
Ventis LS Product Manual
10
© Industrial Scientific Corporation
Oxygen (O
2
)
Nitrogen Dioxide (NO
2
)
Hydrogen Sulfide (H
2
S)
Percentage Volume: O
2
and CH
4
measurement unit
Percentage unit for combustible gases; display variations:
“% LEL” (English)
“% LIE” (French)
“% UEG” (German)
Parts Per Million: H
2
S, CO, SO
2
and NO
2
measurement unit.
Over-range: for any sensor in over-range, indicates the measured gas concentration is greater
than the measurement range of the sensor. Display variations:
“Or” (English and German)
“Sup” (French)
Negative Over-range: for any sensor in negative over-range indicates the measured gas
concentration is less than the negative measurement range of the sensor. Display variations:
“-Or” (English and German)
“InF” (French)
Bottom Row Icons
Definition
Battery level indicator; display variations:
1 bar < 33% charge remaining
2 bars = 34% - 66% charge remaining
3 bars = 67% – 100% charge remaining
Security Code: indicates code is set or to be entered.
Indicates IrDA communication is in-progress when the monitor is docked.
Indicates wireless communication is active when the monitor is NOT docked.
Short Term Exposure Limit: communicates STEL values. Display variations:
“STEL” ( English and German)
“VLE” (French)
Time Weighted Average: communicates TWA values. Display variations:
“TWA” (English and German)
“VME” (French)