With single channel processing (1oo1) safety provision is solely determined by the device configuration. Therefore the use of sensor monitoring with integrated plausibility control is essential. In such a case no redundancy is provided. Should a fault be detected, the entire system will be shut down immediately.
The Single Channel Speed Monitor D521.02 permanently monitors the speed sensors for their correct function. During its complete lifetime cycle, the monitor does not require any external proof tests and is completely maintenance-free
KEY FEATURES
·SIL1 / IEC 61508:2010 compliant
·Single Channel Monitor with sensor monitoring and self-test function
·Frequency range 0 Hz…50 kHz
·1 Analog Output (option)
·Bright red digital LED display
·2 Alarm Outputs as SPDT relays (option)
·2 Alarm Outputs as PhotoMOS relays (option)
·Universal Input, also for magnet-inductive sensors (MPUs)
·Square wave Pulse Output
·USB 2.0 Data Interface
·Two Monitors, suitably configured with their output contacts linked together, may provide a protection system with 1oo2 or 2oo2 redundancy
·Universal Power Supply range 20…265 Vuc
BENEFITS
·Fast, precise and safe
·Maintenance-free during Lifetime,
·therefore minimized TCO
·Universal range of application,
·throughout mechanical and electrical
·engineering, in the chemical industry,
·in power plants, and at test stands
·Increased safety with
·1oo2 architecture
·Maximum availability with
·2oo2 architecture
Single Channel Speed Monitor D521.02 Detail Pictures
