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EZ7254 Volatile Fatty Acids (VFA) & Total Alkalinity Analyser

Artikel-Nr.: EZ7254.XXXXXXXX

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Ablauf: Atmospheric pressure, vented, min. Ø 32 mm

Alarm: 1 x malfunctioning, 4 x user-configurable, max. 24 VDC/0.5 A, potential free contacts

Analoge Ausgänge: Active 4 - 20 mA max. 500 Ohm load, standard 1, max. 8 (option)

Digitale Ausgänge: Optional: Modbus (TCP/IP, RS485)

Durchflussrate: 100 - 300 mL/min

Energie: 100 - 240 VAC, 50/60 Hz
Max. power consumption: 120 VA

Erdungsanschluss: Dry and clean earth pole with low impedance (< 1 Ohm) using an earth cable of > 2.5 mm²

Gewährleistung: 24 Monate

Gewicht: 25 kg

Instrumentenluft: Dry and oil free according to ISA-S7.0.01-1996 quality standard for instrument air

Interferenzen: Phosphates and similar dissociating ions and non-fatty acids which on acidification from
undissociated acids may cause interference. Sulphide (S²-) may deteriorate some types
of pH electrodes. Fats, oil, proteins, surfactants and tar.

Kalibrierung: Automatic; frequency freely programmable

Material: Hinged part: Thermoform ABS, door: PMMA
Wall section: Galvanised steel, powder coated

Messbereich: VFA 100 mg/L - 5000 mg/L, Total Alk: 250 mg/L - 25000 mg/L

VFA 100 mg/L - 5000 mg/L
TA 250 mg/L - 25000 mg/L

Messmethode: Acid-base titration

Methode: Titrimetric

Nachweisgrenze: ≤ 100 mg/L VFA
≤ 250 mg/L TA

Parameter: Volatile Fatty Acids (VFA), Total Alkalinity (TA)

Präzision: Better than 3% full scale range for standard test solutions

Probendruck: By external overflow vessel

Probenqualität: Maximum particle size 500 µm, < 0.1 g/L
Most applications require the use of an EZ9130 sampling/filtration system.

Probenströme: 1, 2, or 4

Probentemperatur: 10 - 30 °C

Reagenzien: Keep between 10 - 30 °C

Schutzklasse: Analyser cabinet: IP44 / Panel PC: IP65

Spülung: With tap water

Umgebungstemperatur: 10 - 30 °C ±4 °C deviation at 5 - 95% relative humidity (non-condensing)

Validierung: Automatic; frequency freely programmable

Vollentsalztes Wasser: N.A.

Zertifizierung: CE compliant / ETL certified

Zykluszeit: 15 minutes