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1.0 INCUBATOR FEATURES
Your incubator is constructed from stainless steel and has high efficiency
polyurethane insulation. The refrigeration & electrical system is located in the
top housing underneath a removable lid. Inner glass doors allow you to view
the contents of your incubator without disturbing the internal atmosphere. The
chamber is sealed allowing water to be added to the base for keeping
products / samples in a high humidity environment. (See section 7.0 for more
details).
1.1 HEATING & COOLING SYSTEM
The unique LEEC temperature control system ensures exceptionally good
stability. A powerful refrigeration system provides cooling whilst low wattage
heaters provide heating. A door micro switch stops the internal fan(s) when
the door is opened to minimise temperature disturbance.
1.2 JUMO TEMPERATURE CONTROLLER
The temperature is accurately controlled by a Jumo dTRON
316 microprocessor controller that uses a signal from a
PT100 type sensor located in the chamber. Its purpose is to
control the cooling system and the current supplied to the
heaters. Operating temperatures can be programmed into
this controller electronically. Two set points (SP 1 & SP 2)
can be programmed which in turn allows the cabinet to cycle between two
different temperatures e.g. day & night, or operate constantly at one
temperature e.g. day.
1.3 TLK38 OVER & UNDER TEMPERATURE SAFETY CUT OUT
A TLK38 digital cut out protects the contents of your incubator. When the
chamber temperature goes out of limits, the appropriate cut out will operate
an audible alarm and visible red neon. Two reset buttons are provided below
the cut out for you to manually reset the offending system.
1.4 SMITH'S DIGITAL TEMPERATURE CYCLING TIMER
The light grey coloured Smiths digital 24 hour timer can be programmed with
several ON & OFF times for cycling between two pre-programmed
temperatures over a 24 hour period. The LCD display shows the current time
and cycle stage. The timer has an integral switch labeled ON, OFF & TIMED.
This switches between SP 1 & SP 2 temperatures, which are programmed
into the temperature controller. The switch positions correspond to:
ON - Incubator will operate constantly at the HIGH
(SP 1) temperate set point e.g. +37°C.
OFF - Incubator will operate permanently at the LOW
(SP 2) temperature set point e.g. +20°C.
TIMED - Incubator will cycle between HIGH & LOW (SP 1 &
SP 2) temperatures at the pre-programmed times.
ON & OFF times can be programmed into the timer as detailed in the
instructions at the back of this manual.
