apparent polarizability precision | ±1% ± 1LSB |
| SP compensation range | ±10V |
| Current channel | 6 A, ±0.4% ± 1LSB, 24 bit A/D |
| Current precision | If Ip≥ 10mA, ± 5‰ ± 1 LSB; if Ip < 10 mA, ±1% ± 1 LSB. |
| Suppression | ≥80dB for 50Hz industrial frequency (common mode interference or differential mode interference). |
| Transmitting unit | |
| Max transmitting power | For general Res/IP sounding, 6600W. |
| For multi-electrode Res imaging, 1125W, limited by WDZJ-4 switcher | |
| For Res cable, 1350W | |
| For IP cable, 2400W | |
| Max voltage | For general Res/IP sounding, ±1100V (2200V peak to peak) |
| For multi-electrode Res imaging, 450V DC (limited by WDZJ-4 switcher) | |
| Max current | For general Res/IP sounding, ±6A |
| For multi-electrode Res imaging, 2.5A DC (limited by WDZJ-4 switcher | |
| Pulse width | 1~60s, duty ratio 1:1 |
| others | |
| Display | 160 × 160 dot matrix LCD |
| Storage | ≥1GB |
| Working temperature | -10ºC~+50ºC, 95 %RH |
| Storage temperature | -20ºC~+60ºC |
| Instrument power | internal 12V 9Ah rechargeable battery , lasts for 30 hours (or 12V external power supply) |
| Weight | ≤ 4.4 Kg |
| Dimension (L×W×H) | 270mm X 246mm X 175mm |
| WDZJ-4 Multiplex Electrode Switcher | |
| Max electrode be connected | 60 and 120 (for option) |
| Insulation impedance | ≥500MΩ |
| Maximum working voltage | 500VDC |
| Maximum working current | 2.5ADC |
| Power supply | Internal 7.4V 4AH rechargeable lithium battery, last for continuously 25 hours work |
| Working temperature | -10ºC~+50ºC |
| Twist pair wire (Optional) |
| 2*7 copper-clad-steel cores, 500m/roll, iron electrode |
| Multi-electrode cable of WGMD-4 system (Optional) |
| 30 take-out, 5m/10m space for option |
| Intelligent Res Cable for 2D Res Imaging (Optional) | |
| Multi-electrode cable | 32-core, outer diameter is Φ6mm |
| Maximum voltage | 450V |
| Maximum current | 3A |
| Take-out spacing | standard 5m or 10m (also customized according to order) |
| Cable insulation: | ≥500MΩ/500V between any two cores |
| Copper Electrode for Multi-electrode Resistivity Cable (Optional) | |
| Copper electrode | Φ12mm x 280mm, with plug-pull clamp |
| Quantity | up to order |
| Intelligent IP Cable for 2D Res or 2D IP Imaging (Optional) | |
| Cable | polyurethane coated, outer diameter Φ8mm |
| Quantity | up to order |
| Connector (take-out) number | 10/sting (ten electrode per string) |
| Connector (take-out) spacing | 1~10m (or up to order) |
| Connector size | Φ30mmx100mm (connector only), Φ39mmx170mm (including rubber head) |
| Maximum voltage | 800V |
| Maximum current | 3A |
| Cable insulation |
cable between A, B connecting ports and cable between A, B connecting ports and the low voltage connecting port, insulation is more than 1000MΩ/1000V; cable between low voltage connecting ports, insulation is more than 500MΩ/500V |
| Working temperature | -20°C~+70°C |
| Stainless Steel Electrode for 2D/3D Resistivity Imaging (Optional) | |
| Stainless steel electrode | Φ10mm x 280mm, with stainless spring |
| Quantity | up to order |
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