SU2020 SU2021 SU2621 SU8020 SU8021 SU8621 SU9020 SU9021
Ultrasonic flow meter
30
Every time the volumetric flow quantity (pulse value) set under [ImPS] has been reached, the output
provides a pulse signal.
The pulse signal consists of a short switching on and off of the output. The switching status LEDs on
the unit do not display the switching operation.
Pulse signals are not available via the IO-Link interface.
Parameter setting via unit keys: Pulse signal totaliser
ü
Standard unit of measurement is selected: [EF] > [CFG] > [uni.x].
u
Go to [EF] > [OUTx] to configure output OUTx.
u
Select [SELx] and set the process value: [FLOW].
u
Select [ou1] or [ou2] and set [ImP].
u
Select [ImPSx] and set the volumetric flow quantity at which 1 pulse is provided (pulse value).
•
Press ▲ or ▼ to select the setting range.
•
Briefly press ● to confirm the setting range.
•
Press ▲ or ▼ to set the requested numeric value.
•
Briefly press ● to apply the value.
u
Select [ImPRx] and set [Yes].
The parameter settings for [ImPS] and [ImPR] can be changed subsequently in the main menu.
Parameter setting via IO-Link: Pulse signal totaliser
ü
Standard unit of measurement is selected: [Parameter] > [Basic settings] > [uni.x].
u
Go to [Parameter] > [Output configuration].
u
Select [SELx] and set the process value: [FLOW].
u
Select [ou1] or [ou2] and set [ImP].
u
Select [Parameter] > [Pulse output x].
u
Select [ImPSx] and set the volumetric flow quantity at which 1 pulse is provided (pulse value).
u
Select [ImPRx] and set [Yes].
10.3.4 Analogue signal
The unit provides an analogue signal of 4…20 mA proportional to the process value.
The measuring range is scalable:
•
[ASP] determines at which measured value the output signal is 4 mA.
•
[AEP] determines at which measured value the output signal is 20 mA.
Minimum distance between ASP and AEP = 20 % of the final value of the measuring range.
If the measured value is outside the measuring range or in the event of an internal error, the current
signal indicated in the following figure is provided.
For measured values outside the display range or in case of an error, messages are displayed (cr.UL,
UL, OL, cr.OL, Err).
