OPERATIONS
10 LDC-3700 Series
CHAPTER 2
Note: If the instrument cannot successfully complete the power on test, an error message
of E−512 or E−513 will be displayed on the Laser Display. See Troubleshooting on page 129
for a list of error codes and actions to take when your instrument indicates these errors.
37x4B Series Default Configuration:
• GPIB mode in LOCAL via front panel, or in
REMOTE via GPIB
• PARAMETERS not selected
• TEC and LASER adjust not selected • TEC output off
• TEC DISPLAY enabled, in T mode • Constant T mode selected
• TEC Display showing actual temperature • Temperature Set Point = 20 °C
• Resistance/Reference Set Point = 1 ohm or
mA or mV (depending on the setting of the
SENSOR SELECT switch)
• LIM ITE set to 2.0 Amps
• I
TE
Set Point = 1.0 Amp • TEC STEP value = 1
• LIM T
HI
set to 99.9°C • GAIN = 30
• TEC Tolerance values = 0.2ûC, 5 seconds • C2 = 2.347 (x 10
−4
)
• C1 = 1.125 (x 10
−3
) • CAL PD = 0 mA/mW
• C3 = 0.855 (x 10
−7
) • 25 mA (3714B)
• LIM I (high range) = 1000 mA (3744B), 125
mA (3724B),
• 12.5 mA (3714B)
• LIM I (low range) = 500 mA (3744B), 50 mA
(3724B),
• LIM P = 5000 mW (3744B), 1000 mW (3724B), 200
mW (3714B)
• LIM V = 10 volts • LASER DISPLAY enabled, in I mode
• LASER output off • LASER display showing actual current (0.00 with
output off)
• Constant I, low bandwidth mode selected • LASER Tolerance values = 10.0 mA, 1.0 seconds
(3744B),
• LASER STEP value = 1 • LASER I Set Point = 0 mA
• 1.00 mA, 1.0 seconds (3724B/3714B) • LASER P
PD
Set Point = 0 mW
• LASER IPD Set Point = 0 mA
• RECALL BIN number = 0
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