GF Dissolved Oxygen 3-2610 Series Dissolved Oxygen Sensor

3-2610-51 GF Dissolved Oxygen SensorRelated products (such as GFSignet3-8850-1P conductivity transmitter) are not specialized devices for directly measuring dissolved oxygen. Their core function is conductivity measurement, but indirect monitoring can be achieved through compatibility with specific dissolved oxygen electrodes. The following is a specific analysis:

1、 Product positioning and core functions

Basic Attributes

GFSignet3-2610-51 GF Dissolved Oxygen SensorIt is mainly used to measure the conductivity, resistivity, or TDS (total dissolved solids) of liquids, rather than directly measuring dissolved oxygen (DO). Its typical application scenarios include conductivity monitoring in industries such as water treatment, chemical engineering, and pharmaceuticals.

Indirectness of dissolved oxygen monitoring

If dissolved oxygen needs to be monitored, it should be achieved through an external compatible dissolved oxygen electrode (such as a fluorescence or polarographic electrode). The transmitter receives electrode signals and converts them into standard outputs (such as 4-20mA), but the accuracy and stability of dissolved oxygen measurement depend on electrode performance.

2、 Technical parameters and characteristics

　3-2610-51 GF Dissolved Oxygen Sensor

Temperature compensation and output

Temperature measurement range: -25 to 120 ° C (-13 to 248 ° F), supports PT1000 temperature sensor input.

Current output: 4-20mA isolated output, supports adjustable and reversible modes, and the maximum closed-loop impedance varies with the power supply voltage (such as 50 Ω at 12V and 600 Ω at 24V).

Collector open circuit output: high/low alarm, programmable pulse output, suitable for automation control scenarios.

environmental adaptability

Protection level: NEMA4X/IP65, dustproof and waterproof, suitable for harsh industrial environments.

Working temperature: -10 to 70 ° C (14 to 158 ° F), storage temperature: -15 to 80 ° C (5 to 176 ° F).

Relative humidity: 0 to 95% (no condensation), ensuring stability in high humidity environments.

3、 Compatibility and limitations of dissolved oxygen monitoring

compatibility

Dissolved oxygen monitoring can be achieved through external dissolved oxygen electrodes (such as GFSignet2724/2726 series fluorescent electrodes), but the signal matching between the electrode and the transmitter needs to be confirmed.

Support multi parameter input selection, can simultaneously connect electrodes such as conductivity, dissolved oxygen, pH, etc., to achieve integrated monitoring.

局限性

Non dedicated dissolved oxygen equipment: The core function is conductivity measurement, and dissolved oxygen monitoring is an extended function. The accuracy and response speed may be lower than dedicated dissolved oxygen meters.

Electrode dependence: Dissolved oxygen measurement results are affected by electrode performance (such as fluorescence lifetime, membrane material) and require regular calibration and maintenance.

Cost and complexity: Additional purchase of dissolved oxygen electrodes and supporting accessories is required, increasing system costs and installation complexity.

4、 Recommended alternative solutions

If high-precision and direct measurement of dissolved oxygen is required, it is recommended to choose GF specialized dissolved oxygen products, such as:

IDO2606 Digital Fluorescence Dissolved Oxygen Sensor

Measurement range: 0-20mg/L or 0-200% saturation, accuracy ± 3% or ± 0.3mg/L.

Advantages: Membrane free design, long-life fluorescent cap, low maintenance requirements, suitable for wastewater treatment, aquaculture and other scenarios.

Portable fluorescence dissolved oxygen analyzer (such as BDO-820, BDO-821)

Measurement range: 0-20mg/L (0-200% saturation), accuracy ± 0.1mg/L.

Advantages: Portable design, IP67 waterproof, automatic temperature and pressure compensation, suitable for rapid on-site testing.

3-2610-51 GF Dissolved Oxygen Sensor