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EZ7702 Total Nitrogen Analyser

EZ7702 Total Nitrogen Analyser
Product #: EZ7702.XXXXXXXX
Unit Price Contact Hach

What's included?

EZ7702 Total Nitrogen Analyser, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 1 x empty 2.5L Reagent Container with Fittings (Buffer Solution), 2 x empty 5L Reagent Containers with Fittings (Oxidation B & Reductor Solution), 1 x empty 10L Reagent Container with Fittings (Oxidation A Solution) and 1 x empty 2.5L Glass Reagent Container with Fittings (Colour 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)
Analog 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 / UL certified
Cooling water: Flow rate approx. 5 L/h; temperature max. 30 °C; pressure max. 0.5 bar
Cycle Time: 30 min including digestion of 10 min (standard)
Demineralised water: For rinsing
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: Antimony (III), Bismuth (III), Chloroplatinate, Gold (III), Iron (III), Lead (II), Mercury (II), Metavanadate, and Silver (I) can precipitate with Nitrate. The presence of Copper (II) may decompose the diazonium salt which results in a low result. Strong oxidising agents. NCl₃ results in a false red colour. Large amounts of colour and turbidity interfere. Fats, oil, proteins, surfactants and tar.
Lower Limit of Detection (LOD): ≤ 250 µg/L
Material: Hinged part: Thermoform ABS, door: PMMA
Wall section: Galvanised steel, powder coated
Measurement method: Colorimetric measurement at 546 nm using hydrazine reduction and NEDD colour solution after persulphate digestion in alkaline medium, conform with APHA 4500-N
Model: EZ7702
Number of sample streams: 1, 2, 4, or 8
Parameter: Total Nitrogen (TN)
Power: 230 VAC, 50/60 Hz
120 VAC, 50/60 Hz
Max. power consumption: 440 VA
Precision: Better than 3% full scale range for standard test solutions
Protection Class: Analyser cabinet: IP55 / Panel PC: IP65
Range: 0.25 - 10 mg/L TN
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?: EZ7702 Total Nitrogen Analyser, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 1 x empty 2.5L Reagent Container with Fittings (Buffer Solution), 2 x empty 5L Reagent Containers with Fittings (Oxidation B & Reductor Solution), 1 x empty 10L Reagent Container with Fittings (Oxidation A Solution) and 1 x empty 2.5L Glass Reagent Container with Fittings (Colour Solution)