SECTION 7.0 - OPERATING INSTRUCTIONS
7.1 General
The Sentry II control system is designed for easy, touch-of-a-button operation with simple visual
notification of each operational mode with bright, illuminated indicators.
Please locate the enclosed plastic laminated reference chart, Part No. 8823066, near the Sentry II
control. This will provide unfamiliar operators with a quick reference to the basic operation and
features of the Sentry II control system.
Figure 32 - Sentry II Operating Controls
7.2 “Cool-Off-Wash” Rotary-Selector Switch
Select “Cool” for cooling modes, “Off” for sample agitation or when the milk cooler is not in use, and
“Wash” for cleaning modes.
7.3 Cooling Bottom Units Switch
1. With the rotary selector switch in the “Cool” position, press the “Cooling Bottom Units” switch
once to initiate the time-delayed start of the bottom refrigeration unit(s). The lamp will flash until
the programmable time-delay expires. After the time delay expires, the lamp will remain on, and
the bottom refrigeration unit(s) will energize if the temperature control is calling for cooling. The
programmable time delay may be adjusted between 0-120 minutes. See Sections 6.1 and 6.2 (1-10).
2. Pressing the “Cooling Bottom Units” selector switch a second time will by-pass the programmable
time delay and immediately start the bottom refrigeration unit(s).
3. To cancel the bottom or all refrigeration unit(s), turn the “Cool-Off-Wash” rotary switch to the “Off”
position.
Sentry II with Auto-Dosing Assembly Operating Instructions 52 Effective April 1, 2000
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