Special Features
Sensitivity-5 mv per cal .2 min.1, impedence-300 ohms, receiver-circular 1 cm.2 coated with parsons black optical lacquer, temp dependence-sensitivity constant to within 1 per cent over ambient temperature range -20 to +40c (temp.Compensation of sensitivity can be supplied over other ranges within the limits -70 to +50c, linearity-response linear up to intensity of 4 cal cm2 min 1, response time-1 second, mechanical vibration, waterproofing-outer hemisphere seal vacumn tested, calibration-integrating hemisphere (approx. 1 cal cm2 min.1 ambient temp +27c) calibration reference eppley primary standard group of angstom pyrheliometer reproducing the international pyrheliometric scale, readout-potentionmetric in preference devices
