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The low range turbidimeter
Compliant with EPA Method 180.1, the 1720E Low Range Turbidimeter is a trusted, continuous-reading nephelometric turbidimeter designed for low-range turbidity monitoring. A built-in bubble removal system allows the 1720E to be sensitive to fine changes in low level turbidity. When connected to a Hach SC controller, the instrument can store up to 6 months of measurement logs, verification data, and other instrument information for complete data reporting. Verification is made easy with the optional ICE-PIC module that allows for verification of the turbidimeter in less than one minute.
| Accuracy | ±2% of reading or ±0.02 NTU (whichever is greater) from 0 – 40 NTU |
| Accuracy 2 | ±5% of reading from 40 – 100 NTU (Defined according to ISO 15839.) |
| Alarm | When connected to sc controller: three set-point alarms, each equipped with an SPDT relay with unpowered contacts rated 5A resistive load at 230 Vac |
| Certifications | CE certified by Hach Company to EN61326 (industrial levels) |
| Certifications | Listed by ETL to UL 61010A-1: Certified by ETL to CSA C22.2 No. 1010.1: CE certified by Hach Company to EN 61010-1 |
| Communication | When connected to sc controller: MODBUS RS232/RS485, PROFIBUS, HART |
| Compliance Certifications | Standard Methods 2130B, USEPA 180.1, Hach Method 8195 |
| Controller | Dual Digital |
| Dimensions (H x W x D) | 254 mm x 305 mm x 406 mm |
| Mounting | Turbidimeter body and head assembly: wall and floor stand sc controller: wall, pole, panel, and floor stand |
| Number of Channels | 2 |
| Operating Humidity | 5 – 95 % non-condensing |
| Operating Temperature Range | 0 – 50 °C (Single Sensor System) |
| Operating Temperature Range | 0 – 40 °C (Double Sensor System) |
| Outputs | Up to five selectable for 0-20 mA or 4-20 mA; output span programmable over any portion of the 0-100 NTU range; built into the sc Controller |
| Power Requirements (Hz) | 50 – 60 Hz |
| Power Requirements (Voltage) | 24 VDC |
| Range | 0.001 – 100 Nephelometric Turbidity Units (NTU) |
| Repeatability | Better than ± 1.0 % of reading or ±0.002 NTU, whichever is greater (Defined according to ISO 15839.) |
| Response Time | Initial response in 1 minute, 15 seconds for a full-scale step change |
| Sample Flow Rate | 200 – 750 mL/minute (3.1 – 11.9 gal/hour) |
| Sample Input | 1/4 inch NPT female, 1/4 inch compression fitting (provided) |
| Sample Output | 1/2 inch NPT female, 1/2 inch hose barb (provided) |
| Sample Temperature | 0 – 50°C (32 – 122°F) |
| Ship Wt. (lbs) | 1720E Turbidimeter: 5.9 kg (13 lbs.) |
| Signal Average Time | User selectable from 0, 6, 30, 60, 90 seconds |
| Storage Conditions | -20 to 60 °C (-4 to 140 °F) |
| Warranty | 12 months |
| What’s included? | Hach sc200 Controller, Mounting Hardware, sc200 Basic User Manual, 1720E, 1720E User Manual, and 1000 mL 20 NTU Stablcal ®. (The controller power cord is ordered separately.) |
