Frequency output proportional to any of flow, power and net power is available. This facility is available only if
meter type is Heat meter or Net Heat meter.
Fct. 1.4.5. F.S. POWER and Fct. 1.4.6 F.S. FREQ
This defines the relationship between frequency output and power for Heat meter and Net Heat meter. Refer
diagrame F-1 and sect. 6.
TESTING OF FREQUENCY OUTPUT F
Fct. 2.2 TEST F
can be used to check frequency output. The following test values are provided.
1 / 10 / 100 / 1000 / 10000 Hz
to be monitored on a frequency meter. During the test frequency output changes to
the test values(s). The normal frequency value is restored automatically [as per programming of frequency
output] when the testing is over.
CHARACTERISTICS OF FREQUENCY OUTPUT F
Diagram F1
Fct. 3.2.1 LANGUAGE
offers choice of the display text language. The following options are available
l
ENGLISH
l
GERMAN
l
FRENCH
Fct. 3.2.2 ENTRY.CODE.1
set to
YES
for coding. The entry code is to be given under
Fct. 3.2.3 CODE 1.
The entry code consists to 9 key strokes of the 3 keys in any combination.
Programming of the VFM 5090(I) is “on-line” meaning that the instrument keeps working even when it is in the
programming mode. This means VFM 5090(I) will keep measuring flow rate, pressure & temperature; totalizing
flow and control outputs (current & frequency) as per the programmed configuration. Thus there is no change to
the behaviour of outputs during programming.
EXCEPTION
: Test functions
Fct. 2.2
TEST I
and
TEST F
will affect the current and frequency outputs
respectively only for the duration of testing.
6.2.12 Behavior of outputs during programming
6.2.11 Coding desired for entry into programming mode
6.2.10 Languages of display text
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