EZ7641 Total Nitrogen + Total Phosphorus Analyser

EZ7641 Total Nitrogen + Total Phosphorus Analyser
제품 번호: EZ7641.XXXXXXXX
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EZ7641 Total Nitrogen & Total Phosphate Analyser, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 3 x empty 2.5L Reagent Containers with Fittings (HCl, NaOH and H₂SO₄ Solution) and 3 x empty 2.5L Glass Reagent Containers with Fittings (Colour, Reductor & Persulphate Solution)

사양

Automatic cleaning: 예
Demineralised water: Consumption: 140 mL/analysis (hour)
간섭: TN: The main interferences are Br- and I-. When the amount of I- is 2.2 fold of the amount of TN, or the amount of Br- is 3.4 fold of the amount of TN, this will interfere on the test results. Dissolved organic matter, surfactants and Chromium (VI) interfere. Various inorganic substances not normally found in natural water, such as Chlorite [ClO₂-] and Chlorate [ClO₃-], may interfere.

TP: Arsenic (V), Chromium (VI), Copper (II) > 10 mg/L, Iron (III) > 10 mg/L, Sulphide > 2 mg/L, and Vanadium (V), Silica > 60 mg/L. Large amounts of colour and turbidity interfere. Fats, oil, proteins, surfactants and tar.
검출 하한(LOD): TN: ≤ 0.25 mg/L
TP: ≤ 0.005 mg/L
경보: 1 x malfunctioning, 4 x user-configurable, max. 24 VDC/0.5 A, potential free contacts
계측용 공기: Dry and oil free according to ISA-S7.0.01-1996 quality standard for instrument air
교정: Automatic, 2-point; frequency freely programmable
디지털 출력: Optional: Modbus (TCP/IP, RS485)
무게: 25 kg
배수: Atmospheric pressure, vented, min. Ø 32 mm
범위: 0.25 - 10 mg/L TN; 0.005 - 1 mg/L TP
보증: 12 개월
보호 등급: Analyser cabinet: IP55 / Panel PC: IP65
사이클 타임: Standard measurement cycle time for both TN & TP: 60 minutes
상자에 무엇이 있습니까?: EZ7641 Total Nitrogen & Total Phosphate Analyser, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 3 x empty 2.5L Reagent Containers with Fittings (HCl, NaOH and H₂SO₄ Solution) and 3 x empty 2.5L Glass Reagent Containers with Fittings (Colour, Reductor & Persulphate Solution)
시료 스트림 수: 1, 2, 4, or 8
시료 압력: By external overflow vessel
시료 온도: 10 - 30 °C
시료 유속: 100 - 300 mL/min
시료 품질: Maximum particle size 100 µm, < 0.1 g/L; Turbidity < 50 NTU
시약 요구 사항: Keep between 10 - 30 °C
아날로그 출력: Active 4 - 20 mA max. 500 Ohm load, standard 1, max. 8 (option)
유효성 검사: Automatic; frequency freely programmable
인증: CE compliant / ETL certified
재료: Hinged part: Thermoform ABS, door: PMMA
Wall section: Galvanised steel, powder coated
전력: 230 VAC, 50/60 Hz
120 VAC, 50/60 Hz
Max. power consumption: 440 VA
접지: Dry and clean earth pole with low impedance (< 1 Ohm) using an earth cable of > 2.5 mm²
정밀도: Better than 3% (TN) and 2% (TP) full scale range for standard test solutions
주위 온도: 10 - 30 °C, ± 4 °C deviation at 5 - 95% relative humidity (non-condensing)
측정 방법: TN: UV photometric measurement at 220 nm after persulphate digestion in alkaline medium, based on APHA 4500-NO3 (B)
TP: Colorimetric measurement at 700 nm using ascorbic acid reduction and molybdate colour solution after persulphate digestion in acidic medium, based on APHA 4500-P
크기(H x W x D): 690 mm x 465 mm x 330 mm
항목: Total Nitrogen (TN), Total Phosphorus (TP)