Owner's manual

7 TECHNICAL DATA
54
OPTITEMP TRA/TCA
www.krohne.com 08/2010 - 4000630501 - MA OPTITEMP TRA/TCA R01 en
7.6 Measuring range and permitted load
Temperatures that can be measured with an industrial thermometer depend largely on the load
of the thermometer. Load limits are defined through a variety of factors (see the subsection
"Load limits" in the "Installation" section). For this reason, the manufacturer cannot make any
universally valid statements about the measuring range and permissible load.
To prevent destruction or damage, never operate the thermometer outside of its permissible
mechanical, thermal or chemical limits. For further information refer to the rest of this section
and the "Technical Data" section.
Operating limits of thermowells with Ø 9 mm / 0.35"
CAUTION!
The information in this subsection is informative only and does not reflect the vibration load
caused by flow-induced vibration. If necessary, prior to purchasing and installing an industrial
thermometer, have a specific strength calculation performed (e. g. per DITTRICH or MURDOCK).
For further information contact the manufacturer.
CAUTION!
To prevent destruction or damage, only operate a thermometer without a thermowell in the
range of 0.8...1.2 bara / 11.6...17.4 psia.
INFORMATION!
The manufacturer can provide an optional strength calculation for a fee.
Process connection Insertion length p
max
at +20°C / +400°C
(+68°F / +752°F), air
p
max
at +20°C / +400°C
(+68°F / +752°F), water /
steam
[mm] ["] [bar] [psi] [bar] [psi]
Thread G½", G¾", G1",
½"NPT, ¾"NPT
160 6.3 50 / 36 725 / 522 50 / 36 725 / 522
250 9.8 40 / 36 580 / 522 40 / 36 580 / 522
400 15.7 16 / 18 232 / 261 18 / 18 261 / 261
Flanges DN25 and 50
(PN40)
160...250 6,3...9.8 40 / 29.2 580 / 424 40 / 29.2 580 / 424
400 15.7 16 / 18 232 / 261 18 / 18 261 / 261
Flanges ASME 1" and
1½" (150 lb)
160...250 6,3...9.8 19 / 6.5 276 / 94.3 19 / 6.5 276 / 94.3
400 15.7 16 / 6.5 232 / 94.3 18 / 6.5 261 / 94.3
Flanges ASME 1" and
1½" (300 lb)
160 6.3 49.6 / 29.4 719 / 426 49.6 / 29.4 719 / 426
250 9.8 40 / 29.4 580 / 426 40 / 29.4 580 / 426
400 15.7 16 / 18 232 / 261 18 / 18 261 / 261
• Straight thermowell
• Air flows against the thermometer at 25 m/s (82 ft/s), water / steam at 3 m/s (9.8 ft/s)
• Material 1.4571
.book Page 54 Tuesday, August 17, 2010 12:18 PM