Connecting The Sample Lines - ABB Navigator 550 Manual

4

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.

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.
Referring to Fig. 4:
1. Connect the sample outlet tubing
C
outlet .
2. Connect the drain tubing
3. Connect sample inlet tubing
G
connector . Alternatively, nylon tubing 6 mm or
Fig. 4 Connecting the sample lines
6
A
using flexible PVC tubing 10 mm (
D
using flexible PVC tubing 10 mm (
F
(typically stainless steel), 6 mm or
1
/
4
3
/ in.) ID fitted to barbed connector
8
3
/ in.) ID fitted to the barbed connector at the base of drain valve
8
1
/ in. OD (depending on customer requirement) to the bulkhead
4
in. OD could be fitted with suitable inner support fitting.
B
at the base of sample
E
.
CI/ADS550–EN Rev. D