Kamstrup MULTICAL 603 - Page 15

MULTICAL®603
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KamstrupA/S∙Technicaldescription∙5512‐2029_A1_GB_06.2017
15
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PulseinputsAandB
In‐A65‐66andIn‐B:67‐68viamodule
Electronicswitch Reedswitch
Pulseinput
680kpull‐upto3.6V 680kpull‐upto3.6V
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PulseON
0.4Vfor30ms 0.4Vfor500ms
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PulseOFF
2.5Vfor30ms 2.5V
for500ms
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Pulsefrequency
3Hz 1Hz
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Electricalisolation No No
Maxcablelength 25m 25m 
Requirements to external
Leakagecurrentatfunctionopen1A
Updateofdisplay Followstheselectedintegrationinterval(from2to64s)
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Pulseoutputs
CandD
Out‐C:16‐17andOut‐D:18‐19via
module
 
Pulseduration:
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Pulsevalue
Whenpulseoutputsareusedfor
e.g.remotecountingofenergyand
volumewiththesameresolutionas
thedisplay
1
Heatmeter:  Out‐C=CE+
Out‐D=CV
Coolingmeter:  Out‐C=CE‐
Out‐D=CV
Heat/coolingmeter:  Out‐C=CE+
Out‐D=CE‐
Selectable:
10ms,32msor
100ms
Pulsevalue
Whenpulseoutputsareusedas
pulsetransmitter/dividerfore.g.
regulationpurposes

Transmitter:  Out‐C=V1
Out‐D=V2
4ms
Divider:   Out‐C=V1/4

22ms
 
Communicationmodule TypeHC‐003‐21 TypeHC‐003‐11 TypeHC‐003‐11
Before2017‐05‐01 After2017‐05‐01
Pulseoutputtype Opencollector(OB) Opencollector(OB) OptoFET
Externalvoltage 5…30VDC 5…30VDC 5…48VDC/AC
Current 1…10mA 1…10mA 1…50mA
Residualstress
U
CE
≈1Vat10mA U
CE
≈1Vat10mA
R
ON
≤40
Electricalisolation 2kV 2kV 2kV
Maxcablelength 25m 25m 25m
1
Athighresolution,thepulseoutputswillbereducedby1:10whenselecting32msand100ms.Seeparagraph3.2.10
aboutPPcodes.
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