SLDW1140 Series Ion-Selective Electrode Nitrate Nitrogen Analyzer - Technical Summary
SLDW1140 Series Ion-Selective Electrode Nitrate Nitrogen Analyzer - Technical Summary 1. Working Principle Adopts an ion-selective electrode (coated with an ion-permeable membrane) combined with a reference sensor. Detects the redox potential of specific ions via the composite sensor (membrane +...
- Product Introduction
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SLDW1140 Series Ion-Selective Electrode Nitrate Nitrogen Analyzer - Technical Summary
1. Working Principle
Adopts an ion-selective electrode (coated with an ion-permeable membrane) combined with a reference sensor. Detects the redox potential of specific ions via the composite sensor (membrane + electrolyte), measures millivolt-level voltage signals, and converts them into ion concentration values through internal calculation.
2. Core Parameters
- Measuring Parameters & Range: No3-N (0.5~1000mg/L), pH (0~14), Temperature (0~50℃; water sample: 0~40℃, non-freezing)
- Accuracy/Resolution: No3-N (≤±10% or ±0.2mg/L, whichever is larger; resolution 0.1mg/L), pH (resolution 0.01)
- Power Supply: 85-265VAC (50/60Hz) or 24VDC±10%
- Dimensions & Material: Transmitter (270x205x100mm, ABS+PC); Sensor (Φ58×341mm, 316L stainless steel+POM)
- Protection Class: Transmitter IP65; Sensor IP68
- Output & Interface: Isolated 4~20mA analog output; 3 programmable relays (2A/250VAC); Optional MODBUS RS485/Profibus DP
3. Key Features
- Calibration: Factory-calibrated, on-site calibration supported
- Display & Storage: LCD (Chinese/English menu, shows measured values/trend lines); 10-year data storage with power-off protection
- Operation: On-site setting via transmitter buttons; Easy installation (R5/4 inch external thread)
- Adaptability: Wide temperature range adaptation; High protection class for harsh environments
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