Pulse Input Volume Pulses - Diehl Metering 548 Manual De Instalación

ƒ
Only tighten the brass or plastic screw by hand (2-3 Nm); tighten the
plug screw with a torque of approx. 12 Nm.
Meter type
Calculator heat in
return
Calculator heat in flow
Calculator cold in return Blue
Calculator cold in flow
Calculator climate in
return
Calculator climate
in flow
4.

Pulse input Volume pulses

Flow meter connection with pulse input and, if required, with power sup-
ply at the terminals 9 (+Vcc), 10 (flow pulse), 11 (- Gnd) of the calculator
.
Flow sensor connection
External Vcc 3.6 V
Open collector
Ground
ƒ
Pulse frequency < 200 Hz
ƒ
Pulse duration > 3 msec
ƒ
Pulse rate in display "Loop 3 -
INFO" (In0)
-24-
Deutsch
Sensor 2-Conductor
marking terminals
Red 5 TH 6
Blue 7 TC 8
Red 5 TH 6
Blue 7 TC 8
7 TC 8
Red 5 TH 6
Blue 7 TC 8
Red 5 TH 6
Red 5 TH 6
Blue 7 TC 8
Red 5 TH 6
Blue 7 TC 8
English
4-Conductor
terminals
1/5 TH 6/2
3/7 TC 8/4
1/5 TH 6/2
3/7 TC 8/4
3/7 TC 8/4
1/5 TH 6/2
3/7 TC 8/4
1/5 TH 6/2
1/5 TH 6/2
3/7 TC 8/4
1/5 TH 6/2
3/7 TC 8/4
Sensor marking
9 (+)
10
11 (-)
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Installation
position
high temperature
low temperature
high temperature
low temperature
high temperature
low temperature
high temperature
low temperature
high temperature
low temperature
high temperature
low temperature