RKI Instruments Eagle Series - Manual (Page 30)

Diffusion Eagle Instruction Manual Display Mode • 25
TWA/STEL Screen
The TWA/STEL screen displays the time-weighted average (TWA) and the
short-term exposure limit (STEL) readings for toxic gases only.
The TWA reading is the average reading during the last 8 hours. If 8 hours
have not elapsed since the last time the TWA/STEL reading was cleared, the
average is still calculated over 8 hours. The missing time is assigned a 0 value
for readings.
The STEL reading is the average reading during the last 15 minutes.
Battery Voltage Screen
The Battery Voltage screen displays the minimum operating voltage and
present battery voltage. New alkaline batteries typically measure 6.0 V; fully-
charged Ni-Cd batteries typically measure 5.2 V. This screen also displays
when you turn on the Eagle.
NOTE: The remaining screens only display if your Eagle includes the data
logging option. If your Eagle does not include the data logging
option, press the DISP/ADJ button to return to the normal screen.
Date/Time Screen
The date/time screen displays the current date and time. You can set the date
and time in Calibration or Setup mode (see page 43).
W S
C O
2 S
A
0
0 . 0 P
P P
P M
M
T
H
T E L
0 . 0
0
B A T T E R Y
M I N . 4 . 5 V
B A T T E R Y
6 0 V . N O W
P
A 1 7 1
4 :
R 9 9 8
1 3 0