Instruction Manual
IB-106-340C Rev. 4.1
July 2004
Rosemount Analytical Inc. A Division of Emerson Process Management Installation 2-9
Hazardous Area Oxymitter 4000
To meet the Safety Requirements of
IEC 1010 (EC requirement), and ensure
safe operation of this equipment, con-
nection to the main electrical power
supply must be made through a circuit
breaker (min 10 A) which will discon-
nect all current-carrying conductors
during a fault situation. This circuit
breaker should also include a me-
chanically 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.
The probe and probe abrasive shield
are heavy. Use proper lifting and car-
rying procedures to avoid personnel
injury.
To maintain explosion-proof protec-
tion, all cable entry devices and
blanking elements for unused aper-
tures must be certified flameproof,
suitable for the conditions of use and
be properly installed.
a. Remove screw (18, Figure 9-3), cover lock
(19), and captive washer (20). Remove
cover (17) from terminal block (15).
b. Connect Line Voltage. Connect the line, or
L1, wire to the L1 terminal and the neutral,
or L2 wire, to the N terminal. See Figure
2-9. The Hazardous Area Oxymitter 4000
automatically will configure itself for 90-250
VAC line voltage and 50/60 Hz. To avoid a
shock hazard, the power terminal cover
must be installed.
c. Connect 4-20 mA Signal and Calibration
Handshake/Logic I/O Leads (Figure 2-9).
1. 4-20 m A Signal. The 4-20 mA signal
represents the O2 value and can also
operate the Model 751 Loop LCD Dis-
play or any other loop powered display.
Superimposed on the 4-20 mA signal is
HART information that is accessible
through a Model 275/375 Handheld
Communicator or AMS software.
If using an IMPS 4000 or an SPS 4000,
install it in a non-hazardous, explosive-
free environment.
2. Cal ibration Handshake/Logic I/O. The
output signal can be used to trigger an
alarm or to provide a calibration hand-
shake signal to an IMPS or SPS 4000.
If autocalibration is not utilized, a
common bi-directional logic contact is
provided for any of the equipment
alarms listed in Table 8-1. The assign-
ment of alarms that will actuate this
contact is modified by one of seven
additional configuration settings (mode
1 through mode 7) listed in Table 4-1.
The logic contact is self-powered,
+5 VDC, with a 340 ohm series resis-
tance. An interposing relay is required
if the logic contact will annunciate a
higher voltage device, such as a light
or horn. An interposing relay may also
be required for certain DCS input
cards. A Potter & Brumfield model
R10S-E1Y1-J1.0K 3.2 mA DC (or
equal) interposing relay will be
mounted where the contact wires
terminate in the control/relay room.
d. Install cover (17, Figure 9-3) and secure
with captive washer (20), cover lock (19),
and screw (18).
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