INTEGRA Metering CALEC ST II Instructions De Montage Et Mode D'emploi page 91

Pulse inputs and outputs
Main input #1 Connecting a pulse generator according to NAMUR,
(10/11) with potential-free contact (reed relay) or SSR (solid state relay),
or for active sensors with the following values.
Input passive
Open-circuit
voltage
Short-circuit
current
Switching level <1.5 mA,
Min. OFF (t off) 20 Hz 20 ms
Min. ON (t on) 20 Hz 3 ms
Min. OFF (t off) 200 Hz 2 ms
Min. ON (t on) 200 Hz 300 µs Min. OFF (t off) 200 Hz 2 ms
Input capacity 20 nF
Input
Switchable
input and
Open-circuit
voltage
output
output #1/
Switching level <1.5 mA,
input #2
(100/101)
Min. OFF (t off) 20 Hz 20 ms
Min. ON (t on) 20 Hz 3 ms
Min. OFF (t off) 200 Hz 2 ms
Min. ON (t on) 200 Hz 300 µs Pulse width
Input capacity 20 nF
CALEC ST II
®
8 V
8 mA
>2.1 mA
8 V Max.
>2.1 mA
Input active
Voltage 3...48 V DC
range
Current signal > 2 mA
Reverse polarity -48 V
protection
Electrical 48 V
isolation
Min. OFF (t off) 20 Hz 20 ms
Min. ON (t on) 20 Hz 3 ms
Min. ON (t on) 200 Hz 300µs
Output
Contact rating 48 V DC,
100 mA
Electrical 48 V
isolation
Contact <30 Ohm
resistance (on)
Contact >10 MOhm
resistance (off)
Pulse frequency max. 4 Hz
100 ms
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