LS-450 Series Blue LED Pulsed Light Sources
LS-450 Series Blue LED Pulsed Light Sources
9
USB-LS-450 Specifications
USB-LS-450 LED Specifications
Item Specification
Power output:
Minimum of 60
µ
W into a 600
µ
m optical fiber
LED drive current:
20 mA +/- 0.15 mA
Maximum modulation frequency:
1 kHz
0.5% stability time:
Less than 1 minute
Temperature-dependent drift:
+0.1%/
°
C
Temperature Measurement Specifications
Power Specifications
Item Specification
Item Specification
Precision:
Better than 0.1
°
C
Input voltage range:
3.0 to 8.0 volts
Accuracy:
Better than 0.5
°
C
Quiescent range:
~20 mA
Maximum Data Rate:
15 samples per second
Current with lamp on:
~20 mA
USB-LS-450 Pin and Interface Information
The USB-LS-450 features a 10-pin accessory input (for the USB2000) and a
4-pin accessory connector (for the USB-LS-450-TP).
10-pin Accessory Input
The 10-pin accessory Input on the USB-LS-450 provides unaltered
connections to the 10-pin accessory connector on the USB2000
Spectrometer. Use this connector to configure external triggering options on
the USB2000 when the USB-LS-450 is connected to the spectrometer.
Consult the External Triggering Options document at
http://www.oceanoptics.com/technical/externaltriggering.pdf for more
information on specific pin information on the USB2000.
Note: If you have the 4/20mA (USB-LS450-4/20) output option, the 4-
20mA signal transmits on pin 8 of the 10-pin accessory input. The
ground transmits on pin 6.
4-pin USB-LS-450-TP Connector
The 4-pin USB-LS-450-TP connector is located on the side of the USB-LS-
450. It is a round connector approximately 1 cm in diameter. The USB-LS-
450-TP Temperature Probe plugs directly into this connector.
Consult the Fiber Optic Sensors Manual for more information on the USB-
LS-450-TP.
Front view of the USB-LS-450 with
10-pin accessory input
Pinout diagram of the 10-pin
connector on the USB2000
Side view of the USB-LS-450 with 4-
pin USB-LS-450-TP connector
