Wide dynamic range PMT unit
This unit is capable of measuring light levels at one time over a wide dynamic range up to 8 orders of magnitude. This wide dynamic range is achieved by simultaneously extracting a digital output (single photon counting) for detecting very-low-level light and an analog output for detecting low light levels visible to the human eye.
Left : Wide dynamic range PMT module H13126
Right : Data acquisition unit C12918 series
Up until now, measurement of light requiring a wide dynamic range has used two separate measurement methods: one for lower light levels and one for higher light levels.
Single photon counting output and analog output of the wide dynamic range PMT module are transferred to a PC via USB connection, and the two types of signals are synthesized into one by the supplied software.
|Parameter||Description / Value||Unit|
|Spectral response||300 to 650||nm|
|Photon counting||Output signal||C-MOS positive logic (Pulse output)||-|
|Pulse pair resolution||16||ns|
|Dark count (*1)||Below 100||s-1|
|Analog (Amplifier output)||Bandwidth（-3 dB）||DC to 50 / DC to 500 (*2)||kHz|
|Count-to-analog conversion factor||1 V / 5 × 108 s-1||-|
|Output voltage (Load resistance 1 kΩ)||0 to +10||V|
|Input voltage||±14 to ±15.5||V|
|Max. input current||+150 / -25||mA|
|Operating ambient temperature||+5 to +40||°C|
*1: After 3 hour storage in darkness
*2: Change with the switch
|Parameter||Description / Value||Unit|
|Counter||Signal input level||C-MOS positive logic (Pulse input)||-|
|Gate time||1 μs / 10 μs||-|
|Minimum pulse width||8||ns|
|Counter length||8 bit / Gate||-|
|AD converter||Signal input range||0 to +10 (Analog input)||V|
|Sampling rate||100 kHz / 1 MHz||-|
|Trigger||Trigger method||Internal trigger / External trigger||-|
|External trigger signal||TTL negative logic||-|
|Compatible OS||Windowss® Vista Business / 7 Pro||-|
|Input voltage||AC 100 to AC 240||V|
|Operating ambient temperature||+5 to +45||°C|
|Weight||250 (Main body only)||g|
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