User Manual for PuraLev
®
200MU
www.levitronix.com
PL-4031-00, Rev07, DCO# 20-144
14
Figure 16: Temperature curves of motor BSM-1.x with air cooling module ACM-1.1
(Pump head LPP-200.6 and representative for LPP-200.12/14, liquid. temp = 90
0
C, Air Cooling Module ACM-1.1 with 0.5 bar air at 20
0
C)
Figure 17: Influence of liquid temperature on motor temperature
(Measurement at 7000 rpm 11 lpm but gradients are representative for other operational points)
The above curves are measurements of the motor temperature at certain liquid and ambient temperatures.
Equation
shows how to calculate the motor temperature for other liquid and ambient temperatures
based on these curves.
77
97
117
137
157
177
197
0.0
1.0
2.0
3.0
4.0
5.0
25
35
45
55
65
75
85
95
0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
22.5
[F]
[gallons/min]
[°C]
[liters/min]
Ambient Temp = 25
C
Liquid Temp. = 90
C
Viscosity = 0.7 cP
Air cooling with ACM-1.1
0.5 bar, ~20
C air
Absolute Temperature Limit
Recommended Operational Limit
---- 48 VDC Supply
24 VDC Supply
10000 rpm
9000 rpm
6000 rpm
7000 rpm
8000 rpm
y = 0.49x + 41.731
y = 0.28x + 26.05
77
97
117
137
157
177
197
77
87
97
107
117
127
137
147
157
167
177
187
25
35
45
55
65
75
85
95
25
30
35
40
45
50
55
60
65
70
75
80
85
90
[F]
[F]
[°C]
Liquid Temperature in [°C]
Ambient Temp = 25
C
Specific gravity = 1 g/cm³
Viscosity = 0.7 cP
No Active Cooling:
Temperature Gradiant = 0.49
(Liquid vs. Motor Temperature)
Active Cooling with ACM-1.1 (0.5 bar @ 20
C):
Temperature Gradiant = 0.28
(Liquid vs. Motor Temperature)
Absolute Temperature Limit