Built-in diagnostics continuously test analyzer and sensor operation RS-232 output enables efficient data retrieval

The D33 analyzer is ideal for monitoring dissolved oxygen concentrations in equalization basins, aeration basins, digestors, and final effluent. Menu-guided operation features up to six text lines to guide you through setup, operation, calibration, and test/maintenance functions. Display screen annunciators show relay status. Passcode capability restricts configuration and calibration access to authorized personnel only. Configure each relay independently and with time basis actuation�ideal for use with the air blast cleaning system (sold separately). Combine built-in diagnostics with relay customization to provide diagnostic alarm relay to alert you of sensor membrane, depleted electrolyte, and other sensor and analyzer failure conditions.