3.10 Locking And Unlocking The Keypad; 3.12 Checking Code Date Revision - Omega CYD211 User Manual

3.10 LOCKING AND UNLOCKING THE KEYPAD

The keypad lock feature prevents accidental changes to parameter values.
When the keypad is locked, only the alarm reset function of the Select key
still functions. All other key functions are ignored.
To lock the keypad, press and hold the Enter key for 10 seconds. The
display will show "
Enter key and the display will return to normal operation.
To unlock the keypad, press and hold the Enter key for 10 seconds. The
display will show "
the Enter key and the display will return to normal operation.
3.11 RESETTING THE MODEL CYD211 TO DEFAULT VALUES
It is sometimes necessary to reset instrument parameters that are stored in
nonvolatile memory called EEPROM. The default values of the Model
CYD211 are shown below in Table 3-6. Resetting to default values does not
affect the user curve or the calibration data.
To reset the Model CYD211 to default values, press and hold both the s or
t keys for 10 seconds. All of the LED digits will illuminate when the
memory has been reset. Release the buttons and the display will return to
normal operation.
Parameter
Input Type
Input Curve
Display Units
Alarm Function
Alarm High
Alarm Low
Alarm Deadband

3.12 CHECKING CODE DATE REVISION

To check revision date of the firmware code, press and hold the Select key
until the display shows the code date. It is in the format of MMDDYY,
where MM is the month, DD is the day, and YY is the year of the code.
Release the key and the display returns to normal operation.
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Omega Model CYD211 User's Manual
" indicating the keypad is now locked. Release the
" indicating the keypad is now unlocked. Release
Table 3-6. Model CYD211 Default Values
Default
Silicon Diode
DT-470
K
Off
0 K
0 K
0 K
Parameter
Alarm Latch
Analog Mode
Analog Range
Relay 1 Mode
Relay 2 Mode
Keypad Lock
Display Brightness
Default
Off
Voltage
5
Off
Off
Unlocked
8
Operation