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Elster PR7 - Cable Connections; PR6;PR7 Cable Layout

Elster PR7
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10
VI Cable Connections
Anschluss-Belegung
Le Branchment des Cables
Conexionado de los Cables
PR6/PR7
CH1P = Both forward and reverse direction pulses are output here.
CH1D = D.Flag = Direction flag (High = Forward flow).
CH2P = Forward flow minus reverse flow. This pulse stream compensates for any backflow.
CH2C = Reverse flow Compensation flag. Low while backflow compensation is in process.
TAMP = Activates when the pulse unit is lifted off the meter. Active High. (Also activates when the internal battery is low).
GND = Common
PR7 K 1:- (Part no. 2925M1223 only)
CH1P = Both forward and reverse direction pulses are output here.
CH1D = D.Flag = Direction Flag (High = Forward flow).
VCC = optional Power Supply 3-3.6 V
NC = Not connected.
TAMP = Activates when the pulse unit is lifted off the meter. Active High. (Also activates when the internal battery is low).
GND = Common
All outputs are open collector. Pulse outputs are active low.
The outputs may be connected, via pull-up resistors, to up to 30V. Maximum sink current = 30mA.
* The pulse units can be used with other meters. Check the meter’s dial face or shroud for the PR6 or PR7 marking
PR6/PR7
CH1P = Volumenimpulse (unabhängig von der Fließrichtung), aktiv „Low“
CH1D = Richtungs-Flag, „High“ = Vorwärtsfluss
CH2P = korrigierter Volumenimpuls = Vorwärtsfluss minus Rückwärtsfluss, aktiv „Low“
Während eines Rückflusses werden keine Impulse ausgegeben. Bei Vorwärtsfluss wird eine Impulszahl unterdrückt, die dem zuvor erfassten
Rückflussvolumen entspricht.
CH2C = Rückwärtsfluss-Kompensations-Flag. Dieses Flag ist „Low“, wenn gerade eine Rückfluss-Kompensation durchgeführt wird.
TAMP = Alarm-Flag, signalisiert die Demontage des Impulsmoduls vom Zählwerk oder niedrigen Batterieladezustand, aktiv High
GND = Masse
PR7 K 1:- (nur Artikelnummer 2925M1223 )

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