Hi, people,

Do you know any tachometer with tachoswitch for alternator meeting these specs:

Ajusting: 140 - 400Hz @ 1000RPM
Switch opening @ 2160 RPM, a couple of contacts normally open and another normally closed.
Source voltage 24VCC.
RANGE 400 - 3500RPM

Thanks by any help.

 

Dynalco Speed Switches. Very dependable, this is the SST-2000A/H series. General location or hazardous? Can get with 0, 2, or 4 relay trip setpoints.

http://www.dynalco.com/subcat_details.cfm?Category_ID=4&SubCategory_ID=18