Endress+Hauser dosimass, Руководство по эксплуатации

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Dosimass Appendix - Function description
Hauser 45
PULSE WIDTH Use this function to enter the pulse width of the output pulses.
User input:
0.05 to 1000 ms
Factory setting:
0.05 ms
The pulses are always output with the pulse width (B) entered in this function. The
intervals (P) between the individual pulses are automatically configured. However, they
must at least correspond to the pulse width (B = P).
A0001233-en
B Pulse width entered (the illustration applies to positive pulses)
P
Intervals between the individual pulses
!
Note!
When entering the pulse width, select a value that can still be processed by an external
totalizer (e.g. mechanical totalizer, PLC, etc.).
"
Caution!
If the pulse frequency resulting from the pulse value entered (see PULSE VALUE
function on

ä
44) and the current flow is too big (f
max
= ½ · 1/T; f = frequency,

T = oscillation period), to maintain the pulse width selected, a system error message is
generated.
MEASURING MODE Use this function to define the measuring mode for the pulse output.
Options :
STANDARD = only positive flow components are output.
SYMMETRY = the flow value is output.
Factory setting:
STANDARD
OUTPUT SIGNAL Use this function to configure the output in such a way that it for example matches an
external totalizer. According to the application, the direction of the pulses can be
selected here.
Options:
PASSIVE-POSITIVE
PASSIVE-NEGATIVE
Factory setting:
PASSIVE-POSITIVE
A0007241-en
B = Pulse width
Function description
Function group PULSE OUTPUT
B= P
B
P P
B B< P
t t
transistor transistor
conducting
nonconducting
conducting
nonconducting
t t
B B
PASSIVE-POSITIVE
pulses
PASSIVE-NEGATIVE
pulses
transistor transistor
unconnected unconnected
connected connected