The check or calibration gases can also be carried in the case. See
TABLE 2-1 for the appropriate zero and span gas cylinders for your
Ultima/Ultima X Series Gas Monitor.
TABLE 2-1 shows the recommended calibration kit for Ultima and
Ultima X Series Gas Monitors. Typically, Cal Kit 41 uses a 0.25 LPM
regulator and a calibration cap to contain the calibration gas.
Cal Kits 40 and 54 use a 1.5 LPM regulator and no calibration cap.
If Cal Kit 41 is recommended and the application is such that the
calibration cap cannot be used (such as for a remote sensor
application), Cal Kit 40 may be used. However, any time Cal Kit 40 is
used, ambient wind conditions must be minimized to avoid a calibration
with increased sensitivity.
NOTE: The Ultima XIR uses Cal Kit 40 and does require a calibration
cap. This calibration cap (P/N 10041533) is shipped with
the product.
These calibration kits contain zero caps to use in place of
zero calibration gas. These caps can only be used when
the ambient air does not contain the gas the monitor is
detecting. If there is any doubt, use zero gas when zeroing
the Ultima X Monitor; otherwise, improper calibration
could occur.
Span Gas Values
The Ultima/Ultima X Monitor is factory-shipped with a preset span gas
value (TABLE 2-1). This span gas value can be changed via the Ultima
Controller; otherwise, the span gas must correspond to preset
concentrations. See Section 3 to change the span gas value. The span
gas value of Ultima/Ultima X Gas Monitor catalytic combustible models
are pre-set to one of the broad categories shown in TABLE 2-1. Specific
span gas values for all combustible models are listed under each
category given in TABLE 2-2.
Always calibrate for the least sensitive gas or vapor (higher
number category) expected to be measured (TABLE 2-2);
otherwise, instrument readings may be incorrect.
"
WARNING
"
WARNING
2-2
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