OBB Light Source

Microscope PMT Photometers Specifications

 
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All controls and displays are available on the front and side of the OBB PMT housing.

Detector Control Specifications

Display LCD display of high voltage or signal
Controls On/Off switch
Analog/Digital Mode switch
Voltage/Signal Display switch
Voltage Adjust potentiometer
Analog Gain selection
Analog Time Constant selection
Analog Offset
BNC Connectors Signal Out
External Voltage Control

 

High Voltage Power Supply Specifications

Input
± 15 VDC, 250 mA
High Voltage
-200 to -1,100 VDC manually adjustable LCD displays actual cathode voltage
External High
0 to +5 VDC (0 = -200 V, 5 = -1,100 V)
Voltage Adjust
Continuously adjustable
Input Regulation
± 0.05% max. (for 15 V ± 1 V input).
Load Regulation
± 0.05% max.
Ripple
100 mV p-p max.
Temperature Coefficient
± 0.01% max. (+5 to 40°C)
Drift ± 0.03%/hr. max. (after 15 minute warm-up)

 

AC Adapter Specifications

Input
115 or 220 VCA (specify at time of order)
Output ±15 VDC, 250 mA

 

Analog Detection Unit Specifications

Gain Settings 1 µA = 1 V
0.1 µA = 1 V
0.01 µA = 1 V
0.001 µA = 1 V
Time Constant Settings 0.05 msec
0.5 msec
5 msec
50 msec
500 msec (0.5 sec)
Offset Correction ± 50 nA
Signal Output on BNC connector Analog voltage

 

Photon Counting Mode Specifications

Linear Dynamic Range 5 orders of magnitude*
Dead Time 250 ns
Signal Output on BNC connector TTL

 

* Linear dynamic range of the OBB photon counting PMT housing. The intensities were produced by attenuating the fluorescence emission of a fluorescein sample with neutral density filters.

Physical Specifications

Dimensions (WxDxH)

16  x 4 x 12 inches (single channel)
16 x 10 x 12 inches (dual channel)
16 x 17 x 12 inches (triple channel)

Weight

6 lbs (single channel)
10 lbs (dual channel)
14 lbs (triple channel)

 

 
OBB has a policy of continuous product development and reserves the right to amend part numbers, descriptions and specifications without prior notice.
 
 

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Contact OBB

HORIBA Scientific
Optical Building Blocks
3880 Park Avenue
Edison New Jersey
08820-3097

Tel: 732-494-8660
Fax: 732-623-8129
E-mail:info.sci@horiba.com