3 Functions and features ����������������������������������������������������������������������������������������4
4 Function ��������������������������������������������������������������������������������������������������������������� 5
4�1 Processing of the measured signals ��������������������������������������������������������������5
4�2 Direction of flow ���������������������������������������������������������������������������������������������5
4�3 Analogue function ������������������������������������������������������������������������������������������6
4�4 Measured value damping (dAP) ��������������������������������������������������������������������7
10�1 Parameter setting in general ���������������������������������������������������������������������17
10�1�1 Change to the menu "Extended functions" ��������������������������������������� 17
10�1�2 Locking / Unlocking ��������������������������������������������������������������������������17
10�1�3 Timeout ��������������������������������������������������������������������������������������������� 18
10�2 Scaling of the analogue value for temperature (OUT1) ����������������������������� 18
10�3 Scaling of the analogue value for volumetric flow (OUT2) ������������������������18
10�4 User settings (optional) ������������������������������������������������������������������������������18
10�4�1 Determine the standard unit of measurement for volumetric flow ����18
10�4�2 Determine the standard unit of measurement for temperature ���������18
10�4�3 Standard display ������������������������������������������������������������������������������� 18
10�4�4 Measured value damping �����������������������������������������������������������������18
10�4�5 Error behaviour of the outputs ����������������������������������������������������������19
10�5 Service functions ���������������������������������������������������������������������������������������19
11�1 Reading the process value ������������������������������������������������������������������������19
11�2 Changing the process value display in the RUN mode������������������������������20
11�3 Reading the set parameters �����������������������������������������������������������������������20
Important note
Non-compliance may result in malfunction or interference�
Information
Supplementary note�
CAUTION
Warning of personal injury�
Slight reversible injuries may result�
2 Safety instructions
• The device described is a subcomponent for integration into a system�
- The manufacturer of the system is responsible for the safety of the system�
- The system manufacturer undertakes to perform a risk assessment and to
create a documentation in accordance with legal and normative requirements
to be provided to the operator and user of the system� This documentation
must contain all necessary information and safety instructions for the operator,
the user and, if applicable, for any service personnel authorised by the manufacturer of the system�
3
• Read this document before setting up the product and keep it during the entire
service life�
• The product must be suitable for the corresponding applications and environmental conditions without any restrictions�
• Only use the product for its intended purpose (→ Functions and features).
• Only use the product for permissible media (→ Technical data).
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property may occur�
• The manufacturer assumes no liability or warranty for any consequences
caused by tampering with the product or incorrect use by the operator�
• Installation, electrical connection, set-up, operation and maintenance of the unit
must be carried out by qualified personnel authorised by the machine operator�
• Protect units and cables against damage�
3 Functions and features
The unit monitors liquid media� It detects the 2 process categories volumetric flow
and medium temperature�
Pressure Equipment Directive (PED)
The units comply with the Pressure Equipment Directive and are designed and
manufactured for group 2 fluids in accordance with the sound engineering practice� Use of group 1 fluids on request�
Application area
Conductive liquids with the following properties:
• Conductivity: ≥ 20 µS/cm
• Viscosity: < 70 mm
2
/s at 40 °C; < 70 cSt at 104 °F
4
4 Function
• The unit detects the flow based on the magnetic-inductive volumetric flow
measuring principle�
• The unit also detects the medium temperature�
• The unit displays the current process value�
4.1 Processing of the measured signals
The unit generates 2 output signals according to the parameter settings:
OUT1:Parameter setting
UK
- Analogue signal for temperature→ 10.2
OUT2: Parameter setting
- Analogue signal for volumetric flow quantity→ 10.3
4.2 Direction of flow
In addition to the flow velocity and the volumetric flow quantity, the unit also
detects the direction of flow�
An arrow with the text "flow direction" on the unit indicates the positive flow
direction�
Flow...Process value display
corresponds to the marked flow direction+ (positive)
against the marked flow direction- (negative)
Only positive process values are processed for the signal output�
5
4.3
Analogue function
• The unit provides an analogue signal that is proportional to the volumetric flow
quantity and the medium temperature�
• Within the measuring range the analogue signal is 4���20 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�
• 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�
MAWInitial value of the measuring range
MEWFinal value of the measuring range
ASPAnalogue start point
AEPAnalogue end point
Table 1: Definitions
1
[mA]
FOU=On
22
21,5
20
3
4
5
6
For non-scaled measuring range
(= factory setting)
For scaled measuring range
5*
6*
4
3,5FOU=OFF
ErrULOLErr
Q[% MEW]
MEWMAWAEPASP
1000-120-130130
120
2
[°C]T-20-40-5080100110
[°F]176-4-58-40212230
Figure 1: Characteristics of the analogue output according to the standard IEC 60947-5-7�
6
Q:Flow (a negative flow value means flow against the marked flow direction)
1
2
3
4
5
5
*
6
6
*
T:Temperature
UL:Below the display range
OL:Above the display range
Err:The unit is in the error state
FOU=On:Default setting at which the analogue signal goes to the upper final value in
case of an error�
FOU=OFF:Default setting at which the analogue signal goes to the lower final value in
case of an error�
Analogue signal
Measured value (flow or temperature)
Detection zone
Display range
Measuring range
Analogue signal in the measuring range
with factory setting
UK
Scaled measuring range
Analogue signal for scaled measuring
range
4.4 Measured value damping (dAP)
The damping time allows to set after how many seconds the output signal has
reached 63 % of the final value if the flow value changes suddenly� The set damping time stabilises the outputs and the display� The signals [UL] and [OL] (→ 12)
are defined under consideration of the damping time�
7
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