Appendix: Instrument Specifications
MSA
ULTIMA X ® Series
GB
81
1)
See Calibrator/Controller manual for ALERT option.
2)
SWAP delay signal is 60 s if enabled, otherwise 0 s.
3)
See Calibrator/Controller manual for SWAP delay options.
4)
Alarm operation will follow if the alarms are enabled.
Sensor
missing /
Countdown
OFF
ON
3.0 mA if SWAP delay
time-out expired
2)
,
SWAP delay disabled
or FAULT
De-energised if SWAP
delay timeout
2)
expired,
SWAP delay
3)
disabled
or FAULT
Last gas value, if
SWAP delay enabled
and SWAP delay
3)
timeout not expired
Energised, if SWAP delay
3)
enabled and SWAP de-
lay timeout has not ex-
pired
2)
.
Sensor
calibration
OFF
ON
3.75 mA if calibration
signal enabled and
ALERT option
1)
ena-
bled; gas value if cali-
bration signal is
disabled
Energised if ALERT op-
tion disabled
21.0 mA for 02 if cali-
bra-tion signal ena-
bled and ALERT
option
1)
disabled
De-energised if ALERT
option enabled
1)
Calibration
4-20
OFF
ON
4 mA, if 4 mA calibra-
tion selected
Energised if ALERT op-
tion disabled
20 mA, if 20 mA
calibration selected
De-energised if ALERT
option enabled
1)
Calibration
fault
OFF
ON
Gas value
De-energised two
seconds every minute
Under-
range
OFF
ON
3.0 mA
De-energised
Overrange/
LOC
ON
4
OFF
4
21 mA
Energised
Operating
mode
LED
4 – 20 mA
Fault relay
GREEN RED
