Specifications

Instruction 0019-9208
7
N
2
O Monitor 3010
2.7 Time Weighted Average Alarm
The 3010 monitor has a built-in Time Weighted Average alarm whose trip-
point is based upon the selected format—either 8 hours (TWA) or continu-
ous (twa). The factory default alarm level is zero (no alarm), but can be
activated by using the optional BACH-COM software.
When the alarm is tripped, the monitor emits a beeping tone that remains
on until the TWA/twa level falls below its trip point. The alarm can be
man u al ly turned OFF by press ing the f2 button which starts a new TWA/
twa reading, or the alarm can be turned OFF by simply switching OFF the
monitor.
2.8 Auto-Stablization Mode
This mode automatically corrects for drift when taking TWA/twa read ings.
Auto-stabilization will ef fec tive ly remove any effect of drift over periods of
many days.
Important! This mode is recommended only for long-term
monitoring.
Before entering the auto-stablization mode, fi rst zero the monitor per Sec-
tion 3.7 Zero Calibration.
Enter the auto-stabilization mode by simply attaching the supplied re-
strictor (Figure 1, Item C) to the monitor’s gas outlet (Figure 1, Item D),
and then turning ON the pump by pressing the f3 button. The mon i tor
will au to mat i cal ly detect the pres ence of the restrictor and enter the auto-
stablization mode.
Important! Use only the supplied restrictor, which has been
specially calibrated to work with the 3010.
Note: Only TWA/twa values are displayed while in the auto-
stablization mode—normal ppm read ings are not available.