27
5.1.6. Output mode – pulse
If output 2 is configured for pulse, the measurand can be consumption only. Under “Pulse”, the duration of the
pulse and the pulse value (Significance level of pulse) can be freely configured.
The duration of the pulse can be set between 0.02 and 2 seconds.
e.g. Duration of pulse = 100ms; one pulse for each Nm
3
consumed
The pulse – interval – ratio must be at least 1 : 2, meaning that the duration of the pulse interval must be at
least twice the duration of the pulse itself.
Calculation of the minimum “pulse value” or the maximum “pulse duration”.
IMPW_MIN = NORMV_MAX [m
3
/h] * IMPL [s] / 1200
IMPL_MAX = IMPW [m
3
] * 1200 / NORMV_MAX [m
3
/h]
IMPW
pulse value [m
3
]
IMPL
pulse length (duration) [s]
IMPW_MIN
minimum pulse value [m
3
]
IMPL_MAX
maximum pulse length (duration)
NORMV_MAX
expected maximum volume flow (Nm
3
/h)
5.2. Minimum flow shutdown
The minimum flow shutdown is switched on and off using the “active” checkbox.
If the output signal is ≤ than the set “Shutdown value”, the flowmeter issues 0 on the analogue output.
5.3. Display
If an optional display is installed, at the tab Display the following items can be entered:
Drop-down input field “Display-Mode”
•
Single spaced
•
Double spaced (default)
Checkbox “Backlight”
•
Checked = ON
•
Unchecked = OFF
In the input field
“Description (free text),
a user specific name
(max. 16 characters) for
the transmitter can be
entered.
e.g.: HALL 1
With the button “send”
only the description will be uploaded to the transmitter.
Volume Flow [m
3
/h]
Number of Pulses
Hour
Pulse Value [m
3
/Pulse]
=
t
OUT 2
1/3
min. 2/3
