Red Lion LDA - Manual (Page 8)

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 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 LD. 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
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.