red lion PAXLA - Advanced Programming and Calibration; Current and Voltage Calibration

-8-
Drawing No. LP0722 Released 2018-01-19
5.3 Module 3 - dIsplay and Front panel Button
paraMeters (3-dSP)
PAR

Front Panel
Display
Select Enable
Display
Update Time
Front Panel
Reset Enable
Programming
Security Code
Zero Display
W/Display
Reset

   

Display
Intensity
Level


Display
Scroll
Enable

Units Label
Backlight
PARAMETER MENU


1
dSP-t
DISPLAY UPDATE TIME
This parameter sets the display update time in seconds.
1
0.5
2
seconds
The yES selection allows the SEL button to toggle through the enabled
displays.
FRONT PANEL DISPLAY SELECT ENABLE (SEL)


yES
SEL
yES NO
This parameter enables the RST button or user input to zero the input
display value, causing the display reading to be offset.
Note: For this parameter to operate, the RST button or User Input
being used must be set to dSP and the Input value must be displayed. If
these conditions are not met, the display will not zero.
ZERO DISPLAY WITH DISPLAY RESET


NO
ZErO
yES NO
The yES selection allows the display to automatically scroll through the
enabled displays. The scroll rate is every 4 seconds. This parameter only
appears when the MAX or MIN displays are enabled.
DISPLAY SCROLL ENABLE


NO
ScroL
yES NO
Enter the desired Display Intensity Level (1-3). The display will actively
dim or brighten as levels are changed.
DISPLAY INTENSITY LEVEL
1 to 3


3
d-LEV
This selection allows the RST button to reset the selected value(s).
FRONT PANEL RESET ENABLE (RST)


dSP
rSt
HI-LO
LO
HI
NO dSP


OFF
b-LIt
UNITS LABEL BACKLIGHT*
The Units Label Kit Accessory contains a sheet of custom unit
overlays which can be installed in to the meter’s bezel display assembly.
The backlight for these custom units is activated by this parameter.
ON OFF
Current Calibration
1. Connect the negative lead of a precision DC current source with an
accuracy
of 0.01% or better to the COMM terminal. Leave the positive lead of
the DC current source unconnected.
2. With the display at CodE 48, press the PAR button. Unit will display
CAL NO
3. Press the RST button to select the range to be calibrated.
4. Press the PAR button. Display reads 0.0A
5. With the positive lead of the DC current source unconnected, press
PAR. Display reads CALC for about 8 seconds.
6. When the display reads the selected range, connect the positive lead
of the DC
current source to the current input and apply full-scale input signal for
the range. (Note: For 200 mA range, apply 100 mA as indicated on the
display.) Press PAR. Display reads CALC for about 8 seconds.
7. Repeat steps 3 through 6 for each input range to be calibrated. When
display reads CAL NO, press the PAR button to exit calibration.
Voltage Calibration
1. Connect a precision DC voltage source with an accuracy of 0.01% or
better to the volt input and COMM terminals of the PAXLA. Set the
output of the voltage source to zero.
2. With the display at CodE 48, press the PAR button. Unit will display CAL
NO.
3. Press the RST button to select the range to be calibrated.
4. Press the PAR button. Display reads 0.0v.
5. With the voltage source set to zero (or a dead short applied to the
input), press
PAR. Display reads CALC for about 8 seconds.
6. When the display reads the selected range, apply full-scale input
signal for the range. (Note: For 200V range, apply 100V as indicated
on the display.) Press PAR. Display reads CALC for about 8 seconds.
7. Repeat steps 3 through 6 for each input range to be calibrated. When
display
reads CAL NO, press the PAR button to exit calibration