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Navigator 550 low level dissolved This publication provides commissioning Further publications are available for free download oxygen wet-section instructions for the Navigator 550 low level from: dissolved oxygen wet-section. The wet-section is www.abb.com/measurement used in conjunction with the Navigator 540 transmitter.
Potential safety hazards The Navigator 550 Dissolved Oxygen wet-section operates from 24V DC supplied from the transmitter. There are no hazardous voltages present. There are no chemical or burn hazards and Protective Personal Equipment (PPE) is not required.
Sample requirements Locating the wet-section 1. Ensure the sampling point is as close as possible to the Referring to Fig. 1: wet-section and provides a thoroughly-mixed representative 1. Locate the wet-section / transmitter indoors in a clean, dry, sample. well-ventilated, easily-accessible area. 2.
Mounting the wet-section Refer to Fig. 2 for wet-section dimensions. The wet-section weighs 4.5 kg (10 lb). Note. Clearance – the enclosure doors can open 180°. If mounting in a confined area, allow sufficient clearance for door opening. Dimensions in mm (in.) Ø...
Connecting the sample lines Note. Sample inlet tubing, sample outlet tubing and drain tubing is customer-supplied. Stainless steel is highly recommended for sample inlet lines as it prevents ingress of oxygen via the sample tubing. Nylon tubing has a low oxygen permeability and can be used as an alternative to stainless steel, but stainless steel is the preferred option. ...
Fitting the dissolved oxygen sensor Caution. Only install the oxygen sensor immediately before use The sensor has a limited shelf life, do not store longer than 6 months. Store the sensor in a cool environment. Referring to Fig. 5: 1.
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