YSI 5200 - Manual (Page 43)

YSI Incorporated 41 5200 Recirculating System Monitor
E n t e r t o S e l e c t
A l a r m H i g h
NOTE: You may enter the other Temperature System menu options (Control Menu, Alarms System and
Calibration), but your changes are not saved until you exit the Temp System menu as described
below.
Press the [
ESC
] key two times to exit the Temp System menu. You will be prompted to save your
changes.
S e t P o i n t M e n u
S a v e ? Y e s
Press the Enter [  ] key to save the changes, or press the [e] or [f] key to select No, then press the
Enter [
 ] key to exit without saving any changes.
Control Menu
After entering the Temperature set point and ranges, use the Control Menu to select which relay each
range or alarm will activate. At the beginning of the control range, the YSI 5200 will turn on the chiller or
heater, as required. These peripheral devices will remain activated to drive the temperature value back to
the optimal Set Point value, and once achieved, the peripheral device will be turned off. Since most
heaters and chillers have their own thermostat, these thermostats can be used as a backup temperature
control system. The heater thermostat should be set several degrees above your desired temperature and
the chiller several degrees below. If your desired temperature is 78°F then set your heater thermostat at
81°F and your chiller thermostat at 75°F.
The YSI 5200 has a chiller hold off feature. When you are cooling (running a compressor using a relay)
the relay will turn on immediately but if cycled off and back on it will not allow the relay to come back on
for about 8 minutes. This keeps compressors from burning up.
From the Temp System menu, press the [e] or [f] key until the Control Menu option appears.
C o n t r o l M e n u
E n t e r t o S e l e c t
Press the Enter [  ] key.
E n t e r t o S e l e c t
R a n g e L o w
Control Menu selections for Temp are Range Low, Range High, Alarm Low and Alarm High.
Relay Setup
From the Control Menu, press the [e] or [f] key until the Range Low option appears.
E n t e r t o S e l e c t
R a n g e L o w
Press the Enter [  ] key to select Range Low.
R a n g e L o w
R e l a y D i s a b l e d