User`s guide

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7
7
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A
A
L
L
A
A
R
R
M
M
S
S
These are both visual (lamps/lights and display) and audible (fig.1)
• GAS alarms
According to the programming and the type of gas, the “Gas alarms” can be triggered
when the following values are exceeded:
- instantaneous (on 4 channels)
- minimum (on oxygen channel only)
- maximum (on 4 channels)
- Short Term Exposure Limit (STEL) which is a rolling 15-minute mean
for each channel equipped with a TOX cell.
- Time Limit Value (TLV/TWA) which is a rolling 8-hour mean for each
channel equipped with a TOX cell.
Thus as soon as one channel goes above the pre-set thresholds , the MX2000 delivers
a pulsed sound signal. At the same time, the lamp of the channel concerned and the 2
common lamps blink.
Simultaneously, one or more alarm messages appear (O
2
alarm, TLV, STEL, etc.),
together with the measurement value.