Sensaphone FGD-0325 Dissolved Oxygen Transducer with Optical 4-20 mA Output

Key Facts

• Optical dissolved oxygen transducer for monitoring DO saturation and concentration.
• Outputs directly as 4-20 mA for percent saturation and concentration readings.
• Measures dissolved oxygen concentration in mg/L or ppm.
• Designed for harsh wastewater environments with a corrosion-resistant body.
• No warm-up period required.
• Does not require constant flow to maintain a stable reading.
• Sensor membrane lasts approximately 2 years and is replaceable.
• Custom unit – non-cancellable and non-returnable.

Overview

The Sensaphone FGD-0325 Dissolved Oxygen Transducer is an optical DO sensor designed to provide direct 4-20 mA output for dissolved oxygen percent saturation and concentration monitoring. It is intended for applications where stable dissolved oxygen readings are needed without the maintenance demands commonly associated with electrochemical DO sensors.

Because the sensor is optical and inherently self-referencing, it requires no warm-up period, does not require constant flow, and is less affected by fouling. The corrosion-resistant body is designed to withstand the demanding conditions commonly found in wastewater environments.

Product images are for reference only and may vary.

Features

• Optical dissolved oxygen sensing technology.
• Direct 4-20 mA output for percent saturation and concentration.
• Supports concentration readings in mg/L or ppm.
• No warm-up period required before operation.
• Stable readings without constant water flow.
• Reduced sensitivity to fouling compared with electrochemical DO sensors.
• Low-maintenance design with replaceable sensor membrane.
• Corrosion-resistant body for wastewater environments.

Technical Specifications

• Product Type: Dissolved oxygen transducer
• Sensing Method: Optical dissolved oxygen sensing
• Output Signal: 4-20 mA
• Measured Outputs: Percent saturation and dissolved oxygen concentration
• Concentration Units: mg/L or ppm
• Sensor Membrane Life: Approximately 2 years
• Body: Corrosion-resistant construction
• Return Policy: Custom unit – non-cancellable / non-returnable

Use Cases

• Wastewater dissolved oxygen monitoring
• Process monitoring where stable DO readings are required
• Remote monitoring systems using 4-20 mA sensor input
• Applications where reduced maintenance and no warm-up time are important

What’s Included

• Sensaphone FGD-0325 Dissolved Oxygen Transducer

Installation Notes

This transducer is intended for systems that accept a 4-20 mA signal. Confirm compatibility with the monitoring, alarm, or control equipment before ordering. Since this is a custom unit, it is non-cancellable and non-returnable.

Category FAQs

What does this dissolved oxygen transducer measure?

It measures dissolved oxygen as percent saturation and as concentration in mg/L or ppm.

Does this sensor require constant flow?

No. The optical sensing design does not require constant flow to maintain a stable reading.

Does the sensor require a warm-up period?

No. Optical dissolved oxygen sensors of this type do not require a warm-up period.

How often does the sensor membrane need replacement?

The sensor membrane lasts approximately 2 years and is replaceable.

Is this suitable for wastewater environments?

Yes. The sensor body is corrosion resistant and designed for harsh wastewater environments.

Can this connect directly to a 4-20 mA monitoring system?

Yes, this sensor outputs directly as 4-20 mA. Confirm the receiving device accepts the required signal configuration before ordering.

Is this item returnable?

No. This is a custom unit and is non-cancellable and non-returnable.