Dissolved Oxygen Meter
Description
The membrane dissolved oxygen meter is an industrial-grade instrument for precise measurement of dissolved oxygen (DO) in aqueous solutions. Using a polarographic membrane sensor, it accounts for temperature, pressure, and salinity, providing accurate DO readings for water treatment, sewage treatment plants (STP), and aquaculture.
With a liquid crystal display, the dissolved oxygen meter shows DO and medium temperature values. It supports analog 4–20mA output, RS485 digital communication (MODBUS-RTU), and relay control, making it suitable for industrial automation and monitoring systems.
Designed for reliability, the meter operates in 0–60°C, with IP54 protection. NTC10K/PT1000 temperature compensation ensures precise measurement, while alarm relays provide automatic alerts for threshold limits.
Key Features
- Measurement range: 0–20 mg/L, 0–200%, 0–400 hPa
- Resolution: 0.01 mg/L, 0.1%, 1 hPa
- Accuracy: ±1.5% FS
- Temperature compensation: NTC10K / PT1000
- Output: 4–20 mA, RS485 (MODBUS-RTU), relay
- Power supply: AC220V ±10%, 50/60Hz
- Alarm relay: AC250V, 3A
- Operating temperature: 0–60°C, humidity 10–85% RH
- Repeatability: ±0.5% FS
- IP54 ingress protection
- Compact design: 100×100×150 mm, weight 0.65 kg
Applications
- Industrial water treatment monitoring
- Sewage Treatment Plants (STP)
- Aquaculture and fisheries DO monitoring
- Laboratory and research water analysis
- Industrial process water monitoring
