The Signet 2610 RDO® Pro is a rugged, reliable sensor designed to deliver accurate dissolved oxygen (DO) data across a wide measuring range while reducing maintenance costs. It features the latest optical technology for DO measurement and eliminates the replacement of membrane and reference solutions.
The Signet 2610 Optical Sensor Cap is calibrated at the factory and requires no field calibration. The optical measurement technology resists abrasion and bleaching, allowing for a long life in many harsh applications. The DO sensor has a built in Modbus RS485 and 4 to 20 mA current loop outputs for ease of interface to existing control systems. The 3-2610-41 version includes the Signet (S3L) digital interface for direct connection with the 9900 SmartProâ„¢ Transmitter and 8900 Multi-Parameter Controller. Additional features include a 10 m (32.8 ft) cable with stripped and tinned ends as well as a titanium thermistor for improved compatibility in salt water applications.
- Municipal and Industrial Wastewater Treatment
- Drinking Water Reservoir Monitoring
- Environmental Water Discharge Monitoring
- Aquatic Life Support
- Optical DO measurement, no flow requirements
- Rugged construction
- Calibration built into the measurement cap: 2% of range, 0 to 20 mg/L
- One year measurement cap life
- No membranes or filling solutions
- Flexible communications, 4 to 20 mA, Modbus (RS485) or S3L
- Measurement range: 0 to 20 mg/L, in-line or submersible
- CE
- FCC
- RoHS compliant
- China RoHS
Sensor Type | Luminescent dissolved oxygen sensor |
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Transmitter/Local Display | Optional, not required. Compatible with 8900 and SmartPro instruments |
Communications Options | Modbus (RS485), 4 to 20 mA 3-2610-31 and -41, (S3 L) 3-2610-41 |
Maximum Cable Length | Up to 1219 m (4000 ft) (Modbus and 4 to 20 mA), 38 m (125 ft) (S3 L) |
Internal Mounting Thread | 1¼ NPT |
Power Requirements | 12 to 24 VDC ±10% regulated |
4 to 20 mA output span | 0 to 20 mg/L |
Salinity Range | 0 to 42 PSU, fixed or real-time capable |
pH Range | 2 to10 pH |
Barometric Range | 507 to 1115 mbar, fixed or real-time capable |
Maximum Pressure | 300 psi |
Range | 0 to 20 mg/L concentration, 0 to 200% saturation |
Accuracy (DO) | ±0.1 mg/L, 0 to 8 mg/L, ±0.2 mg/L, 8 to 20 mg/L |
Response Time of Cap | T90: 30 sec, T95: 37 sec @ 25 °C |
Repeatability | 0.05 mg/L |
Resolution | 0.01 mg/L |
Wetted Materials | ABS, Titanium and FPM |
Usage Life of Cap | 1 year from the first instrument reading |
Shelf Life of Cap | 24 months from date of manufacture (install within 12 mo. of manufacture) |
Operating Temperature | 0 °C to 50 °C (32 °F to 122 °F) |
IP Rating | IP-67 with cap off, IP-68 with cap installed |
Compliance | Heavy industrial, IEC 61000-6-2:2005 |
Storage Conditions, Cap | 1 °C to 60 °C (33 °F to 140 °F), in factory container |
Storage Conditions, Sensor | -5 °C to 60 °C (23 °F to 140 °F) |
Document Title | Download |
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Datasheet | Click Here to Download |
Manual | Click Here to Download |