ABB AZ200 770 Manual page 6

3.5.2 Making connections
Referring to Fig. 3.4, make mains connections as detailed in steps
1 to 5. The mains power supply must be 115 or 230 V AC, 50 / 60
Hz depending on the pump model (refer to Fig. 3.3 and Table 1.1,
page 1).
1. Prepare the incoming power supply cable as follows:
a. cut the outer sheath back to leave 100 mm (4.0 in.)
A
sleeved wires
b. cut the sleeved wires back to leave 5 mm (0.2 in.) tails
2. Pass the cable through cable gland
3. Connect the neutral (blue wire
match the existing connection.
4. Connect the earth wire E to the pump's internal earth
connection.
5. Connect the live (brown) wire
match the existing live connection.
Warning. Ensure the live (brown) wire is protected with a
1.6 A Type F fuse.
6. Refit the pump cover by reversing the procedure in Section
3.4.
A
B
D
F
E
C
Fig. 3.4 Electrical Connections
6 INF09/027 Rev. D | Endura AZ20 oxygen monitor | Pumped reference air unit
B
C
.
D
) to the terminal block to
F
to the terminal block to
3.6 Reference air connections
Referring to Fig. 3.5:
1. It is important that air to the pump inlet is clean and dry.
Caution. Failure to observe this requirement causes
damage to both the pump and the probe.
If necessary, connect a pipe to the pump (suction) inlet
and ensure the other end of the pipe is located in a clean, dry
area.
2. Connect the pumped reference air outlet
reference air inlet on the probe – refer to individual probe
manuals for reference air connection details.
C
3. A flow restrictor
correct flow is delivered without further regulation from the
pump. Ensure the flow restrictor is in place to protect pump
components.
A
Inlet (Suction)
See step 1
Fig. 3.5 Pumped Reference Air Unit Inlet and Outlet
3 Installation
B
directly to the
in the pump outlet line ensures the
B
Outlet
(Delivery)
C
A