Thermo Scientific 2210AM Manual page 17

All connections must conform to local safety standards.

Figure 7. Electrical wiring ports
Table 1. AC power terminal wire connections.
Analyzer North
Terminal America Wire
Destination Color
HOT or L ( Line) black
Protective Earth
green
Ground (PG)
Neutral (n) white
Figure 8. AC power connections
When using a UL/CSA approved power
NOTE: cord, loop cord through clip retainer as
shown in Figure 8 for proper strain relief.
12 | Installation Environmental Considerations
CAUTION
Analog Outputs Connections
European
Wire Color
The analyzer is equipped with two isolated analog outputs.
The analog outputs can be programmed to be any one of the
brown
following: 0-20 mA or 4-20 mA or reverse acting i.e. 20–0 mA
or 20–4 mA. The range is also programmable and can be
green with
scaled according to application needs.
yellow tracer
The outputs have a common isolation from the main system
blue
and can drive up to a 900 Ohms load.
Please refer to Figure 9, and Table 1, for signal terminal
connection detail.
Alarm Connections
The analyzer has five level sensor inputs that accept a dry
contact closure signal to indicate the state of the level
sensors. Input 5 is typically assigned for sample. The analyzer
AC POWER
CONNECTIONS
is equipped with four relays that have voltage-free contacts.
Two contacts: Normally Open (NO) and Normally Closed (NC)
with a Common (C). The relay contacts are rated for use at a
maximum of 240 V and 2 A.
The terminal connectors accept wire gauge up to 14 AWG.
The terminal strip is located at the bottom of the electronics
cabinet (see Figure 9).
The analyzer is intended for use only
with single-phase power. The analyzer
is not equipped with a power switch,
therefore a circuit breaking device such
as a circuit breaker should conform to
local safety standards and must be fitted
before the final installation. The circuit
breaker must be in close proximity to the
analyzer and within reach of the user, and
must be marked clearly as the
disconnection device for the analyzer.
ALL CONDUCTORS NEED TO HAVE
MINIMUM INSULATION RATING OF
75°C.
Orion 2210AM Ammonia Analyzer