ABB Navigator 550 User manual

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ABB MEASUREMENT & ANALYTICS | COMMISSIONING INSTRUCTIONS | CI/ADS550–EN REV. D
Navigator 550
Low level dissolved oxygen wet-section
Measurement made easy
Introduction
This publication provides commissioning
instructions for the Navigator 550 low level
dissolved oxygen wet-section. The wet-section is
used in conjunction with the Navigator 540
transmitter.
For more information
Further publications are available for free download
from:
www.abb.com/measurement
or by scanning this code:
Search for or click on
Data Sheet
Navigator 500
dissolved oxygen analyzer
DS/ADS550-EN
Operating Instruction
Navigator 500 low level
dissolved oxygen analyzer
OI/ADS550 -EN
Commissioning Instruction
Navigator 540 transmitter
CI/AWT540 -EN
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Navigator 550
low level dissolved
oxygen wet-section

2CI/ADS550–EN Rev. D
Health & Safety
Safety precautions
Be sure to read, understand and follow the instructions contained within this manual before and during use of the equipment. Failure to do so
could result in bodily harm or damage to the equipment.
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.
Safety standards
This product has been designed to satisfy the requirement of IEC61010-1:2010 3rd edition.
Safety conventions
Warning. Installation, operation, maintenance and servicing must be performed:
by suitably trained personnel only
in accordance with the information provided in this manual
in accordance with relevant local regulations
Warning. In this manual, a warning is used to indicate a condition which, if not met, could cause serious personal injury and / or death.
Do not proceed beyond a warning until all conditions have been met.
Caution. A caution is used to indicate a condition which, if not met, could cause minor or moderate personal injury and / or damage to
the equipment. Do not proceed beyond a caution until all conditions have been met.
Note. A note is used to indicate important information or instructions that should be considered before operating the equipment.

CI/ADS550–EN Rev. D 3
Symbols – CEI / IEC 61010-1:2001-2
Symbols that appear on this product are shown below
Product recycling and disposal (Europe only)
Restriction of Hazardous Substances (RoHS)
Specification
Mechanical data
Protection
IP54
Dimensions
Height – 480 mm (18.90 in.)
Width – 290 mm (11.41 in.) – door shut
Depth – 185 mm (7.28 in.) door closed – minimum
(excluding fixing brackets)
Weight – 4.5 kg (10 lb)
Electrical
Power supply (supplied by transmitter)
24 V DC max.
Power consumption
8 W max.
Direct current supply only.
Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12 August
2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment
users must now return old or end-of-life equipment to the manufacturer for disposal at no charge to the user.
ABB is committed to ensuring that the risk of any environmental damage or pollution caused by any of its products is minimized
as far as possible.
The European Union RoHS Directive and subsequent regulations introduced in member states and other countries limits the
use of six hazardous substances used in the manufacturing of electrical and electronic equipment. Currently, monitoring and
control instruments do not fall within the scope of the RoHS Directive, however ABB has taken the decision to adopt the
recommendations in the Directive as the target for all future product design and component purchasing.

4CI/ADS550–EN Rev. D
1Sample requirements
1. Ensure the sampling point is as close as possible to the
wet-section and provides a thoroughly-mixed representative
sample.
2. Sample must contain <10 ppm suspended solids with a
particle size no greater than 60 µm. (If particle sizes exceed
60 µm, use a 60 µm filter.)
3. Sample temperature must be within the range 5 to 55 °C
(41 to 131 °F).
4. Sample flow rates must be within the range 100 to
300 ml/min. (6.10 to 18.30 cu in./min.) – recommended
150 ml/min (9.15 cu in./min.).
5. Sample pressure must not exceed 2 bar gauge (29 psi).
2Locating the wet-section
Referring to Fig. 1:
1. Locate the wet-section / transmitter indoors in a clean, dry,
well-ventilated, easily-accessible area.
2. Do not locate in rooms containing corrosive gases or vapors –
for example, with chlorination equipment or chlorine gas
cylinders.
3. Select a location not subject to strong electrical and magnetic
fields. If this is not possible (for example, where mobile
communications equipment is present), use screened cables
within flexible, earthed, metal conduit.
Note. If the measured sample temperature exceeds
55 °C (131 °F), the calibration valve opens automatically
to protect the dissolved oxygen sensor from thermal
overload. The valve closes after 30 minutes, but if the
sample temperature still exceeds 55 °C (131 °F) the valve
re-opens.
Fig. 1 Locating the wet-section
Maximum cable distance
to transmitter
30 m (98 ft.)
IP54
55 °C
(131 °F)
Max.
0 °C
(32 °F)
Min.
0 to 95 %
Humidity Avoid
vibration

