Hach, EZ7253.XXXXXXXX, EZ7253 Volatile Fatty Acids (VFA) & Alkalinity Analyzer
Catalog Number: EZ7253.XXXXXXXX
Send an RFQ.
Category
Loading…
| 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 (50 - 86 °F ± 7.2 °F 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; frequency freely programmable |
| Certifications | CE compliant / ETL certified |
| Cycle Time | 10 - 15 minutes |
| Demineralized Water | N.A. |
| 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 64 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 | Phosphates and similar dissociating ions and non-fatty acids which on acidification from undissociated acids may cause interference. Sulphide may deteriorate some types of pH electrodes. Fats, oil, proteins, surfactants and tar. |
Unless otherwise stated, the minimum order amount is USD 1,000.
For orders below USD 1,000, an additional handling fee may apply, or we may arrange local delivery / local handover where available.
All quotations are subject to final confirmation, including product availability, lead time, batch information, shipping cost, and applicable export or handling requirements.
For quotation requests, please send an RFQ from website or contact:
Please send inquiries directly to us in the “To” field. Emails sent via BCC, mass mailing, or with unrelated recipients may be automatically filtered and will not be processed.
| Lower Limit of Detection (LOD) | ≤ 10 mg/L |
|---|
| Material | Hinged part: Thermoform ABS, door: PMMA Wall section: Galvanized steel, powder coated |
|---|
| Measurement Method | Acid-base titration |
|---|
| Method Name | Titrimetric |
|---|
| Number of sample streams | 1, 2, or 4 |
|---|
| Parameter | Volatile fatty acids (VFA), total alkalinity (TA) |
|---|
| Power | 100 - 240 VAC, 50/60 Hz Max. power consumption: 120 VA |
|---|
| Precision | Better than 3% full scale range for standard test solutions |
|---|
| Protection Class | Analyzer cabinet: IP44 / Panel PC: IP65 |
|---|
| Range | VFAs 500 - 10000 mg/L as acetate equivalent; Alkalinity, total and Alkalinity, partial 250 - 5000 mg/L as CaCO₃ |
|---|
| Range | VFA: 500-10000 mg/L, TA: 250-5000 mg/L |
|---|
| Reagent Requirements | Keep between 10 - 30 °C (50 - 86 °F) |
|---|
| Rinsing | With tap water |
|---|
| Sample Flow Rate | 100 - 300 mL/min |
|---|
| Sample Pressure | By external overflow vessel |
|---|
| Sample Quality | Maximum particle size 500 µm, < 0.1 g/L Most applications require the use of an EZ9130 sampling/filtration system. |
|---|
| Sample Temperature | 10 - 30 °C (50 - 86 °F) |
|---|
| Validation | Automatic; frequency freely programmable |
|---|
| Warranty | 12 months |
|---|
| Weight | 25 kg (55 lbs.) |
|---|
| What's included? | EZ7253 VFA & Alkalinity Analyzer Instruction Manual, 1 x Double Bit Door Key, 1 x Mounting Brackets, 1 x pH Electrode, Routine S7 Connection, 1 x empty 2.5L Reagent Container with Fittings (Anti-foam Solution) and 2 x empty 10L Reagent Containers with Fittings (H₂SO₄ & NaOH Solution) |
|---|
