User Manual for BPS-4H (High Temp.)
www.levitronix.com
PL-2009-03, Rev04, DCO# 21-101
16
3.2 Power Consumption
Figure 17: Power Consumption of LC325P Controller for pumping sulfuric acid (96%) at 150°C
(Typical curves measured with pump head CP-4.25)
3.3 Temperature Monitoring
To avoid overheating of the system, the controller and motor temperatures are monitored online with an internal
sensor. If the controller temperature exceeds
70°C
(158°F)
or the motor temperature
90°C
(194°F)
for a
duration of more than
10
minutes, the system goes into an error state and the pump stops. At
80°C
(176°F)
controller temperature or
100°C (212°F)
motor temperature, the system stops immediately.
Start
Temperature
Monitoring
WARNING
YES
Temperature
> 70 °C ?
Temperature
> 80 °C ?
YES
YES
ERROR
Temperature
higher than 70 °C
for more than 10
minutes?
NO
ERROR
YES
NO
NO
Start
Temperature
Monitoring
WARNING
YES
Temperature
> 90 °C ?
Temperature
> 100 °C ?
YES
YES
ERROR
Temperature
higher than 90 °C
for more than 10
minutes?
NO
ERROR
YES
NO
NO
Figure 18: Controller temperature monitoring
Figure 19: Motor temperature monitoring
0
2
4
6
8
10
12
14
0
200
400
600
800
1000
0
5
10
15
20
25
30
35
40
45
50
55
[gallons/min]
[Watts]
[liters/min]
Specific gravity = 1.8 g/cm
3
Viscosity = ~ 5 cP
Ambient Temp. : 25 C
Liquid: Sulfuric Acid (96%)
3000 rpm
4000 rpm
4500 rpm
2000 rpm