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STs Series Dissolved Oxygen Sensor - 3020 Dissolved Oxygen

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• Galvanic electrode measuring 0-20 mg/L or percent saturation of dissolved oxygen, depending on scaling with attached datalogger or remote telemetry unit (RTU)
• Isolated to prevent ground loops
• Secondary 0-50°C temperature sensor
• 2-wire, 4-20 mA analog outputs compatible with wide range of dataloggers or remote telemetry units
• Low power usage

Model Number: 3020 Dissolved Oxygen
Data Sheet:

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Product Specification

Description：

The pHionics STs Series™ Dissolved Oxygen is a dual-output sensor that pairs with a datalogger or RTU for real-time water quality monitoring. A narrow diameter allows the STs Series to go where other sensors cannot while a durable, chemical-resistant housing ensures many years in-use.

All parts, including the cable, are easily replaceable without tools using pHionics patented pHiConn™ System, saving frustration and money.

Highlighted Features：

• Galvanic electrode measuring 0-20 mg/L or percent saturation of dissolved oxygen, depending on scaling with attached datalogger or remote telemetry unit (RTU)

• Isolated to prevent ground loops

• Secondary 0-50°C temperature sensor

• 2-wire, 4-20 mA analog outputs compatible with wide range of dataloggers or remote telemetry units

• Low power usage

Applications：

• Industrial Effluent Monitoring

• Wastewater Treatment

• Environmental Monitoring

• Aquaculture

Specifications：

Dissolved Oxygen Sensor
Output	4-20 mA
Dissolved Oxygen Range	0-20 mg/L (ppm)
Operational Temperature Range	0-70℃
Electrode Type	Galvanic cell with Teflon™ membrane
Minimum Flow Rate	1.5 ft (0.457 m) per second
Transmitter Type	2-wire
Automatic Temperature Compensation	2% per℃
Isolation	600 VDC
Operational Temperature Range	0-70℃
Power Supply Voltage	8-40 VDC
Response time	98% < 60 seconds
Pressure Range	0-70 psi
Wetted Materials	316 Stainless Steel, Delrin®, Viton™, Teflon®, epoxy
Length	14.25 in (36.20 cm)
Width	0.750 in (1.9 cm) maximum
Weight (No cable)	0.50 lbs (0.227 kg)
Linearity	± 0.5% of full scale*
Accuracy	± 2.0% of full scale*
Sensitivity	± 0.05% of full scale
Stability	± 2.0% of full scale
Temperature Sensor
Output	4-20 mA
Temperature Range	0-50℃
Accuracy	+/- 1℃
Linearity	+/- 0.5℃
Power Supply Voltage	7-40 VDC
Cable
Cable Material	Polyurethane
Type	4 conductor, Kevlar® reinforced, water blocked, shielded, twisted-pair wiring
Maximum Distance	3 miles
Resistance per 1000 ft (304.8 m)	26 Ohms
Replaceable?	Yes