THORLABS PDB48*C-AC series, Operation Manual

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© 2019 Thorlabs 4
PDB48xC-AC
2 Installation
This section is intended to provide information how to set up quickly the PDB48xC-AC Bal-
anced Amplified Photodetectors. More details and advanced features are described in further
sections.
2.1 Parts List
Inspect the shipping container for damage.
If the shipping container seems to be damaged, keep it until you have inspected the contents
and you have inspected the PDB48xC-AC mechanically and electrically.
Verify that you have received the following items within the package:
1. PDB48xC-AC Balanced Amplified Photodetector
2. Adapter Plate with four M2x8 screws and a hex key 1.5, for post-mounting the unit on a
optical table
3. LDS12B power supply (±12 V, 250 mA), switchable to 100 V, 120 V, or 230 V line
voltage
4. Operation manual
2.2 Getting Started
Note
Please check prior to operation, if the indicated line voltage range on the power supply matches
with your local mains voltage! If you want use your own power supply, Thorlabs offers an ap-
propriate power connector cable.
· Carefully unpack the unit and accessories. If any damage is noticed, do not use the unit.
Contact Thorlabs and have us replace the defective unit.
· If required, mount the unit on your optical table or application. Therefore, mount the adapter
plate on bottom or side wall using the four M2x8 screws first. The adapter plate has two
mounting holes, M4 and #8-32. The M4 thread is marked. These threads can be used for
mounting onto Thorlabs posts.
·
Set the power supply to your local mains voltage (100, 120, or 230 VAC):
·
Connect the DC output cable of the power supply to the POWER IN jack.
· Connect the power supply to the AC outlet, turn power supply on
· Connect RF OUTPUT with coaxial cable to the data acquisition device. Please note, that a
50
W impedance device should be used for best RF performance.
· If necessary, connect monitor outputs (, MONITOR-) to measure the optical in-
put power for each channel individually.