Specifications

IEQ Chek  Operation Manual
14 1509-9001 Rev 1
BATTERY: This menu item provides the user with two different battery options that
can be selected. Battery types available are:
• NIMH (rechargeable)
• ALKALINE (disposable).
Using the ARROW DOWN button, scroll down to the battery type desired and
press the MENU button to accept.
NOTE: The IEQ Chek™ is supplied from the factory with (and configured for)
rechargeable NiMH batteries. If the user wishes to change from one type to
another (e.g., rechargeable to alkaline), he must first make the change through
the SETTINGS menu.
KEYPAD: This menu item allows the user to leave the keypad operational for anyone
using the instrument or lock it so the settings cannot be changed by anyone. A lock
symbol appears at the bottom of the LCD display to indicate the keypad lock has been
engaged. Anyone trying to use the keypad will encounter a display requesting the four
digit security code. The selections are as follows.
• NORMAL
• LOCKED
The instrument is supplied with a generic security code (1234) for all lockable
functions. Using the ARROW DOWN button, scroll down to the desired selection
and press the MENU button to accept.
DISPLAY: This menu item provides the user with four settings that can be adjusted
for the LCD.
BACKLIGHT: This menu item allows the user to set the LCD display backlight
to ON or OFF. Switching it off saves battery power. Use the
ARROW DOWN button or ARROW UP button to scroll to the
desired setting (ON or OFF) and press the MENU button to
make the change. Once the backlight has been switched “ON”
through the menu, it will remain on for about 30 seconds. After
that, the user can then push any button momentarily to activate
the backlight for short periods of time. The backlight remains on
for 30 seconds with each activation, then automatically turn off
to save battery power.
NORMAL: This menu item sets the display to the normal view of all
installed sensors and their real time gas values. Example: If a
user has blanked the LCD display or locked the keypad to
prevent tampering, the “normal” function resets the display.
BLANK: This menu item allows the user to “blank” the LCD display for
privacy. This does not affect the data logging function at all.
Using the ARROW DOWN button, scroll to the desired setting
and push the MENU button to accept. The LCD goes completely
blank. To view the LCD display again, push the MENU button
and you will be required to enter the security code.
CONTRAST: This menu item allows the user to adjust the contrast of the LCD
display. There are seven settings available (listed as ONE,
TWO, THREE, FOUR, FIVE, SIX, SEVEN). Using the ARROW
DOWN button, scroll down to the desired value and push the
MENU button to accept.