VWR 5000I Manual De Instrucciones página 9

5000Ir U a c
PPer MbIent ontrol
Please follow the procedure below if setting the 5000IR unit's temperature at/near the
room's ambient temperature.
For optimum temperature control in the chamber of the 5000IR unit, the upper ambient
control limit is to be set a minimum of 3°C above the measured room temperature.
Example: Measured (ambient) temperature is 22°C, the upper ambient control limit
should be set at a minimum of 25°C.
With the uinit at the heat/cool setting as described below, and in cool mode ("cool"
on time display), a temperature setting is displayed in the temperature window. The
default temperature setting of the 5000IR is 28°C. This is the factory set upper ambient
control limit. This setting can be adjusted between 20°C and 32°C by the end user.
• Any unit set point above the upper limit setting will heat only
• Any unit set point below 20°C will cool only
• Any set point between 20°C and the selected upper limit setting, up to 32°C,
the chiller and heater will both control chanber temperature
Heat/Cool Setting Procedure to Adjust Upper Ambient Control Limit
1. Put unit in standby mode.
2. Press and hold the speed down and time down time arrows simultaneously, now
press the standby button. Release all buttons.
3. Time display will not read "cool" and the temperature display will read 28°C. If
the time display reads "heat" press the time up/down arrow until the word "cool"
appears in the display.
4. Now you can set the upper ambient control limit. Using the temperature up/
down arrows adjust this temperature to be 3°C above the measured ambient
temperature.
5. Once the desired temperature is selected, press the standby button to return to
normal operation.
6. This procedure does not require recalibrating the unit.
l
IMIt
Additional 5000IR Notes:
• 5000IR units have a toggle switch on the left side. This switch must be in the
"on" position (depress "I") for the unit to function properly.
• For 5000IR units, make sure the chiller's hose is positioned to drain freely (into
a sink when possible).
• Do not allow the end of the chiller hose to become submerged.
• If chiller hose is positioned in a drain container, the container should have a
volume of at least 2 gallons if the unit will be unattended for 48 hours.
EN
8