User Manual for PuraLev
®
2000SU
www.levitronix.com
PL-4034-00, Rev02, DCO# 20-144
15
3.4 Thermal Management
3.4.1 Motor Temperature
The motor temperature depends on the ambient and liquid temperature, as well as on the hydraulic
operation point and the characteristics (viscosity and density) of the liquid.
temperature characteristics for aqueous liquids at room temperature. For higher liquid temperatures and
hydraulic operating points active cooling is recommended for example with the
Air Cooling Module
ACM-4.2
(see
) or the
Fan Cooling Module FCM-2000.1
).
Figure 16: Temperature curves for the LPM-2000.x motor @ 25 °C liquid temperature
(Temperature is measured inside of the motor, temperature of housing and sensor electronics is significantly below this temperature)
Figure 17: Temperature curves for the LPM-2000.x motor @ 60 °C liquid temperature
(Temperature is measured inside of the motor, temperature of housing and sensor electronics is significantly below this temperature)
77
97
117
137
157
177
197
0
5
10
15
20
25
30
35
25
35
45
55
65
75
85
95
0
20
40
60
80
100
120
140
[°F]
[gpm]
[°C]
[lpm]
Ambient Temp = 25
C
Liquid Temp. = 25
C
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
7000 rpm
6000 rpm
5000 rpm
4000 rpm
8000 rpm
Absolute Temperature Limit
Recommended Operational Limit
77
97
117
137
157
177
197
0
5
10
15
20
25
30
35
25
35
45
55
65
75
85
95
0
20
40
60
80
100
120
140
[°F]
[gpm]
[°C]
[lpm]
Ambient Temp = 25
C
Liquid Temp. =60
C
Specific gravity = 1 g/cm
3
Viscosity = 0.7 cP
Temp. Time Constant = ~3 hours
7000 rpm
6000 rpm
5000 rpm
4000 rpm
8000 rpm
Absolute Temperature Limit
Recommended
Operational Limit