7
Key in calibration.
Once the
KEY IN
option has been selected from the Calibration menu,
4 MA
will appear on the display and toggle
with the default display value for 4mA input (default = 0). Use the
U
and
D
buttons to adjust the 4mA display value
as desired, and then press
S
to continue.
20 MA
will now appear on the display and toggle with the default display value for 20mA input (default =
10,000).
Use the
U
and
D
buttons to adjust the 20mA display value as desired. Then press
S
to save the key in calibration
values and return to the operational display.
2 point calibration.
Once the
2POINT
option has been selected from the Calibration menu,
Point1
will appear on the display and toggle
with the default display value for the first calibration point (default = 0). Apply the Point 1 input signal to the LPI-LCD-6
display. Use the
U
and
D
buttons to adjust the display value as required, and then press
S
to continue.
Point2
will now appear on the display and toggle with the default display value for the second calibration
point
(default = 10,000). Apply the Point 2 input signal to the LPI-LCD-6 display. Use the
U
and
D
buttons to adjust the
display value as required, and then press
S
to save the 2 point calibration values and return to the operational
display.
If calibration was successful, the display will return to operating mode.
If
ERROR
appears on the display, then the calibration has not been saved. The most common cause of a
calibration error is an insufficient change in input signal between the 2 points. Press
S
to exit to the operational
display, or the
B
button to go back to the calibration menu. See Troubleshooting (below) for more information
on this error.
Reset.
If you select
RESET
, there is nothing further to configure. The LPI-LCD-6 display will restore the factory calibration
and return to operational display.
Backlight.
Enter the
B.LIGHT
menu (see page 6 under ‘Main Menu’).
The currently selected backlight time will appear. This is the amount of time that the backlight will remain on for after
the
L
button is pressed (default = 3 seconds). Use the
U
and
D
buttons to adjust the time from 1~9 seconds, and
then press
S
to save and return to the operational display.
Note
: The backlight charges off the input signal and is not intended to be used for extended periods of time. It may
appear dimmer if used repeatedly, or if used immediately after the LPI-LCD-6 display has been connected.
Contrast.
Enter the
CNTRST
menu (see page 6 under ‘Main Menu’).
The currently selected screen contrast will appear on the display. Use the
U
and
D
buttons to adjust the contrast
between
CNT. 1
and
CNT. 6
, and then press
S
to save and return to the operational display.
Troubleshooting.
ERROR
- This error appears during
2POINT
calibration and occurs when there is insufficient change in input signal
between the 2 points or when the range specified by the controller exceeds the LPI-LCD-6’s internal limitations. To
correct this error, please check your input signal and connections, and try calibrating again. Your display range may
have a maximum gain of 100 (i.e. a 2mA change on the input must not exceed 200,000 change in display counts).
ER.FLSH
- A flash error normally occurs when there is an unexpected loss of power to the instrument during setup.
If this error occurs, all settings will be restored to their factory defaults. To clear the error message, press the
S
button. Your previous setup cannot be recovered - please configure the instrument again.
ER. ADC
- If this error occurs, then there is a problem with the LPI-LCD-6’s onboard A/D converter. Pressing the
S
button on the front panel will clear the error message temporarily, however the display may stop responding to
changes in input signal. If you get this error, try powering the unit off and then on again. If the fault persists, contact
Intech Instruments Ltd for support.
ER.FCAL
- If a factory calibration error occurs, then the instrument's factory calibration has been lost. Pressing the
S
button on the front panel will clear the error message temporarily. Please contact Intech Instruments Ltd for support.
