8 General Operation
8.5.1Operation
The bath controller automatically switches off cooling when the bath is oper- ated above 50°C to protect the system from extreme pressures. The refrigera- tion system is also protected by a brownout and over voltage protection device that switches off power to the system when the line voltage is outside the safe operating range. The display indicates “LoLinE” when this condition exists. A time delay prevents the refrigeration from restarting for a short time after ade- quate line voltage has been restored.
8.5.2Important Refrigerant Information
The refrigeration system in this bath has been designed to perform at
The system is cascaded, meaning there are two separate systems with the first one chilling the second. This is required to reach temperatures below
The first stage refrigerant is an HFC known as
What this means to you:
•The cascade system is complex and its uncommon nature means that many local refrigeration service technicians may not be able to service it. If your bath needs survice, call GE Kaye Instruments Customer Service at
•The compressor manufacturer does not warranty their compressors when used with
8.6Temperature Controller
The bath temperature is controlled by a special digital temperature controller. The controller features a
The bath temperature is monitored with a platinum resistance sensor in the con- trol probe. The controller uses a
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