IM 61A YHC1-E-A
3rd Edition: May 2008
Page 9 of 34
1 Lockout:
Indicates Enable / Disable status of Master Lockout feature.
2 PV Prompt:
In addition to the primary variable, multivariable HART devices have secondary,
tertiary, and sometimes more variables. When PV Prompt on the Lockout screen is
“Disabled” and a Save command is issued by the YHC, the handheld saves only the
primary variable. When PV Prompt is “Enabled” and a Save command is issued, the
handheld saves the HART parameter information for all variables present. The factory
default for PV Prompt on the Lockout screen is “Disabled”.
3 View Details:
This option takes the user to the
Lockout Details
screen listing all YHC parameters
that can be protected by lockout (see above right). Individual functions can be locked or, if preferred,
the lockout can be set to deny unauthorized access to all parameters. Press the number of the desired
menu item to toggle between Enabled and Disabled. Once satisfied with the setting, press the
Back
soft key to return to the
Lockouts
screen.
To enable the lockout options selected, be sure the display reads “1 Lockout: Enabled”. If it does not, press
the
Chng
soft key to toggle from “Disabled” to “Enabled”. A prompt will appear to “Enter Code: 0 0 0”.
Lockout Code
At this point the user will be prompted to enter a 3-digit lockout code. This code will be required to gain
access and change any menu item previously locked out.
The number keys of the YHC will not work
here.
Use the
Inc
rement,
Dec
rement
and
Next
Soft Keys to input a lockout code value. Alternatively you
may use the green keys for
Inc
rement and
Dec
rement functions. When you are satisfied with
the lockout code value, press
Store.
IMPORTANT: After the code is entered, the user must cycle the
power to activate the lockout!
BE SURE TO SAVE THIS CODE IN A SAFE PLACE IN THE EVENT YOU FORGET
THE NUMBER. ACCESS TO LOCKED-OUT FEATURES WILL BE DENIED WITHOUT THE PROPER CODE.
Note: the YHC is shipped with a factory lockout code of 3 2 1. The user must enter this code the first time
Lockout is used.
Disable Lockout
When you wish to use a function or edit a value that is protected by the lockout code, enter the three digit
Lockout code when prompted and press
Save
. You will now be able to use the function or edit the setting as
normal. Entering an incorrect code will display the message “Incorrect Code” and allow you to try again.
Changing the Lockout Code
To change the lockout code, disable the lockout function for all the parameters selected, shut the unit off, and
follow the procedures outlined above.
4 Clock / Timers
Clock Edit
The Clock Edit option allows the user to correct the date and time of the YHC’s internal clock. To edit the
clock, press the “4” key or scroll
Down
to
Clock Edit
and press the
Chng
soft key.
Choose a clock or date option to adjust by scrolling
Up
or
Down.
Press
Chng
to choose that option. Enter
the correct value using the numeric keypad. You will be asked if you wish to save the new data. Press
Yes
to
accept the new value. Pressing
No
will take you back to the previous menu without making any changes to
the YHC clock. When all the changes are complete, press
Chng
to save the new value.
