Shellab SWBR27-2 - Manual (Page 8)

Reciprocating Water Bath 8
CONTROLS OVERVIEW
Figure 1. Controls Illustration
Power Switch
The Green I/O (On/Off) power switch, located in the top right hand corner of the control panel, controls all power to
the unit. It must be in the I position to be ON and illuminated before any systems are operational. The on/off switch
must remain easily accessible at all times.
Main Temperature Controller
This control is marked TEMPERATURE and consists of the digital display and UP and DOWN arrow pads for
inputting set point temperatures and calibration.
Over Temperature Safety Thermostat (OTP)
This control is marked SAFETY and is completely independent of the Main Temperature Controller. The Safety
guards against any failure of the Main Controller that would allow the temperature to rise past the set point. If the
temperature rises to the Safety set point, the Safety takes control of the heating element and allows continued use of
the water bath until the problem can be resolved or service can be arranged. The control is adjusted using a
screwdriver or a small coin. (See Setting Main Temperature Control for more information.)
Safety Light
This pilot lamp is located just above the OTP and comes ON whenever the Safety Thermostat is activated. This light
should never be on during normal operating conditions.
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