1188 Instruction Man DS5000.doc Page 9 of 16
Operation
– While ‘
PrES
’ is displayed press the ‘
↵
’ key to enter the subroutine. Use the
‘
12
’ key to run through the pressure options, until the required units are displayed. Press the
‘
S
’ key to escape or the ‘
↵
’ key to move to the next screen. Use the ‘
12
’ key to select
either line pressure ‘
LP
’ or sensor pressure ‘
SP
’ and then press the ‘
↵
’ key. Use the ‘
S
’,
‘
T
’, ‘
12
’, & ‘
↵
’ keys to enter the required pressure value. Pressing the ‘
↵
’ key conf irms
the entered value and returns to the ‘
LP
’ or ‘
SP
’ option screen. The user then has the option
of entering the other pressure or escaping using the ‘
S
’ key.
Note –
See section 11 on Pressure Correction for more detailed information.
Note
– The only way to leave the numerical part of this routine without saving is to allow the 60-
second timeout to occur.
9.5 4-20
Description
– The 4-20 menu option allows the user to set the operating range over which the
4-20mA output will span. The default setting is for the output to cover the full operating
range of the transmitter e.g. 4mA to equal –80°C and 20mA to equal 20°C. However, it is
possible to set a more focused span, such as 4mA to equal –60°C and 20mA to equal –20°C.
Operation
– While ‘
4-20
’ is display ed press the ‘
↵
’ key to enter the subroutine. The LCD
now displays either ‘
Hi
’ or ‘
Lo
’. Use the ‘
12
’ key to select the high or low range limit
whichever is required, and then press the ‘
↵
’ key.
Note
- If the ‘
’ key is pressed instead of the ‘
↵
’ key the DS5000 will return to the ‘
4-20
’ screen on
the base level.
The LCD will now display the current High or Low range value. Use the ‘
S
’, ‘
T
’, ‘
12
’, &
‘
↵
’ keys to enter the new value. Pressing the ‘
↵
’ key confirms and
saves
the new range
setting and returns to the ‘
Lo
’ or ‘
Hi
’ display. The other range limit can now be set by
following the same process if required. Pressing the ‘
S
’ key returns to the ‘
4-20
’ display.
Note –
Once the enter key is pressed to set either the high or low range limit, that value is written to
memory and will not revert to the previous value even if the 60 second timeout occurs.
9.6 VoLt
Description
– The VoLt menu option allows the user to set the operating range over which
the 0-5v output will span. The default setting is for the output to cover the full operating
range of the transmitter e.g. 0v to equal –100°C and 5v to equal 20°C. However, it is possible
to set a more focused span, such as 0v to equal –60°C and 5v to equal –20°C.
Operation
– While ‘
VoLt
’ is displayed press the ‘
↵
’ key to enter the subroutine. The LCD
now displays either ‘
Hi
’ or ‘
Lo
’. Use the ‘
12
’ key to select the high or low range limit
whichever is required, and then press the ‘
↵
’ key.
Note
- if the ‘
’ key is pressed instead of the ‘
↵
’ key the DS5000 will re turn to the ‘
VoLt
’ screen on
the base level.
