Emerson Rosemount 3144P Quick Start Manual page 19

January 2024
3. See instructions for relation between process temperature,
ambient temperature, and temperature class/ maximum
surface temperature "T".
4. For 3144P temperature transmitters with "XA" designation,
the spring-loaded adapter style sensors must be installed in
a thermowell to maintain Ex tb protection.
Process temperature
range at sensor
connection
-60 °C to +70 °C
-60 °C to +80 °C
Sensor connection is where the sensor threads into the
(1)
transmitter or junction box housing
5.4.2 I1 ATEX Intrinsic Safety
Certificate
Standards
Markings
Special Conditions for Safe Use (X):
1. When fitted with the transient terminal options, the
equipment is not capable of passing the 500 V insulation test.
This must be taken into account during installation.
2. The enclosure may be made from aluminum alloy with a
protective polyurethane paint finish; however, care should be
taken to protect it from impact or abrasion when located in
Zone 0.
5.4.3 N1 ATEX Type n
Certificate
Standards
Markings
Quick Start Guide
Ambient temperature
range (°C)
(°C).
(1)
-60 °C to +70 °C
-60 °C to +80 °C
Baseefa03ATEX0708X
EN IEC 60079-0: 2018; EN 60079-11:2012
II 1 G Ex ia IIC T4 Ga; T4(-60 °C ≤ T
See Table 5-4 for entity parameters.
Baseefa03ATEX0709X
EN IEC 60079-0:2018, EN 60079-15:2010, EN IEC
60079-7:2015+A1: 2018
II 3 G Ex ec IIC T5 Gc; T5(-40 °C ≤ T
IIC T5 Gc; T5(-40 °C ≤ Ta ≤ +75 °C)
Quick Start Guide
Temperature class
T6
T5...T1
≤ +60 °C)
a
≤ +75 °C); Ex nA
a
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