
Photosensor amplifier
C9329
This is an example using a photodiode whose cathode is
internally connected to its metal package.
When you use a photodiode metal package, use an insu-
lator to electrically insulate and also hold the package in
a shield case as shown in the figure at right. Connect the
anode to the shield case.
Any single-element photodiode with a terminal capaci-
tance below 5000 pF can be used.
Using a photodiode with anode grounded is recom-
mended.
Using a photodiode with a BNC connector (S2281 se-
ries) allows you to easily make measurements because it
connects to C9329 with a BNC-BNC plug coaxial cable.
KACCC0221EA
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Typical connection to photodiode
2
Anode: Connect to the shield wire of the cable and shield case.
Cathode: Connect to the core wire of the cable.
SOLDER
INSULATOR
CATHODE
ANODE
PHOTODIODE
EXTERNAL SHIELD CASE
COAXIAL CABLE WITH BNC PLUG
Connect to C9329 terminal
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Connection example
Operation example by digital output (REMOTE MODE)
COAXIAL CABLE
WITH BNC-BNC PLUG
PHOTODIODE
(S2281 SERIES)
to RS-232C
TERMINAL
PC
to IN
TERMINAL
to DC TERMINAL
AC ADAPTER
(Need not be connected
when operating on battery)
SWITCH C9329
REAR SW TO
"REMOTE MODE"
RS-232C CABLE
Rf RANGE SWITCH
KACCC0222EA
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Display example of accessory sample software
Data logger setting range
Measurement interval: 50 ms to 1 min
(50 ms interval)
Measurement count: 32000 Max.
Measurement interval
×
Meassurement count:
20 hours Max.
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Dimensional outline (unit: mm, excluding project parts)
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Accessories
AC adapter (Plug type: A-2 plug) *
5
Dry battery
Sample software CD-ROM (OS: Windows98SE/Me/2000/Xp *
6
Instruction manual
*5: Caution) Depending on the country, an adapter plug might be required when connecting to the AC outlet.
If so, please purchase a proper adapter plug from an electronics supply house.
*6: Resistered trademark of Microsoft Corporation in the United States.
Photodiode, coaxial cable with BNC-BNC plug and RS-232C cable are not supplied with C9329. You will need an RS-232C
cable (straight cable terminated with a D-sub 9 pin female connector at both ends) available from electronics supply houses.
KACCA0137EA
UPPER SURFACE
REAR
MANUAL
MODE
DC JACK
DC12V EIAJ
RS232C
ONLY FOR REMOTE MODES
REMOTE
MODE
OUT
IN
90 ± 1
1
4
FRONT
Rf RANGE
H
M
L
ZERO ADJ.
DATA LOG.
AUTO ZERO
PHOTOSENSOR AMPLIFIER C9329
POWER
ON
PUSH START
Note: Use the Rf RANGE switch to change the detection sensitivity.
(Detection sensitivity cannot be changed from the PC.)