DETAILED DESCRIPTION

SM155….

A versatile and timeless speed monitor that has been providing its services in global industrial applications for over thirty years.
It is suitable for speed monitoring up to 10,000 rpm in conveyor applications, mixers, fans, lifts, cranes and many more.
As the speed crosses a preset level, the output contact energises and will remain so until the speed returns to the normal level again.
The SM155… monitoring relay controlled by Namur/DIN 19234 sensor or metallic contact (such a microswitch, reed relay, limit switch etc. Also, there is the possibility to have reading of the rpm via moving-coil instrument.

Specifications
Power supply: 24 V AC or 115 V AC, or 230 V AC, or 24 V DC (depending on the model)
Measuring range: 30-300 rmp or 200-2.000 rpm or 1.000-10.000 rpm (depending on the model)
Output: Relay 10 Α (1 ΝΟ+1 NC)
Plug: in 11 pin base
Indication for: green LED (power supply), red LED (relay output)
Inverted function: with interconnecting pins 8 - 11
Speed indicator (with moving-coil instrument): connection in pins 8 - 9