Operating Instructions T411 / T412 JAQUET AG
Revision: 003 4/27
1 Safety Instructions
T400 series tachometers may only be connected by trained & competent personnel.
As soon as an electrical circuit is connected that can have dangerous voltages, other
tachometer components may exhibit a dangerous potential.
(Series T400 tachometers do not themselves generate dangerous potentials)
Before opening the tachometer (Hardware configuration) the unit must be disconnected from circuits that may
exhibit dangerous potentials.
These instruments correspond to protection class Iand it is therefore mandatory to earth the PE terminal.
The instructions in this operating guide must be strictly adhered to. Not doing so may cause harm to
personnel, equipment or plant.
Instruments in a doubtful condition after electrical, climatic or mechanical overload must be immediately
disconnected and returned to the manufacturer for repair.
The instruments have been developed and produced in accordance with IC-348 and left the factory in perfect
condition.
2 Product features
Series T400 tachometers measure and monitor frequencies (speed proportional values) in the range
0 to 35,000 Hz.
The following features are available:
•1 Current or voltage output (T411 - current, T412 - voltage)
•1 Sensor frequency output
•1 Relay
•2 Limits
•2 Parameter sets –selectable via binary input
•Sensor monitoring
•System monitoring
The tachometers are configured via T400 PC configuration software.
All settings are in revolutions per minute (rpm).
4 models are available:
