© National Instruments
|
1-15
temperature and can affect the measurement accuracy of modules in the controller.
Figure 1-9 shows the controller mounted horizontally. Refer to the
section for complete panel mounting instructions.
Measure the ambient temperature at each side of the controller, 63.5 mm (2.5 in.) from
the side and 50.8 mm (2 in.) forward from the rear of the controller, as shown in
Figure 1-10.
For more information about how different mounting configurations can cause
temperature derating, go to
and enter the Info Code
cdaqmounting
.
Figure 1-9.
NI cDAQ-9138/9139 Mounted Horizontally with Panel Mount Kit
Figure 1-10.
NI cDAQ-9138/9139 Temperature, Cooling, and Cabling Dimensions
Up
NI
NI cDAQ-9139
cDAQ-9139
NI CompactDAQ
NI CompactDAQ
C
ab
ling Cle
a
r
a
nce
50.
8
mm (2.00 in.)
Me
asu
re Am
b
ient
Temper
a
t
u
re Here
50.
8
mm
(2.00 in.)
6
3
.5 mm
(2.50 in.)
6
3
.5 mm
(2.50 in.)
50.
8
mm
(2.00 in.)
50.
8
mm
(2.00 in.)
29.2 mm
(1.15 in.)
Me
asu
re Am
b
ient
Temper
a
t
u
re Here
Cooling O
u
tline
50.
8
mm (2.00 in.)
Cooling O
u
tline
50.
8
mm (2.00 in.)
88
.1 mm
(
3
.47 in.)
NI
NI cDAQ-9139
cDAQ-9139
NI CompactDAQ
NI CompactDAQ
