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Comprendere il ruolo di un misuratore TDS: cosa misura?
Un misuratore di solidi disciolti totali (TDS) è uno strumento essenziale utilizzato in vari campi, tra cui il trattamento dell’acqua, la manutenzione dell’acquario, la coltura idroponica e la manutenzione della piscina. È un dispositivo che misura la concentrazione totale delle sostanze disciolte in un liquido. Ma cosa misura esattamente un misuratore TDS? Questo articolo mira a fornire una comprensione completa del ruolo di un misuratore TDS e delle sostanze che misura.
| Modello | Tester di torbidità online NTU-1800 |
| Intervallo | 0-10/100/4000NTU o come richiesto |
| Visualizzazione | LCD |
| Unità | NTU |
| DPI | 0.01 |
| Precisione | \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\±5 per cento FS |
| Ripetibilità | \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\±1 per cento |
| Potenza | \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\≤3W |
| Alimentazione | CA 85 V-265 V\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\±10 per cento 50/60Hz o |
| CC 9~36 V/0,5 A | |
| Ambiente di lavoro | Temperatura ambiente:0\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\～50\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\℃; |
| Umidità relativa\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\≤85 per cento | |
| Dimensioni | 160*80*135 mm (sospeso) o 96*96 mm (incorporato) |
| Comunicazione | 4~20mA e comunicazione RS-485 (Modbus RTU) |
| Uscita commutata | Relè a tre vie, capacità 250 V CA/5 A |
Un misuratore TDS misura la quantità totale di ioni carichi mobili, inclusi minerali, sali o metalli disciolti in un dato volume di acqua. Queste sostanze possono essere sia organiche che inorganiche e possono provenire da fonti naturali, liquami, deflussi urbani, acque reflue industriali e sostanze chimiche utilizzate nel processo di trattamento delle acque. Il misuratore TDS rileva queste sostanze misurando la conducibilità elettrica dell’acqua, che aumenta con la presenza di sali e minerali disciolti.
Le sostanze misurate da un misuratore TDS possono essere ampiamente classificate in cationi positivi e anioni negativi. I cationi includono calcio, magnesio, potassio e sodio, che sono essenziali per la salute umana e si trovano comunemente nell’acqua potabile. Gli anioni, invece, comprendono carbonati, nitrati, bicarbonati, cloruri e solfati. Queste sostanze possono anche essere benefiche per la salute, ma la loro presenza eccessiva può portare alla durezza dell’acqua e ad altri problemi di qualità dell’acqua.
Tuttavia, è importante notare che un misuratore TDS non distingue tra sostanze dannose e benefiche. Fornisce semplicemente il conteggio totale di tutti i solidi disciolti. Pertanto, mentre un valore TDS elevato può indicare un’alta concentrazione di sostanze nocive come piombo o rame, potrebbe anche significare un’alta concentrazione di minerali benefici come calcio o magnesio.
Il livello TDS nell’acqua può influire in modo significativo sul suo gusto e odore e aspetto. Bassi livelli di TDS possono portare ad acqua dal sapore insipido, mentre alti livelli di TDS possono portare ad un sapore salato o amaro. Inoltre, livelli elevati di TDS possono far sì che l’acqua appaia torbida o colorata, il che può risultare poco attraente per i consumatori. Pertanto, il monitoraggio del livello di TDS è fondamentale per il mantenimento della qualità estetica dell’acqua potabile.
In conclusione, un misuratore TDS misura la concentrazione totale delle sostanze disciolte nell’acqua, comprese le sostanze benefiche e nocive. Svolge un ruolo cruciale nel mantenimento della qualità estetica e funzionale dell’acqua, rendendola uno strumento indispensabile in diversi ambiti. Tuttavia, è importante ricordare che un misuratore TDS fornisce una misura generale della qualità dell’acqua e dovrebbe essere utilizzato insieme ad altri metodi di analisi dell’acqua per una valutazione completa.