ENMET SPECTRUM - Manual (Page 7)

SPECTRUM Series ENMET Corporation
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2.0 Features and Operation 2.0 Features and Operation 2.0 Features and Operation 2.0 Features and Operation
The features of the SPECTRUM are shown in Figure 1. These are:
DISPLAY An LCD upon which either the gas concentration, or prompts for the operational and
maintenance menus, are given.
PUSHBUTTON
SWITCHES There are three of these, as follows:
•••• POWER / BACKLIGHT The left hand switch when the instrument is held upright with the display facing the user.
•••• OPTION The middle switch.
•••• SELECT The right hand switch.
These switches are used to access and utilize the operational and maintenance menus.
SENSOR HOUSING A small cylindrical turret on the display surface; the membrane of the electrochemical
sensor is exposed to the atmosphere through the hole in the turret.
VISUAL ALARM A red LED which is ON whenever the target gas concentration is above the alarm point,
and also blinks periodically with the confidence beep.
AUDIO ALARM A small horn which is ON whenever the gas concentration is above the alarm point, until
the alarm is acknowledged. This horn also furnishes a confidence beep
COVER Retained with four screws, and removed to change the battery.
BATTERY The power source of the instrument, which is removed and replaced when depleted.