High-quality sodium analyser for continuous monitoring in low pH samples, ideal for sampling after cation ex-changers.
The AMI Sodium A is a high-performance analyser designed for continuous monitoring of dissolved sodium in high-purity water systems. It operates reliably in samples with low pH (pH≥2 and pH<8 ), making it ideal for use after cation exchangers to alert about resin bed exhaustion. With a wide measuring range of 0.1–10,000 ppb, the AMI Sodium A ensures early detection of contamination protecting critical equipment and maintaining water quality in high purity water applications.
Key Features
- Designed for acidic samples with low pH values (pH ≥ 2 and < 8), for example downstream of cation exchangers.
- pH-controlled alkalising reagent addition using diisopropylamine with a maintenance-free air pump.
- Optional second sample channel or automatic sample sequencer for up to six sample streams.
- Simple two-point calibration with automatic storage of calibration history.
- Integrated grab sample function for quick and easy spot checks.
- Wet bench-tested at the factory and ready for installation and operation.
Sodium A Specifications
Sodium measurement: (Sodium glass electrode, screw cap. Calomel reference electrode, screw cap)
| Measuring range | 0.1 ppb to 10 ppm |
|---|---|
| Accuracy | ± 5% of reading |
| Repeatability | 5% |
| Response time* | 180 s (95%) |
Sample conditions
| Flow rate | Min. 100 mL/min |
|---|---|
| Temperature | 5 to 45 °C (41 to 113 °F) |
| Inlet pressure | 0.3 to 3 bar (4 to 43 PSI) |
| Outlet pressure | Ambient pressure |
| pH value | ≥ pH 2.0 |
| Ammonium concentration | < 50 ppm |
| Suspended solids | < 10 ppm (no oil, no grease) |
Power supply
| Voltage | 100 – 240 VAC (±10%), 50/60 Hz or 10 – 36 VDC |
|---|---|
| Power consumption | Max. 35 VA |
* Active alkalising reagent addition with continuous pH monitoring.
* Simple two-point calibration.
* Automatic temperature compensation.
Contact us to place an order.
Downloads
| Brochure | Product Flyer |
| Manual | Manual |
| Datasheet | Datasheet |



