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Description: | Infra-red gas analyser (?); main label with letters IRGA; main dial IRGA calibrated 0-50; interior of sturdy die-cast box contains an inteferometer with two gas chambers, optical chopper and small amount of electronics; top section of box contains similar electronics; Grubb Parsons ref no.SB2 5479; paper labels on front knobs from top: 1) sensitivity trimmer 2) sensitivity control 3) test point (in centre) and on lower panel 'calibration device' burton below which is another knob labeled 'zero shutter'; twin cables from rear enter into third die-cast section with handle, apparently a power supply; gas tube connectors from the rear into the main body; hinged from gives access to interior | License: | http://www.abdn.ac.uk/historic/Copyright_terms_conditions.shtml | Publisher: | ABDNP University of Aberdeen, Natural Philosophy Collection of Historical Scientific Instruments | Rights holder: | 47718 | Temporal: | 1965-1980 | Source: | University of Aberdeen | Creator: | Grubb Parsons | Identifier: | http://calms.abdn.ac.uk/Geology/dserve.e... | Go to resource |
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