KROHNE UFM 600T EN - Manual (Page 46)

Active output short-circuit-proof
Terminals 4.1/4.2 : for electromechanical (EMC) or
electronic (EC) totalizers
Terminals 4/4.1/4.2: for electronic (EC) totalizers
Amplitude : approx. 27 V
Load rating see Table "pulse width"
Passive output
Terminals 4/4.1
: open collector for connection of
active electronic totalizers (EC)
or switchgear
Input voltage : 5 to 30 V
Load current : max. 100 mA
Pulse width is automatically choosen, depending on actual out
frequency.
Frequency f at Q=100% Pulse width Load rating of active output
Load current
Load
0.0028 Hz < f
≤
1 Hz 500 ms
≤ 150 mA ≥ 180 Ohm
approx.
50% duty
1 Hz < f
≤ 10 Hz cycle (1:1) ≤ 25 mA ≥ 1 k Ohm
50% duty
10 Hz < f
≤ 1000 Hz cycle (1:1) ≤ 25 mA ≥ 1 k Ohm
1000 Hz < f
≤ 2547 Hz 160 µs ≤ 25 mA ≥ 1 k Ohm
2547 Hz < f
≤10000 Hz 50 µs ≤ 25 mA ≥ 1 k Ohm
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