OverviewSpecificationsResources
Process analyzer for the determination of dissolved hydrazine
The WATERLINE N2H4 process photometer can be used for the monitoring and control of the hydrazine concentration in water. Measurement principle is the photometric determination of hydrazine by forming of an Azine compound by reaction with 4-(Dimethylamine)- benzaldehyde.
Main application for the photometer is the monitoring of the hydrazine concentration losed water circuits (e.g. boiler water).
The analyzer consists of a control unit with touchscreen and an analysis unit with measuring chamber, valve, dosing pumps and all required tube connections. The control unit includes a microprocessor which controls the automatic measurement incl. sampling, rinsing, reagent dosing and surveillance of the photodetection system.
Advantages:- Automatic measurement incl. self test and drift compensation
- Easy operation via touchscreen
- Adjustable limit value and alarm value
- Programmable analog output (0/4-20 mA)
- Adjustable break time between two analysis
- External start/stop of an analysis possible
- No external calibration required
- External plug connections (IP65) for alarm relay, limit relay, analysis relay, external start/stop, analog output 0/4-20 mA
- Multi range power supply (110–230 Volt, 50–60 Hz)
- Including polycarbonate wall cabinet
| Parameter | Hydrazine |
| Description | Automatic microprocessor controlled analyzer for the photometric determination of total dissolved hydrazine |
| Typical Applications | Control of hydrazin in makeup water for boilers and in closed circuit water for heating systems |
| Analysis Method: | Photometric determination of dissolved hydrazine by reaction with 4-(Dimethylamine)-benzaldehyde |
| Analyzer type | WATERLINE N2H4 |
| Measuring Range | 0,05 – 1,00 ppm |
| Resolution | 0,01 ppm |
| Accuracy | 2 % of end value |
| Reproducibility | 1 % of end value |
| Zero-point Stability | automatic adjustment |
| Number of Samples | 1 |
| Sample | |
|---|---|
| Operating Pressure | 0,1 - 10 bar |
| Temperature | 5 - 30 °C |
| Sample Volume | 25 ml per analysis (excluding rinsing) |
| Sample Condition | clear, filtrated |
| Chemical Demands | pH 4 - 8 |
| Drain | pressure free into open drain |
| Reagents | |
| Number | 1 |
| Storage Temp. | 0 – 30°C |
| Usage/analysis | appr. 4 ml |
| Reagent volume | 500 ml |
| Suitable for | appr. 125 analysis |
| Analysis | |
| Cycle (approx.) | 4 min |
| Sample interval | 1 – 99 min or external start/stop |