Honeywell Dolphin 99EXLG Series Quick Start Manual page 5

Warning: Explosion Hazard. Do not use external connectors in
areas known to be hazardous.
Warning: Explosion Hazard. Do not use the terminal in areas
known to be hazardous if the I/O cover is damaged, missing or
not properly installed (e.g., missing M2 screws).
Warning: Explosion Hazard. Do not use the terminal in areas
known to be hazardous if the terminal is damaged, for example:
a crack in the display or enclosure, missing keypad buttons or
side buttons, or the terminal battery well seal is missing or
cracked.
I/O Cover
All 99EX models intended for use in potentially explosive
atmospheres are shipped with an I/O Cover installed over
the I/O connector.
M2 Screws, Qty. 2
The I/O Cover must be included on all 99EXXXX-XXXXXXXI
models used in hazardous environments to meet compliance
requirements.
Removing the I/O Cover
You should carefully read all warnings starting on
before attempting to remove the I/O cover.
1
I/O Cover
2
page 2
3