MSA Ultima X Series Instruction Manual

NOTE: For the range of 25% oxygen, the calibration signal
will be 21 mA. Oxygen can be set to a 3.75 mA
calibration signal (see Ultima Controller manual).
Calibration Kit
Calibration Kits are available for the Ultima X Gas Monitors. For
the recommended calibration kit, see Ultima Controller/Calibrator
manual (P/N 813379).
Ultima X Series Gas Monitor Calibration
Procedure
Read all calibration instructions before attempting an actual
calibration. Also, identify and become familiar with all of the
calibration components. During the calibration, it is necessary to
quickly apply the span gas to the unit. Prior connection of the
calibration components will aid in the ease of unit calibration.
The only true check of any gas monitor’s performance is to apply
gas directly to the sensor. The calibration procedure must be
performed regularly.
INITIAL Calibration
When the unit is powered up for the first time, or when a new
sensor module is placed in the unit, an INITIAL Calibration is
recommended. This procedure enables the unit to gather data about
the sensor to make accurate decisions for the CHANGE SENSOR
function and the CAL FAULT function to work properly. During
normal use, INITIAL calibration should only be used when a
regular calibration will not clear a fault condition due to use of
incorrect calibration gas or another similar situation.
The INITIAL calibration is accomplished by:
• simultaneously pressing the ZERO and CALIBRATE buttons
of the Ultima Calibrator or
• pressing and holding SPAN button on the Ultima Controller or
• using the optional push-button calibration as outlined in
Appendix A, "Optional Push-button Calibration".
• The display should show "APPLY ZERO GAS"
• The word "ICAL" on the display distinguishes an INITIAL
Calibration from a regular calibration. If "ICAL" does not
appear, abort the calibration; then, retry the above
procedure.
NOTE: The zero or calibration process can be aborted at any
time simply by pressing any button during the
30-second countdown on the Calibrator while aiming
at the unit or by pressing and releasing the
push-button if push-button calibration is available.
Chapter 2, Start-up and Calibration
2-6

MSA Ultima X Series Specifications

General

Brand	MSA
Model	Ultima X Series
Category	Measuring Instruments
Language	English