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Analog outputs
Number of outputs
2
Output signal
0 … 10 V / 0 … 4 mA
Resolution
12 bits (approx. 2.4 mV)
Signal error
± 0.25% of output range or ± 25 mV
Earth reference
Terminals "–" are connected with 1 kOhm to the
internal analog ground
Digital inputs for level detection
Number of inputs
4, including 2 for frequency measurement / pul­
se counting
High level
3.5 ... 90 V / 2 mA (typ. 2.7 mA at 5 V)
Low level
0 … 1.5 V / 0 … 1.5 mA
Refresh rate
1 kHz (1 ms)
Minimum pulse width that can be
evaluated
2.5 ms
Maximum signal frequency
50 Hz
Potential isolation
2.5 kV
Reverse polarity protection
1 kV
Digital inputs for frequency measurement / pulse counting
Number of inputs
2
High level
3.5 ... 90 V / 2 mA (typ. 2.7 mA at 5 V)
Low level
0 … 1.5 V / 0 … 1.5 mA
Gate time
250 ms ... 5000 ms, adjustable in increments of
250
Frequency measurement
0.2 Hz … 50 kHz
Measurement error
0.2 Hz … 100 Hz ± 1% of the input frequency
>100 Hz: ±1 Hz
Potential isolation
2.5 kV
Reverse polarity protection
1 kV
LogMessage
July 2012
176
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