Cameron NuFlo MC-II, Руководство пользователя

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MC-II Flow Analyzer
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Appendix A—Pulse Output Option, Non-Intrinsically Safe
MC-II Pulse Output Circuit Assembly
(Part No. 100005121; nonhazardous use)
The pulse output circuit assembly (Figure A1) equips the MC-II Flow Analyzer to provide an optional pulse
output. It is mounted inside the unit between the totalizer board and the battery.
WARNING: Do not use in hazardous areas.
Pulse Input
The pulse input to this card is obtained from the “Pulse Out” of the totalizer card. It will appear in the form of
a square wave pulse.
Pulse Output
The pulse output from this card is provided in the form of a dry contact from a relay, transistor open-collector,
or an emitter/collector opto-isolated output. A 14-pin socket on the card is provided to install either the relay
or component plug “module”, whichever is specified. The relay coil voltage must match the voltage of sup-
plied power. Relays are available in 5V, 12V, and 24V (listed in the spare parts list on page 27).
Electrical Specifications
Current Required 10 mA
Relay Contact Rating 0.5A, 30 VDC, 10W max (resistive)
Open Collector Module 0.3A max, 30 VDC max
Opto-Isolated Module 0.1A max, 30 VDC max
Pulse Output Duration 60 msec (typical)
K1 relay
or output module
Jumper W1 Terminal block J1
Figure A1—Pulse output circuit assembly (Part No. 100005121 / 991.43450)
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