Industrial Scientific MX4 iQuad, Руководство пользователя

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Operation Guide
Rev 2.0 (p/n: 17140724) INDUSTRIAL SCIENTIFIC 19
Calibration
IMPORTANT: Industrial Scientific Corporation recommends that a
functional (“bump”) test be performed on every instrument prior to each
day’s use. A functional test is defined as a brief exposure of the monitor to
a concentration of gas(es) in excess of the lowest alarm set-point for each
sensor for the purpose of verifying sensor and alarm operation and is not
intended to be a measure of the accuracy of the instrument. If an
instrument fails to operate properly following any functional "bump" test,
full instrument calibration should be performed prior to use. If conditions
do not permit daily testing, bump tests may be done less frequently based
on instrument use, exposure to gas, and environmental conditions. The
frequency of testing is best determined by company policy or local
regulatory agencies.
Industrial Scientific further recommends that full instrument calibration be
performed using a certified concentration(s) of Industrial Scientific
calibration gas(es) monthly to ensure accuracy.
NOTE: CSA International requires the %LEL sensitivity to be tested
before each use. Any inaccuracy may be adjusted by calibration to 50%
LEL Methane.
NOTE: If the option to zero or calibrate in field is not enabled, the user will
not be able to calibrate the instrument in the field.
NOTE: If a security code is set, the user will not be able to enter the
configuration screens in the field. Please refer to Security Code Setting
section for more information.
The MX4 may be calibrated in the normal operating mode if field
calibration is enabled or in the configuration mode if field calibration is
disabled. Calibration is first initiated by advancing to the Zero screen if
calibration is to be performed in the normal operating mode or entering
the Configuration mode and then initiating the zero process. The MX4 has
two calibration options that may be selected in the Configuration mode.
The first is the Quick-Cal option in which all sensors will be calibrated
simultaneously using the appropriate blended cylinder of calibration gas.
The second option is the Standard-Cal option where sensors may be
calibrated individually using either blended or individual calibration gases.