Taylor-Wharton 24K w/ AutoTend - Manual (Page 26)

password by typing in 9999 when asked for the password, KRYOS will display an 8-
digit number. Call your distributor or Taylor-Wharton with the 8-digit number to obtain
a unique 8-digit number to type into the control. When this number is entered, the
passwords will be cleared and full access to the control is restored.
User Options
The user options menu choice covers all other control settings not already covered.
These include serial port settings, date and time settings, Lid Settings, Defog, Quick-
Chill, Temperature Control, Valve Freeze-Guard, Display brightness and Control
Information.
Serial Communications and RS-232 Settings
The KRYOS control system is designed with a 2-way serial communication feature.
RS-232 (MENU, 6,1) allows the user to configure the serial port to “talk” with other
Data Terminal Equipment (DTE). The control can send data through it’s serial port to
a computer, a printer or a modem. System logs, error logs or temperature logs are
always available for download. In addition to downloading data the control can accept
commands through the serial port. Control settings can be viewed or changed at any
time. Also remote diagnostics can be performed.
If the RS-232 is enabled the handshaking can be turned on and off. This feature
allows two devices to communicate when sending data. Also the baud rate can be
set. The following speeds can be chosen: 300, 1200, 2400, 4800, 9600 or 19200
baud. For an explanation of remotely detectable alarm conditions, see the “ALARMS”
section of this manual.
Time and Date Set
TIME AND DATE SET can be changed through the menu system. (MENU, 6,2,1).
The date and time will be set at the factory (Central Time, USA), however, different
time zones will need to adjust this according to their time zone. This control is Year
2000 compliant and operation will continue uninterrupted into the Millennium. A coin
cell battery backs up the date and time on the control.
User Access Logs
The USER ACCESS LOGS (MENU, 4,3) track all personnel who enter the freezer by
asking for an identification number. Identification numbers range from 00 to 99. When
this feature is enabled, the control asks for an identification number any time the lid is
opened. An entry is then recorded in the log indicating the time, date and identifica-
tion of the person entering the freezer. The user has 30 seconds to enter an ID code
(the 30 seconds is counted down on the screen). If an ID is not entered within the 30
seconds time frame, the log indicates that an unidentified user accessed the freezer.
Defog Timer Set
DEFOG TIMER SET can be changed through the menu system of the control
(MENU, 6,2,2,1). This is the time interval that the valve is opened when the user
manually presses the defog button. The possible choices are disabled through 90
seconds.
Manual Defog
The DEFOG TIMER (MENU, 6, 2,2,1) feature provides a burst of LN
2
to the freezer to
clear the fog when the user presses the defog button from the front panel. The
choices for this feature are Disabled through 90 seconds.