AFRISO EMA AB
• Kilvägen 2, 232 37 Arlöv • Sweden • Phone +46-(0)40-92 20 50 • [email protected] • www.afriso.se
9
OSA 3
Seperator alarm OSA 3 • Manual
Wiring the system using individual cables
When fitting an ultrasonic sludge
sensor a junction box should
always be used that allows the
equalisation of the earth potential
outside of the alarm control unit.
When connecting more than 1 sensor it is
recommended that a junction box is used.
If a junction box is not used all cable joints
should be sealed using heat shrink tubing.
When connecting an ES8 sludge sensor an
external junction box should be used that
allows the shielded cable to be grounded
to earth.
Terminals
K1: 230 VAC, 4 VA
K2: R1 Voltage free relay output (Symbols
on the circuit board are indicated in the
alarm condition)
K2: R2 Voltage free relay output (Symbols
on the circuit board are indicated in the
alarm condition)
K4: Terminal contact for membrane keypad
ribbon cable (not shown)
K3: 1-G Capacitive sensor ES4
K3: 2-G Thermal sensor R6-S
K3: 3-G Sludge sensor ES8
Recommended cable
Power supply: 3 x 1.5 mm²
Separate cable for sensor ES4 and
R6-S: 2 x 1 mm²
Separate cable for sensor ES8: 3 x 1 mm²
or 2 x 1 mm² with shielding
230 VAC
Layer sensor - ES4
Damming sensor - R6-S
Sludge sensor - ES8
Junction box
2
1 2
1
2
1
+