NEW BRUNSWICK SCIENTIFIC CO28IR, Руководство по эксплуатации

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21
New Brunswick Scientific User’s Manual
Temperature Alarms: the temperature control has alarm indicators for high and
low conditions that are activated whenever the actual temperature is 1
°
above or
below the setpoint.
CO
2
Alarms: the CO
2
controller has alarm indicators for high and low alarm
conditions that are activated whenever the actual CO
2
concentration is 1% above
or below the setpoint.
Both controls are equipped with audible alarms that are activated when either the
HIGH or LOW indicator is activated. The audible alarms can be muted for a single
alarm occurrence by pressing and holding either the UP (
S
) or DOWN (
T
) arrow key
for several seconds, until the alarm mutes.
There is a built-in delay of 15 minutes on the occurrence of a LOW alarm. This
prevents the audible alarm from activating every time the door is opened and the
temperature and CO
2
levels drop.
5.13 Draining the Water Jacket
To drain the unit, hook a suitable hose to the siphon tube located to the left of the fill
port mentioned above, start a siphon and allow the unit to empty into a suitable service
drain or container.