Digital Tachometer with 2 alarm limits

Display

4 digit 7 segment Red LED display for RPM   2 LEDs to indicate relay status   1 LED to indicate input signal status

Range:

20 to 9999 RPM Displayed RPM: (RPM of rotor x No of teeth) Scale Factor Sensor Electromagnetic sensor (Can be factory modified for proximity   sensor)

Scale Factor

1-99 user settable depending on number of teeth/keyways on rotor

Being used Alarm Limits

2 separate alarm outputs with user settable limits Relay Outputs.
2 sets of NO-P-NC contacts of 5 Amp/220V AC contact rating Alarm Logic  Relay 1 ON when RPM > Set Point-1  
Relay 2 ON when RPM > Set Point-2 Configuration Lock By rear jumper (open to lock) for preventing tampering with the

scale factor Accuracy

+/- 1 RPM in the range of 20 to 9999 RPM Size   
48mm x 96mmDepth 
180mmSupply 220V AC ± 15%