KROHNE OPTITEMP TRA-TCA Plus EN - Manual (Page 46)

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TECHNICAL DATA
46
OPTITEMP TRA/TCA PLUS
www.krohne.com 01/2012 - 4000630301 - MA OPTITEMP TRA/TCA Plus R01
Measuring accuracy
Reference conditions Ambient temperature: +23°C / +73.4°F (fluctuations due to air
pressure and density have no impact on measuring accuracy.)
Maximum measuring error More detailed information in the subsection "Measurement Error"
(also in the "Technical Data" section). The maximum measurement
error also depends on the type of sensor:
• Measuring insert with Pt100 RTD: measurement error in
accordance with tolerance classes A, B, 1/3 B and 1/10 B according
to DIN EN 60751.
• Thermocouple: measurement error in accordance with tolerance
class 1 acc. to DIN EN 60584.
Operating conditions
Load limits The load limits depend on several factors (e.g. dimensions, design
and material of thermowell). Other information can be found in the
"Installation" section or in separate subsections of section "Technical
data".
Thermometer without thermowell: 0.8...1.2 bara / 11.6...17.4 psia.
Temperature Temperature Temperature Temperature
Process temperature -200...+600°C / -328...+1112°F, depending on measuring insert,
design and material. Thermometer with thermocouple: Measuring
inserts without thermowell can be used up to 1100°C / 2012°F
Ambient temperature -40...+100°C / -40...+212°F, depending on connection head and
measuring insert.
Storage temperature -40...+70°C / -40...+158°F at 40...60% relative humidity.
Other conditions Other conditions Other conditions Other conditions
Protection categories Depends on the connection head and the cable gland used: IP 54
(BKK), IP 65 (BA, BUZ-T/S/H/HW, BVA), IP 67 (BGK), IP 68 (AXD)
Installation conditions
Insertion angle 90° to the flow, directly against or diagonally against the flow.
Insertion length 10...15 x thermowell diameter, minimum 100 mm / 3.94" (shorter
insertion lengths possible but they impair measuring accuracy).
Pipes with Ø ≤ 300 mm / 11.8" The thermowell tip should project past the middle of the pipe.
Pipes with Ø > 300 mm / 11.8" The thermowell tip may only project beyond the middle of the pipe
when the mechanical load permits and the thermowell is not excited
in its resonance; when in doubt, check the individual case again.
Bending radius The immersion tubes on the measuring inserts can be bent but the
smallest bending radius must be at least 3 times the diameter of the
immersion tube.
Note: Do not bend the bottom 50 mm / 2"!
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