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Optical DO sensor  

 

Optical Dissolved Oxygen System Specifications

The AdvantEDGE sensor uses the latest technology to measure dissolved oxygen (DO) in demanding environments. The AdvantEDGE series™ Optical Dissolved Oxygen RDO® sensor o­ffers several advantages for monitoring DO in process applications:


ROBUST
• Inert construction will not corrode in high salinity samples
• Insensitive to common interferences such as hydrogen sulfide, chloride, chlorine, ammonium, and many others


COST EFFECTIVE OPTIONS
• Choose models for use with the economical LD500 Local Display; providing 4-20
mA outputs and various communications protocols.
• Or, choose models available with integral 4-20 mA, Modbus RS-485, and SDI-12
outputs for direct connection to SCADA or PLC; totally eliminating the need for a
separate transmitter/controller.


NO CALIBRATION HASSLES
• When used with the LD500 Local Display, no calibration is required.
• When connected directly to a SCADA or PLC, a one-time calibration is performed
that lasts for 12 months.


LOW MAINTENANCE
• No electrolyte or membranes to replace.
• Sensor cap lasts 1 year without the need for recalibrations.
• Simply wipe the sensor cap periodically. Optional air blast accessory available.


ACCURATE
• 0.1 mg/L accuracy from 0 - 8 mg/L DO, and 0.2 mg/L accuracy from 8 to20 mg/L DO
• Fast response to oxygen and temperature changes
• Consistent, reproducible results (<0.05 mg/L reproducibility)

 

Sensor type Luminescent dissolved oxygen sensor
Transmitter/local display Optional, not required
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, cap T90: 30 sec T95: 37 sec @ 25°C
Resolution 0.01 mg/L
Useful life of cap 1 year from first instrument reading
Shelf life of cap

2 years from date of manufacture

(install within 1 year from date of manufacture)

Operating Temperature 0° to 50° (32° 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° to 60° (33° to 140°F), in factory container
Storage conditions, sensor -5° to 60° (23° to 140°F)
Salinity range 0 to 42 PSU, fi­xed or real-time capable
pH range 2-10 pH
Barometric range 507-1115 mbar, fi­xed or real-time capable
Internal mounting thread 1¼-11½ NPT
Communications options Modbus RTU (RS485), 4-20mA, SDI-12
Maximum cable length Up to 4000 ft (Modbus and 4-20 mA) or up to 200 ft (SDI-12)
Warranty

Sensor: 3 years from date of manufacture

Cap: 2 years from date of manufacture

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