5903S benchtop ion concentration meter

Technical specifications

• 1, Standard: JB/T 6858-2018 Test methods for pH meters and ion meters;
• 2, Measuring range: ammonia nitrogen: (0.1–3000) mg/L; nitrate nitrogen: (0.5–3000) mg/L; potassium ion: (0.5–3000) mg/L; fluoride ion: (0.1–20000) mg/L; chloride ion: (5–35000) mg/L; scale division: 0.1ug/L, 0.01mg/L, 0.1mV; potential value: (–1999–+1999)mV;
• 3, instrument class: 0.1; temperature: ±0.5℃(0–60.0℃);
• 4, Automatic temperature compensation range: (0–99.9)℃, referenced to 25°C;
• 5, Accuracy: ≤±2.5%·FS, ≤±0.3℃;
• 6, Sample water: (0–99.9)℃, 0.6Mpa;
• 7, Input impedance:≥1012Ω;
• 8, electronic unit automatictemperaturecompensation error: ±1.5%;
• 9, Electronic unit repeatability error: of reading ±2.5%;
• 10,: ±1.5% /24h;
• 11, clock Accuracy: ±1 min/month;
• 12, current Isolated output: (4–20)mA(load<750 Ω);
• 13, Output current error:≤±1%FS;
• 14, data storage capacity: 1 months(1 pt/5 min);
• 15, high/low alarm relay: AC220V, 7A;
• 16, communication interface: RS485(optional);
• 17, Power supply: AC220V±22V, 50Hz±1Hz; optionalDC24Vpower supply;
• 18, Ingress protection: IP65;
• 19, Overall dimensions: 159 (L)×159 (W)×138 (D)mm; Cutout size: (138×138)mm;
• 20, Weight: 1.0kg;
• 21, Operating conditions: Ambient temperature (0–60)℃, Relative humidity <85%;