C821-MDA-U1

Universal Liquid Transmitter and Controller

Function: Universal Transmitter and Controller for water quality parameters: pH / ORP / Conductivity (EC) / Dissolved Oxygen (DO) / Turbidity / MLSS

Measuring Range:

• pH: 0.00 ÷ 14.00 pH
• ORP: -2000 ÷ +2000 mV
• Dissolved Oxygen: 0 ÷ 40 mg/L - Saturation: 0 ÷ 200 %
• Conductivity: 0 ÷ 600 mS/cm
• Turbidity: 0 ÷ 4000 NTU
• MLSS: 0 ÷ 120,000 mg/L

AO Output: 4 ÷ 20 mA Isolated - Configurable over the desired measurement parameter - Maximum load 500 Ω - Accuracy ±0.2% FS

Communication: Isolated RS485 - Modbus RTU Protocol

DO Output: 2x SPDT Relay Contacts (Normally Open and Normally Closed) - 3A / 250 Vac

Auxiliary Power Output: 12 Vdc - 125 mA (for digital sensors)

Power Supply: AC (100 ÷ 240 Vac) / DC (24 Vdc)

Power Consumption: 6 W (max)

Accuracy: Refer to the connected sensor

Repeatability: Refer to the connected sensor

Display: LCD with switchable backlight

Working Ambient Temperature: 0 ÷ +60 °C

Ambient Humidity: 10% ÷ 85% (Non-Condensing)

Storage Temperature: -15 ÷ +65 °C

Maximum Operating Altitude: 2000 m

Housing: Plastic - Panel Mount Installation

Dimensions: W 100 x H 100 x D 150 mm - Panel cutout: 92.5 x 92.5 mm

Electrical Interface: Cable glands: 2 x M16 × 1.5 mm + 1 x M12 × 1.5 mm