Electrical Connections; Operation; Operating And Display Elements; Menu Levels - GEM 3030 mFlow Operating Instructions Manual

4.2 Disassembly
Corrosive chemicals!
® Risk of caustic burns.
● Carefully drain and rinse out all media-wetted
DANGER
parts before any transportation.
● Wear suitable protective gear.
Residual chemicals may collect on or penetrate the
sensor rod or fi tting of the GEMÜ 3030 mFlow.
5

Electrical connections

Danger of cable break!
® Damage to the device.
● Turn electrical connections
max. 360°.
To ensure that the fl owmeter can be safely
restarted after the power supply is interrupted,
the power interruption must be longer than three
seconds.
In the case of the Profibus DP design, the RS-232
interface is omitted.
● Connect 24V DC supply voltage to plug X1.
B-coded
4 3
5
1 2
X1
Connection Pin Signal name
1 Uv, 24V DC supply voltage
2 Make contact, output K1, 24 V DC
X1
M12 plug 3 GND
A-coded
4 Make contact, output K2, 24 V DC
5 n.c.
Connection Pin Designation
1 n.c.
2 n.c.
X2
B-coded 3 RXD, RS 232
M12 plug
4 TXT, RS 232
5 GND, RS 232
Connection Pin Designation
1 I+, current output
2 I-, current output
X3
A-coded 3 Function earth
M12 plug
4 24 V DC, pulse output
5 GND, pulse output K3
3030 mFlow
2
3 5 1
4
max. 360°
4 3
5
1 2
4 3
X2
5
1 2
X3
6

Operation

6.1 Operating and display elements

Back key Forwards key

6.2 Menu levels

The GEMÜ 3030 mFlow contains two menu levels. These are
the working level ( Mode) and the confi guration level (Setup).

6.2.1 Working level (Mode)

The GEMÜ 3030 mFlow is automatically at this level after the
supply voltage is switched on.
6.2.2 Confi guration level (Setup)
Various parameters can be set at this level in order to optimally
adapt to the application conditions.
7

Changing parameters

For the GEMÜ 3030 mFlow, the keys
are used to select the various menus in accordance with to
chapter 8. Confi guration menu.
The changes to the parameters required are made using
brackets that are put round the respective parameters.
Use the or key to move the cursor onto the respective
parameter and change it with the
Example:
The unit of measure (Unit) should be changed from l/h to l/
min.
8 / 40
2-line display
Plus key Minus key
+ ‫ـ‬
+ ‫ـ‬
or key.