TMT162
12 Endress+Hauser
Example for calculating measured error for ambient temperature drift:
Input temperature drift Δϑ = 10 K (18 °F), Pt100, measuring range 0 to 100 °C (32 to 212 °F)
Maximum process temperature: 100 °C (212 °F)
Measured resistance value: 138.5 Ω (IEC 60751) at maximum process temperature
Typical temperature drift in Ω: (0.001% of 138.5 Ω) * 10 = 0.01385 Ω
Conversion to Kelvin: 0.01385 Ω / 0.385 Ω/K = 0.04 K (0.054 °F)
Influence of reference
junction (cold junction)
Pt100 DIN IEC 60751 Cl. B (internal reference junction with thermocouples TC)
Installation conditions
Installation instructions Mounting location
Direct mounting on the thermometer assembly or indirect mounting using mounting bracket (see
’accessories’).
a0003586-de
A, B: Mounting with combined wall/pipe mounting kit
C: Mounting with pipe mounting kit 2" /V4A
Environment conditions
Ambient temperature limits • Without display: -40 to +85 °C (-40 to 185 °F)
• With display: -40 to +70 °C (-40 to 158 °F)
For use in Ex area, see Ex certificate
Note!
At temperatures < -20 °C (-4 °F), the display may react slowly. Readability of the display cannot be guaranteed
at temperatures < -30 °C (-22 °F).
Storage temperature • Without display: -40 to +100 °C (-40 to 212 °F)
• With display: -40 to +85 °C (-40 to 185 °F)
Altitude Up to 2000 m (6560 ft) above sea level according to IEC 61010-1, CSA 1010.1-92
Climate class As per IEC 60654-1, Class C
A
B
C
0.98 25()
7.15
181.6()
6.4
162.6()
inches (mm)
Æ
()
2.01
51
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