EZ7675 Total Nitrogen + Total Phosphorus Analyser

EZ7675 Total Nitrogen + Total Phosphorus Analyser
Product #: EZ7675.XXXXXXXX
Unit Price Contact Hach

What's included?

EZ7675 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)

Specifications

Alarm: 1 x malfunctioning, 4 x user-configurable, max. 24 VDC/0.5 A, potential free contacts
Ambient Temperature: 10 - 30 °C, ± 4 °C deviation at 5 - 95% relative humidity (non-condensing)
Analogue Outputs: Active 4 - 20 mA max. 500 Ohm load, standard 1, max. 8 (option)
Automatic cleaning: Yes
Calibration: Automatic, 2-point; frequency freely programmable
Certifications: CE compliant / ETL certified
Cycle Time: Standard measurement cycle time for both TN & TP: 60 minutes
Demineralised water: Consumption: 140 mL/analysis (hour)
Digital outputs: Optional: Modbus (TCP/IP, RS485)
Dimensions (H x W x D): 690 mm x 465 mm x 330 mm
Drain: Atmospheric pressure, vented, min. Ø 32 mm
Earth connection: Dry and clean earth pole with low impedance (< 1 Ohm) using an earth cable of > 2.5 mm²
Instrument air: Dry and oil free according to ISA-S7.0.01-1996 quality standard for instrument air
Interferences: 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.
Lower Limit of Detection (LOD): TN: ≤ 4 mg/L
TP: ≤ 0.1 mg/L
Material: Hinged part: Thermoform ABS, door: PMMA
Wall section: Galvanised steel, powder coated
Measurement method: 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
Measuring range: 4 - 100 mg/L TN; 0.1 - 20 mg/L TP
Number of sample streams: 1, 2, 4, or 8
Parameter: Total Nitrogen (TN), Total Phosphorus (TP)
Power: 230 VAC, 50/60 Hz
120 VAC, 50/60 Hz
Max. power consumption: 440 VA
Precision: Better than 3% (TN) and 2% (TP) full scale range for standard test solutions
Protection Class: Analyser cabinet: IP55 / Panel PC: IP65
Reagent requirements: Keep between 10 - 30 °C
Sample Flow Rate: 100 - 300 mL/min
Sample Pressure: By external overflow vessel
Sample Quality: Maximum particle size 100 µm, < 0.1 g/L; Turbidity < 50 NTU
Sample Temperature: 10 - 30 °C
Validation: Automatic; frequency freely programmable
Warranty: 12 months
Weight: 25 kg
What's included?: EZ7675 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)