DUAL-DPM Separate Photomultiplier-Detector Unit

Separate Photomultiplier-Detector Unit overload switch-off, high-voltage control unit, and preamplifier; including colour glass filters RG665 (> 625 nm) and RG9 (> 690 nm); to be connected to Detector 1 input of DUAL-C; to be mounted on Optical Unit ED-101US/MD. Requires measuring head DUAL-DB or DUAL-DR for excitation of modulated fluorescence. Simultaneous P700 measurements require P700 measuring light emitter DUAL-E; P700 is measured by DUAL-DB or DUAL-DR connected to Detector 2 input of DUAL-C; fluorescence detection by DUAL-DPM is at right angles to P700 measuring light path.