Siemens LR 460 사용자 설명서
Page A-76
SITRANS LR 460 – INSTRUCTION MANUAL
7ML19985JM01
m
mmmm
A: T
e
c
hni
cal
R
e
fe
re
nce
Maximum Process Temperature Chart
To check maximum and minimum temperatures recorded via SIMATIC PDM, open the menu
View – Peak Values, and click on the temperature tab. The peak temperatures indicate the extent
of change required to the installation in order to provide a reliable thermal-operating zone for
SITRANS LR 460.
View – Peak Values, and click on the temperature tab. The peak temperatures indicate the extent
of change required to the installation in order to provide a reliable thermal-operating zone for
SITRANS LR 460.
• For example, if the internal temperature exceeds the maximum allowable limit, a
sun shield or a longer nozzle may be required.
To check temperature peaks via the handheld programmer, press
(#6) to view internal
temperature on the LCD secondary display.
.
Where the chart does not apply, please use your own judgement regarding the use of
SITRANS LR 460.
SITRANS LR 460.
WARNING: Internal temperature must not exceed 85
o
C (185
o
F).
Note:
The chart below is for guidance only.
6
Maximum Flange and Process Temperatures versus Allowable Ambient
for SITRANS LR 460
max.
flange
temperature
max.
process
temperature
A
m
bient
T
emper
at
ur
e (
o
C)
Flange and Process Surface Temperatures (
o
C)
0
50
60
100
200
150
40
20
0
• The chart above is provided for
guidance only.
• It does not represent every possible
process connection arrangement.
• It does not take into consideration
heating from direct sunshine
exposure.
exposure.
ambient
temperature
process temperature
flange
temperature