P. 2
Setup and Operation
V6.x // 06-2016
Installation and mounting
E-litro devices are not viable for external installation (safety class IP50).
The tank monitoring system is no overfill safety.
During the tank filling the
secu4
assists to avoid an overfilling after TRwS 791.
It will report a filling limit ALARM to interrupt the current loop of the limit indicator
and disable the tank filling.
The
secu4
does not replace but support the limit indicator by monitoring the
downstream battery tanks.
For installation and mounting of the devices mentioned above please follow the
conditions of the respective manual. The corresponding safety instructions for electric
devices and oil tanks need to be observed.
The startup is performed after successful mounting.
The displaying devices of the
e-litro®
series are applicable for liquid level measurements of tanks
operated unpressurized.
Maximum display value: 10,000 liters
(per tank, in case of
secu4
)
The liquid level is indicated by the LCD display. The instrument versions
e-litro net
and
e-litro
gsm
are able to retransmit the displayed data and the present status (data transfer via RDT).
The devices of the
e-litro
series are equipped with a power plug for 230V sockets.
The transducer (sensor) is connected to the measuring input of the
e-litro
displaying device.
Usually the transducer is the electronic-pneumatically measuring LITRO-Sensor: A level
measurement sensor with a measurement range of 0-25 kPa (0-250 mbar) for relative
hydrostatic pressure.
Measuring input: 4-20 mA analog signal, 2-wire principle with sensor supply of 20V dc.
clamp 1
= plus,
white
(or red)
clamp 2
= minus,
brown
(or black)
Other transducers with 4-20 mA signal
could also be connected to the
e-litro
displaying devices
(except for
secu4
).
CONCEPT:
e-litro / e-litro net / e-litro gsm
with LITRO-sensor
