iTEMP TMT142B Technical data
Endress+Hauser 57
Analog output long-term drift
D/A long-term drift
1)
(±)
after 1 month after 6 months after 1 year after 3 years after 5 years
0.018% 0.026% 0.030% 0.036% 0.038%
1) Percentages based on the configured span of the analog output signal.
Influence of the reference
junction
Pt100 DIN IEC 60751 Cl. B (internal reference junction with thermocouples TC)
If an external RTD Pt100 2-wire sensor is used for the reference junction measurement,
the measured error caused by the transmitter is < 0.5 °C (0.9 °F). The measured error of
the sensor element also needs to be added.
13.5 Environment
Ambient temperature • –40 to +85 °C (–40 to +185 °F), for hazardous areas see Ex documentation → 60
• Without display: –40 to +85 °C (–40 to +185 °F)
• With display: –40 to +80 °C (–40 to +176 °F)
• With overvoltage protection module: –40 to +85 °C (–40 to +185 °F)
The display may react slowly at temperatures < –20 °C (–4 °F). The readability of the
display cannot be guaranteed at temperatures < –30 °C (–22 °F).
Storage temperature • Without display: –50 to +100 °C (–58 to +212 °F)
• With display: –40 to +80 °C (–40 to +176 °F)
• With overvoltage protection module: –50 to +100 °C (–58 to +212 °F)
Relative humidity Permitted: 0 to 95 %
Operating altitude Up to 4 000 m (13 123 ft) above sea level
Climate class As per IEC 60654-1, Class Dx
Degree of protection Die-cast aluminum or stainless steel housing: IP66/67, Type 4X
Shock and vibration
resistance
Shock resistance according to DIN EN 60068-2-27 and KTA 3505 (Section 5.8.4 shock
test): 30g / 18 ms
Vibration resistance according to DIN EN 60068-2-6:
• 2 to 8.6 Hz / 10 mm
• 8.6 to 150 Hz / 3g
The use of L-shaped mounting brackets can cause resonance (see pipe 2" mounting
bracket in the 'Accessories' section). Caution: vibrations at the transmitter may not
exceed specifications.
Electromagnetic
compatibility (EMC)
CE compliance
Electromagnetic compatibility in accordance with all the relevant requirements of the
IEC/EN 61326 series and NAMUR Recommendation EMC (NE21). For details, refer to the
Declaration of Conformity.
Maximum measured error <1% of measuring range.
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