4
CI/AHM550–EN Rev. D
1
Sample requirements
The sampling point should be as near as possible to the wet-section
and must provide a thoroughly mixed representative sample.
The sample must conform to the following conditions:
Sample must contain less than 10 ppm suspended solids with
a particle size no greater than 60 µm.
(If particle sizes exceed 60 µm, use a 60 µm filter.)
Sample temperature must be within the range 5 to 55 °C
(41 to 131 °F).
Sample flow rates must be within the range 100 to
400 ml/min (6.10 to 24.4 to cu in./min.).
Sample must be at atmospheric pressure.
2
Locating 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.
3
Mounting the wet-section
Refer to Fig. 2 for wet-section dimensions. The wet-section weighs
4.5 kg (10 lb), excluding solutions.
Referring to Fig. 2:
1. Mark the wall using the dimensions shown.
2. Drill and plug 3 holes
A
and
B
in the wall suitable for M6
or
1
/
4
in. 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
the
wet-section is retained firmly against the wall.
5. Secure the wet-section to the wall using 2 fixings
B
.
Caution.
This equipment will be damaged if subjected to
freezing conditions.
Fig. 1 Locating the wet-section
Navigator 500
Navigator 500
Humidity
0 to 95 %
Avoid vibration
IP54
55 °C
(131 °F)
Max.
0 °C
(32 °F)
Min.
Maximum cable distance – transmitter to
wet-section 30 m (98 ft.)
Note.
Clearance – the enclosure doors can open 180°. If
mounting in a confined area, allow sufficient clearance for door
opening.
Note.
Fixing
A
cannot
be
adjusted
once
the
wet-section is placed over it.
Dimensions in mm (in.)
Fig. 2 Mounting the wet-section
Ø 7 (0.27)
210 (8.27)
480
(18.90)
185 (7.28)
290 (11.41)
2 Holes Ø 7
(0.27)
385
(15.16)
80.2
(3.15)
Allow sufficient clearance for
the door to open fully
281 (11.06)
