SIKA Induq VMM Series, Руководство по эксплуатации

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i ndu Q
®
- Series VMM Operation
Technical changes reserved
- 35 -
When choosing an improper combination of
these parameters (e.g. the number of pulses
per time unit cannot be generated due to the
pulse width which is too large), one of the
following error messages will be displayed:
Pulse width inconsistent
too large parameters
For selecting the desired function please use
the key
 or  . After choosing the function
output of pulses
or
frequency
and
pressing Enter, the following selection field
will be displayed.
Example:
Pulse output unit:
This function is used to define the unit to be
accumulated.
After selecting the function Pulse output
unit, press Enter to enter the parameter lev-
el. The following selection field will be dis-
played:
Example:
For this parameter the following units are
available:
Volume units: m3 Cubic meter
l Liter
USG Gallon (US)
UKG Gallon (brit.)
ft3 Cubic feet
Mass units: kg Kilogram
t Tonne
Pulse value:
This function is used to define how many
pulses will be output per accumulated unit.
After selecting the function
Pulse value
,
press the ENTER key to display the current
unit:
Example:
Pulse width:
This function is intended to change the width
of the pulses.
For selecting the desired function please use
the key
 or  . After selecting the function
Pulse width, press Enter to display the actual
setting for this parameter:
Example:
If the pulse width for the actual pulse num-
ber is selected too high, the warning mes-
sage "Value too high" appears and the
changes are not applied.
The maximum output frequency f can be cal-
culated by
1000Hz
[ms] width pulse 2
1
≤
⋅
=
f
Notice
For connection of electronic counters,
we recommend a pulse width greater
than 4 ms; for electromechanical
counters the value should be 50 ms.
Output of
[pulses]
Accumulation
of [ USG ]
1 pulse per
001.000 unit
Pulse width
0050.0 ms