Tisch Environmental
PUF+ Operator’s Manual
31
CONFIGURATION
The CONFIGURE menu (shown below) allows for various operating parameter of the unit to
be configured. Details are provided below.
CONFIGURE
►
SET DATE: 04-20-07
SET TIME: 12:11:18
FLOW TYPE: AMBIENT
FLOW RATE: 260
LCD CONTRAST: 32
LOG INTERVAL: 5
TIMER MODE: TIMER
Setting the Date and Time
The SET DATE and SET TIME menu items allow the battery backup real-time clock to be
programmed. This clock provides the time base used for operation with the timer. The clock
automatically adjusts for leap years, but does not automatically adjust for daylight savings
time. If the date needs to be set, it should be set first. The date should be entered in the
format MMDDYY with leading zeros. For example, January 3
rd
, 2007 would be entered as
010307. The time should be entered in the 24 hour format HHMM with leading zero. For
example, 1:14 AM would be entered as 0114, while 1:14 PM would be entered as 13:14.
Setting the Flow Control Type
The FLOW TYPE menu item selects whether the unit will operate in AMBIENT conditions
or STANDARD conditions flow. Standard conditions are defined to be 760 mmHg and 25°C
Setting the Flow Rate
The FLOW RATE menu item determines the operating flow rate for the system and is
measured in liters per minute.
Setting the LCD Contrast
The LCD CONTRAST menu item controls the software contrast adjustment of the LCD.
Press the ENT key with the LCD CONTRAST menu item selected to change the LCD
contrast setting. Use the “+” and “-” keys to change the contrast level. The contrast level
can be set between 0 and 63. Press the “ESC” key when the contrast is at the desired level.
The default contrast level is 32. The LCD contrast adjustment can also be accessed by
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