MSA Ultima X Series Instruction Manual

• If the calibration output signal is enabled during
calibration, it will be held at the lockout value for two
additional minutes after END is displayed.
• When the span gas is removed from the sensor, the
sensor reading should change to show an ambient
condition.
• If a CAL FAULT appears on the display, this indicates:
• An unsuccessful attempt to calibrate the Ultima X
Series Monitor
• The Ultima X Series Monitor is operating with the
calibration parameters defined before the calibration
was attempted.
To extinguish the CAL FAULT flag, a complete calibration
procedure must be performed.
The Ultima X Series Monitor allows automatic zero and span
adjustments within a pre-defined range. It cannot make
corrections outside this range, such as when an empty or
wrong cylinder of gas is applied or failure to begin gas
flow within the allotted 30-second countdown occurs.
14. After a successful calibration, remove the tubing from the
Flow Controller and remove the Flow Controller from the
cylinder; return all items to their appropriate location in the
Calibration Kit.
XIR Calibration
Although a full calibration (zero and span) can be performed on
the Ultima XIR Gas Monitor, a no-gas calibration is sufficient to
properly calibrate the monitor. Typically, a zero adjustment is all
that is required for a full calibration. Normally, any degradation of
the sensor’s performance is associated with slight drifts in its
zero response which, in turn, will adversely affect its span
performance. Restoring the sensor’s zero is typically sufficient to
restore its span performance.
A zero adjustment is performed by pressing the ZERO button on
the Calibrator or Controller (or by using the optional push-button
calibration as outlined in Appendix A, "Optional Push-button
Calibration") and following the "Zeroing" instructions given earlier
in this chapter. After completing the zeroing function, perform a
span check to ensure proper operation. If the span check is
unsuccessful, perform a full calibration.
NOTE: For calibration of an XIR sensor operating with a Flow
Cap, temporarily replace the Flow Cap with the
Environmental Guard (packaged with the
instrument) and perform the following procedure.
Chapter 2, Start-up and Calibration
2-11

MSA Ultima X Series Specifications

General

Brand	MSA
Model	Ultima X Series
Category	Measuring Instruments
Language	English