Dynalco SWTD-1000 Speed Switch/Transmitter - Manual (Page 4)

Operating Instructions SWTD-1000 DYNALCO
2 //
3. Specifications
3.1 General
SWTD-1000
Lowest measuring range
0 . . . 1.000 Hz
Highest measuring range 0 . . . 35.00 kHz
Minimum Measuring time
(Fixtime) Selectable values: 2 / 5 / 10 / 20 / 50 / 100 / 200 / 500ms
1 / 2 / 5 Seconds.
Effective Measuring time Is based on the minimum measuring time (Fixtime) and the measured
frequency.
• Input frequency period < Fixtime
Input
frequency
End of Fixtime
Input period
Fixtime
time
typically: t
effective
= Fixtime
max: t
max
= 2 x Fixtime
• Input frequency period > Fixtime
Input
frequency
End of Fixtime Ensuing edge
Period of input signal
Fixtime time
max:
t
max
= 2 x input frequency period
• In the event of sensor signal failure:
t
effective
= Fixtime + (2 x last input frequency period)
Resolution 0.05 %
Power supply range 10...36 VDC
Power consumption 10 V : 2.3 W
24 V : 2.6 W
36 V : 3.0 W
PSU failure bridging 16 V : 4 ms
24 V : 25 ms
36 V : 75 ms
Isolation Galvanic isolation between:
• Power supply,
• Sensor input incl. sensor supply, Binary input, Serial interface
• Analog
output
• Relay
output
• Open
collector output
Isolation voltage 700 VDC / 500VAC