Functions
7.5 Function Group Device Outputs
SITRANS F M TRANSMAG 2
54
Operating Instructions, 11/2009, A5E00102775-07
● Pulse rate, menu item 4.2.3
The pulse valency indicates how many pulses per unit of volume or mass are output.
When the "Pulse" function is selected, you have to set the number of pulses per unit of
volume or mass.
● Pulse width, menu item 4.2.4
You can determine the pulse/pause ratio of the pulse output with the pulse width. The
pulse width can be set in a range from 0.1 to 2000 ms. A maximum pulse width is
calculated in relation to the set full scale value and the set pulse valency. The maximum
pulse frequency is 5 kHz.
U[V]
U[V]
I
[mA]
I
[mA]
7
7
7
7
①
Active-positive
②
Active-negative
③
Passive-positive
④
Passive-negative
⑤
Transistor T
2
conductive
⑥
Transistor T
2
disabled
⑦
Time
Figure 7-7
Signal types for digital output 1
● Full scale frequency, menu item 4.2.5
The frequency is permanently assigned to the flow. The pulse/pause ratio is constant 1:1.
If the "Full scale frequency" function is selected, the frequency is set in the range from 2
... 10000 Hz.
Digital output 2 (Menu item 4.3)
The digital output 2 is available in device variants with the MLFB-No. 7ME5034-0xxxx-xxxx
(Hart communication and digital output). You have the following setting options in this menu:
● Function, menu item 4.3.1
You can configure the digital output 2 (relay contact) as an alarm or status output.
When "Split value active" is selected, the output is active when the current level of the flow
value is within the lower subdomain 0 to "Split value". In this case the output current is