Maximum Process Temperature Chart; Flange Adapter Versions Of Sitrans Lr250 - Siemens LR250 Instruction Manual

Maximum Process Temperature Chart

Flange Adapter versions of SITRANS LR250

WARNING: Internal temperature must not exceed 80 °C (176 °F).
Notes:
• The chart below is for guidance only.
• The chart does not represent every possible process connection arrangement. For
example, it will NOT apply if you are mounting SITRANS LR250 directly on a metallic
vessel surface.
• The chart does not take into consideration heating from direct sunshine exposure.
.
Maximum Process Temperatures versus allowable ambient
90
80
70
60
50
40
30
20
10
0
0 50
Process Temperature (
Where the chart does not apply, please use your own judgement regarding the use of
SITRANS LR250.
See Current Internal Temperature (3.2.1.) on page 102 to monitor the Internal Temperature.
If the internal temperature exceeds the maximum allowable limit, a sun shield or a longer
nozzle may be required.
7ML19985JE06
process
temperature
100 150 200
o
C)
SITRANS LR250 (HART) – INSTRUCTION MANUAL
250
internal enclosure
temperature
ambient
temperature
process
temperature
Page 139