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Table 11. Datalogger Status Codes
Codes
General Codes
—
G
Sensor Codes
L
H
T
s
U
Dual alarm (Low and TWA alarms)
V
Dual alarm (High and TWA alarms)
u
Dual alarm (Low and STEL alarms)
v
Dual alarm (High and STEL alarms)
w
Dual alarm (TWA and STEL alarms)
O
Sensor is over-ranged
C
F
1
Alarm setpoint 1 (Low alarm)
2
Alarm setpoint 2 (High alarm)
3
Alarm setpoint 3 (TWA alarm)
4
Alarm setpoint 4 (STEL alarm)
Explanation
Normal operation
Backlight is on
Low alarm
High alarm
TWA alarm
STEL alarm
Calibrating
Sensor failure
Codes
Explanation
D
Calibration due date (in days)
E
Last calibration (in days)
Z
Auto-zeroing
Pump Codes
P
F
Pump failure
Battery Status Codes
—
B
Low battery alarm
K
Confidence beep is active
Alarm Status Codes
L
H
T
M
Multi-gas alarm
C
Q
Manual shutdown
P
S
Automatic shutdown
F
R
Real-time clock failure
GasAlertMax
MultiMediaCard (MMC)
Pump alarm
Battery OK
Low alarm
High alarm
TWA alarm
Calibration
Pump alarm
Self-test fail
45
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