ROTINA 420 ROTINA 420 R - Hettich Instruments

EN
21 Displayed centrifugation data after switch-on.
After switch-on the centrifugation data from program 1, or from the last program that was used, is displayed.
If the rotor is at standstill, this can be set as follows:
• Keep the PROG key held down for 8 seconds.
After 8 seconds, ∗∗∗ Machine Menu ∗∗∗ appears in the display.
• Press the PROG key as often as necessary until the ->Settings is displayed.
• Press the START key. The SOUND / BELL = off/on is displayed.
• Press the PROG key as often as necessary until Start program = Last/First is displayed.
• Use the adjusting knob to set Last or First.
Last = the program used last, First = program 1.
• Press the START key to save the setting.
Briefly, Store Settings ... is displayed as confirmation, followed by -> Settings.
• Press the OPEN / STOP key once to leave the "Settings" menu or press the OPEN / STOP key twice to leave the
"Machine Menu".
22 Set temperature unit (only for centrifuge with refrigeration)
The temperature can be entered in degrees Celsius (°C) or in degrees Fahrenheit (°F).
When the rotor is at standstill, the temperature unit must be set as follows:
• Keep the PROG key held down for 8 seconds.
After 8 seconds, ∗∗∗ Machine Menu ∗∗∗ appears in the display.
• Press the PROG key as often as necessary until the ->Settings is displayed.
• Press the START key. The SOUND / BELL = off/on is displayed.
• Press the PROG key as often as necessary until Temp Unit = Celsius/Fahrenheit is displayed.
• Use the adjusting knob to set Celsius or Fahrenheit.
• Press the START key to save the setting.
Briefly, Store Settings ... is displayed as confirmation, followed by -> Settings.
• Press the OPEN / STOP key once to leave the "Settings" menu or press the OPEN / STOP key twice to leave the
"Machine Menu".
23 Setting program locks
The following program locks can be set:
LOCK 1 LOCK 1 is displayed in the " " field.
Programs can only be called up but not modified.
LOCK 2 LOCK 2 is displayed in the " " field.
No programs can be called up and modified.
The centrifuge can be controlled via the interface (only for centrifuge with interface).
LOCK 3 No status display.
No program locking. Programs can be called up and modified.
• Keep the PROG key held down for 8 seconds.
After 8 seconds, ∗∗∗ Machine Menu ∗∗∗ appears in the display.
• Press the PROG key as often as necessary until the ->Change LOCK is displayed.
• Press the START key.The lock status is displayed.
If no PIN has been entered, LOCK = 〈3〉 confirm by START, for example, will be displayed.
If a PIN has been entered, LOCK = 3, for example, will be displayed.
• Use the adjusting knob to set the desired lock status.
If a PIN has been entered, PIN = ---- confirm by START will be shown. In this case, a valid PIN has to
be entered with the adjusting knob and then the START button has to be pressed before the lock
status can be set.
• Press the START key to save the setting.
Briefly, Store LOCK 2 ... is displayed as confirmation, followed by -> Change LOCK.
• Press the OPEN / STOP key once to leave the "Change LOCK" menu or press the OPEN / STOP key twice to leave
the "Machine Menu".
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