Thermo Scientific MaxQ SHKA4000 Operating Manual page 13

Section 2
General Specifications
2-4 Incubated and Refrigerated Shakers
The MaxQ 4000 series of bench top, incubated and refrigerated shakers
are available in either analog or digital control configurations:
• A-Class shakers: SHKA4000, SHKA4000-1CE, SHKA4000-5,
SHKA4000-6CE, SHKA4000-7, SHKA4000-8CE: control
temperature by a Proportional/Integral/Derivative (PID)
microprocessor-based controller. Solid-state control maintains time and
speed and is adjustable with rotary dials. Analog tachometer displays
speed in RPM, verifying accuracy of speed setting. Refrigerated units
feature environmentally safe CFC free insulation and coolant.
• E-Class shakers: SHKE4000, SHKE4000-1CE, SHKE4000-5,
SHKE4000-6CE, SHKE4000-7, SHKE4000-8CE: control
temperature, time and speed by a Proportional/Integral/Derivative
(PID) microprocessor-based controller that is adjustable with switches
on a keypad in 1 rpm increments. Refrigerated units feature
environmentally safe CFC free insulation and coolant. Flashing display
indicates power interruption. Pressing any key will clear display. Non-
volatile memory maintains speed and time set points in the event of a
power interruption. Speed and time set points are automatically
reactivated after power is restored.
• Temperature range and accuracy follow. All units have a uniformity of
±0.5°C at 37°C in flask:
Standard Temperature: SHKA4000, SHKA4000-1CE, SHKE4000,
SHKE4000-1CE,
10°C above ambient to 60°C, ±0.1°C at 37°C in flask.
High Temperature: SHKA4000-5, SHKA4000-6CE, SHKE4000-5,
SHKE4000-6CE,
10°C above ambient to 80°C, ±0.1°C at 37°C in flask.
Refrigerated: SHKA4000-7, SHKA4000-8CE, SHKE4000-7,
SHKE4000-8CE,
15°C below ambient to 60°C, ±0.1°C at 37°C in flask. Refrigeration
system needs to be turned off whenever the set point is at or above
32°C.
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