Product details
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Headline
ST-730 Series
Designed for monitoring the middle range turbidity in various applications while the ST-73X Series is for very low turbidity applications. It is more robust and tolerant to fouling, particular matters, and air bubbles comparing to other online turbidity meters designed for relatively clean water applications. The turbidity sensor measures two optical densities and two scattering intensities at two wavelengths. This helps measure a large turbidity range and yet maintain a fine resolution. This design also helps the sensor run self-diagnostics.
Features & Benefits
Benefits:
- Dual-wavelength: white LED and IR LED 90° scattering to achieve more reliable and accurate reading in a complex flow system.
- A small footprint compact design.
- Isolated 4-20mA output. No need for additional transmitter for easy connection to out controllers.
- Isolated RS-485 output embedded for easy troubleshooting and calibration.
Typical Applications:
- Industrial water treatment process control, including raw water, cooling water, and wastewater
- Surface water monitoring
- Other chemical processes with middle range of turbidity
- The Ultra-Low Turbidity sensors are designed for drinking water applications
Additional Notes
Specification:
| ST-730 | ST-730B | ST-730SS | ST-731 | ST-735 | |
|---|---|---|---|---|---|
| P/N | 53201 | 53202 | ST730SS | 53505 | 53204 |
| Range | 0 – 100 NTU | 0 – 1,000 NTU | 0 – 100 NTU | 0 – 10 NTU | 0 – 10,000 NTU |
| Resolution | 0.1 NTU | 1 NTU | 0.1 NTU | 0.05 NTU | 10 NTU |
| Accuracy | ± 2% of reading | ± 2% of reading | ± 2% of reading | ± 2% of reading | ± 2% of reading |
| Method | Nephelometric, with light sources of White LED and IR LED (860nm) | Nephelometric, with light sources of White LED and IR LED (860nm) | Nephelometric, with light sources of White LED and IR LED (860nm) | Nephelometric, with light sources of White LED and IR LED (860nm) | Nephelometric, with light sources of White LED and IR LED (860nm) |
| Power Supply | 22 – 26V DC, Power Consumption – 1W | 22 – 26V DC, Power Consumption – 1W | 22 – 26V DC, Power Consumption – 1W | 22 – 26V DC, Power Consumption – 1W | 22 – 26V DC, Power Consumption – 1W |
| Outputs | Isolated 4 – 20 mA Analog Output, Isolated RS-485 Digital Output, Supporting MODBUS protocol | Isolated 4 – 20 mA Analog Output, Isolated RS-485 Digital Output, Supporting MODBUS protocol | Isolated 4 – 20 mA Analog Output, Isolated RS-485 Digital Output, Supporting MODBUS protocol | Isolated 4 – 20 mA Analog Output, Isolated RS-485 Digital Output, Supporting MODBUS protocol | Isolated 4 – 20 mA Analog Output, Isolated RS-485 Digital Output, Supporting MODBUS protocol |
| Dimension | Length 6.8 inch, body diameter 1.44 inch | Length 6.8 inch, body diameter 1.44 inch | Length 6.8 inch, body diameter 1.44 inch | Length 6.8 inch, body diameter 1.44 inch | Length 6.8 inch, body diameter 1.44 inch |
| Weight | 0.37 pounds (2.5 lbs for ST-730SS) | 0.37 pounds (2.5 lbs for ST-730SS) | 0.37 pounds (2.5 lbs for ST-730SS) | 0.37 pounds (2.5 lbs for ST-730SS) | 0.37 pounds (2.5 lbs for ST-730SS) |
| Installation | Custom Tee with ¾ NPT Glue & Thread | Custom Tee with ¾ NPT Glue & Thread | Custom Tee with ¾ NPT Glue & Thread | Custom Tee with ¾ NPT Glue & Thread | Custom Tee with ¾ NPT Glue & Thread |
| Material | CPVC (304 Stainless Steel for ST-730SS) | CPVC (304 Stainless Steel for ST-730SS) | CPVC (304 Stainless Steel for ST-730SS) | CPVC (304 Stainless Steel for ST-730SS) | CPVC (304 Stainless Steel for ST-730SS) |
| Pressure | Up to 100 psi (ST-730SS - Up to 2.0 MPa (290 PSI) at 65°C (149 °F) | Up to 100 psi (ST-730SS - Up to 2.0 MPa (290 PSI) at 65°C (149 °F) | Up to 100 psi (ST-730SS - Up to 2.0 MPa (290 PSI) at 65°C (149 °F) | Up to 100 psi (ST-730SS - Up to 2.0 MPa (290 PSI) at 65°C (149 °F) | Up to 100 psi (ST-730SS - Up to 2.0 MPa (290 PSI) at 65°C (149 °F) |
| Temperature | Operation 40 – 120 °F, Storage 20 – 150 °F (ST-730SS - 0° C ~ 40 °C (32~104 °F) | Operation 40 – 120 °F, Storage 20 – 150 °F (ST-730SS - 0° C ~ 40 °C (32~104 °F) | Operation 40 – 120 °F, Storage 20 – 150 °F (ST-730SS - 0° C ~ 40 °C (32~104 °F) | Operation 40 – 120 °F, Storage 20 – 150 °F (ST-730SS - 0° C ~ 40 °C (32~104 °F) | Operation 40 – 120 °F, Storage 20 – 150 °F (ST-730SS - 0° C ~ 40 °C (32~104 °F) |
| Cable Length | 5 feet, terminated with IP6 connectors. 30 feet, 60 feet extension cables available | 5 feet, terminated with IP6 connectors. 30 feet, 60 feet extension cables available | 5 feet, terminated with IP6 connectors. 30 feet, 60 feet extension cables available | 5 feet, terminated with IP6 connectors. 30 feet, 60 feet extension cables available | 5 feet, terminated with IP6 connectors. 30 feet, 60 feet extension cables available |
| Calibration | Two point calibration against standard solution | Two point calibration against standard solution | Two point calibration against standard solution | Two point calibration against standard solution | Two point calibration against standard solution |
| Rating | IP66 | IP66 | IP66 | IP66 | IP66 |
| Regulation | CE marked | CE marked | CE marked | CE marked | CE marked |
Call or text: +1 (484) 544-0506
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