Taylor-Wharton KRYOS Controller - Manual (Page 23)

21
KRYOS
By selecting choice #2 the user can go through the menu system and see all of the
settings in the control but in this mode, the user cannot change any settings. If either
the power-on or the menu passwords are forgotten, the user can reset the password
CZUZQJOHJOXIFOBTLFEGPSUIFQBTTXPSE5IF,3:04XJMMEJTQMBZBOtEJHJU
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, all
passwords are cleared.
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 for the following speeds: 300, 1200, 2400, 4800, 9600 or 19200 baud.
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 to Central Time, USA.
User Access Logs
The USER ACCESS LOGS ( MENU, 4, 3) track all personnel who enter the freezer
by asking for an identification number when the lid is opened. 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 identification 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-second
time frame, the log indicates that an unidentified user accessed the freezer.
Identification numbers range from 00 to 99.
Control Range
CONTROL RANGE can be accessed through the menu system of the control
(
MENU, 6, 2, 3, 2, 2). KRYOS maintains a temperature range around the user-
selected temperature. A tighter range maintains a temperature very close to the
selected temperature at the cost of greater LN
2
usage. A broad range provides
more temperature variability but the LN
2
usage is less. The range can be varied
from +1º to +15ºC above and below the selected temperature. The total range
therefore, is between 2ºC (1º below and 1º above the selected temperature) and
30ºC (15º below and 15º above the selected temperature). When the KRYOS is
attempting to control by temperature, it flashes “T.Recov” (Temperature Recovery) in
the center of the bottom line.
Freeze-Guard Options
Ice crystals introduced through the supply line are the primary cause of an overfill.
Freeze-Guard is a process designed to reduce the risk of an overfill. Freeze-Guard
consists of two options to reduce the risk of a frozen valve: 1) The maximum valve
open duration can be set by the user. (VALVE OPEN DURATION) 2) The valve can be
rapidly turned on and off trying to free it up (VALVE DE-ICING). Option 2 occurs if
21
KRYOS
By selecting choice #2 the user can go through the menu system and see all of the
settings in the control but in this mode, the user cannot change any settings. If either
the power-on or the menu passwords are forgotten, the user can reset the password
CZUZQJOHJOXIFOBTLFEGPSUIFQBTTXPSE5IF,3:04XJMMEJTQMBZBOtEJHJU
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, all
passwords are cleared.
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 for the following speeds: 300, 1200, 2400, 4800, 9600 or 19200 baud.
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 to Central Time, USA.
User Access Logs
The USER ACCESS LOGS ( MENU, 4, 3) track all personnel who enter the freezer
by asking for an identification number when the lid is opened. 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 identification 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-second
time frame, the log indicates that an unidentified user accessed the freezer.
Identification numbers range from 00 to 99.
Control Range
CONTROL RANGE can be accessed through the menu system of the control
(
MENU, 6, 2, 3, 2, 2). KRYOS maintains a temperature range around the user-
selected temperature. A tighter range maintains a temperature very close to the
selected temperature at the cost of greater LN
2
usage. A broad range provides
more temperature variability but the LN
2
usage is less. The range can be varied
from +1º to +15ºC above and below the selected temperature. The total range
therefore, is between 2ºC (1º below and 1º above the selected temperature) and
30ºC (15º below and 15º above the selected temperature). When the KRYOS is
attempting to control by temperature, it flashes “T.Recov” (Temperature Recovery) in
the center of the bottom line.
Freeze-Guard Options
Ice crystals introduced through the supply line are the primary cause of an overfill.
Freeze-Guard is a process designed to reduce the risk of an overfill. Freeze-Guard
consists of two options to reduce the risk of a frozen valve: 1) The maximum valve
open duration can be set by the user. (VALVE OPEN DURATION) 2) The valve can be
rapidly turned on and off trying to free it up (VALVE DE-ICING). Option 2 occurs if
21
KRYOS
By selecting choice #2 the user can go through the menu system and see all of the
settings in the control but in this mode, the user cannot change any settings. If either
the power-on or the menu passwords are forgotten, the user can reset the password
CZUZQJOHJOXIFOBTLFEGPSUIFQBTTXPSE5IF,3:04XJMMEJTQMBZBOtEJHJU
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, all
passwords are cleared.
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 for the following speeds: 300, 1200, 2400, 4800, 9600 or 19200 baud.
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 to Central Time, USA.
User Access Logs
The USER ACCESS LOGS ( MENU, 4, 3) track all personnel who enter the freezer
by asking for an identification number when the lid is opened. 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 identification 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-second
time frame, the log indicates that an unidentified user accessed the freezer.
Identification numbers range from 00 to 99.
Control Range
CONTROL RANGE can be accessed through the menu system of the control
(
MENU, 6, 2, 3, 2, 2). KRYOS maintains a temperature range around the user-
selected temperature. A tighter range maintains a temperature very close to the
selected temperature at the cost of greater LN
2
usage. A broad range provides
more temperature variability but the LN
2
usage is less. The range can be varied
from +1º to +15ºC above and below the selected temperature. The total range
therefore, is between 2ºC (1º below and 1º above the selected temperature) and
30ºC (15º below and 15º above the selected temperature). When the KRYOS is
attempting to control by temperature, it flashes “T.Recov” (Temperature Recovery) in
the center of the bottom line.
Freeze-Guard Options
Ice crystals introduced through the supply line are the primary cause of an overfill.
Freeze-Guard is a process designed to reduce the risk of an overfill. Freeze-Guard
consists of two options to reduce the risk of a frozen valve: 1) The maximum valve
open duration can be set by the user. (VALVE OPEN DURATION) 2) The valve can be
rapidly turned on and off trying to free it up (VALVE DE-ICING). Option 2 occurs if