®
Environmental Equipment, Inc.
IMR EX440 User Manual
3632 Central Ave. St. Petersburg, FL 33711 – Phone: 727-328-2818 / 800-RING-IMR – Fax: 727-328-2826 – E-mail: [email protected] – Web: www.imrusa.com
THE PRIDE OF THE COMPANY – MADE IN THE USA
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4.7.1
Zero Calibration
Press
to move the cursor to
and then press
there will be a countdown as shown below.
The detector will then go to the auto-zero calibration interface after counting down finishes. You can also press
twice to enter the auto-zero calibration interface directly, seen below.
If zero calibration is successful, there will be a ” √” mark at the right side of the related gas name, if it is not
successful, there will be a “×” mark, seen below.
In the auto-zero calibration interface, you can press
to enter manual zero calibration as shown below.
