Setting And Operation; Setting - Grundfos LT 200 Instrucciones De Instalación Y Funcionamiento

4. Setting and operation

When the LT 200 is connected to the power supply,
the display normally shows the actual level (metres
head). If no pressure transmitter is connected
(current input measures < 4 mA), the display will
show "---" instead as an indication of wire
breakage/sensor fault.
Fig. 5 Control panel on LT 200
The five indicator lights have these functions:
Indicator
Description
light
Illuminated when the LT 200 is
connected to the power supply and
functioning normally.
Level is higher than setpoint L4;
output L4 is activated.
Level is higher than setpoint L3;
output L3 is activated.
Level is higher than setpoint L2;
output L2 is activated.
Level is higher than setpoint L1;
output L1 is activated.
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4.1 Setting

You can set these parameters to adapt the LT 200 to
the application:
• range of pressure transmitter
• selection of LC, LCD 108 or LC, LCD 110
• four setpoints for activation of the four level
outputs L1 to L4.
Reading of parameters
Press [ ∧ ] and [ ∨ ] to see the actual parameter
settings. Flashing yellow indicator lights indicate
which parameter is shown in the display:
Indicator
Description
light
Setpoint L1
Setpoint L2
Setpoint L3
Setpoint L4
Setpoint for pressure transmitter
(level in metres corresponding to
20 mA, full scale)
If the LT 200 is connected to LC or
LCD 108, outputs L1 and L2 are
activated, +5 V, and outputs L3 and
L4 are activated, 0 V.
If the LT 200 is connected to LC or
LCD 110, all outputs are activated,
+5 V.
If no button is pressed for more than eight seconds,
the display and the yellow indicator lights will return
to normal indication of the actual level.