Samoa U-TANK 383 100 Guía De Servicio Técnico Y Recambio página 5

INSTALLATION AND COMISSIONING
CHANNELS 1 AND 2
This unit can control up to 2 fluid tanks, each of them will
be connected into one channel of the unit. Both channels
are symmetrical and has the same functionality (inputs/
outputs). If only one tank is connected to the unit, it must
be assigned to channel 1.
4
Contact probe
1
input (signal/
warning/stop)
[1] CONTACT PROBE INPUTS
These three inputs allow to connect up to three contact
probes (float type or equivalent). Only normally-open
(NO, the electrical contact inside the probe must stay
open when the fluid level is below the probe) switch-type
probes can be used.
Each input has a different logic meaning:
S1 (SIGNAL): changes the stock level indicated in both
the display and the graph bar.
S2 (WARNING): triggers the warning level into the
system.
S3 (STOP): triggers the stop level into the system.
Note that the three probes must be set at different heights
depending on the type of tank being monitored (fresh
fluid tank or waste fluid tank):
SAMOA Industrial, S.A. · Pol. Ind. Porceyo, I-14 · Camino del Fontán, 831 · 33392 - Gijón - Spain · Tel.: +34 985 381 488 · www.samoaindustrial.com
Pump control
output
OUT
Analog
2
(pressure)
probe input
IN 1
For each channel, these are the available inputs/outputs.
The following picture is for channel 1; channel 2 is
identical:
External alarm
5
output
OUT OUT
1 2 3
ANALOG IN
IN 2 IN 3
S1
S2
S3
Fresh fluid tank
Also, it is possible to use only one or two contact probes:
if only one probe is used, it must be connected to S3
(STOP) input; if only two probes are used, they must be
connected to S2 (WARNING) and S3 (STOP).
6
Overfill valve
control output
3
Overfill
contact
probe
input
IN 4
S3
S2
S1
Waste fluid tank
R. 06/20 838 854
EN
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