Drawing No. LP0673
Revised 08 2021
8
Entering Code 66 will overwrite all user settings
with the factory settings. The meter will display
rESEt
and then return to
CodE 00
. Press the
PAR
button to
exit the module.
MIN DISPLAY ENABLE
YES
NO
NO
LO-En
NO
FCS
2.0
LO-t
MIN CAPTURE DELAY TIME
When the Input Display is below the present MIN value for the entered
delay time, the meter will capture that display value as the new MIN
reading. A delay time helps to avoid false captures of sudden short
spikes.
0.0
to
999.9
seconds
Select
yES
to perform either of the Factory Service Operations shown
below.
FACTORY SERVICE OPERATIONS
yES
NO
Enables the Minimum Display Capture capability.
The LD uses stored calibration values to provide
accurate measurements. Over time, the electrical
characteristics of the components inside the LD will
slowly change with the result that the stored calibration
values no longer accurately define the input circuit. For
most applications, recalibration every 1 to 2 years should be sufficient.
Calibration of the LD involves a calibration which should only be
performed by individuals experienced in calibrating electronic equipment.
Allow 30 minute warm up before performing any calibration related
procedure. The following procedures should be performed at an ambient
temperature of 15 to 35 °C (59 to 95 °F).
CAUTION: The accuracy of the calibration equipment will directly
affect the accuracy of the LD.
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 displays
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 LD. Set the output
of the voltage source to zero.
2. With the display at
CodE 48
, press the
PAR
button. Unit displays
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
CALIBRATION
66
CodE
RESTORE FACTORY DEFAULT SETTINGS
Entering Code 50 will display the model (LDA) and
version (x.x) of the meter. The display then returns to
CodE 00
. Press the
PAR
button to exit the module.
50
CodE
VIEW MODEL AND VERSION DISPLAY
48
CodE
5.2 Module 2 - s
econdary
F
unctIon
p
araMeters
(
2-SEC
)
PAR
Max Capture
Delay Time
Max Display
Enable
Min Display
Enable
Access Code
For Service
Operations
Min Capture
Delay TIme
Factory
Service
Operations
2-SEC
HI-En
HI-t
LO-En
LO-t
FCS
CodE
Pro
PARAMETER MENU
2.0
HI-t
MAX CAPTURE DELAY TIME
When the Input Display is above the present MAX value for the
entered delay time, the meter will capture that display value as the new
MAX reading. A delay time helps to avoid false captures of sudden short
spikes.
0.0
to
999.9
seconds
NO
HI-En
MAX DISPLAY ENABLE
YES
NO
Enables the Maximum Display Capture capability.
