BT CGA-411 Operation Manual page 28

Display
bEEP followed by ON
or by OFF
SniF followed by a number
or by OFF
GAS followed by a number
or by OFF
AFCO followed by a number
or by OFF
CO followed by a number
or by OFF
LoO2 followed by a number
HiO2 followed by a number
Pu followed by a number
Air
Table 4. Display Sequence
Statement
The TRACK GAS beeper is active.
The TRACK GAS beeper is silent.
The TRACK GAS alarm is at value shown.
The TRACK GAS alarm is OFF.
The % GAS display alarm is at value shown.
The % GAS display alarm is OFF.
The air-free CO option is enabled.
The air-free CO option is disabled.
The PPM CO display alarm is at value shown.
The PPM CO display alarm is OFF.
The lower alarm limit for oxygen is at value
shown.
The upper alarm limit for oxygen is at value
shown.
The block limit for the pump is at value shown.
The instrument reverts to the normal operating
mode at AUTO ZERO.
Used only for turning beeper ON or OFF. The alarm
limit is set by SniF display (see below).
If ON, displayed number is % LEL (CGA-411) or
% GAS (CGA-412). Maximum setting is 20% LEL
or 1.00% GAS.
If ON, displayed number is % GAS. Maximum
setting is 1.00% gas.
Used only for enabling or disabling air-free CO
option.
If ON, displayed number is PPM CO. Maximum
setting is 200 PPM CO.
This alarm is always ON. Lower limit may not be set
less than 19.5% oxygen.
This alarm is always ON. Upper limit may not be set
higher than 23.0% oxygen.
Factory set number is 2500. Can be changed to adjust
the pump (see Section 12E).
Exit from set-up mode to AUTO ZERO (alternatively,
exit by placing selector switch at a position other than
AUTO ZERO).
25
Use/Comments