®
Environmental Equipment, Inc.
IMR EX660 User Manual
3632 Central Ave. St. Petersburg, FL 33711 – Phone: 727-328-2818 / 800-RING-IMR – Fax: 727-328-2826 – E-mail: info@imrusa.com – Web: www.imrusa.com
THE PRIDE OF THE COMPANY – MADE IN THE USA
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5.5
Gas Detection
The device monitors and displays gas concentration in real time. Once the gas concentration reaches the preset
alarm point, the alarms will trigger.
Note:
Do not block the sensor cover while device is in use.
To prolong sensor life span, external filters are suggested while device is in use.
Prolonged shelf storage, extreme physical impact and excessively high concentration of gas may cause
zero drift of the gas sensors. If the reading in clean air is not zero, preform a zero calibration as outlined
in Section 6.7 and 6.8.
5.6
Status Review
In normal detection mode, press
and the screen will show current temperature, time, STEL value
①
,
TWA value
①
, the maximum level of gas
②
, and the minimum level of gas
②
since power on.
Note:
①
Only for toxic gas.
②
Only for oxygen.
5.7
Auto Zero Calibration
In normal detection mode hold both
and
for about 1 second. You will be prompted for a password.
After inputting the correct password the device will enter into the advanced settings menu.
Move the cursor to
and press
. The device will automatically preform a zero calibration. Once
completed a “√” icon displays for the completed gas sensor(s) and “×” for the failed gas sensor(s).
