4�6 Analogue Function - Autosen AS005 Notice D'utilisation

4.6 Analogue function
The unit provides an analogue signal that is proportional to the flow quantity or the
medium temperature�
Within the measuring range the analogue signal is 4���20 mA�
The measuring range is scalable:
• [ASP2] determines at which measured value the output signal is 4 mA�
• [AEP2] determines at which measured value the output signal is 20 mA�
Minimum distance between [ASP2] and [AEP2] = 20 % of the final value of
the measuring range�
For flow measurement in the operating mode [ModE] = REL, [ASP2] and
[AEP2] are not available� In this operating mode, the characteristic curve of
the analogue output is defined by the flow adjustment:
high flow = 20 mA; low flow = 4 mA�
If the measured value is outside the measuring range or in the event of an internal
error, the current signals indicated in figure 1 are provided�
For measured values outside the display range or in case of a fault, messages are
displayed (UL, OL, Err; → 13).
The analogue signal in case of a fault is adjustable (→ 10.4.8):
• [FOU] = On determines that the analogue signal goes to the upper final value
(22 mA) in case of an error�
• [FOU] = OFF determines that the analogue signal goes to the lower final value
(3�5 mA) in case of an error�
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