Product Info

iTEMP TMT142
16 Endress+Hauser
Environment
Ambient temperature
• 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)
For hazardous areas see Ex documentation →  23
The display can react slowly at temperatures < –20 °C (–4 °F). The legibility 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)
Humidity
Permitted: maximum 0 to 95 %
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. All tests were passed both with and without ongoing digital HART® communication.
Maximum measured error <1% of measuring range.
Interference immunity as per IEC/EN 61326 series, industrial requirements
Interference emission as per IEC/EN 61326 series, Class B equipment
A shielded cable that is grounded on both sides must be used for sensor cable lengths of 30 m
(98.4 ft) and more. The use of shielded sensor cables is generally recommended.
Connection of the functional grounding may be needed for functional purposes. Compliance
with the electrical codes of individual countries is mandatory.
Overvoltage category
II
Degree of contamination
2