Scitec 350C and 350CD Miniature Optical Chopper - Boston ...

SPECIFICATIONSModel 350C/CD Control UnitFrequency read-out(Model 350CD Only)Output voltage5 digit 11mm (0.43 inches)LED display with user selected update rates of 1second (1Hz display resolution) or 10 second (0.1Hz display resolution)6V DC maximumStabilityFrequency controlFrequency stabilityReference outputPower requirementsDimensionsWeightBetter than 0.01%/CInternal-Manual control via ten turn potentiometer fitted with a turns countingdial External-BNC connector for 0 to 15VShort term- see phase jitter. Long term- better than +/-0.1% of reading within10 to 100% of maximum frequency5V HCT TTL pulse via BNC socket90-130V or 180-260V, 50/60Hz, 12VA254(W) x 76(H) x 178(W)mm2.6kgModel 350H Chopper HeadMotorReference pick-up5 pole DC motor, sleve bearings with more than 5000 hours lifetime, 0-9500rpm reversibleIR LED and phototransistor pair with Schmitt triggerDimensionsMounting50.0(H) x 32.0(L) x 37.0(D)mm, without bladeOptical stalk or bolt with M8 threadChopper BladesMaterialDiameterSurface FinishHalf hard brass, 0.25mm (0.01 inches)30mm (1.2 inches)Chemically blackened or gold platedMark-Space Ratio 1:1OPTIONSChopper Synchroniser: The chopper can be synchronized to another chopper or to an externalsource through the use of a chopper synchronizer. See the 300Synch for more details.40 Slot Disc Giving 6kHz Chopping Frequency: Copping frequency range can be increased to6kHz with the use of a 40 slot mini disc. However, this disc does limit the chopped beamdiameter to 1.0mm.Boston Electronics Corporation, 91 Boylston Street, Brookline MA 02445(800)347-5445 or (617)566-3821 * fax (617)731-0935 * boselec@boselec.com * www.boselec.com