Rosemount Oxymitter 4000, Instruction Bulletin

Page: 53 / 127

IB-106-340
2-9
2-2. ELECTRICAL INSTALLATION (FOR OXY-
MITTER 4000 WITHOUT SPS 4000). All wiring
must conform to local and national codes.
Disconnect and lock out power before
connecting the unit to the power supply.
Install all protective equipment covers
and safety ground leads after installa-
tion. Failure to install covers and ground
leads could result in serious injury or
death.
To meet the Safety Requirements of IEC
1010 (EC requirement), and ensure safe
operation of this equipment, connection
to the main electrical power supply must
be made through a circuit breaker (min
10 A) which will disconnect all current-
carrying conductors during a fault situa-
tion. This circuit breaker should also
include a mechanically operated isolating
switch. If not, then another external
means of disconnecting the supply from
the equipment should be located close by.
Circuit breakers or switches must comply
with a recognized standard such as IEC
947.
NOTE
To maintain CE compliance, ensure a good
connection exists between the mounting
flange bolts and earth.
a. Remove screw (32, Figure 6-1), gasket (33), and
cover lock (34). Remove terminal block cover
(27).
b. Connect Line Voltage. Connect the line, or L1,
wire to the L1 terminal and the neutral, or L2
wire, to the N terminal (Figure 2-9). The
Oxymitter 4000 automatically will configure
itself for 90-250 VAC line voltage and 50/60 Hz.
The power supply requires no setup.
c. Connect 4-20 mA Signal and Logic I/O/
Calibration Handshake Leads (Figure 2-9).
1. 4-20 mA Signal. The 4-20 mA signal
represents the O
2
value and can also operate
the Model 751 Remote Powered Loop LCD
Display or any other loop powered display.
Superimposed on the 4-20 mA signal is
HART information that is accessible through
a Model 275 Handheld Communicator or
AMS software.
2. Logic I/O/Calibration Handshake. The output
can either be an alarm or provide the
handshaking to interface with an IMPS 4000.
For more information, refer to paragraph 5-3
and the IMPS 4000 Intelligent Multiprobe
Test Gas Sequencer Instruction Bulletin.
3. If autocalibration is not utilized, a common
bi-directional logic contact is provided for
any of the diagnostic alarms listed in
AC L1
AC N
+
+
-
-
4-20
GROUND
LUGS
LOGIC I/O/
CALIBRATION HANDSHAKE
LINE VOLTAGE
(85 TO 264 VAC)
AC TERMINAL
COVER
TERMINAL
BLOCK
AC LINE
VOLTAGE PORT
SIGNAL
PORT LEFT SIDE OF
OXYMITTER 4000
4-20 mA
SIGNAL
26170016
Figure 2-9. Terminal Block