Electronic apparatus for biological research Electronic apparatus for biological research electronicappara00dona Year: 1958 THE POST OFFICE 3000 TYPE RELAY A relay set up to within ±10 per cent of the figures given below may have a life between adjustments of a million operations. Before attempting to adjust a relay, the coil retaining nut should be checked for tightness. The armature travel should then be adjusted to 0-030 in. by bending the armature suitably. A special tool is available for this purpose, but a light hammer, delicately used, is an acceptable substitute. For contact adjustme
Electronic apparatus for biological research Electronic apparatus for biological research electronicappara00dona Year: 1958 THE POST OFFICE 3000 TYPE RELAY A relay set up to within ±10 per cent of the figures given below may have a life between adjustments of a million operations. Before attempting to adjust a relay, the coil retaining nut should be checked for tightness. The armature travel should then be adjusted to 0-030 in. by bending the armature suitably. A special tool is available for this purpose, but a light hammer, delicately used, is an acceptable substitute. For contact adjustment two special tools are needed: (a) A spring balance to measure the force at the contact tip; if a proper relay balance is not available it is possible to use a piece of leaf spring suitably mounted with a Position of special spring adjuster
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Photo credit: © Bookworm / Alamy / Afripics
License: Licensed
Model Released: No
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