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 / ETL certified
Cycle Time:
10 min per parameter
Demineralised water:
For rinsing / dilution
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:
Ions like Antimony Sb(III), Bismuth, Chloroplatinate, Gold, Iron Fe(III), Lead, Mercury, Metavanadate, Silver can precipitate with Nitrate. Presence of Copper Cu(II) may decompose the diazonium salt which results in a low result. Strong oxidizing agents. Tricloramine results in a false red colour. Large amounts of colour and turbidity interfere. Fats, oil, proteins, surfactants and tar.
Lower Limit of Detection (LOD):
≤ 0.2 mg/L NO₃-N
≤ 0.1 mg/L NO₂-N
Material:
Hinged part: Thermoform ABS, door: PMMA
Wall section: galvanised steel, powder coated
Measurement method:
Colorimetric measurement at 546 nm using NEDD, conform with standard method ASTM 4500-NO3-A
Model:
EZ1301
Number of sample streams:
1, 2, 4, or 8
Parameter:
Nitrate, Nitrite
Power:
100 - 240 VAC, 50/60 Hz
Max. power consumption: 120 VA
Power supply:
100 - 240 VAC, 50/60 Hz
Precision:
Better than 3% full scale range for standard test solutions
Protection Class:
Protection class: Analyser cabinet: IP44 / Panel PC: IP65
Range:
0.2 - 10 mg/L NO3-N
0.1 - 5 mg/L NO2-N
0.2 - 10 mg/L NO₃-N; 0.1 - 5 mg/L NO₂-N
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?:
EZ1301 Nitrite, Nitrate Analyser, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets and empty Containers for Reagents with Fittings