Thermo Scientific
imPULSE S.U.M. with Touchscreen Console User’s Guide
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Chapter 6
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Operating information
6.1 General hardware operating information
6.1.1 Heating performance
Heating times for the imPULSE S.U.M. vary based on liquid volume and
temperature, ambient or heating liquid temperature, and mixing rate.
WARNING:
Batch temperature should not exceed 40°C.
6.1.2 Protective earth grounding
For units with AC motors, protective earth grounding for the imPULSE
S.U.M. hardware system and the controller is provided through the
ground terminal of the power plug. Source power to the controller
must provide protective earth grounding to this terminal and secondary
ground cable in order to minimize the hazard of a possible shock in the
occurrence of a fault condition.
6.1.3 Circuit protection
Electrical components of the imPULSE S.U.M. are equipped with circuit
protection. The AC motor module used to power the mixer motor is
protected by the use of a resettable breaker. Other components and
the touchscreen console, are also protected with resettable breakers.
In the case of an electrical fault condition, these safety devices are
designed to protect the user from electrical shock, and prevent
electrical system components from being damaged. Fuses can be
replaced and/or the breakers reset once the fault condition is resolved.
Electrical breaker notes:
• The normal “On” setting for these breakers is in the “Up” position.
• A tripped breaker will be in the “Mid” position.
• The “Off” setting is in the fully “Down” position.
• To reset a tripped breaker, it must first be moved from the “Mid”
position to the “Off” setting (fully “Down” position) before moving it
to the “On” setting (fully “Up” position).
