Brand: Erun environmental protection
Name: Laboratory bench-top boiler water quality analyzer
Model number: ERUN-ST7-11
Parameters: turbidity, total hardness,ph,ect.
Laboratory bench boiler water quality analyzer ERUN-ST7-11 refers to "GB / T 1576-2018 Industrial Boiler Water Quality" research and production, can detect the turbidity, total hardness, full alkalinity, phenolphthalein alkalinity, PH, conductivity, dissolved oxygen, oil, iron, copper, dissolved solid, phosphate, sulfite, chloride ion and other parameters.
number | parameter | measurement range | error | measuring method |
1 | phosphate radical (low-range) | 0.01-10.0mg/L | 0.2 or 5% | GB/T 6913-2023 |
phosphate radical (high-range) | 10.0-50.0mg/L | 5% | ||
2 | Total alkalinity (low-range) | 0-1mmol/L | 5%(F.S) | Acid-base titration |
Total alkalinity (high-range) | 1-50mmol/L | 5%(F.S) | ||
3 | Phenolphthalein alkalinity | 0-50mmol/L | / | |
4 | Relative alkalinity | 0.00-1.00 | / | / |
5 | Hardness (low-range) | 0.001-0.05mmol/L | 5%(F.S) | GB/T 6909-2018 |
Hardness (high-range) | 0.05-10mmol/L | 5%(F.S) | ||
6 | Copper (low-range) | 0.02-1.0mg/L | 5%(F.S) | GB/T 13689-2007 |
Copper (high-range) | 1.0-10.0mg/L | 5%(F.S) | ||
7 | Iron (low-range) | 0.0-5.0mg/L | 5%(F.S) | GB/T 14427-2017 |
Iron (high-range) | 5.0-10.0mg/L | 5%(F.S) | ||
8 | turbidity | 0-100FTU | ≤2%(F.S) | GB/T 12151-2005 Formahydrazine turbidity |
9 | PH（25℃） | 0.00-14.00 | ±0.1 | GB/T 6904-2008 Composite electrode method |
10 | Dissolved oxygen | 0-20.0 mg/L | ±0.2 | GB/T 12157-2022 Oxygen electrode method |
11 | conductivity (25℃) | 0.00 -199.9×103µS/cm | ±1.0% (F.S) | GB/T 6908-2018 Potassium chloride electrode method |
12 | Dissolved solid material (electrode method) | 0.0～199.9×103mg/L | ±0.5% (F.S) | GB/T 14415-2007 Solid guide ratio method |
13 | Oil | 0.00～900.00mg/L | RSD＜0.6% | GB/T 12152-2007 Infrared photometry |
14 | Sulfite root | 0-100mg/L | / | Iodometric method |
15 | chloridion | 0.20-100.0mg/L | 5%(F.S) | GB/T 29340-2012 Ammonium thiocyanide titration method |
Laboratory bench top boiler water quality analyzer ERUN-ST7-11 applicable field:
1.Water quality of natural circulating steam boiler and steam boiler with external water treatment:
Water supply detection parameters:Turbidity / FTU, Hardness / (mmol/L), pH (25℃), conductivity (25℃) / μ S / cm), Dissolved oxygen / (mg/L), Oil / (mg/L), Iron / (mg/L)
Pot water detection parameters:Total alkalinity / (mmol/L), Phenolphthalalinity / (mmol/L), pH (25℃), Conductivity (25℃) / μ S / cm), Dissolved solid / (mg/L), Phosphate / (mg/L), Sulfite / (mg/L), Relative alkalinity
2.Water quality of natural circulating steam boiler and steam boiler with internal water treatment:
Water supply detection parameters:Turbidity / FTU, Hardness / (mmol/L), pH (25℃), Oil / (mg/L), Iron / (mg/L)
Pot water detection parameters:Total alkalinity / (mmol/L), Phenolphthalalinity / (mmol/L), pH (25℃), Conductivity (25℃) / μ S / cm), Dissolved solid / (mg/L), Phosphate / (mg/L)
3.Water quality of tubular and direct flow steam boilers:
Water supply detection parameters:Turbidity / FTU, Hardness / (mmol/L), pH (25℃), Dissolved oxygen / (mg/L), Oil / (mg/L), Iron / (mg/L), Total alkali / (mmol/L),Phenolphthalein / (mmol/L), Conductivity (25℃) / μ S / cm), Dissolved solids / (mg/L), Phosphate / (mg/L), Sulfite / (mg / L)
Pot water detection parameters:Total alkalinity / (mmol/L),Phenolphthalalinity / (mmol/L), pH (25℃), Conductivity (25℃) / μ S / cm), Dissolved solid / (mg/L), Phosphate / (mg/L), Sulfite / (mg/L)
4.Water quality of steam boiler:
Hardness / (mmol/L), Iron / (mg/L), Copper / (mg/L), Oil / (mg/L)
5.Water quality of the hot water boiler:
Water supply detection parameters:Hardness / (mmol/L), pH (25℃), Turbidity / FTU, Iron / (mg/L), Dissolved oxygen / (mg/L), Chloride ion / (mg/L)
Pot water detection parameters:PH (25℃), Phosphate / (mg/L), iron / (mg/L), Oil / (mg/L), Pholphthalein / (mmol/L), Dissolved oxygen / (mg/L)