CI/ADS550–EN Rev. D 5
3Mounting the wet-section
Refer to Fig. 2 for wet-section dimensions. The wet-section weighs 4.5 kg (10 lb).
Referring to Fig. 3:
1. Mark the wall using the dimensions shown.
2. Drill and plug 3 holes Aand Bin the wall suitable for M6
or 1/4in. fixings.
3. Screw in top fixing A, leaving a gap of 20 mm (0.78 in.)
between the fixing head and the wall.
4. Hang the wet-section onto fixing A, ensuring it is retained
firmly against the wall.
5. Secure the wet-section to the wall using 2 fixings B.
Note. Clearance – the enclosure doors can open 180°. If mounting in a confined area, allow sufficient clearance for door opening.
Dimensions in mm (in.)
*For M6 or 1/4in. fastener.
Fig. 2 Low level dissolved oxygen wet-section dimensions
385 CTRS
210 REF
480
185
290
290
281 DOOR OPEN
210
210
CTRS
CTRS
Navigator 500
Ø 7 (0.27)*
386
(15.19)
210 (8.27)
Sample
outlet
480
(18.90)
185 (7.28)
281 (11.06)
37 (1.45)
Ø 7
(0.27)*
80.2
(3.15)
290 (11.41)
67
(2.63)
46.5 (1.83)
Sample drain (calibration)
Sample inlet
bulkhead connector
Sample drain
(calibration)
Sample inlet bulkhead connector –
suitable for either 6 mm or 1/4in. pipe
Note. Fixing Acannot be adjusted once the
wet-section is placed over it.
Dimensions in mm (in.)
Fig. 3 Mounting the wet-section
386
(15.19)
210 (8.27) Allow sufficient
clearance for
fully-open door

6CI/ADS550–EN Rev. D
4Connecting the sample lines
Referring to Fig. 4:
1. Connect the sample outlet tubing Ausing flexible PVC tubing 10 mm (3/8in.) ID fitted to barbed connector Bat the base of sample
outlet C.
2. Connect the drain tubing Dusing flexible PVC tubing 10 mm (3/8in.) ID fitted to the barbed connector at the base of drain valve E.
3. Connect sample inlet tubing F(typically stainless steel), 6 mm or 1/4in. OD (depending on customer requirement) to the bulkhead
connector G. Alternatively, nylon tubing 6 mm or 1/4in. OD could be fitted with suitable inner support fitting.
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.
All sample drains must be kept as short as possible and be vertical to enable the sample to drain freely during a calibration routine.
Ensure the drain tubing outlet is open to atmosphere.
Fig. 4 Connecting the sample lines

CI/ADS550–EN Rev. D 7
5Fitting the dissolved oxygen sensor
Referring to Fig. 5:
1. Remove the top from the dissolved oxygen sensor container.
2. Unscrew the protective cap from the rear of the dissolved oxygen sensor (take care not to damage the delicate membrane on the
oxygen sensor face).
3. Fit O-ring A(3/4in. ID) onto the connector body B.
4. Fit sensor Conto connector body Bensuring the pins and sockets are engaged correctly and tighten connector nut Donto the
sensor C.
5. Slide thrust washer Eover connector body B.
6. Fit O-ring G(7/8in. ID) onto the sensor (at the flowcell end), then insert the complete assembly into flowcell F.
7. Secure the sensor assembly by screwing clamping screw Hinto the flowcell firmly – use finger-pressure only.
Do not overtighten.
8. Ensure the mating surfaces of the (red) sensor connector Iand connector block connection Jare clean and completely dry, then
connect the sensor connector Ito the connector block connector Jfirmly and tighten 1 turn clockwise.
6Calibrating the analyzer
Perform a calibration via the Calibration Level or Advanced Level transmitter menus – refer to CI/AWT540-EN.
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.
Fig. 5 Fitting the dissolved oxygen sensor
Caution. Do not attempt to calibrate the analyzer until the wet-section and transmitter are fully installed and ready for operation.
O-ring 7/8in.ID
O-ring 3/4in. ID
Red sensor connector –
see item (above)

CI/ADS550-EN Rev. D 05.2018
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We reserve the right to make technical changes or modify the contents of this document
without prior notice. With regard to purchase orders, the agreed particulars shall prevail.
ABB does not accept any responsibility whatsoever for potential errors or possible lack of
information in this document.
We reserve all rights in this document and in the subject matter and illustrations contained
therein. Any reproduction, disclosure to third parties or utilization of its contents – in
whole or in parts – is forbidden without prior written consent of ABB.
© ABB 2018 3KXA494550R4401
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Measurement & Analytics
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UK
Tel: [phone]
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