Emerson Rosemount Oxymitter 4000 Reference Manual page 53

July 2018
Calibration Handshake Logic I/O
1.
2.
Install Interconnecting Cable
1.
2.
3.
4.
Installation
WARNING
If using an IMPS 4000 or an SPS 4001B, install it in a non-hazardous, explosive-free
environment.
The output signal can be used to trigger an alarm or to provide a calibration
handshake signal to an IMPS or SPS 4001B.
a. 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
assignment 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.
b. The logic contact is self-powered, +5 VDC, with a 340 ohm series
resistance. 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.
Install cover (17, Figure 9-4) and secure with captive washer (20), cover lock (19),
and screw (18).
NOTE
If interconnect cable was not purchased with the Hazardous Area Oxymitter 4000,
consult the factory for the proper wire type and gauge.
Remove cover (17, Figure 9-4) from the junction box (24). Connect the electronics
end of the interconnecting cable (30) to the "FROM PROBE" side of the terminal
block (Figure 2-10).
WARNING
If using an IMPS 4000 or an SPS 4001B, install it in a non-hazardous, explosive-free
environment.
Loosen screw (18, Figure 9-3), cover lock (19) and washer (20) at the probe head.
Remove cover (17).
See (Figure 2-10). Connect the heater power leads, the thermocouple leads, and
the oxygen signal leads of the interconnecting cable to the terminal block. The
cable leads are tagged for polarity. To avoid a shock hazard, the heater power
terminal cover must be installed.
Install covers (17, Figure 9-3 and Figure 9-4) and secure with captive washers (20),
cover locks (19), and screws (18).
Rosemount Oxymitter 4000
53