Heidolph Hei-CHILL, Руководство по эксплуатации

Страница: 18 / 92

Start-Up
18
Entering the temperature setting
Before placing the chiller into operation, the desired temperature setting needs to be
entered depending on the thermal fluid being used.
Warning:
Risk of poisoning! Risk of injury!
Each individual thermal fluid covers a certain temperature range. If
the temperature exceeds or falls below this temperature range, it
could damage the device and cause the thermal fluid to escape. There
is a risk of slipping and poisoning in the event of escaping thermal
fluids.
Check the permissible temperature range for the thermal fluid being
used and carefully set the temperature limits on the device.
The desired cooling temperature is maintained by defining the following two variables:
▪ Temperature limit :
This value defines the upper and lower maximum values that must not be exceeded.
If the temperature exceeds or falls below these values, a warning signal will sound.
▪ Temperature setpoint:
This value defines the cooling temperature for the thermal fluid. Until this setpoint is
achieved, the current temperature will fluctuate above and below this setpoint and
thus also between the upper and lower temperature limits.
Setting the temperature limits
Both values for the temperature limits are dependent on the thermal fluid being used.
Possible setting range:
Lower temperature limit “Lo” -12° C to 41° C
Upper temperature limit “Hi” -11° C to 42° C
Sensible temperature limits are:
Heidolph thermal fluid Temperature limits: “Lo” min. -12 °C
(also see chapter “Spare parts and accessories,
Accessories”)
“Hi” max. 42 °C