Seal Condition - Homa MX 34 Série Original-Manuel D'instructions De Montage

Switch-off temperature of the sensors:
Motor
AM173...T 6pol
MX3456-62
MX3452-62 AM204...P 4pol
K3352-58
VX34... AM204...P 6pol
MX3468-74
K3366-70
KX4454-62
AM204...P 6pol
KX4454-62
VX3460-66 AM243...F 4pol
MX3468-74
K3360-64
K5564-72 AM243...F 6pol
KX4468-80
AM243...F 8pol
K5564-76
AM303...G 4pol
VX3468-71
K3366-70
KX4468-72
K5574-76 AM303...G 6pol
KX4483-92
KX6678-86
AM303...G 8pol
KX6680-95
AM373...H 4pol
KX4476-92
AM373...H 6pol
KX6689-95
KX86100-102
KX86100-110 AM373...H 8pol
KX86104-110 AM420...R 6pol
6.3. Condition Sensors
a) Seal condition sensors at pumps with oil chamber (mod-
els without cooling jacket or model „U" with cooling jacket
and open circuit cooling):
In case of water entering the oil chamber through the shaft
seals, the resistance will change.
The electrical resistance of the oil in the oil chamber is
measured by 2 sensors.
The sensors must be connected by 2 wires (marked S1
and S2) of the pump connecting cable in the control panel
with a tripping unit with galvanically separated safety circuit
(electrode relay, e.g. HOMA part no.: 1610995).
For explosion-proof models an intrinsically-safe relay
(HOMA part no.: 1416510) must be used.
The tripping unit should have an adjustable sensitivity of 0
to 100 kiloohm, standard setting is approx. 50 kiloohm.
b) Seal condition sensors at pumps without oil chamber,
with cooling jacket and closed (internal) cooling circuit
(model „L"):
A leakage chamber is controlled by two sensors for enter-
ing of cooling liquid (liquid water/glycol).
This leakage chamber is placed between the upper (motor-
side) shaft seal and the bottom ball bearing.
In case of cooling liquid entering the leakage chamber
through the upper shaft seal, the sensors contact.
The sensors must be connected by 2 wires (marked S1
and S2) of the pump connecting cable in the control panel
with a tripping unit with galvanically separated safety circuit
(electrode relay, e.g. HOMA part no.: 1610995).
For explosion-proof models an intrinsically-safe relay
(HOMA part no.: 1416510) must be used.
The tripping unit should have an adjustable sensitivity of 0
to 100 kiloohm, standard setting is approx. 50 kiloohm.
Stator Stator
winding winding
Normal Ex
T1+T3 T1+T2
Regulator Limiter
140°C 140°C
150°C 150°C
150°C 150°C
150°C 150°C
140°C 140°C
140°C 140°C
140°C 140°C
150°C 150°C
150°C 150°C
150°C 150°C
150°C 150°C
150°C 150°C
150°C 150°C
150°C 150°C
Lower Upper
bearing bearing
80°C
80°C
80°C
80°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
90°C 105°C
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