BI-680 Online Dissolved Oxygen Controller

Industrial online dissolved oxygen controller, 1 or 2 point calibration, 4 to 20 mA outputs, the meter is suitable for monitoring the concentration of dissolved oxygen and % saturation in water.

Features:
• Economical online dissolved oxygen controller is equipped with a polarographic electrode.
• 1 or 2 points calibration using the air-saturated water or zero oxygen solution.
• Salinity and barometric pressure compensations eliminate the measurement errors.
• Automatic temperature compensation ensures accurate readings over the entire range.
• Setup menu allows setting the number of calibration points, measurement unit, alarm limits,
hysteresis value, 4 to 20 mA output, etc.
• Reset function automatically resumes all settings back to the factory defaults.

Specifications Ordering Info Optional Accessories Packaging

Model		BI-680
Dissolved Oxygen
Range		0.00 to 20.00 mg/L
Resolution		0.01 mg/L
Accuracy		±0.5 mg/L
% Saturation of Oxygen
Range		0.0 to 200.0%
Resolution		0.1%
Accuracy		±2.0%
Communication
Signal Output		4 to 20 mA
High/Low Limit Alarm		0.00 to 20.00 mg/L, selectable
Load		Maximum 500 Ω
Communication Interface		RS485
Connection Terminals		Detachable screw terminals
Other Specifications
Calibration		1 or 2 points
Temperature Compensation		0 to 40°C / 32 to 104°F, automatic
Pressure Correction		60.0 to 112.5 kPa / 450 to 850 mmHg
Salinity Correction		0.0 to 35.0 g/L
Environmental Conditions		0 to 50°C / 32 to 122°F, relative humidity < 80%
Power Supply		DC 24V
Dimensions		96 × 96 × 75 mm
Weight		350 g

Ordering Code	Meter Includes
BI-680	IE-80T industrial dissolved oxygen electrode
	DO electrolyte solution
	DO membrane cap

Items	Description
IE-80T Dissolved Oxygen Electrode	For measuring the DO and % saturation of oxygen
DO Electrolyte Solution	For filling the dissolved oxygen electrode
DO Membrane Cap	For polarographic dissolved oxygen electrode