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Instruction Manual
IM-106-340, Rev. 4.0
May 2006
4-5
Oxymitter 4000
Of the ten modes in Table 4-1, mode 1 through mode 7 are the alarm modes.
The factory default is mode 5 for Oxymitter 4000 units without an IMPS 4000
or SPS 4001B. In this mode, the output will signal when a unit alarm or a
CALIBRATION RECOMMENDED indication occurs.
Calibration Handshake Signal
If using an optional IMPS 4000 or SPS 4001B, the logic I/O must be
configured for calibration handshaking. Of the ten modes in Table 4-1, only
modes 8 and 9 are configured for calibration handshaking. For an Oxymitter
4000 with an IMPS 4000 or an SPS 4001B, the factory sets the default to
mode 8. In this mode, the logic I/O will be used to communicate between the
Oxymitter 4000 and the sequencer and to signal the sequencer when a
CALIBRATION RECOMMENDED indication occurs.
Table 4-1. Logic I/O
Configuration (as set at
HART/AMS or LOI)
*The default condition for an Oxymitter 4000 without an IMPS 4000 or SPS 4001B.
**The default condition for an Oxymitter 4000 with an IMPS 4000 or SPS 4001B.
Mode Configuration
0 The unit is not configured for any alarm condition.
1 The unit is configured for a Unit Alarm.
2 The unit is configured for Low O
2
.
3 The unit is configured for both a Unit Alarm and Low O
2
.
4 The unit is configured for a High AC Impedance/CALIBRATION
RECOMMENDED.
5* The unit is configured for both a Unit Alarm and a High AC
Impedance/CALIBRATION RECOMMENDED.
6 The unit is configured for both a Low O
2
and High AC Impedance/CALIBRATION
RECOMMENDED.
7 The unit is configured for a Unit Alarm, a Low O
2
, and a High AC
Impedance/CALIBRATION RECOMMENDED.
8** The unit is configured for a calibration handshake with IMPS 4000 or SPS 4001B.
CALIBRATION RECOMMENDED will initiate the calibration cycle.
9 The unit is configured for a calibration handshake. CALIBRATION
RECOMMENDED will not initiate the calibration cycle with the IMPS 4000 or SPS
4001B.