Elko EP HRH-1 Manual De Instrucciones página 6

Example of usage
For controlling two independent tanks
container with
the monitored
level
OUT1- relay D
pump control or other output device
For controlling the level combination of upper and bottom probe
Un
A1 A2 C D H S
16 15 18 28 25 26
output relays for pump control or other output devices,
selecting contacts is depending on the selected function
Note:
As a common probe, it could be used with an advantage such as metal pipes, tanks, etc.
Due to the isolation of probes from a supply voltage, and the measured voltage which is
up to 5 V, it is possible to connect probes using standard communication cables.
Un
A1 A2 C D H S
container with
the monitored
level
16 15 18 28 25 26
pump control or other output device
container
with the
monitored level
Measuring probes
There can be any measuring probe (any conductive contact, it is recommended to use
brass or stainless steel).
The probe wire does not need to be shielded, but it is recommended. When using a
shielded wire, the shielding is connected to terminal S.
• Manufacturer's recommended probes:
SHR-1-N - stainless steel sensor
SHR-1-M - brass sensor
SHR-2 - stainless steel mounted in PVC cover
SHR- 3 - stainless probe intended to be used in harsh industrial environments
FP-1 - fl ood probe
• Factory recommended conductor (certifi ed to be used in drinking water):
Three-wire cable D03VV-F 3x0.75/3.2
Cable D05V-K 0.75/3.2
OUT2 - relay H
Warning
The device is constructed to be connected into 1-phase main and must be installed in
accordance with regulations and norms applicable in a particular country. Installation,
connection and setting can be done only by a person with an adequate electro-technical
qualifi cation which has read and understood this instruction manual and product
functions. The device contains protections against over-voltage peaks and disturbing
elements in the supply main. Too ensure correct function of these protection elements
it is necessary to front-end other protective elements of higher degree (A,B,C) and
screening of disturbances of switched devices (contactors, motors, inductive load etc.)
as it is stated in a standard. Before you start with installation, make sure that the device
is not energized and that the main switch is OFF. Do not install the device to the sources
of excessive electromagnetic disturbances. By correct installation, ensure good air
circulation so the maximal allowed operational temperature is not exceeded in case of
permanent operation and higher ambient temperature. While installing the device use
screwdriver width approx. 2 mm. Keep in mind that this device is fully electronic while
installing. Correct function of the device is also depended on transportation, storing and
handling. In case you notice any signs of damage, deformation, malfunction or missing
piece, do not install this device and claim it at the seller. After operational life treat the
product as electronic waste.
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