Alarm:
1x malfunctioning, 4x 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)
Calibration:
Automatic, 2-point; frequency freely programmable
Certifications:
CE compliant / UL certified
Cycle Time:
10 - 15 minutes
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:
Soaps, oily matter, suspended solids or precipitates may coat the glass electrode and cause a sluggish response. Allow additional time between titrant additions to let the electrode come to equilibrium or clean the electrodes occasionally.
Lower Limit of Detection (LOD):
≤ 10 mg/L
Material:
Hinged part: Thermoform ABS, door: PMMA
Wall section: Galvanised steel, powder coated
Measurement method:
Acid-base titration with hydrochloric acid
Measuring range:
100 - 5000 mg/L CaCO3
Optional:
10 - 500 mg/L CaCO3
25 - 1250 mg/L CaCO3
50 - 2500 mg/L CaCO3
Internal dispenser dilution (max. factor 100)
Method:
Titrimetric
Number of sample streams:
1, 2, 4 or 8
Parameter:
Alkalinity, total
Power:
100 - 240 VAC, 50/60 Hz
Max. power consumption: 120 VA
Precision:
Better than 2% full scale range for standard test solutions
Protection Class:
Protection class: Analyser cabinet: IP44 / Panel PC: IP65
Range:
100 - 5000 mg/L CaCO₃
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?:
EZ4004 Alkalinity Analyser, Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 1 x pH Electrode, Routine S7 Connection, and 1 x empty 10L Reagent Container with Fittings (for HCl Solution)