ENMET SPECTRUM SP User Manual

Page 8

SPECTRUM SP Series

ENMET Corporation

2.1.6 Battery Status and Low Battery Alarms

The battery status display is accessed by pressing the

OPTION

pushbutton once. When this display is "Batt=OK", the battery

energy level is sufficient for operation of the instrument. In this condition, the confidence beep occurs every thirty seconds
when the instrument is not in alarm.

When the battery energy level is low the battery should be recharged, the battery status display reads "Batt=low", and the
instrument beeps once every five seconds to alert the user to the battery condition. Stop Using The Instrument And Exit An
Area That Could Be Hazardous To Safety Or Health. When the battery energy level is critically low, and battery failure is
imminent, the battery status display reads "Batt=LOW", and the instrument beeps once every two seconds. An alarm condition
at this point could cause the instrument to completely shut off. Recharge the battery immediately. The user cannot go past the
battery status display until the depleted battery is recharged.

When the battery energy level drops below the critically low point, the instrument automatically shuts off, and cannot be used
until the battery is recharged.

2.1.7 Data

The

SPECTRUM SP

retains the maximum and minimum gas concentration values encountered since turn-on, or since the data

was cleared and reset. To access this press the

OPTION

pushbutton three times; "see DATA" is displayed. Press the

SELECT

pushbutton; the maximum concentration since turn-on or last reset is displayed. Press the OPTION pushbutton again; the
minimum concentration since turn-on or last reset is displayed. Press the

OPTION

pushbutton again; "clr DATA" is displayed.

Pushing the

SELECT

pushbutton clears the data and resets it to the current concentration.

Pushing the

OPTION

pushbutton once more results in a display of both the countdown to the confidence beep and the internal

temperature of the instrument in degrees centigrade. Push the

OPTION

pushbutton three more times to return to the

operational display.

2.1.8 Backlight

To backlight the display for observation in a dark area, press and quickly release the

POWER / BACKLIGHT

pushbutton. The

LCD backlight comes ON for a period of 45 seconds and then turnes OFF automatically. The backlight can be turned off
sooner than 45 seconds by pressing the

POWER / BACKLIGHT

pushbutton a second time. Use the backlight feature

sparingly; it is a relatively high energy user, and extensive use rapidly depletes the battery.

2.2 Interference Gases

For each target gas, some gases other than the target gas cause a sensor response, and thus are termed "interference gases". A
compilation of known interference gases for the various target gases is given in Appendix B, along with gases that are known to
not cause a sensor response.