Connect to power, Figure 11 – Hach-Lange POLYMETRON 9611 sc Installation User Manual
Page 13
Figure 11 Connections on the main circuit board
1 Dual monitor
connection
4 Digital inputs
7 Power out
2 Smart probe
connection
5 Power in
8 Power out LED (on =
power is connected to
the analyzer)
3 4–20 mA outputs
6 Power switch and
LED (on = analyzer is
on)
9 Relays
Connect to power
W A R N I N G
Electrocution hazard. Use a crimp-on ring terminal on the main
protective earth connection.
W A R N I N G
Electrical shock and fire hazards. Make sure that the supplied cord and non-
locking plug meet the applicable country code requirements.
W A R N I N G
Electrocution hazard. Make sure that the protective earth conductor
has a low impedance connection of less than 0.1 ohm. The connected
wire conductor must have the same current rating as the AC mains line
conductor.
N O T I C E
The instrument is used for a single phase connection only.
Cord installation: The manufacturer recommends to use the optional
cord and sealing gland. Refer to the maintenance manual for the
replacement parts list. For a customer-supplied cord, three 18-gauge
conductors are required and the cord must be shorter than 3 meters
(10 feet). Use a sealing type strain relief to keep the environmental rating
of the instrument. Refer to
on page 3. To connect power
and
.
English 13